YUKON 208 PROPELLER INSTALLATION GUIDE | Wipaire

on the prop shaft. The PT6 on this installation utilizes the N flange as referenced in Hartzell Owners Manual 147, Figure 3-5 30 Apply Hartzell provided anti-seize compound PN A- 3338 to threaded studs on prop. This is typically provided with your new propeller. Align the Yukon prop in the correct orientation to the prop shaft dowell pins 31 Make note of washer, nut, and O ring reference as noted in Hartzell Owners Manual 147, Chapter 3, Figure and Table 3-1 as referenced below. Orientate washers accordingly 32 Torque per the installation instructions found in Hartzell Owners Manual 147, Section 3, Table 3-2 utilizing torque adapter PN AST- 2877-3. Torque per sequence found in Figure 3-3. 33 34 Safety wire or Safe-T-Cable to secure prop nuts after torque sequences. Do not allow pig tails or cable crimps to protrude outwards. This may result in undesirable contact with the beta bracket as it moves forward and aft. Note: Highly recommended to use Safe- T-Cable over safety wire Incorrect Correct Beta bracket movement of travel 35 SUGGESTED SAFETY CABLE TOOL WWW.DMCTOOLS.COM 36 Important-While you CAN use safety wire, it will be very difficult to access the nuts adequately and wire cleanly, let alone keep the wire away from beta ring. Extremel y tight area 37 SPINNER DOME INSTALLATION 38 Installation of spinner dome is performed per Hartzell Owners 143, Section 3, Par 5 as shown below 39 Spinner PN 107196P is used in all propeller configurations Support bulkhead PN C-5324 is used in all propeller configurations 40 Installation of the FWD spinner bulkhead PN C-5324 onto hub as shown below may require Hartzell Propeller Tape PN B- 6654-100 to be installed as shim material for shimming radially (side to side) There is an optional use of this same tape between bulkhead and spinner dome as noted in Par D and Figure 3-18 shown below. 41 You are trying to achieve a fitment using supplied spacers with spinner to backplate hole misalignment as shown in Figure 3-17 Below. REF NEXT SLIDE 42 Gently and evenly install the spinner. Once holes are aligned start with the center holes first in all four spinner quadrants. Once these center four screws are installed, work outward on the remaining 4 screws. Fiber Washer PN A-1020 Screw 10-32 PN B-3845-8 43 NOTE: There may be slight spinner to nose cowl clearance issues. You may have to adjust the RH nose cowl bracket at this location to achieve sufficient space needed for clearance. You may also have to elongate holes slightly and reposition bracket if more clearance is needed. In the photo below, note the tightest area is typically just above oil cooler opening on RH cowl half 44 SPINNER IPC REFERENCE HERE- PENDING FROM HARTZELL 45 BETA FEEDBACK ARM 46 Installation of the reversing linkage arm is accomplished using 3 different data sources. 1. Hartzell Owners Manual 147, Section 3 and Figure 3-7 for fitment of the block into the beta ring and ONTO the arm 2. Cessna Maintenance Manual 60-10-00 and 61-20-00 3. Pratt and Whitney Maintenance and Parts manual for applicable engine configuration (-114A or -140) Chapter 76 ENGINE CONTROLS 47 1. Hartzell Owners Manual 147, Section 3 and Figure 3-7 for fitment of the block into the beta ring and ONTO the arm 48 2. Cessna Maintenance Manual 61-10-00 and 61-20-00 49 COTTER PINS PN MS9245-23 3. Pratt and Whitney Parts Manual (PT6A-114A) 76-10-00 Figure 2 50 COTTER PINS PN MS9245-23 3. Pratt and Whitney Parts Manual (PT6A-140) 76-10-00 Figure 3 51 3. Pratt and Whitney Maintenance Manual (PT6A-114A) 76-10-00, Par 5 (B,2,f-h) 52 3. Pratt and Whitney Maintenance Manual (PT6A-140) 76-10-01, Par 6, (E, 1-11) 53 108053 DEICE (BRUSH BLOCK) INSTALLATION (IF APPLICABLE) 54 KIT 108053 AIRFRAME DEICE INSTALLATION 55 USING HARTZELL ICE PROTECTION SYSTEM MANUAL 180, KIT PN 108053 CAN BE FOUND UNDER INSTALLATION INSTRUCTIONS 12AE. NOTE THAT IT SENDS