SusiAir PILATUS PORTER PC6, Программа технического обслуживания

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Form No. ASI/MD-65 Revision 3 – July 2020 Page 1 of 7
Maintenance Department
FUEL NOZZLE CHANGE WORK SHEET
PT6A-27
Instructions (Note Post SB 1372 Engines Sheet).
- Each Listed Inspection Item is to be performed in accordance with the P & W
Maintenance Manual 3013242 Chapter 73-10-05 Latest Revision and any other
applicable publications
REMOVED FROM
AIRCRAFT
: PK-
A/C TTIS
:
ENGINE SN : ENGINE TSN :
JOB NO. : DATE PERFORMED :
NO. DESCRIPTION MECH. ENG.
A
Procedure Before Removal
1
To ease accessibility to the transfer tubes and manifold adapters adjacent to the
spark igniters, disconnect the ignition leads (ref EMM 74-20-00/74-20-01). Release
the ignition lead loop clamps from the support brackets at the center fire seal lower
attachment brackets and move the leads clear. Install blanking caps on the spark
igniters and lead connectors.
2
Disconnect both lines from the fuel inlet adapter or flow divider and install blanking
caps.
B Removal of Fuel Manifold Adapters
Note: The following procedure itemizes a removal sequence commencing with the No 8 fuel
manifold inlet adapter which is best achieved by consideration of the Nos. 7, 8 and 9
adapters as a group. The procedural sequence may be modified by the operator as
convenient for adapters at other locations.
1
Using a suitable dye maker (PWC05-027) or (PWC05-046), number the position of
each manifold adapter to identify its original position. (Refer to Figure 201) and to
aid detecting hot section damage
2
Remove bolts securing transfer tube locking plate (6, Fig 202) and inlet manifold
adapter (item 2) to gas generator case. Remove locking plate (item 6).
3
Remove bolts securing locking plates (item 6) to the primary and secondary
manifold adapters (item 5) adjacent to the inlet manifold adapter (item 2). Remove
locking plates (item 6).
4
Hold all the three adapters, then move the interconnecting fuel transfer tubes (item
1) into adapter bores (item 5). Use the puller (PWC54246) or pusher (PWC32366)
to move the fuel transfer tubes in a clockwise direction, away from the inlet manifold
adapter bores.
5
Remove the inlet manifold adapter (item 2) (with flow divider and dump valve (item
14) installed). Use the pusher (PWC32366) or puller (PWC54246) to remove the
fuel transfer tubes (item 1) from the adjacent adapters (item 5). Remove and discard
preformed packings (item 13) from the transfer tubes.
6 Remove the gasket (item 4) from the sheath (item 3) on the inlet manifold adapter
(item 2).
7
Remove the remaining manifold adapters (5) progressively from the gas generator
case by removing bolts and locking plates (6). As each adapter is removed,
withdraw interconnecting fuel transfer tubes (1). Remove and discard preformed
packing’s (13). Remove metal gaskets (4) from sheaths (3) on the adapters.
CAUTION : DO NOT PRY THE SHEATHS OFF WITH A SCREWDRIVER.