SusiAir PILATUS PORTER PC6, Maintenance Program

Page: 94 / 248

Form ASI-PC6-Engine Installation
Reissued: 2
Revision: 1
Date: July 2020 Page 4 of 26
NO. DESCRIPTION TASK NO. MECH. ENG. RII
C.
Support Struts (Ref. Fig. 408)
1. Put the rear bulkhead over the engine.
2. Loosely install 10 bolts (five each side) to attach the upper and lower
half of the bulkhead together.
3. Put the support struts in position through the holes in the engine rear
bulkhead.
4. Install the bolt (1), washer (2) and nut (3).
5. Torque the nuts (3) to between 10,5 and 12,5 Nm (95 and 110 lb in.).
6. Safety the nuts with new cotter pins (4).
7. Make sure the bonded shim (18) is securely attached to the structure.
8. If the nuts (15) are self-locking nuts:
i. Install the bolt (19) washer (17) and nut (15). When you do this
measure the rundown torque of the nut (15).
ii. Torque the nuts (15) to between 51 and 56 Nm (450 and 500 lb in.)
plus the rundown torque.
9. If the nuts (15) are castellated nuts:
i. Install the bolt (19), washer (17) and nut (15).
ii. Torque the nuts (15) to between 51 and 56 Nm (450 and 500 lb in.).
iii. Safety the nuts (15) with new cotter pins (14).
10. Remove the lifting sling from the engine
N/A
D.
Connect the Engine Bulkheads (Ref. Fig. 407)
1. Install the bolts (6) and washers (7) to attach the upper half of the
engine rear bulkhead.
2. Tighten the bolts (4) and washers (3) that attach the support strut seal
plates (5) and seals (2).
N/A
E.
Case Drains and P3 Air Bleed (Ref. Fig. 402)
1. Connect the gas generator case rear drain hose (8) at the rear drain
valve.
2. Connect the gas generator case forward drain hose (1) at the engine
forward bulkhead.
3. Connect the gas generator case forward drain pipe (7).
4. Install the gasket (6) to the mounting boss on the top of the gas
generator case.
5. Put the adapter in position and install the four bolts (4).
6. Connect the P3 bleed air hose (2) to the adapter (5).
7. Install the P-clip (3) on the P3 bleed air hose (2) and engine forward
bulkhead.
8. Safety the hose to the lower LH side of the engine mounting ring with a
cable tie.
N/A
F.
Fuel Tubes (Ref. Fig. 404, Sheets 1 and 2)
1. Install a new O-ring (11) on the adapter (12).
2. Install the adapter to the starting flow control unit.
3. Set the adapter to the position noted at 4. E. (10).
4. Hold the adapter and then tighten the adapter locknut.
5. Connect the fuel dump hose (14) to the adapter (12).
6. Install and tighten the worm-drive clamp (13).
7. Connect fuel bleed return hose (10) to starting flow control unit.
8. Install a new O-ring (1) to the adapter (2).
9. Install the adapter (2) to the oil fuel heater.
10. (10) Connect the fuel supply hose (3) to the adapter (2).
11. Connect the drain tube (8) to the LP fuel pump.
12. Install a new O-ring (5) to the adapter (6).
13. Install the adapter (6) to the HP fuel pump.
14. Connect the drain tube (7) to the adapter (6).
15. Connect the inlet hose (4) to the LP fuel pump.
16. Connect outlet hose (9) to the LP fuel pump.
N/A