YOU TO STC HOLDER. REFERENCE WIPAIRE DRAWING XXX. 56 DEICE BRUSH BLOCK BRACKET INSTALLATION. REFERENCE WIPAIRE DRAWING XXX FOR INSTALLATION AND BUILD UP REFERENCE AIRFRAME POWER WIRES 108054 BRACKET MOV MODULE ASSEMBLY MODULAR BRUSH BLOCK ASSEMBLY 57 (PRATT AND WHITNEY PT6A-114A) ORIGINAL BRACKET PN 3E2237 WILL BE REMOVED AND NEW HARTZELL PN 108054 WILL BE INSTALLED IN ITS PLACE. REMOVE PN ST3066-12. TORQUE TO 145 TO 165 IN LBS AT REINSTALLATION. (REF SK208-174D) 58 (PRATT AND WHITNEY PT6A-140). REMOVE PN ST3032-12 NUTS AS SHOWN BELOW FROM PRATT AND WHITNEY IPC AND NEW HARTZELL PN 108054 WILL BE INSTALLED IN ITS PLACE. REMOVE PN ST3032-12. TORQUE TO 190- 215 IN LBS AT REINSTALLATION. (REF CAL-61-03) 59 ANTI ICE (TKS) INSTALLATION (IF APPLICABLE) 60 ORIGINAL BRACKET CESSNA PN 13125-02 WILL BE REMOVED AND NEW WIPAIRE BRACKET PN 1012332 WILL BE INSTALLED IN ITS PLACE. REMOVE PN ST3032-12 NUTS AS SHOWN (PT6A-140 ENGINE) BELOW FROM PRATT AND WHITNEY IPC. TORQUE TO 190-215 IN LBS AT REINSTALLATION. (REF CAL-61-03) 61 IT IS POSSIBLE THAT THE AIRFRAME HAS THE MCCAULEY 4HFR34C778 PROPELLER INSTALLED PER STC SA09850AC FROM ALAMO AEROSPACE/MCCAULEY. REMOVE PROPELLER PER ALAMO AEROSPACE ICA 55181-6. THE BRACKET PN B-40763 WOULD BE REMOVED AND WIPAIRE BRACKET 1012332 BE INSTALLED. TKS NOZZLE TO BE INSTALLED AS ORIGINAL. STC TKS NOZZLE MAY NOT BE COMPATIBLE WITH HARTZELL INSTALLATION. 62 ASSEMBLE TKS NOZZLE ONTO WIPAIRE BRACKET AS ORIGINAL USING CESSNA 208 IPC, 30-10-02 FIGURE 05 AND 05A AS PER APPLICABLE AIRFRAME SN. 63 WIPAIRE 1012332 BRACKET APPROXIMATE TKS NOZZLE ORIENTATION 64 ALIGN NOZZLE PER ORIGINAL AS REFERENCED IN CESSNA 208 MM 30-61-00 PARAGRAPHS 4 AND 5 VISUAL REPRESENTATION OF NOZZLE PLACEMENT WITHIN SLINGER RING 65 ENGINE RIGGING HIGHLIGHTS 66 THIS OPERATION WILL REQUIRE AN ADVANCED AMOUNT OF KNOWLEDGE FOR RIGGING THE PT6 TO FACTORY SPECIFICATIONS. THE YUKON PROPELLER INSTALLATION CHANGES A SINGLE RIG POINT, HOWEVER THAT CHANGE MAY AFFECT OTHER RIGGING POINTS. BE PREPARED AND FAMILIARIZE YOURSELF WITH RIGGING A PT6 (-114A AND -140 AS APPLICABLE) PRIOR TO THIS PORTION OF YOUR YUKON PROPELLER INSTALLATION. 67 WIPAIRE INSTALLATION DRAWING 1012329 Pay particular attention of notes shown on LH side of drawing for rigging points. 68 https://www.youtube.com/watch?v=H7c2NiFCNHo If the assumption is made that the engine is properly rigged prior to previous propeller removal, only one parameter is required to be changed on the PT6A-114A installation. This can be found in the video below, reference the 12:18 point of the video. NOTE: By adjusting the low idle NG per note 7, other parameters of the engine rigging may change. Be wary of completing a single adjustment and expecting all other rigging to hold properly. 69 https://www.youtube.com/watch?v=0pApxlmLiMw If the assumption is made that the engine is properly rigged prior to previous propeller removal, only one parameter is required to be changed on the PT6A-140 installation. This can be found in the -140 video below, reference the 14:35 point of the video. NOTE: By adjusting the low idle NG per note 8, other parameters of the engine rigging may change. Be wary of completing a single adjustment and expecting all other rigging to hold properly. 70 Reversing cam reference as noted below. 71 PERFORM FULL ENGINE RUNS WITH RIGGING CHECKS USING VIDEOS SHOWN AS A GUIDE. ENSURE THAT ALL STOCK PARAMATERS ARE BEING HIT INCLUDING THE INCREASED LOW IDEL NG PER WIPAIRE DRAWING 1012329 FOR YOUR INSTALLED ENGINE (-140 OR -114A) AND RIG AND ADJUST ACCORDINGLY. PERFORM INSPECTION AND ENSURE ALL SAFETY WIRE, COTTER PINS, ETC.. . ARE REINSTALLED UPON RIGGING COMPLETION 72 WEIGHT AND BALANCE NOTATIONS 73 NOTE: WEIGHTS AND ARMS APPLY TO BOTH THE 208B GRAND CARAVAN AND THE SHORTER 208. BOTH OF THE 208 CARAVAN MODELS HAVE A DATUM THAT IS 100” AHEAD OF THE FIREWALL AND RESULTING ARMS ARE NOT AFFECTED BY EITHER MODEL 74 75 END