Vizion Install Appendix C C175/C172

107), Servo Bolt Pattern Plate (P/N 1420-216), and Cessna 172 Lower Roll Bracket, (P/N 1450-108) 5.1. Attach the Cessna 172 Upper Roll Bracket (P/N 1450-107) to the upper spar flange using 3 ea. AN526C-832R8 screws. 5.1.1. Ensure that screws are tight, as this part will not be removed after this step! 5.2. Temporarily attach the Servo Bolt Pattern Plate (P/N 1420-216) to the upper bracket using 2 ea. AN3-3A as shown in figure 2-5. 5.3. Temporarily attach the Cessna 172 Lower Roll Bracket, (P/N 1450-108) to the Servo Bolt Pattern Plate (P/N 1420-216) using 2 ea. AN3-3A as shown in figure 2-5. Figure 2-5 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 10 6. Drill Cessna 172 Lower Roll Bracket, (P/N 1450-108) mounting holes. 6.1. Align the lower bracket mounting holes with row of rivets on the lower spar flange. 6.2. Match drill the outboard mounting hole using a #19 bit. 6.3. Secure the outboard hole with a cleco. 6.4. Match drill the remaining 3 holes on Cessna 172 Lower Roll Bracket, (P/N 1450-108), installing a cleco after each hole is drilled. NOTE: Do not install the bracket until step 13. 7. Install anchor nuts in Cessna 172 Lower Roll Bracket (P/N 1450-108) 7.1. Remove Servo Bolt Pattern Plate (P/N 1420-216), and Cessna 172 Lower Roll Bracket, (P/N 1450-108)) 7.2. Rivet 4 ea. MS21051-08 anchor nuts in place using 8 ea. MS20426AD3-4 rivets as shown in figure 2-6. Figure 2-6 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 11 8. Install and assemble the Cessna 172 Roll Inboard Pushrod (P/N 7200-088) and Cessna 172 Outboard Pushrod (P/N 7200-090). Figure 2-7 shows the assembled joint of these two parts. 8.1. Verify that Cessna 172 Roll Inboard Pushrod, Cessna 172 Outboard Pushrod, and AN3-7A bolts all mate properly prior to inserting parts through inspection hole. 8.2. Ensure that both threaded inserts are free of burs and rod end bearings can be properly inserted. 8.3. Slide the Cessna 172 Roll Inboard Pushrod (P/N 7200-088) through the inspection hole toward the cabin until the pushrod is entirely in the wing. 8.4. Make sure that the 10-32 threaded insert is toward the cabin and the cross drilled insert is outboard. 8.5. Place the Cessna 172 Outboard Pushrod (P/N 7200-090) through the inspection hole with the 10-32 threaded insert outboard. 8.6. Align the cross bolt holes and slide the inner and outer pushrods together. 8.7. Bolt the sections together using 2 AN3-7A bolts and MS20364-1032 nuts torqued to 20-25 in-lb. 8.8. Apply torque seal to this assembly at this point, as it is difficult to reach once attached to servo and bellcrank. 8.9. Remove the aileron bellcrank inspection panel and slide the assembled pushrod outward until it reaches the aileron bellcrank. Figure 2-7 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 12 9. Attach rod end bearing to bellcrank. 9.1. Remove the rear aileron bellcrank cable attachment bolt and replace with an AN3-14A, MM-3-300, 2 ea. AN960-10, and AN970-3 washer as shown in figure 2-8. 9.2. Torque bolt to 20-25 in-lb. 9.3. Verify that the feel of the controls in roll have not changed as this could indicate that a control cable has come off of the pulley. This bolt replacement should be able to be accomplished without re-tensioning the aileron control cables. Figure 2-8 10. Attach assembled pushrod to bellcrank rod end bearing. 10.1. Fully thread an AN345-10 nut on both MM-3-300 rod end bearings and start threading the pushrod assembly to the outer rod end bearing. 11. Assemble Cessna 172 Roll Servo Arm (P/N 7200-091) and 60 inch/lb PMA servo (P/N 8100-064). 11.1. Attach the Cessna 172 Roll Servo Arm (P/N 7200-091) to the 60 inch/lb PMA servo (P/N 8100-064 for 12 volt or P/N 8100-065 for 24 volt) using the provided 8-32 x 3/8” flat head screws. 11.2. Use blue threadlocker (Loctite 242 or equivalent) and torque the screws to 18-20 in-lb. