SkyView Autopilot Servo Installation & Maintenance Manual

6 Materials ................................................................................................ 6-1 7 Initial Servo and Bracketry Installation................................................ 7-1 7.1 Additional Tools ......................................................................................................... 7-1 7.2 Roll Servo Installation ................................................................................................ 7-1 7.3 Aircraft with De-icing Systems — Preparing for Pitch/Yaw Servo Installation ......... 7-19 7.4 Pitch Servo Installation ............................................................................................ 7-20 7.5 Yaw Servo Installation ............................................................................................. 7-33 7.6 Aircraft with De-icing Systems — Rerouting and Reconnecting Exhaust Tubing .... 7-49 8 Servo Electrical Connection ................................................................. 8-1 8.1 Custom Wire Harness Preparation ............................................................................ 8-2 9 Electric Trim Control ............................................................................. 9-1 10 Servo Troubleshooting ....................................................................... 10-1 10.1 Servos Offline Messages ......................................................................................... 10-1 10.2 Servo Slip Messages ............................................................................................... 10-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | v 10.3 Yaw Servo Calibration Failure ................................................................................. 10-2 10.4 Abnormal Operation ................................................................................................ 10-2 11 Servo Maintenance.............................................................................. 11-1 11.1 Service .................................................................................................................... 11-1 11.2 Calibration Procedure .............................................................................................. 11-1 11.3 Test Procedure ........................................................................................................ 11-2 11.4 Servo Operation Check ........................................................................................... 11-2 11.5 Servo Capstan Removal and Attachment ................................................................ 11-4 11.6 Cable Guard Adjustment ......................................................................................... 11-5 11.7 Shear Screw Replacement ...................................................................................... 11-5 11.8 Roll Servo Removal and Replacement .................................................................... 11-6 11.9 Pitch Servo Removal and Replacement .................................................................. 11-9 11.10 Yaw Servo Removal and Replacement ................................................................. 11-12 12 Appendix 1: Servo Capstan Removal / Installation Figure ............... 12-1 Page | vi SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 1-1 1 Introduction This document provides installation and configuration information for SkyView HDX autopilot servos and bracketry in Beechcraft Baron Model 58 airplanes. It also provides Instructions for Continued Airworthiness (ICA) for use by authorized personnel to service and maintain the servos according to Federal Aviation Regulation (FAR) 14 CFR § 23.1529 and 14 CFR 23 Appendix G. This document does not provide ICA for the SkyView HDX system. That information is provided in the SkyView HDX General Maintenance Manual document at dynoncertified.com/docs. 1.1 Document Control This document is released, archived, and controlled according to the Dynon Avionics document control system. To revise this document, a letter is submitted to the FAA with the revision. The FAA then accepts and approves any revision to Section 2: Airworthiness Limitations. After FAA acceptance/approval, Dynon posts the revised document for customer use at dynoncertified.com/docs, and STC owners and installers are notified of the new revision via an official Dynon Marketing email release. 1.2 Using this Manual To save paper, Dynon Avionics does not provide a printed version of this manual. However, Dynon grants permission to third parties to print this manual, as necessary. The most recent PDF version is available for download at dynoncertified.com/docs. This manual is updated periodically. It is important to use the most recent version when servicing SkyView components. Dynon suggests keeping a PDF version of the manual on a smartphone, tablet, or laptop computer while servicing SkyView components. Using the manual electronically allows quick navigation of the document, figures to be viewed in color, and keyword searches. 1.3 Intended Audience This document is intended for FAA-certified Airframe and Powerplant Technicians. It assumes technicians have the typical aircraft knowledge and training required to perform the procedures in this manual. Page | 1-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 1.4 Manual Iconography This manual uses the following iconography: Alerts reader to critical guidance that if not followed could result in an unsafe condition. Alerts reader to FAA regulatory information. Alerts reader to important installation and/or maintenance information. Alerts reader to helpful tips or suggestions. 1.5 Reference Documents The following documents are referenced in or supplement this manual: • 103261-000 SkyView HDX System Installation Manual, current revision • 103221-000 SkyView HDX General Maintenance Manual, current revision • 103947-000 SkyView HDX Wiring Diagram - Twin Engine, current revision • 103272-000 SkyView HDX Airplane Flight Manual Supplement, current revision • 103777-000 SkyView HDX System Equipment Installation Record, current revision • 103000-000 Dynon Servo Shear Screw Replacement Kit Instructions, current revision • FAR 23.1311-1C - Installation of Electronic Display in Part 23 Airplanes • AC 43.13-1B - Acceptable Methods, Techniques, and Practices - Aircraft Inspection • AC 43.13-2B - Acceptable Methods, Techniques, and Practices - Aircraft Alterations 1.6 Mechanical Drawings All mechanical drawings included in this manual are for reference purposes only. They should not be scaled or copied and used as templates or patterns. 1.7 Product Delivery Upon delivery, visually inspect all SkyView Autopilot components, brackets, fasteners, cable harnesses, and accessories for damage that may have occurred during shipping. If damage has occurred, contact Dynon Technical Support. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 1-3 1.8 Product Registration Register SkyView components at dynoncertified.com/register. Product registration verifies ownership, expedites warranty claims, and allows Dynon Avionics to send notification when product Service Bulletins and Technical Advisories are published. This site also allows owners and installers to register to receive news and product announcements from Dynon. Dynon will not share contact information with third-parties or send announcements without explicit consent. 1.9 Installation Record The technician or facility performing the installation should record where the equipment has been installed in the airplane. This documentation should be entered into airplane’s permanent record. Dynon provides a document template to record this information. Download the SkyView HDX Equipment Installation Record document at dynoncertified.com/docs. Page | 1-4 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 2-1 2 Airworthiness Limitations For any Airworthiness Limitations associated with the installation of SkyView Autopilot servos, see the SkyView HDX General Maintenance Manual document at dynoncertified.com/docs. It is the principal ICA document for the SkyView HDX system. Page | 2-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 3-1 3 Basic Control and Operation Pilots interact with all Autopilot functions through a SkyView HDX display unit. No special operating procedures are required for using the Autopilot. Control descriptions and detailed operating procedures are found in the SkyView HDX Airplane Flight Manual Supplement document at dynoncertified.com/docs. Operating limitations for the Autopilot are listed in the SkyView HDX Airplane Flight Manual Supplement document at dynoncertified.com/docs. Page | 3-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 4-1 4 Installation Compliance If the airplane receiving the installation has been modified, it may be difficult to use the information in this manual to completely substantiate the installation in compliance with STC SA02594SE. Therefore, it is the installer's responsibility to make the final determination of applicability for each individual airplane. Prior to completing the installation, and before returning the airplane to service, the installer must complete and submit a completed Form FAA 337 - Major Repair & Alteration (Airframe, Powerplant, Propeller, or Appliance) to the appropriate FAA Aircraft Registration Branch. The form must include the following: • Description of the autopilot servo installation. • Description of how the autopilot servos interface with existing equipment and systems. • Appropriately approved or acceptable data that demonstrates compliance. Refer to AC 43.9-1G - Instructions for Completion of FAA Form 337 for additional information. 