4-15. AUXILIARY POWER UNIT - Continued
4-15.9 Engine Flywheel and Ring Gear.
This task covers:
Shop Equipment, Automotive
APU Shutdown (see para. 2-12)
Maintenance and Repair,
Engine Dismounted from Base
(see para. 4-15.1)
Remove injector feed line and clamp
Remove muffler and air intake couplings
washers (11) from both left hand and right
hand air shrouds.
Remove left hand and right hand air
shrouds (10 and 13).
Remove six machine screws (1) and lift
front cowling (2) from engine.
Remove four machine screws (3) and
washers (4) and lift rope pulley (7) and
screen (8) from engine.
Loosen capscrew (6) and washer (5). Do
not remove capscrew. To prevent crank
turning, clamp drive end. Do not use
flywheel cooling fans or ring gear to jam
Thread two capscrews into rope pulley
mounting holes. Insert puller slotted yoke
between capscrews. Pull flywheel against
center retaining capscrew.
When flywheel is loose, and detach puller,
and remove capscrew (6) and washer (5).
Remove flywheel (9).