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 13 12. Roll servo installation should be paused at this step, and continued once the wiring is installed per section 4. 13. Install Cessna 172 Lower Roll Bracket, (P/N 1450-108) and 60 inch/lb PMA servo (P/N 8100-064 for 12 volt or P/N 8100-065 for 24 volt). 13.1. Place the lower roll servo bracket in the wing and start 4 AN526C- 832R8 screws but leave the screws loose so that the lower bracket can still move. 13.2. Attach the electrical connector to the roll servo and secure it in place with the mounting screws. 13.3. Place the servo behind the mounting bracket with the arm oriented between the servo stops as shown in figure 2-9. 13.4. Start the 2 AN3-3A bolts with MS35333-39 lock washers and blue threadlocker (Loctite242 or equivalent) in the upper servo mounting holes then start the lower mounting bolts in the same manner. 13.5. Finally torque the 4 servo mounting bolts to 20-25 in-lb and tighten the lower bracket mounting screws to the spar flange. Figure 2-10 shows the 4 screws in the lower spar flange. Figure 2-9 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 14 Figure 2-10 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 15 14. Install servo side rod end bearing in push rod assembly. 14.1. Have an assistant hold the yoke in the full left position and rotate the servo arm against the outboard stop as shown in figure 2-11. 14.2. Thread the MM-3-300 rod end bearing into the servo end of the pushrod until the pushrod is the correct length to align with the drive point on the servo arm. The pushrod must be positioned aft of the rear aileron control cable at the servo and above the control cable at the aileron bellcrank. 14.3. Verify that the control cable is not twisted around the pushrod. Figure 2-11 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 16 15. Attach the pushrod assembly to the Cessna 172 Roll Servo Arm (P/N 7200-091). 15.1. Attach the pushrod with hardware as shown in figure 2-12 and torque to 20-25 in-lb. 15.2. Rotate the pushrod until the rod end bearings on each end are threaded in equally then tighten the jam nuts to 20-25 in-lb. 15.3. Move the yoke throughout the full range of travel and check for binding in the rod end bearings. If binding exists adjust the rod end bearings and jam nuts to eliminate it. 15.4. Ensure that aircraft stops are contacted prior to servo stops. Adjust length of pushrod as needed until servo stops are not contacted when controls are moved to both ends of travel. Figure 2-12 16. Verify that the servo and pushrod motion are unobstructed throughout the full control travel. Once wiring harness is installed, ensure that the wiring harness is properly secured to prevent interference. 17. Apply torque seal to all bolts after final torqueing is achieved. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 17 2.3. Cessna 175/172 All Models Vizion Roll IPC Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 18 3. Cessna 175/172 All Models Pitch Servo Installation 3.1. Pitch Servo Mounting Materials List Qty Description Part Number 1 60 inch/lb 12 Volt PMA Servo OR 60 inch/lb 24 Volt PMA Servo 8100-064 OR 8100-065 1 1.5” PMA Servo Arm 1420-209 1 C172 Early Pitch Clamp Link Sensor Half 1420-227 1 C172 Early Pitch Clamp Half 1420-228 1 Cessna 172 Early Aft Pitch Bracket 1450-121 9 MS20364-1032 1 AN970-3 1 AN345-10 8 AN3-5A 2 AN3-6A 1 AN3-10A 10 AN3-3A 3 AN960-10 4 MS35333-39 3 8-32 x 3/8 Flat Head Socket Cap Screw SS 2500-216 1 AN4H-3A 1 MM-3-300 Rod End Bearing 2510-051 16 Cherry BSPQ-42 Rivet 1 Sheathed Microfit Cable Assembly 1M 6000-064 1 C172 Early Pitch Pushrod Assembly 7100-099 1 C172 Early Fore Pitch Bracket Assembly 7100-100 1 C172 Early Pitch Servo Bracket Assembly 7100-101 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 19 3.2. Pitch Servo Mounting Instructions 1. Before beginning installation ensure elevator cable tension is within factory specification. 