4.1 Pre-installation Information Read and understand the following before proceeding with installation activities. Always install avionics equipment in accordance with the instructions in this manual and the guidance and approved engineering methods outlined the following FAA documents: • AC 23.1311-1C - Installation of Electronic Display in Part 23 Airplanes • AC 43.13-1B - Acceptable Methods, Techniques, and Practices - Aircraft Inspection • AC 43.13-2B - Acceptable Methods, Techniques, and Practices - Aircraft Alterations The certified technician who will authorize the airplane's return to service should agree with the installation plan (i.e., methods, component locations, wiring harness routing, etc.) before installation activities begin. This will help avoid potential rework should any part of the installation be found non-compliant. Page | 4-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 5-1 5 Control Cable Verification The SkyView Autopilot system for the Beechcraft Baron Model 58 airplanes is designed to attach to the airplane's original control cables. It is important for installers to verify the condition, rigging, tension, and diameter of the control cables before starting installation activities. The diameter of control cables should be measured in the vicinities where the autopilot servos will be installed. DO NOT connect an autopilot system to improperly rigged and tensioned control cables. This includes control cables that are frayed or do not meet manufacturers' specifications. To inspect the aileron control cable, installers need to access the area under left rear seat near FS118.5 (see Figure 1 for exact location) in accordance with the manufacturer's service manual. To inspect the elevator and rudder control cables, installers need to access the area behind the baggage area near FS207 (see Figure 18 for exact location) in accordance with the manufacturer's service manual. Dynon's bridle cable clamps are designed to meet the requirements below for wire rope as specified by MIL-DTL-83420. CONTROL CABLE NOMINAL DIAMETER MINIMUM DIAMETER MAXIMUM DIAMETER Aileron1 5/32" or, 5/32" and 1/8" 0.156" or, 0.156" and 0.125" 0.172" or, 0.172" and 0.139" Elevator 1/8" 0.125" 0.139" Rudder 5/32" 0.156" 0.172" 1) Roll servo installation kit includes materials for both 5/32" and 1/8" control cables. If the airplane's original control cables are outside this specification, contact Dynon Technical Support for a resolution. Out-of-specification control cables can cause cable clamps to slip under load. Page | 5-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 6-1 6 Materials The materials identified in Table 1 are provided to install the roll servo. ITEM numbers are also used to call-out parts in the installation figures. Table 1: Roll Servo Installation Materials ITEM DYNON P/N DESCRIPTION QTY 1 503406-000 SERVO ASSEMBLY: SV42C SERVO, CAPSTAN 1.0" R (Used for Roll) 1 1-1 SV42C SERVO 1 1-2 CAPSTAN 1.0" R 1 1-3 AN310-5 CASTLE NUT #5/16-24 1 1-4 WAVE WASHER 5/16" 1 1-5 NYLON WASHER 5/16" 1 1-6 PHILIPS PAN HEAD SCREW #6-32 X 1/4", NYLOK 4 1-7 MS35333-37 INT TOOTH LOCK WASHER 4 1-8 CABLE GUARD 1 2A 503672-000 CAPSTAN ACCESSORY KIT 1 2-1 AN365-10 LOCK NUT #10-32 6 2-2 AN960 FLAT WASHER #10 6 2-3 AN3-6A HEX BOLT #10-32, 25/32" L 6 2-4 BRIDLE CABLE CLAMP 5/32", 1/16" 4 2-5 BRIDLE CABLE 1/16" 1 2-6 ST2-2 STOP SWAGE, 1/16" CABLE 2 2B 503560-000 BRIDLE CABLE CLAMP KIT, 1/8" CONTROL CABLE 1 2-7 AN365-10 LOCK NUT #10-32 3 2-8 AN960 FLAT WASHER #10 3 2-9 AN3-6A HEX BOLT #10-32, 25/32" L 3 2-10 BRIDLE CABLE CLAMP 1/8", 1/16" 2 3 504179-000 ROLL SERVO PLATE BRACKET 1 Page | 6-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 ITEM DYNON P/N DESCRIPTION QTY 4 504178-000 ROLL SERVO FORWARD SUPPORT BRACKET 1 5 504177-000 ROLL SERVO REAR SPAR BRACKET 1 6 104112-000 ROLL SERVO INSTALLATION HARDWARE KIT 1 6-1 MS24665-210 COTTER PIN 1 6-2 AN525-832-R8 PHIL WASH HEAD SCREW #8-32, 1/2" L 4 6-3 AN365-832A LOCK NUT #8-32 4 6-4 AN960-08 FLAT WASHER #8 4 6-5 AN3H-4A HEX BOLT #10-32, 17/32" L, DRILLED HEAD 4 6-6 AN3H-4A HEX BOLT #10-32, 17/32" L 4 6-7 AN960-10 FLAT WASHER #10 8 6-8 CR3213-5-2 CHERRYMAX RIVET 4 Items without Dynon part numbers are parts packaged in a kit. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 6-3 The materials identified in Table 2 are provided to install the pitch and yaw. ITEM numbers are also used to call-out parts in the installation figures. Table 2: Pitch and Yaw Servo Installation Materials ITEM DYNON P/N DESCRIPTION QTY 7 503679-000 SERVO ASSEMBLY: SV32C SERVO, CAPSTAN 1.5" R (PITCH) 1 7-1 SV42C SERVO 1 7-2 CAPSTAN 1.5" R 1 7-3 AN310-5 CASTLE NUT #5/16-24 1 7-4 WAVE WASHER 5/16" 1 7-5 NYLON WASHER 5/16" 1 7-6 PHIL PAN HEAD SCREW #6-32 X 1/4", NYLOK 4 7-7 MS35333-37 INT TOOTH LOCK WASHER 4 7-8 CABLE GUARD 1 8 503933-000 SERVO ASSEMBLY: SV42C SERVO, CAPSTAN 0.68" R (YAW) 1 8-1 SV42C SERVO 1 8-2 CAPSTAN 0.68" R 1 8-3 AN310-5 CASTLE NUT #5/16-24 1 8-4 WAVE WASHER 5/16" 1 8-5 NYLON WASHER 5/16" 1 8-6 PHIL PAN HEAD SCREW #6-32 X 1/4", NYLOK 4 8-7 MS35333-37 INT TOOTH LOCK WASHER 4 8-8 CABLE GUARD 1 9A 503674-000 CAPSTAN ACCESSORY KIT 2 9-1 AN365-10 LOCK NUT #10-32 12 9-2 AN960 FLAT WASHER #10 12 9-3 AN3-6A HEX BOLT #10-32, 25/32" L 12 9-4 BRIDLE CABLE CLAMP 1/8", 1/16" 8 Page | 6-4 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 ITEM DYNON P/N DESCRIPTION QTY 9-5 BRIDLE CABLE 1/16" 2 9-6 ST2-2 STOP SWAGE, 1/16" CABLE 4 9B 504683-000 BRIDLE CABLE CLAMP KIT, 5/32" CONTROL CABLE (Used for Yaw) 1 9-7 AN365-10 LOCK NUT #10-32 6 9-8 AN960 FLAT WASHER #10 6 9-9 AN3-6A HEX BOLT #10-32, 25/32" L 6 9-10 BRIDLE CABLE CLAMP 5/32", 1/16" 4 10 503872-000 PITCH SERVO SHELF BRACKET 1 11 503876-001 STRINGER SPACER 2 12 504817-000 SHELF BRACKET SPACER 1/4" 4 13 503900-000 PITCH CONTROL CABLE RUB STRIP 1 14 503882-000 ACCESS COVER PLATE 1 15 503873-000 503873-001 YAW SERVO BRIDGE BRACKET1 1 16 503875-000 503875-001 YAW SERVO BOXING PLATE1 1 17 503895-002 PITCH/YAW SERVO BRACKET ASSY BRACE 2 18 504751-001 PITCH/YAW SERVO BRACKET ASSY GUSSET, LH 1 19 504767-001 PITCH/YAW SERVO BRACKET ASSY GUSSET, RH 1 20 504667-000 YAW SERVO ROLLER BRACKET 1 21 504669-000 YAW SERVO ROLLER 1 22 104787-000 STRINGER TEMPLATE, UPPER 1 23 104788-000 STRINGER TEMPLATE, LOWER 1 24 104114-000 PITCH/YAW SERVO INSTALLATION HARDWARE KIT 1 24-1 MS35206-245 PHIL PAN HEAD SCREW #8-32, 1/2" L 6 24-2 AN960-8 FLAT WASHER #8 14 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 6-5 ITEM DYNON P/N DESCRIPTION QTY 24-3 AN525-832R12 PHIL WASH HEAD SCREW #8-32, 3/4" L 4 24-4 AN365-832A HEX LOCK NUT #8-32 8 24-5 AN3-5A HEX BOLT #10-32, 21/32" L 4 24-6 AN960-10 FLAT WASHER #10 40 24-7 AN365-1032A HEX LOCK NUT #10-32 14 24-8 AN3H-4A HEX BOLT #10-32, 17/32" L, DRILLED HEAD 8 24-9 MS24665-210 COTTER PIN 2 24-10 AN3-4A HEX BOLT #10-32, 17/32" L 27 24-11 AN3-17 HEX BOLT #10-32, 2" L, DRILLED SHANK 1 24-12 AN310-3 CASTLE NUT #10-32 1 24-13 MS24665-132 COTTER PIN 1 24-14 AN525-832-R7 PHIL WASH HEAD SCREW #8-32, 7/16" L 4 Items without Dynon part numbers are parts packaged in a kit. 1) Parts ending in -000 and -001 are functionally equivalent. Page | 6-6 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-1 7 Initial Servo and Bracketry Installation This section provides instructions for installing the roll, pitch, and yaw servos and bracketry, and then attaching bridle cable assemblies to the aileron, elevator, and rudder control cables. The instructions apply to all Beechcraft Baron Model 58 airplanes. These instructions assume that the areas affected by these installations are unmodified from the factory-delivered configuration. Printing the figures at the end of this document and keeping them on-hand during installation activities is recommended. 7.1 Additional Tools The following non-typical tools are needed to complete the installation: • Swage compression tool appropriate for ST2-2 stop swages, • Cutters for 1/16" diameter wire rope. • Calibrated tensiometer. 7.2 Roll Servo Installation The roll servo and bracketry are installed in the fuselage on the forward, left-hand side of the Rear Spar Carry Through near FS118.5 (see Figure 1). To install the roll servo, installers need to access this area in accordance with the manufacturer's service manual. (See Figure 2 for an example of a complete installation.) Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Remove any previously installed autopilot equipment that may interfere with the servo installation. Remove any non-essential insulation or interior materials that may interfere with the servo installation. Always disconnect aircraft battery before starting installation activities. Always deburr drilled holes. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. Page | 7-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Figure 1: Roll Servo Location SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-3 Figure 2: Roll Servo Complete Installation Page | 7-4 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Figure 3: Roll Servo Bracketry SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-5 To install the roll servo: 1. Remove capstan and cable guard from roll servo (see Section 11.5 for instructions). DO NOT loosen or remove the shear screw from the servo disc! 2. Temporarily attach roll servo to plate bracket, as shown in Figure 4. Finger-tighten castle nut, and tighten, but do not torque, other hardware. Cotter pin and washers not needed yet. Position servo capstan so orientation mark on capstan faces away from servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. Figure 4: Attaching Roll Servo to Plate Bracket Page | 7-6 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 3. Temporarily attach forward support bracket and rear spar bracket to plate bracket (with roll servo), as shown in Figure 5. Tighten, but do not torque, hardware. Figure 5: Attaching Plate Bracket with Roll Servo to Support Brackets SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-7 4. Place plate bracket into airplane, as shown in Figure 6 and Figure 7. Make sure aileron control cable is on top of assembly and to rear of servo capstan. Positioning of servo capstan in relation to aileron control cable in height and distance is critical for an airworthy installation. Figure 6: Positioning Roll Servo Bracket Assembly 5. Position rear spar bracket on forward face of Rear Spar Carry Through so flanges on bracket span lightening hole (see Figure 6), and then clamp in place. 6. Loosen bolts securing forward support bracket and rear spar bracket to plate bracket (with roll servo). Page | 7-8 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 7. Using slots in plate bracket, adjust and position assembly so aileron control cable is 1/4" aft of cable guard and tracks (inboard and outboard) down center of capstan (see Figure 7), and then secure in place. Tighten, but do not torque, hardware. Figure 7: Positioning Capstan in Relation to Aileron Control Cable SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-9 8. On outboard side of lightening hole, use pilot holes on rear spar bracket as guides to match drill (#30) holes through front side of spar web only (see Figure 8), and then temporarily fasten in place. Figure 8: Drilling Holes for Roll Servo Brackets 9. Use pilot holes on forward support bracket as guides to match drill (#18) holes through bracket and floorboard stringer, as shown in Figure 8. 10. Remove forward support bracket and plate bracket (with roll servo). Page | 7-10 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 11. Use pilot holes on rear spar bracket as guides to match drill up to #20 holes through bracket and front side of spar web only (see Figure 9). Figure 9: Drilling Holes for Rear Spar Bracket SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-11 12. Permanently rivet rear spar bracket to spar web, as shown in Figure 10. Figure 10: Securing Rear Spar Bracket Page | 7-12 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 13. Permanently fasten support bracket to floorboard stringer, as shown in Figure 11. Figure 11: Securing Forward Support Bracket 14. Remove capstan from roll servo. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-13 15. Permanently fasten roll servo to plate bracket, and then safety wire roll servo bolts (see Figure 12). Figure 12: Safety Wiring Roll Servo Bolts (Example) 16. Permanently fasten plate bracket assembly to forward support bracket and rear spar bracket, as shown in Figure 13. Figure 13: Securing Plate Bracket with Roll Servo Page | 7-14 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 To attach the roll servo to the aileron control cable: 1. Secure ailerons in center of travel. 2. Insert bridle cable's engagement swage into capstan's engagement hole. 3. Start from swage engagement hole and wrap bridle cable 1/2 time in each direction around capstan, as shown in Figure 14. Securing (e.g., taping) the bridle cable to capstan grooves prevents cable from unraveling when handling. Figure 14: Installing Capstan with Bridle Cable 4. Temporarily attach capstan to roll servo (see Figure 14). Finger-tighten castle nut. Cotter pin not required at this time. Position servo capstan so orientation mark on capstan faces away from servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-15 5. Determine where inboard bridle cable clamps should attach to aileron control cable: A. If bridle cable clamps fit on outboard side of the turnbuckle (see Figure 15), use the 5/32" clamps. B. If bridle cable clamps fit on inboard side of the turnbuckle (see Figure 16), use the 1/8" clamps. Figure 15: Installing Roll Servo Bridle Cable and Clamps – Outboard of Turnbuckle Page | 7-16 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Figure 16: Installing Roll Servo Bridle Cable and Clamps – Inboard of Turnbuckle 6. Make sure aileron control cable where bridle cable clamps will attach is clean and free of dirt and grease. 7. Use bridle cable clamps to loosely connect inboard and outboard bridle cable ends to control cable, as shown in Figure 15 or Figure 16. Roll servo installation kit contains bridle cable clamps for 5/32" and 1/8" diameter control cables, ensure correct clamps are used per determination in Step 5. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-17 8. Position bridle cable clamps so that: • Capstan is positioned as shown in Figure 15 or Figure 16. • Clamps are located as shown in Figure 15 or Figure 16. • Clamps are positioned to avoid contacting any structures, insulation, or interior materials during entire travel. 9. Mark locations for swage stops on bridle cable at outside edges of bridle cable clamps. 10. Remove bridle cable clamps from bridle cable, and then remove capstan from roll servo. 11. Slide a swage stop onto one end of bridle cable so it is aligned with mark on bridle cable. 12. Permanently attach swage stop to bridle cable, and then trim bridle cable end flush with outside edge of swage stop. 13. Repeat Steps 11 and 12 on the other end of bridle cable. 14. Temporarily attach capstan to roll servo, as shown in Figure 14. Finger-tighten castle nut. Cotter pin not needed yet. Position servo capstan so orientation mark on capstan faces away from servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 15. Rotate capstan to locate swage engagement hole on opposite side of capstan from aileron control cable. Make sure bridle cable ends extend from capstan as shown in Figure 15 or Figure 16. 16. Use bridle cable clamps to loosely connect bridle cable ends to aileron control cable, as shown in Figure 15 or Figure 16. Make sure clamps contact swage stops at each end of bridle cable. 17. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 18. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6: Cable Guard Adjustment), and then repeat Step 17. 19. Using calibrated tensiometer, tension and secure bridle cable at 15–20 lbs. Make sure swage engagement hole is on opposite side of capstan from aileron control cable. The tension on the bridle cable should never exceed the manufacturer's specified tension for the control cable. 20. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. Page | 7-18 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 21. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable to determine if cable meets MIL-DTL-83420 specifications (see Section 5: Control Cable Verification). If not, contact Dynon Technical Support for a resolution. Out-of-specification cable clamps can slip under load. 22. Permanently attach capstan to roll servo (see Section 11.5 for instructions). To check the roll servo installation: 1. Release ailerons. 2. Move aileron control through full range of motion per manufacturer's maintenance instructions, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures, insulation, or interior materials during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 3. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely matches Figure 15 or Figure 16. • Capstan orientation mark is positioned as shown in Figure 15 or Figure 16. • Bridle cable tension has not changed. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-19 7.3 Aircraft with De-icing Systems — Preparing for Pitch/Yaw Servo Installation For aircraft with de-icing systems, it may be necessary to disconnect the exhaust tubes from the valve to facilitate installation of the pitch/yaw servo bracketry. Additionally, it is necessary to permanently remove the valve bracket's upper fastening hardware (see Figure 17). To disconnect exhaust hoses and remove valve bracket hardware: 1. Make sure airplane master power is OFF. 2. Access the area behind FS207 frame in accordance with the manufacturer's service manual. 3. Remove identified bracket fastener and disconnect exhaust tubes, as shown in see Figure 17. Figure 17: Removing Valve Bracket Hardware and Disconnecting Exhaust Tubes Page | 7-20 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 7.4 Pitch Servo Installation The pitch servo and bracketry are installed in the fuselage, behind the frame at FS207 (see Figure 18). To install the pitch servo, installers need to access this area in accordance with the manufacturer's service manual. (See Figure 19 for an example of a complete installation.) Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Remove any previously installed autopilot equipment that may interfere with the servo installation. Remove any non-essential insulation or interior materials that may interfere with the servo installation. Always disconnect aircraft battery before starting installation activities. Always deburr drilled holes. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-21 Figure 18: Pitch and Yaw Servo Locations Page | 7-22 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Figure 19: Pitch and Yaw Servos Complete Installation SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-23 Figure 20: Pitch and Yaw Servo Bracketry Page | 7-24 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 To install the pitch servo: 1. Remove capstan and cable guard from pitch servo (see Section 11.5 for instructions.) DO NOT loosen or remove the shear screw from the servo disc! 2. Inspect indicated nutplates on shelf bracket (see Figure 21) and ensure they do not enter bend radius. If they do, remove, rotate nutplate accordingly, and then re-attach nutplate using nutplate fixture for MS21047-03 nutplates. Figure 21: Inspecting Shelf Bracket and Attaching Rub Strip and Access Cover Plate 3. Attach cable rub strip to pitch servo shelf bracket (see Figure 21). 4. Optionally, attach access cover plate to shelf bracket (see Figure 21). The opening in the pitch servo shelf bracket provides access to factory- installed electric trim motors. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-25 5. Position stringer spacers on left and right fuselage stringers behind FS207 frame, as shown in Figure 22. Make sure spacers are positioned as far inboard as possible. Positioning stringer spacers parallel to the stringer with a 0.005 to 0.010 clearance to the return "J" flange on stringers. It is critical to prevent hardware from contacting existing rivet heads. Figure 22: Positioning and Installing Shelf Bracket and Stringer Spacers 6. Position shelf bracket behind FS207 frame, as shown Figure 22. Make sure outboard attachment flanges rest on stringer spacers. Positioning shelf bracket so it is square to the fuselage is critical to aligning other brackets later in the installation. Page | 7-26 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 7. Slide shelf bracket and stringer spacers forward until bracket’s forward attachment flanges contact beads formed into FS207 frame. Make sure bracket remains square with the fuselage and is aligned with the frame, as shown in Figure 23. Figure 23: Aligning Shelf Bracket 8. Clamp shelf bracket to fuselage stringers and FS207 frame. 9. Use Figure 23 to identify tooling holes near bottom of each side of FS207 frame, and then measure and mark locations for upper holes (see Figure 23). 10. Use tooling holes to match drill (up to #10) lower holes through FS207 frame and shelf bracket's forward attachment flanges. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-27 11. At lower hole locations, temporarily fasten FS207 frame to shelf bracket, as shown in Figure 24. Ensure spacers sit flush against frame and do not contact stiffening beads. 12. Use hole location marks to match (up to #10) upper holes through FS207 frame and shelf bracket's forward attachment flanges. 13. At upper hole locations, temporarily fasten FS207 frame to shelf bracket, as shown in Figure 24. Ensure spacers sit flush against frame and do not contact stiffening beads. Figure 24: Positioning and Installing Shelf Bracket 14. Use holes in shelf bracket's outboard attachment flanges as guides to match drill up to #18 holes through flanges and fuselage stringers, as shown in Figure 22. 15. Remove shelf bracket from aircraft. Page | 7-28 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 16. Attach pitch servo to shelf bracket (see Figure 25). Figure 25: Attaching Pitch Servo to Shelf Bracket 17. Attach cable guard to pitch servo (see Figure 26), and then safety wire pitch servo bolts (see Figure 27 for example). SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-29 Figure 26: Attaching Cable Guard to Pitch Servo Figure 27: Pitch Servo Safety Wiring Example 18. Permanently attach shelf bracket to aircraft, as shown in Figure 22 and Figure 24. Page | 7-30 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 To attach the pitch servo to the elevator up control cable: 1. Secure elevator in center of travel. 2. Insert bridle cable's engagement swage into capstan's engagement hole. 3. Start from swage engagement hole and wrap bridle cable 1 time in each direction around capstan, as shown in Figure 28. Securing (e.g., taping) the bridle cable to capstan groove prevents cable from unraveling when handling. Figure 28: Installing Pitch Servo Capstan and Bridle Cable 4. Temporarily attach capstan to pitch servo, as shown in Figure 28. Cotter pin not needed yet. Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 5. Make sure elevator control cable where bridle cable clamps will attach is clean and free of dirt and grease. 6. Use bridle cable clamps for 1/8" control cables to loosely connect forward and aft bridle cable ends to elevator control cable, as shown in Figure 29. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-31 Figure 29: Connecting Pitch Servo Bridle Cable to Elevator Up Cable 7. Position bridle cable clamps so that: • Swage engagement hole is on same side of capstan as control cable. • Clamps are located as shown in Figure 29. • Clamps are positioned to avoid contacting any structures, insulation, or interior materials during entire travel. 8. Mark locations for swage stops on bridle cable at outside edges of cable clamps. 9. Remove bridle cable clamps from bridle cable, and then remove capstan and cable guard from pitch servo (see Section 11.5 for instructions). 10. Slide a swage stop onto one end of bridle cable so it is aligned with mark on bridle cable. 11. Permanently attach swage stop to bridle cable, and then trim bridle cable end flush with outside edge of swage stop. 12. Repeat Steps 10 and 11 for opposite end of bridle cable. 13. Temporarily attach capstan to pitch servo, as shown in Figure 28. Cotter pin not needed yet. Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 14. Rotate capstan to locate swage engagement hole on opposite side of capstan from elevator control cable. Make sure bridle cable ends extend from capstan, as shown in Figure 29. Page | 7-32 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 15. Use bridle cable clamps to loosely connect bridle cable ends to elevator control cable, as shown in Figure 29. Make sure clamps contact swage stops at each end of bridle cable. 16. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 17. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6: Cable Guard Adjustment), and then repeat Step 16. 18. Tension and temporarily secure bridle cable to 15–20 lbs. Make sure swage engagement hole is on opposite side of capstan from elevator up cable. The tension on the bridle cable should never exceed the manufacturer's specified tension for the control cable. 19. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. 20. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable, and then contact Dynon Technical Support for a resolution. Out-of-specification cable clamps can slip under load. 21. Permanently attach capstan and cable guard to pitch servo (see Section 11.5 for instructions). To check the pitch servo installation: 1. Release elevator. 2. Move elevator control through full range of motion per manufacturer's maintenance instructions, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures, insulation, or interior materials during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 3. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely matches Figure 29. • Swage engagement hole is on same side of capstan as control cable. • Bridle cable tension has not changed. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-33 7.5 Yaw Servo Installation The yaw servo and its bracketry are installed in the fuselage, behind the frame at FS207 (see Figure 18). It is installed (i.e., stacked) on top of the pitch servo bracketry. To install the yaw servo, installers need to remove the FS170 access panel located behind the baggage area in accordance with the manufacturer's service manual. (See Figure 19 for an example of a complete installation.) Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Remove any previously installed autopilot equipment that may interfere with the servo installation. Remove any non-essential insulation or interior materials that may interfere with the servo installation. Always disconnect aircraft battery before starting installation activities. Always deburr drilled holes. