Air Inlet Housing

TM 10-3930-242-34

Figure 3-2. Oil pump, disassembly and reassembly.

g. I n s t a l l a t i o n .

d. Cleaning and Inspection.

( 1 ) Refer to figure 3-3 and install the oil

(1) Clean the oil cooler metal parts using an

cooler.

a l k a l i n e cleaning compound such as P-C-436, If

( 2 ) Install the fuel filter, oil filter, and

the oil cooler core is aluminum, use dry cleaning

water pump (TM 10-3930-242-12),

s o l v e n t P-D-680, or equal.

( 2 ) Clean all lubrication oil passages with

3-4. Air Inlet Housing

c o m p r e s s e d air.

a. General. The air inlet housing is mounted

( 3 ) Inspect the housing for cracks, breaks,

o n the side of blower, It contains an air shut-

and other damage.

d o w n valve that shuts off air supply and stops

( 4 ) Inspect all mounting hardware for dam-

t h e engine whenever abnormal operating condi-

a g e . Replace damaged or defective parts.

t i o n s require an emergency shutdown,

e. Pressure Test.

b. Removal R e f e r t o f i g u r e 3 - 5 a n d r e m o v e

(1) Make a suitable plate and attach to

t h e air inlet housing,

f l a n g e d side of cooler core (use a gasket made

c. Disassembly. Refer to figure 3-6 and disas-

f r o m rubber to assure tight seal), Drill and tap

s e m b l e air inlet housing in numerical sequence,

t h e plate to permit an air hose fitting to be at-

n o t i n g the position of shutdown spring.

tached to inlet side of core.

d. Cleaning and Inspection,

(2) Apply approximately 75 psi air pressure

(1) Clean air inlet housing and hardware

a n d submerge the cooler core and plate assem-

u s i n g a cleaning solvent such as P-D-680, or

b l y in a container of water. Any leaks will be

equal.

i n d i c a t e d by air bubbles in the water. If leaks

( 2 ) Clean the housing gasket screen of dirt

a r e indicated, replace the core.

f. Reassembly. Refer to figure 3-4 and reas-

a n d foreign material, Use solvent P-D-680, or

s e m b l e oil cooler. Use new gaskets upon reas-

equal, and blow dry with low pressure compres-

sembly.

sed air.

3-2