2. The pitch servo will be mounted in the empennage below the vertical stabilizer as shown in figure 3-1. Figure 3-1 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 20 3. Assemble the PMA Servo Bracket Assembly. 3.1. Assembly PMA Servo (P/N 8100-064 OR 8100-065) and 1.5” PMA Servo Arm (P/N 1420-209) using 3 8-32 x 3/8 Flat Head Socket Cap Screws (P/N 2500- 216) with blue threadlocker (Loctite 242 or equivalent) and torque the screws to 18-20 in-lb. 3.2. Assemble PMA Servo (P/N 8100-064 OR 8100-065) and C172 Early Pitch Servo Bracket Assembly (P/N 7100-101) using 4 AN3-3A bolts and 4 MS35333-39 lock washers with blue threadlocker (Loctite 242 or equivalent) as shown in figure 3-2. Torque AN3-3A bolts to 20-25 in-lb. Figure 3-2 3.3. Fasten Cessna 172 Early Aft Pitch Bracket (P/N 1450-121) and C172 Early Fore Pitch Bracket Assembly (P/N 7100-100) to the assembly using 6 AN3-3A bolts as shown in figure 3-3. Torque AN3-3A bolts to 20-25 in-lb. Figure 3-3 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 21 4. Prepare the aircraft for installation of the servo bracket assembly. 4.1. Remove the tail fairings on both the left and right side of the aircraft as shown in figure 3-4. Figure 3-4 4.2. Disconnect and remove the beacon resistor from the horizontal bulkhead. 5. Match drill bracket assembly to the horizontal bulkhead beneath the vertical stabilizer. 5.1. Place bracket and servo assembly under the vertical stabilizer in the forward hole in the horizontal bulkhead with the wider bracket forward as shown in figure 3-5. Figure 3-5 5.2. Position the bracket assembly so that it is equally spaced left to right from the edge of the horizontal bulkhead and forward and aft so that the servo is not in contact with the rim of the hole. See figures 3-6, 3-7, and 3-8. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 22 Figure 3-6 Figure 3-7 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 23 Figure 3-8 5.3. Match drill and Cleco clamp each of the 16 holes in the forward and aft bracket with the horizontal bulkhead with a #30 drill bit. 5.4. Remove Cleco clamps and remove bracket assembly. 5.5. Deburr drilled holes and remove shavings. 6. Place bracket assembly into position and rivet to horizontal bulkhead using 16 BSPQ-42 rivets. 7. Attach beacon resistor. 7.1. Fasten beacon resistor to bracket assembly with electrical leads facing upward using 2 AN3-6A bolts torqued to 20-25 in-lb. 7.2. Reattach beacon resistor electrical connections. 8. Prepare pushrod assembly for installation. 8.1. The C172 Early Pitch Pushrod Assembly (P/N 7100-099) is a factory built assembly and should not be disassembled. 8.2. Fully thread an AN315-4 nut on the MM-3-300 Rod End Bearing (P/N 2510- 051). 8.3. Thread the MM-3-300 Rod End Bearing (P/N 2510-051) half way into the C172 Early Pitch Pushrod Assembly (P/N 7100-099) as seen in figure 3-9. Figure 3-9 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 24 8.4. Assemble the C172 Early Pitch Pushrod Assembly (P/N 7100-099) to the C172 Early Pitch Clamp Link Sensor Half (P/N 1420-227) using an AN4H-3A bolt with blue threadlocker (Loctite 242 or equivalent) and torque the bolt to 40-60 in-lb. The assembly should be oriented as shown in figure 3-10. Figure 3-10 9. Attach the pushrod assembly to the servo assembly. 9.1. Fasten the MM-3-300 Rod End Bearing (P/N 2510-051) to the outer hole of the 1.5” PMA Servo Arm (P/N 1420-209) using 3 AN960-10, 1 AN970-3, 1 AN3-10A, and 1 MS20364-1032 in the configuration shown in figure 3-11. Figure 3-11 9.2. Torque the MS20364-1032 to 20-25 in-lb. 10. Install cable clamp to elevator cable 10.1. Hold the yoke in the full forward position and the servo arm 1/16 inch from the rear servo stop. See figure 3-12. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 25 Figure 3-12 10.2. Clamp the elevator cable between the C172 Early Pitch Clamp Link Sensor Half (P/N 1420-227) and C172 Early Pitch Clamp Half (P/N 1420-228) and fasten with 8 AN3-5A and 8 MS20364-1032 as in figure 3-13. Figure 3-13 10.3. Tighten the fasteners on each side of the cable evenly so the spacing between each clamp half is even. 10.4. Torque each fastener to 20-25 in-lb. 10.5. Move the yoke to the full aft position and ensure the servo arm is not in contact with the forward servo stop. See figure 3-14. If the servo arm is contacting the servo stop perform factory setup procedure for elevator stops. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 26 Figure 3-14 10.6. Lock wire the AN4H-4A bolt through the holes in both C172 Early Pitch Clamp Link Sensor Half (P/N 1420-227) and C172 Early Pitch Clamp Half (P/N 1420- 228). 11. Install M22529/2-1R grommet edging on the forward edge of the lightening hole shown in figure 3-15. This lightening hole is approximately 2” aft of the rear of the servo bracket assembly. Figure 3-15 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 27 12. Route the Microfit cable (P/N 6000-064) through the lightening holes in the bottom of the vertical stabilizer as shown in figure 3-15. Secure the Microfit cable in the locations shown in Figure 3-16, 3-17, 3-18 with 4 MS3367-1-0 cable ties. Figure 3-16 Figure 3-17 Figure 3-18 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 28 13. Ensure that the cable has adequate strain relief at both ends throughout the full range of travel. Maintain adequate clearance between the cable and all moving parts. 14. Secure right angle DB9 connector to pitch servo as seen in figure 3-17. 15. Insert Microfit cable into into mating connector on servo as seen in figure 3-17. 16. Secure any loose wires to prevent interference with any moving parts. 17. Apply torque seal to all bolts after final torqueing is achieved. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 29 3.3. Cessna 175/172 All Models Vizion Pitch IPC Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 30 4. Cessna 175/172 All Models Wiring Harness Installation 4.1. Wiring Harness Materials List Qty Description Part Number 1 Vizion Wiring Harness 25’ 8220-033 1 Vizion 2” Controller OR Vizion 3” Controller OR Vizion Flat Pack Controller 8000-174 or 8000-183 OR 8000-176 or 8000-184 OR 8000-175 or 8000-185 100 MS3367-1-0 Cable Tie 1 Connector Backshell 9 Pin 2100-010 2 Connector D-sub Female 9 Pin Crimp 2100-044 16 Female Socket Crimp Connector D-sub 2100-045 1 Right Angle D-sub 9 Pin Backshell Kit 8210-011 1 Vizion Emergency Level Button Kit 8100-113 1 Vizion Limitations Placard 8300-092 17 IN M22529/2-1R Grommet Edging 1 5A AP circuit breaker (not supplied) 1 Control Wheel Steering Switch (not supplied, but MUST be RED in color) 1 AP Master Switch (not supplied) 4 6-32 X 3/8” Instrument mounting screw (not supplied) N/A Various terminals and pins for connection of power and GPS N/A 1/8”-27 NPT male fittings and tees for connecting the A/P pitot and static to the aircraft systems Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 31 4.2. Wiring Harness / Controller Mounting Instructions 1. Begin by disconnecting the aircraft battery. 2. Select a mounting location for the autopilot controller. 2.1. Consider the overall mounting depth of the controller with pitot, static, and electrical connections and allow clearance where necessary, especially surrounding the moving yoke assembly. 2.2. Ensure that mounting location does not require autopilot servo lines to run near com antenna coax. 2.3. Ensure that there is sufficient space near the autopilot controller to install the Vizion Limitations Placard (Trutrak P/N 8300-092) 3. Open required inspection panels and access panels for harness routing. 3.1. Remove the right and left panel overlays and the left instrument panel. 3.2. Remove interior trim from covering the right forward door pillar to expose the areas shown in figures 4-1 and 4-2. Figure 4-1 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 32 Figure 4-2 3.3. Remove the seats, carpet, and lower left kick panel to expose the wiring underneath the floor as seen in figure 4-3 and 4-4. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 33 Figure 4-3 Figure 4-4 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 34 3.4. Remove baggage compartment bulkhead seen in figure 4-5. Figure 4-5 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 35 3.5. Open inspection covers as shown in figure 4-6. Figure 4-6 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 36 4. Begin routing wiring harness. 4.1. Route the pitch (white) and roll (black) servo harnesses down the left side of the center stack as shown in figures 4-7 and 4-8. The blue line in Figure 4-7 shows the main autopilot bundle. The red line in figure 4-8 shows the roll servo harness and the green line shows the pitch servo harness. Figure 4-7 Figure 4-8 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 37 5. Continue routing wiring harness. The green line in Figure 4-9 shows the path the harness should take. 5.1. Continue running the pitch servo wiring harness left over the yoke and down the left side of the as shown in figure 4-9. Figure 4-9 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 38 5.2. Continue routing pitch servo harness underneath the floor following the existing wire bundle as seen in figure 4-10. Figure 4-10 5.3. Continue routing under the the floor until the harness exits into the rear fuselage. Then route the harness to the left following the original wiring bundle as shown in figure 4-11. Figure 4-11 5.4. Continue routing the harness up the side of the fuselage on the outside of the brackets for the hat rack as shown in figure 4-12. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 39 Figure 4-12 5.5. Continue routing aft in the rear fuselage through the existing grommet in the middle former as shown in figure 4-13. Figure 4-13 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 40 5.6. Route the harness through the lower grommet it the rear bulkhead as shown in figure 4-14. Figure 4-14 5.7. Secure pitch servo harness with MS3367-1-0 Cable Ties every 6-12” ensuring that there is no interference with any moving parts. 6. Terminate the pitch servo wiring harness per the Vizion wiring diagram USING OPTION B in the Vizion PMA Installation Guide (TruTrak Doc. 166) using Right Angle D-sub 9 Pin Backshell Kit (P/N 8210-011). 7. Begin routing roll servo harness as shown in Figure 4-15. The red line shows the approximate path the harness should take. 7.1. Route the roll servo wiring harness under the avionics stack and over the right yoke to the right side of the panel. 7.2. Secure the harness to the existing wiring bundle using cable ties. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 41 Figure 4-15 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 42 9. Continue roll servo harness routing. The red line in Figures 4-16, 4-17, and 4-18 shows the path the harness should take. 9.1. Follow the existing wiring harness up the right front door post and through the grommets into the first inspection panel in the leading edge of the wing. Figure 4-16 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 43 Figure 4-17 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 44 Figure 4-3 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 45 11. Continue roll harness routing in right wing. 11.1. Continue following the existing wiring harness through the grommets in the leading edge ribs past the second inspection hole. The red line in Figure 4-19 shows the pathway the harness should take. Figure 4-4 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 46 12. Install grommet edging on the lightening hole outboard of inspection hole 3 as shown in figure 4-20. Figure 4-20 Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 47 14. Continue installation of grommet edging. 