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. To install the yaw servo: 1. Remove capstan and cable guard from yaw servo (see Section 11.5 for instructions.) DO NOT loosen or remove the shear screw from the servo disc! Page | 7-34 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 2. Secure yaw servo to bridge bracket (see Figure 30). Figure 30: Attaching Yaw Servo to Bridge Bracket 3. Attach cable guard to yaw servo (see Figure 31), and then safety wire yaw servo bolts (see Figure 32 for example). SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-35 Figure 31: Attaching Cable Guard to Yaw Servo Figure 32: Yaw Servo Safety Wiring Example Page | 7-36 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 4. Attach boxing plate to bridge bracket (see Figure 33). Do not fully tighten hardware yet. Depending upon time of purchase, the boxing plate and bridge bracket may have stickers that cover an unused fastener hole. Figure 33: Attaching Boxing Plate to Bridge Bracket SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-37 5. Attach roller bracket to bracket assembly (see Figure 34). Do not fully tighten hardware yet. Figure 34: Attaching Roller Bracket to Bracket Assembly Page | 7-38 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 6. Install roller, as shown in Figure 35. Finger-tighten castle nut onto roller bolt, and then use a wrench to tighten until a slot in castle nut lines up with hole for cotter pin. DO NOT overtighten the castle nut! Overtightening the castle nut may prevent the roller from moving freely. Figure 35: Installing Roller 7. Use a feeler gauge to measure gap between roller and bracket, ensuring a gap of at 0.005". SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-39 8. Insert bridle cable's swage into capstan's engagement hole (see Figure 36). Figure 36: Installing Yaw Servo Capstan and Bridle Cable 9. Start from swage engagement hole and wrap bridle cable 1-1/4 times in each direction around capstan, as shown in Figure 36. Securing (e.g., taping) the bridle cable to capstan grooves prevents cable from unraveling when handling. 10. Attach capstan to yaw servo (see Figure 36). Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. Page | 7-40 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 11. Install yaw servo and bracket assembly (see Figure 37). Figure 37: Installing Yaw Servo and Bracket Assembly SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-41 12. Locate existing gussets on FS207 frame (see Figure 38) and then remove inboard rivets (see Figure 38) that secure gussets to frame. Figure 38: Removing Rivets on Existing Gussets Page | 7-42 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 13. Using provided templates, mark centerlines on gussets and stringers, as shown in Figure 39. Figure 39: Marking Centerlines on Gussets and Stingers SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-43 14. Temporarily fasten gussets to stringers, as shown in Figure 40. The upper stringer template is disposable and may be drilled through when match drilling stringer Figure 40: Temporarily Fastening Gussets to Stringers Page | 7-44 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 15. Attach gussets to FS207 frame (see Figure 41), and then remove temporary fasteners and attach gussets to stringers. Do not fully tighten hardware yet. Figure 41: Attaching Gussets to Frame and Stringers (Right Side Shown) SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-45 16. Attach braces to gussets and boxing plate, as shown in Figure 42. If needed, trim excess material from bottom end of braces (see Figure 42). If needed, the flange angle on the gusset may be altered +/- 3°. Figure 42: Attaching Bracket Assembly Braces (Right Side Shown) 17. Fully tighten bracket assembly hardware. To attach the yaw servo to the rudder control cables: 1. Secure rudder in center of travel. 2. Make sure rudder control cables where bridle cable clamps will attach are clean and free of dirt and grease. Page | 7-46 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 3. Use bridle cable clamps for 5/32" control cables to loosely connect bridle cable ends to rudder control cables, as shown in Figure 43. Figure 43: Connecting Yaw Servo Bridle Cable to Rudder Cable SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-47 4. Position bridle cable clamps so that: • Bridle cable travels over roller, as shown in Figure 43 • Capstan is positioned as shown in Figure 43. • Clamps are located as shown in Figure 43. • Clamps are positioned to avoid contacting any structures, insulation, or interior materials during entire travel. 5. Mark locations for swage stops on bridle cable at outside edges of cable clamps. 6. Remove bridle cable clamps from bridle cable, and then remove capstan and cable guard from yaw servo (see Section 11.5 for instructions). 7. Slide a swage stop onto one end of bridle cable so it is aligned with mark on bridle cable. 8. Permanently attach swage stop to bridle cable, and then trim bridle cable end flush with outside edge of swage stop. 9. Repeat Steps 7 and 8 for opposite end of bridle cable. 10. Temporarily attach capstan and cable guard to yaw servo, as shown in Figure 36. Cotter pin not required at this time. Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 11. Rotate capstan to locate orientation mark as shown in Figure 43. Make sure bridle cable ends extend from capstan (see Figure 43). 12. Use bridle cable clamps to loosely connect bridle cable ends to rudder control cables, as shown in Figure 43. 13. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 14. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6: Cable Guard Adjustment), and then repeat Step 13. 15. Tension and temporarily secure bridle cable to 15–20 lbs. Make sure capstan orientation mark points forward. The tension on the bridle cable should never exceed the manufacturer's specified tension for the control cable. 16. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. Page | 7-48 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 17. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable, and then contact Dynon Technical Support for a resolution. Out-of-specification cable clamps can slip under load. 18. Permanently attach capstan and cable guard to yaw servo (see Section 11.5 for instructions). To check the yaw servo installation: 1. Release rudder. 2. Move rudder control through full range of motion per manufacturer's maintenance instructions, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures, insulation, or interior materials during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 3. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely matches Figure 43. • Capstan orientation mark is positioned as shown in Figure 43. • Bridle cable tension has not changed. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 7-49 7.6 Aircraft with De-icing Systems — Rerouting and Reconnecting Exhaust Tubing After completing the pitch/yaw servo installation, it may be necessary to reroute the exhaust tubing to avoid interference with the newly installed pitch/yaw servo installation. It may also be necessary to reconnect the tubing to the valve. To reroute and reconnect de-icing system exhaust tubing: 1. Make sure airplane master power is OFF. 2. Source appropriately specified (i.e., diameter, length, and material) tubing and connectors. 3. Reroute tubes as needed using standards and practices outlined in AC 43.13-1B, Chapter 9, Section 2 (see Figure 44 for an example). Figure 44: Example of De-icing System Exhaust Tubing Rerouted and Reconnected 4. Reconnect exhaust tubing, as shown in Figure 44. 5. When done, move all flight controls through full range of motion, making sure rerouted tubes do not interfere with any controls. 6. Perform functional test of de-icing system per aircraft maintenance manual to verify boots inflate properly, and that no leaks in tubing are present. Page | 7-50 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 8-1 8 Servo Electrical Connection Refer to the following documents at dynoncertified.com/docs for complete electrical connection instructions: • SkyView HDX System Installation Manual • SkyView HDX Wiring Diagram - Twin Engine Dynon provides the SV-NET-SERVO Network Autopilot Servo Cable Kit to aid in wiring the servos. Contact Dynon Sales for more information. Servo electrical harnesses must be routed through the airframe structure as outlined in AC 43.13-1B, Chapter 11, Section 3. Servo electrical harnesses must not chafe against airframe structure. after all electrical connection activities are complete, visually inspect all harness routing. Servo electrical harnesses cannot interfere with the airplane's flight controls. After all electrical connection activities are complete, confirm this by moving all controls through full range of motion per manufacturer's maintenance instructions. Terminate servo electrical harnesses with a D9 connector shell with female pins; terminate pigtails on servo electrical harnesses with mating D9 connectors. Power for all servos must be controlled by a switch prominently mounted on the instrument panel labeled AP Power. This provides the pilot the ability to quickly turn off power to the servos should it be needed. Servo power (AP Power) and the pitch and roll servo disconnect (AP DISC) circuits are required to be separate from the power and signal circuits provided over the SkyView Network. The servos should receive power from a common power source with circuit protection sized for the loads associated with all servos. Do not connect the yaw servo disconnect circuit to the pitch and roll servo disconnect (AP DISC) circuit. This will result