SusiAir PILATUS PORTER PC6, Maintenance Program

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Form ASI-PC6-Engine Installation
Reissued: 2
Revision: 1
Date: July 2020 Page 3 of 26
NO. DESCRIPTION TASK NO. MECH. ENG. RII
K.
Propeller Governor Maximum Stop Screw (Ref. Fig. 405)
1. Check the maximum stop screw (35) on the propeller governor. If the
screw is shorter than the stop screw on the removed engine, move the
screws as follows:
NOTE: The long stop screw is used to give the propeller speed of 2000
rpm used on B2H4 aircraft.
a. On the removed engine:
i. Loosen the locknut.
ii. Remove the stop screw, at the same time count the number of
turns necessary to remove the stop screw.
iii. Make a record of the number of turns.
b. Move the short stop screw from the replacement engine to the
removed engine.
c. Install the long stop screw on the propeller governor of the
replacement engine with the same number of turns as recorded at
(a) (iii).
d. Tighten the stop screw locknut.
L.
Inner Bulkheads (Ref. Fig. 415)
1. Put the forward bulkheads (1) and (13) in position.
2. Install the bolts (2), washers (3) and nuts (4).
3. Install the bolts (5), washers (10) and nuts (11).
4. Install the harness slot filler plate on to the engine forward bulkhead.
5. Use caulking putty (Material No. P08-001) to seal the gaps between the
harness and the bulkhead.
6. Put the rear bulkheads (6) and (12) in position.
7. Install the bolts (7), washers (8) and nuts (9).
N/A
Installation
A
Engine Mounting Ring (Ref. Fig. 408)
1. Position the mounting ring on the engine to the rear of the attachment
points.
NOTE: Make sure that the support strut attachment lugs on the
mounting ring are to the rear.
2. Install the engine lifting sling (Ref. P&WC EMM 72-00-00,
SERVICING).
CAUTION: THE BUSHES THAT ATTACH THE SHOCKMOUNT TO
THE MOUNTING FRAME BOLT MUST BE INSTALLED.
THE BUSH MUST HAVE THE THICK FLANGE TO THE
REAR. IF THE BUSH IS INCORRECTLY INSTALLED,
THE ENGINE WILL NOT ALIGN CORRECTLY.
3. Install the gaskets (7), shockmounts (10), washers (6) and bolts (5).
4. Torque the bolts (5) to between 31.0 and 34.0 Nm (275 and 300 lbf in.).
5. Safety the bolts in pairs with lockwire (Material No. P02-001).
6. Lubricate the shanks of the mounting ring attachment bolts (8).
7. Put the mounting ring in position.
8. Install the bolts (8), washers (9) and (12) and nuts (11).
9. Torque the nuts (11) to between 55.0 and 60.0 Nm (486 and 531 lb in.).
72-00-00
B.
Install the Engine (Ref. Fig. 408)
1. Lift the engine in position.
2. Install the bolts (16) and washers (13).
3. Torque the bolts (16) to between 46,0 and 51,0 Nm (407 and 450 lb
in.).
4. Safety the bolts (16) with locking wire (Material No. P02-001).