14.1. Install grommet edging on the outer lightening hole forward of inspection hole 4 as shown in figure 4-21. The wiring harness must run through this lightening hole to prevent interference with servo and control cable movement. Figure 4-21 15. Terminate the roll servo wiring harness per the Vizion wiring diagram in the Vizion PMA Installation Guide (TruTrak Doc. 166). 16. Reinstall cover plates on inspection holes 1, 2, and 3. Leave cover plate 4 open until the roll servo installation is complete. 17. Select appropriate mounting locations for the AP Master, AP Circuit Breaker, Emergency Level and control wheel steering switches. Connect these items per the Vizion wiring diagram in the Vizion PMA Installation Guide (TruTrak Doc. 166). 18. All items in step 18 are required to be installed. The AP Master Switch, AP Circuit Breaker, and Control Wheel Steering switches must be labeled. The Control Wheel Steering Switch must be red. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 48 19. Connect GPS inputs per the Vizion wiring diagram in Vizion PMA Installation Guide (TruTrak Doc. 166) 20. Reinstall interior trim. 21. Conduct pitot / static check of aircraft system before opening any pitot/ static connections! 22. Mount autopilot controller in panel using 4 6-32 X 3/8” screws. Connect wiring harness and connect pitot and static per Vizion PMA Installation Guide (TruTrak Doc. 166). 23. Install Vizion Limitations Placard (Trutrak P/N 8300-092) near the Vizion autopilot. A sample panel with potential placard location is shown below: 24. Reinstall the instrument panel and panel overlays. 25. If not already installed, install pitch and roll servos. 26. Reconnect battery. 27. Once autopilot settings are confirmed, perform autopilot system test per the Vizion PMA Installation Guide (TruTrak Doc. 166). Potential location of Limitations Placard Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 49 5. Cessna 175/172 All Models Autopilot Settings Once all wiring is complete, verified, and the GPS setup has been completed (Vizion PMA Installation Guide (TruTrak Doc. 166)), follow the steps below to verify proper autopilot settings. THIS STEP MUST BE COMPLETED PRIOR TO GROUND CHECK AND FLIGHT CHECK!!! 5.1. Lateral Autopilot Settings For Vizion software version PV.30 follow the steps below: 1) PRESS and HOLD KNOB 2) Apply power to autopilot and GPS 3) Release KNOB. 4) PRESS KNOB to advance to min backlight 5) PRESS KNOB to advance to SETUP ENABLE. 6) ROTATE KNOB to select a value of 10. 7) PRESS KNOB to exit. 8) PRESS and HOLD MODE button until LAT ACTIVITY is shown. 9) ROTATE KNOB to select a LAT ACTIVITY of 17 10)PRESS ALT button to advance to next setup screen. 11)ROTATE KNOB to select a BAUD that matches the baud rate of the GPS (this will be either 4800 or 9600, refer to Approved GPS List (Doc 186) for information about approved GPS units). 12)PRESS ALT button to advance to next setup screen. 13)ROTATE KNOB to select a BANK ANGLE of MED. 14)PRESS ALT button to advance to next setup screen. 15)ROTATE KNOB to select a MICROACTIVITY of 10. 16)PRESS ALT button to advance to next setup screen. 17)ROTATE KNOB to select a GPSS GAIN of 16. 18)PRESS ALT button to advance to next setup screen. 19)ROTATE KNOB to set ROLL REV to Y. 20)PRESS KNOB to exit lateral setup and return to the home screen. 21)PRESS ALT AND HOLD alt button until VRT AVTIVITY is shown. 22)WHILE CONTINUING TO HOLD ALT, PRESS MODE. 23)RELEASE MODE AND ALT. 24)PRESS MODE until MAC is displayed. 25)ROTATE KNOB to set MAC to 2. 26)PRESS KNOB to exit menu and return to home screen. 27)Do not remove power from autopilot. For Vizion software version PV.40 follow the steps below: 1) PRESS and HOLD KNOB 2) Apply power to autopilot and GPS 3) Release KNOB. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 50 4) PRESS ALT button to advance to min backlight 5) PRESS ALT button to advance to SETUP ENABLE. 6) ROTATE KNOB to select a value of 10. 7) PRESS ALT button to exit. 8) PRESS and HOLD MODE button until LAT ACTIVITY is shown. 9) ROTATE KNOB to select a LAT ACTIVITY of 17 10)PRESS ALT button to advance to next setup screen. 