in a yaw servo calibration test failure. The yaw servo disconnect circuit should only be connected to a Yaw Damper button or left unconnected if no Yaw Damper button is installed. After electrically connecting the Autopilot servos, perform the Servo Calibration Procedure (see Section 11.2: Calibration Procedure for instructions). Page | 8-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 8.1 Custom Wire Harness Preparation If your SkyView Autopilot installation requires customized wire harnesses, refer to Table 3 for wire/pin connection guidance. Dynon harness standard is to connect servo wires to a D9 male connector with threaded jack nuts. (See the SkyView HDX Wiring Diagram - Single Engine and SkyView HDX System Installation Manual documents at dynoncertified.com/docs for additional electrical installation information.) Table 3: Autopilot Servo Harness, Pin/Wire Connections D9 Harness Pin # D9 Harness Wire Function D9 Harness Wire Color Connection / Notes 1 SkyView Network Data 1A Green SkyView Network D9 Connector, Pin 1 2 Ground Black Common Airframe Ground 3 Servo Disconnect Yellow Autopilot Disconnect Button or Yaw Damper Button 4 SkyView Network Data 2B White w/ Blue SkyView Network D9 Connector, Pin 4 5 None No Wire No Connection 6 SkyView Network Data 1B Blue SkyView Network D9 Connector, Pin 6 7 Power Red Electrical Bus Use 10A Circuit Breaker / Fuse 8 SkyView Network Data 2A White w/ Green SkyView Network D9 Connector, Pin 8 9 None No Wire No Connection SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 9-1 9 Electric Trim Control Existing pitch trim motors certified for the airplane can be controlled through the SkyView HDX Autopilot system. Such trim motors must operate on 10–30 Volts with a maximum current draw of 5 Amps. This includes trim motors with or without a clutch. Instructions for connecting to a trim motor, configuring SkyView HDX for trim control, and functionally testing the feature are found in the SkyView HDX System Installation Manual document at dynoncertified.com/docs. Page | 9-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 This page intentionally left blank. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 10-1 10 Servo Troubleshooting This section provides troubleshooting information for autopilot servos. See the SkyView HDX General Maintenance Manual for information about troubleshooting the SkyView Autopilot system interface. 10.1 Servos Offline Messages Condition: One or more of the following messages appear on SkyView HDX display unit: 1. PITCH SERVO OFFLINE 2. ROLL SERVO OFFLINE 3. YAW SERVO OFFLINE If all three messages annunciate: 1. Verify master power is ON. 2. Verify autopilot circuit breaker and power switch are ON. 3. Verify all harness connectors for all servos are properly mated. 4. Verify electrical power to all servos. 5. Verify adequate ground quality for all servos. If condition persists, or if only one message annunciates: 1. Enter SETUP menu (hold Buttons #7 and #8) 2. Enter SYSTEM SETUP -> SKYVIEW NETWORK SETUP-> NETWORK STATUS 3. Locate the SV42 devices (servos) in list of network devices. If necessary, use knobs to scroll through entire list. If you do not see a servo entry in the list of network devices for each servo installed, press BACK button, and perform a SkyView Network Configuration. 4. If any servos are highlighted in RED: a) Verify autopilot circuit breaker and power switch are ON. b) Inspect/fix wiring to affected servo, or common wiring if multiple servos are offline. 5. If any servos are highlighted in YELLOW, a software upgrade did not complete properly. 6. If all above fails, contact Dynon Technical Support. Always have a properly rated mechanic or qualified facility remove unit. Page | 10-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 10.2 Servo Slip Messages Condition: One or more of the following messages appear and persist on SkyView HDX display unit: 1. PITCH SERVO SLIP 2. ROLL SERVO SLIP 3. YAW SERVO SLIP The momentary appearance of SERVO SLIP messages is expected due to certain weather conditions during autopilot operation. If a SERVO SLIP message persists, contact Dynon Technical Support for assistance. 10.3 Yaw Servo Calibration Failure Condition: Yaw servo calibration failed. Make sure the yaw servo disconnect circuit is not connected to the pitch and roll servo disconnect (AP DISC) circuits. 10.4 Abnormal Operation Condition: One or more autopilot axes fail to move as expected or operate in an unexpected manner. To test for bridle cable clamp slippage: 1. On ground, engage the autopilot into Level Mode. 2. From exterior of the airplane, grasp, and gently attempt to move the affected control surface (i.e., elevator, aileron, rudder). 3. Have an assistant observe the bridle cable clamps during Step #2. 4. If cable clamp slips, remove and install the clamp per guidance in Section 11.8, 11.9, or 11.10. To test for broken shear screw: 1. On ground, engage the autopilot into Level Mode. 2. From exterior of the airplane, grasp, and gently attempt to move the affected control surface (i.e., elevator, aileron, rudder). 3. If autopilot does not resist attempt to move control surface, contact Dynon Technical Support to request a 102991-000 Shear Screw Replacement Kit. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-1 11 Servo Maintenance This section provides maintenance information for autopilot servos and associated bracketry. See the SkyView HDX General Maintenance Manual for information about troubleshooting the Autopilot system interface. No special tools or facility are required to service an autopilot servo and bracketry. If replacing an autopilot servo, a calibrated tensiometer is required. 11.1 Service Every 12 months (1 calendar year), the autopilot servo components and wiring harnesses should be inspected to ensure continued integrity of the installation (see below). • Inspect for security of servo attachment, which includes visual inspection of brackets and other supporting structures that attach to airplane. • Inspect servo capstan for roughness, sharp edges, and presence of foreign material embedded in grooves. • Inspect bridle cables for wear and broken wires strands. • Inspect for signs of corrosion. • Inspect condition of wiring, shield terminations, routing, and attachment/clamping, along with any airplane penetration points. In the event of system failures, contact Dynon Technical Support. Always have a properly rated mechanic or qualified facility remove a failed component. 11.2 Calibration Procedure The SkyView Autopilot servo settings are available for download as a configuration file that is loaded into the SkyView HDX display. This file configures the autopilot servo performance settings to meet the applicable certification regulations. Servo calibration cannot be performed without the following: • An ADAHRS module (SV-ADAHRS-200) installed and configured in the SkyView network. • All servos installed and configured in the SkyView Network. • V-speeds correctly entered in SkyView HDX. (See the SkyView HDX System Installation Manual document for instructions.) To make a new servo appear on the SkyView HDX display, configure the SkyView Network (SYSTEM SETUP > NETWORK SETUP > CONFIGURE). (See the SkyView HDX System Installation Manual document for instructions.) To calibrate the servos, enter the Servo Calibration Wizard (SETUP MENU > HARDWARE CALIBRATION > AP SERVO CALIBRATION > CALIBRATION) and follow the onscreen instructions to calibrate the servo(s). Page | 11-2 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 SkyView checks the status of the AP DISC button. If SkyView detects that the button is pressed (the input is grounded) upon entering AP SERVO CALIBRATION, the AP DISC button is assumed to be stuck (or incorrectly installed), resulting in the following message being displayed, and the autopilot servo calibration is aborted: "The servo disconnect switch appears to be pressed and may be installed incorrectly. The servo disconnect switch should be a type Momentary, Push Button Normal Open (PBNO). Press cancel below to return to the servo calibration menu." If the servo calibration procedure is not successful, inspect the button and servo wiring. (See the 103261-000 SkyView HDX System Installation Manual document for instructions.) If button type and wiring is correct, call Dynon Technical Support. If the servo calibration procedure is successful, SkyView will automatically instruct you to run the servo test procedure. (See Section 11.3 for instructions.) 11.3 Test Procedure The servo test procedure requires a successful servo calibration. The servo test procedure verifies that each servo is configured properly by moving the control surfaces while the installer verifies the correct movement. You may run this procedure on its own at any time after a successful servo calibration. SkyView will not display AP status on the Top Bar until after this test procedure is successfully completed. To run this procedure on its own (after a successful servo calibration procedure), enter the Servo Test Wizard (SETUP MENU > HARDWARE CALIBRATION > AP SERVO CALIBRATION > TEST) and follow the onscreen instructions to test the servo(s). 