TM 9-6115-664-13&P
4-47. VALVE CLEARANCE ADJUSTMENT
This task covers adjustment of the engine valves/rockers
INITIAL SETUP
Tools:
Equipment Condition:
Shop Equipment, Automotive Maintenance
APU Shut Down and Cold
and Repair (Item 1, App. B)
NATO Plug Disconnected
A.
ADJUSTMENT.
NOTE
Discard and replace all lockwashers
and locknuts when removed.
1.
Open top front cover on APU enclosure by turning
latches.
2.
Disconnect engine exhaust bellows (1, Figure 4-37)
from rear of valve access door (2) by removing
screw
(3),
lockwasher
(4),
and
washer
(5).
Disconnect air hose (6) only if replacement is
required.
3.
Open valve access door (2) by turning door latches.
4.
Place rags below rocker cover to capture fluids.
Wipe spills with a clean rag.
NOTE
When removing rocker cover (7), tilt
back towards you to prevent capture
oil
from
spilling
inside
APU
enclosure.
5.
Remove rocker cover (7) by removing screws (8).
Dislodge washers (9) from cover by tapping lightly
with tip of screwdriver. Discard washers and gasket
(10).
Figure 4-37. Valve Clearance Adjustment
(Sheet 1 of 2)
4-112