11)ROTATE KNOB to select a BAUD that matches the baud rate of the GPS (this will be either 4800 or 9600, refer to Approved GPS List (Doc 186) for information about approved GPS units). 12)PRESS ALT button to advance to next setup screen. 13)ROTATE KNOB to select a BANK ANGLE of MED. 14)PRESS ALT button to advance to next setup screen. 15)ROTATE KNOB to select a MICROACTIVITY of 10. 16)PRESS ALT button to advance to next setup screen. 17)ROTATE KNOB to select a GPSS GAIN of 16. 18)PRESS ALT button to advance to next setup screen. 19)ROTATE KNOB to set ROLL REV to Y. 20)PRESS KNOB to exit lateral setup and return to the home screen. 21)PRESS ALT AND HOLD alt button until VRT AVTIVITY is shown. 22)WHILE CONTINUING TO HOLD ALT, PRESS MODE. 23)RELEASE MODE AND ALT. 24)PRESS MODE until MAC is displayed. 25)ROTATE KNOB to set MAC to 2. 26)Repeatedly PRESS ALT button until EFIS TYPE is displayed 27)ROTATE KNOB to set EFIS TYPE to: 1 – if the autopilot is connected to an ASPEN, 2 – if the autopilot is connected to a G5, 0 – if the autopilot is connected to any other GPS 28)PRESS KNOB to exit menu and return to home screen. 29)Do not remove power from autopilot. 5.2. Vertical Autopilot Settings For Vizion software version PV.30 follow the steps below: 1) PRESS and HOLD ALT button until VRT ACTIVITY is shown. 2) ROTATE KNOB to select a VRT ACTIVITY of 21. 3) PRESS ALT button to advance to next setup screen. 4) ROTATE KNOB to select a MIN AIRSPD of (Refer to aircraft POH and set a value equal to 1.3 V S in knots). 5) PRESS ALT button to advance to next setup screen. 6) ROTATE KNOB to select a MAX AIRSPD of (Refer to aircraft POH and set a value equal to 0.9 VNE in knots). 7) PRESS ALT button to advance to next setup screen. 8) ROTATE KNOB to select a PITCH REV of Y. 9) PRESS ALT button to advance to next setup screen. 10)ROTATE KNOB to select a STATIC LAG of 1. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 51 11)PRESS ALT button to advance to next setup screen. 12)ROTATE KNOB to select a MICROACTIVITY of 5. 13)PRESS ALT button to advance to next setup screen. 14)ROTATE KNOB to select a HALF STEP of N. 15)PRESS KNOB exit vertical setup and return to the home screen. 16)Cycle power on the autopilot. For Vizion software version PV.40 follow the steps below: 1) PRESS and HOLD ALT button until VRT ACTIVITY is shown. 2) ROTATE KNOB to select a VRT ACTIVITY of 21. 3) PRESS ALT button to advance to next setup screen. 4) ROTATE KNOB to select a MIN AIRSPD of (Refer to aircraft POH and set a value equal to 1.3 V S in knots). 5) PRESS ALT button to advance to next setup screen. 6) ROTATE KNOB to select a MAX AIRSPD of (Refer to aircraft POH and set a value equal to 0.9 V NE in knots). 7) PRESS ALT button to advance to next setup screen. 8) ROTATE KNOB to select a PITCH REV of Y. 9) PRESS ALT button to advance to next setup screen. 10)ROTATE KNOB to select a STATIC LAG of 1. 11)PRESS ALT button to advance to next setup screen. 12)ROTATE KNOB to select a MICROACTIVITY of 5. 13)PRESS ALT button to advance to next setup screen. 14)ROTATE KNOB to select desired DEFAULT VS (this is the vertical speed setting that the autopilot will use as the value to determine whether or not to synchronize to current vertical speed or synchronize to zero vertical speed, as well as the default vertical speed for altitude pre-select). For example, if the DEFAULT VS is set to 300 fpm, if the aircraft is climbing at 200 fpm, the autopilot select zero VS upon engagement. If the aircraft is climbing at 400 fpm, the autopilot will select 400 fpm upon engagement. We suggest using 300-400 feet per minute. CAUTION! Do not select a DEFAULT VS that is too high, or autopilot performance may be adversely affected. 15)PRESS KNOB exit vertical setup and return to the home screen. 16)Cycle power on the autopilot. Rev: B Vizion Install Appendix C C175/C172 TruTrak Doc: 242 52 TruTrak Flight Systems, Inc.