11.4 Servo Operation Check Complete the following procedures to confirm the servos are operating correctly. To check autopilot disconnect functionality: 1. Make sure master power and autopilot servo power are ON. 2. Engage autopilot. 3. Complete the following: • Press AP button in Autopilot Control menu, and make sure autopilot disconnects. "AUTOPILOT DISCONECT" aural indication should be heard. • Turn autopilot servo power switch OFF, and make sure autopilot disconnects. "AUTOPILOT DISCONECT" aural indication should be heard. • If installed, press AP button on Autopilot Control Panel, and make sure autopilot disconnects. "AUTOPILOT DISCONECT" aural indication should be heard. • If installed, press panel-mounted AP DISC button, and make sure autopilot disconnects. "AUTOPILOT DISCONECT" aural indication should be heard. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-3 • If installed, press yoke-mounted autopilot disconnect button, and make sure autopilot disconnects. "AUTOPILOT DISCONECT" aural indication should be heard. To check the pitch and roll axes: 1. Make sure master power and autopilot servo power are ON. 2. Center, and lightly hold in place, flight control yoke. 3. Align HDG/TRK bug with current heading. 4. Select ALT and HDG. 5. Engage autopilot. 6. Set vertical speed to +1000. 7. Set altitude 1000 feet above current. Yoke should move in Nose Up direction. 8. Press and hold ALT button to return altitude bug to current. Yoke should move back to neutral position. 9. Change HDG/TRK bug to right of current heading. Yoke should move in direction of a right roll. 10. Change HDG/TRK bug to left of current heading. Yoke should move in direction of a left roll. To check the yaw axis: 1. Make sure master power and autopilot servo power are ON. 2. Move rudder pedals left and right to feel operation. 3. Center, and lightly hold in place, rudder pedals. 4. Engage autopilot. 5. Move rudder pedals to the Left. Rudder pedals should encounter some resistance to movement. The servo may slip. Resistance by the servo indicates the system is operating normally. 6. Move rudder pedals to the right. Rudder pedals should encounter some resistance to movement. The servo may slip. Resistance by the servo indicates the system is operating normally. 7. Disconnect autopilot. 8. Move rudder pedals left and right to feel operation. Resistance should not occur. Page | 11-4 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 11.5 Servo Capstan Removal and Attachment Dynon's autopilot servos are shipped with capstans installed. Servo installation procedures often require the temporary removal and re-attachment of capstans. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. Reference Figure 45: Exploded View of a Typical Servo Capstan Assembly when performing the following procedure. To remove and re-attach the capstan: 1. Remove cotter pin that secures castle nut to servo shaft. 2. Mark position of castle nut in relation to servo shaft, and then remove castle nut from servo shaft. 3. Remove wave washer from servo shaft. 4. Removed nylon washer from servo shaft. 5. Remove capstan from servo shaft. The shear screw does not need to be removed from the servo disc. The capstan has a hole that fits over the shear screw head. If the shear screw is loosened, it must be completely removed and replaced (see Section 11.7: Shear Screw Replacement). 6. Place capstan onto output shaft, aligning hole in capstan with shear screw head located in servo disc. 7. Replace nylon washer on servo shaft. 8. Replace wave washer on servo shaft. 9. Finger-tighten castle nut onto servo shaft, and then use a wrench to tighten until slot in castle nut lines up with hole for cotter pin in servo shaft. DO NOT overtighten the castle nut! Tightening the castle nut beyond 4 in-lbs may prevent the capstan from rotating freely in the event of shear screw failure. 10. Install new cotter pin to secure castle nut to servo shaft. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-5 11.6 Cable Guard Adjustment Dynon's autopilot servos are shipped with cable guards installed. The cable guard may need to be repositioned to avoid interference with the flight control cables or the bridle cables during servo installation procedures. The following procedure details the task of adjusting a cable guard. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. Reference Figure 45: Exploded View of a Typical Servo Capstan Assembly when performing the following procedure. To adjust the cable guard: 1. Remove capstan from servo shaft (see Section 11.5 for instructions). 2. Remove screws and star washers that secure capstan guard to servo. 3. Rotate capstan guard to correct position. 4. Secure capstan guard to servo with screws and star washers. 5. Re-attach capstan to servo shaft (see Section 11.5 for instructions). 11.7 Shear Screw Replacement Dynon autopilot servos come equipped with a capstan. The capstan connects to the servo via a frangible shear screw. The shear screw can be broken by the pilot to restore system movement should a servo become jammed. It is possible for turbulence loads acting on the airplane to cause a shear screw to fail, even though the servo never jammed. In the event of a shear screw failure, contact Dynon Technical Support to request a 102991-000 Shear Screw Replacement Kit. Shear screw replacement instructions are provided in the Dynon Servo Shear Screw Replacement Instructions document included in the Shear Screw Replacement Kit. Page | 11-6 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 11.8 Roll Servo Removal and Replacement This section provides instructions for removing and replacing a roll servo and connecting it back to the control system. The roll servo and bracketry are installed in the fuselage on the forward, left-hand side of the Rear Spar Carry Through near FS118.5 (see Figure 1 for exact location). To service the roll servo, installers need to access this area in accordance with the manufacturer's service manual. See Figure 2 for an example of a complete installation. Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Always disconnect aircraft battery before starting removal and installation activities. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. To remove the roll servo: 1. Disconnect D9 cable harness connector from servo. 2. Mark locations of bridle cable clamps on aileron control cable. Securing (e.g., taping) the bridle cable to capstan grooves prevents cable from unraveling when handling. 3. Loosen bridle cable clamps. 4. Unfasten hardware that secures roll servo bracket assembly to forward support bracket and rear spar bracket (see Figure 5). Retain hardware for installation. 5. Remove capstan (with bridle cable) from roll servo (see Section 11.5 for instructions). DO NOT loosen or remove the shear screw from the servo disc! 6. Remove safety wiring from roll servo bolts. 7. Unfasten hardware that secures roll servo to plate bracket (see Figure 4). Retain hardware for installation. 8. Remove roll servo from plate bracket. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-7 To replace the roll servo: 1. Secure ailerons in center of travel. 2. Secure roll servo to plate bracket (see Figure 4). 3. Safety wire roll servo bolts (see Figure 12). 4. Temporarily attach capstan to roll servo, as shown in Figure 14. Finger-tighten castle nut, and tighten, but do not torque, other hardware. Cotter pin and washers not needed yet. Position servo capstan so orientation mark on capstan faces away from servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 5. Place roll servo bracket assembly into aircraft, as shown in Figure 6 and Figure 7. Make sure aileron control cable is on top of assembly and to rear of servo capstan. Positioning of servo capstan in relation to aileron control cable in height and distance is critical for an airworthy installation. 6. Secure roll servo bracket assembly to forward support bracket and rear spar bracket, as shown in Figure 5. 7. Rotate capstan to locate swage engagement hole on opposite side of capstan from aileron control cable. Make sure bridle cable ends extend from capstan, as shown in Figure 15 or Figure 16. 8. Make sure aileron control cable in area where bridle cable clamps will attach is clean and free of dirt and grease. 9. Use bridle cable clamps to loosely connect bridle cable ends to aileron control cable at marks made during removal process. Make sure clamps contact swage stops at each end of bridle cable, as shown in Figure 15 or Figure 16. 10. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 11. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6 for instructions), and then repeat Step 10. 12. Tension and temporarily secure bridle cable to 15–20 lbs. Make sure swage engagement hole is on opposite side of capstan from aileron control cable. The tension on the bridle cable should never exceed the tension on control cable. 13. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. Page | 11-8 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 14. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable, and then contact Dynon Technical Support for a resolution. Out-of-specification clamps can slip under load. 15. Permanently attach capstan to roll servo (see Section 11.5 for instructions). 16. Connect D9 cable harness connector to servo. To check the roll servo installation: 1. Release ailerons. 