ARMY TM 9-6115-670-14&P
4-107
4.41. MUFFLER (SICPS), MODEL MEP-903A.
This task covers:
a. Service
b. Replace
INITIAL SETUP
Tools
General Mechanic's Tool Kit
(Item 1, Appendix B)
Equipment Conditions
MASTER ON-OFF switch on APU control unit set to
OFF.
Engine stopped and allowed to cool completely.
Muffler wrap removed (para 4.39.).
Materials/Parts
Muffler (SICPS)
SERVICE
a. Remove three bolts, lock washers and flat washers (1, Figure 4-29) securing muffler (6) to muffler
bracket (4), remove exhaust loop pipe clamp (3) securing muffler to exhaust pipe (2) and remove
exhaust pipe insulating wrap around exhaust pipe (2). Remove muffler (6).
b. Remove hose clamp loops (8) and exhaust pipe insulating wrap from muffler exhaust pipe.
c. Clean muffler by mechanically removing carbon and fuel residues from input and exhaust pipe
openings in muffler.
WARNING
DC voltages are present at generator set components,
even with generator set shutdown. Avoid grounding
self when touching any electrical components. Failure
to observe this warning can result in personal injury or
DEATH by electrocution.
CAUTION
Exhaust pipe wrap contains fiberglass. Wear a long-
sleeved shirt, gloves, and mask, when removing the
muffler wrap.
WARNING
Do not use solvents to clean interior of muffler.