2. Move aileron control through full range of motion per manufacturer's maintenance instructions, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 3. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely matches Figure 15 or Figure 16. • Capstan orientation mark is positioned as shown in Figure 15 or Figure 16. • Bridle cable tension has not changed. After all Autopilot servos have been serviced, perform servo calibration procedure (see Section 11.2: Servo Calibration Procedure for instructions). SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-9 11.9 Pitch Servo Removal and Replacement This section provides instructions for removing and replacing a pitch servo and connecting it back to the control system. The pitch servo and bracketry are in the fuselage, behind the frame at FS207 (see Figure 18 for exact location). To service the pitch servo, technicians need to remove the FS170 access panel located behind the baggage area in accordance with the manufacturer's service manual. See Figure 19 for an example of a complete installation. Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Always disconnect aircraft battery before starting removal and installation activities. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. To remove the pitch servo: 1. Disconnect D9 cable harness connector from servo. 2. Mark locations of bridle cable clamps on elevator control cable. Securing (e.g., taping) the bridle cable to capstan grooves prevents cable from unraveling when handling. 3. Loosen bridle cable clamps. 4. Remove capstan (with bridle cable) from pitch servo (see Section 11.5 for instructions). DO NOT loosen or remove the shear screw from the servo disc! 5. Remove safety wiring from pitch servo bolts. 6. Unfasten hardware that secures pitch servo to shelf bracket (see Figure 25). Retain hardware for installation. 7. Remove pitch servo from shelf bracket. Page | 11-10 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 To replace the pitch servo: 1. Secure elevator in center of travel. 2. Permanently secure pitch servo to bracket (see in Figure 25). 3. Safety wire roll servo bolts (see Figure 27 for example). 4. Temporarily attach capstan (with bridle cable) to pitch servo, as shown in Figure 28. Finger-tighten castle nut, and tighten, but do not torque, other hardware. Cotter pin and washers not needed yet. Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 5. Rotate capstan to locate swage engagement hole on opposite side of capstan from elevator control cable. Make sure bridle cable ends extend from capstan, as shown in Figure 29. 6. Make sure elevator control cable in area where bridle cable clamps will attach is clean and free of dirt and grease. 7. Use bridle cable clamps to loosely connect bridle cable ends to elevator control cable at marks made during removal process. Make sure clamps contact swage stops at each end of bridle cable, as shown in Figure 29. 8. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 9. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6 for instructions), and then repeat Step 8. 10. Tension and temporarily secure bridle cable to 15–20 lbs. Make sure swage engagement hole is on opposite side of capstan from elevator up cable. The tension on the bridle cable should never exceed the tension on control cable. 11. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. 12. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable, and then contact Dynon Technical Support for a resolution. Out-of-specification clamps can slip under load. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-11 13. Permanently attach capstan to pitch servo (see Section 11.5 for instructions). 14. Connect D9 cable harness connector to servo. To check the pitch servo installation: • Release elevator. 1. Move elevator control through full range of motion, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 2. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely match dimensions shown in Figure 29. • Swage engagement hole is on same side of capstan as control cable. • Bridle cable tension has not changed. After all Autopilot servos have been serviced, perform servo calibration procedure (see Section 11.2: Servo Calibration Procedure for instructions). Page | 11-12 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 11.10 Yaw Servo Removal and Replacement This section provides instructions for removing and replacing a yaw servo and connecting it back to the control system. The yaw servo and bracketry are in the fuselage, behind the frame at FS207 (see Figure 18 for exact location). To service the yaw servo, technicians need to remove the FS170 access panel located behind the baggage area in accordance with the manufacturer's service manual. See Figure 19 for an example of a complete installation. Make sure all flight control cables are rigged and tensioned in accordance with manufacturer’s instructions. Always disconnect aircraft battery before starting removal and installation activities. Unless otherwise specified, torque all fasteners per specifications in AC 43.13-1B, Table 7-1. Include specified friction drag value when torquing screws. To remove the yaw servo: 1. Disconnect D9 cable harness connector from servo. 2. Remove bracket assembly braces, as shown in Figure 42. 3. Remove boxing plate, as shown in Figure 33. 4. Mark locations of cable clamps on rudder control cables. Securing (e.g., taping) the bridle cable to capstan grooves prevents cable from unraveling when handling. 5. Loosen bridle cable clamps. 6. Remove capstan (with bridle cable) from yaw servo (see Section 11.5 for instructions). DO NOT remove the shear screw from the servo disc! 7. Remove safety wiring from yaw servo bolts. 8. Unfasten hardware that secures yaw servo to bridge bracket (see Figure 30). Retain hardware for installation. 9. Remove yaw servo from bridge bracket. SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 11-13 To replace the yaw servo: 1. Secure rudder in center of travel. 2. Permanently secure yaw servo to bridge bracket (see in Figure 30). 3. Safety wire yaw servo bolts (see Figure 32). 4. Temporarily attach capstan (with bridle cable) to yaw servo, as shown in Figure 36. Position servo capstan so orientation mark on capstan faces toward servo and is fully seated on servo disc. The capstan has a hole that fits over shear screw head. 5. Rotate capstan to locate orientation mark as shown in Figure 43. Make sure bridle cable ends extend from capstan (see Figure 43). 6. Make sure rudder control cables in area where bridle cable clamps will attach is clean and free of dirt and grease. 7. Use bridle cable clamps to loosely connect bridle cable ends to rudder control cables at marks made during removal process. Make sure bridle cable travels over roller and cable clamps contact swage stops at each end of bridle cable, as shown in Figure 43. 8. Make sure bridle cable does not contact cable guard. The bridle cable will prematurely wear if it contacts the cable guard throughout its travel. 9. If cable guard interferes with bridle cable, adjust cable guard position (see Section 11.6 for instructions), and then repeat Step 8. 10. Tension and temporarily secure bridle cable to 15–20 lbs. Make sure orientation mark points forward (see Figure 43). The tension on the bridle cable should never exceed the tension on control cable. 11. When satisfied with tension and capstan position, tighten all bridle cable clamp nuts to 35-40 in-lb. 12. Use a feeler gauge to measure gaps between bridle cable clamp halves (top and bottom). Make sure gaps meet the following criteria: • Gap measurements on both sides of clamp are not less than 0.003" and not more than 0.050". If clamp gap measurements do not meet criteria above, measure diameter of control cable, and then contact Dynon Technical Support for a resolution. Out-of-specification clamps can slip under load. 13. Permanently attach capstan and cable guard to yaw servo (see Section 11.5 for instructions). 14. Permanently secure boxing plate, as shown in Figure 33. Page | 11-14 SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 15. Permanently secure bracket assembly braces, as shown in Figure 30. 16. Connect D9 cable harness connector to servo. To check the yaw servo installation: 1. Release rudder. 2. Move rudder control through full range of motion per manufacturer's maintenance instructions, and verify the following: • Control is smooth throughout (i.e., no grinding, rubbing, or roughness). • Bridle cable clamps do not contact any structures during entire travel. • Capstan never rotates more than 150 degrees in either direction from neutral. 3. Cycle the control several times, return it to neutral, and verify the following: • Position of bridle cable clamps closely matches Figure 43. • Capstan orientation mark is positioned as shown in Figure 43. • Bridle cable tension has not changed. After all Autopilot servos have been serviced, perform servo calibration procedure (see Section 11.2: Servo Calibration Procedure for instructions). SkyView HDX - Autopilot Servo Installation & Maintenance Manual, Baron Models 58 & 58A, Rev E, 12/6/2023 Page | 12-1 12 Appendix 1: Servo Capstan Removal / Installation Figure Figure 45: Exploded View of a Typical Servo Capstan Assembly