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TM 10-3930-638-24&P
3-6. FUEL SYSTEM MAINTENANCE (cont)
a. Fuel Injection Lines and Fittings (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
WARNING
Wear safety glasses when drying parts with compressed air.
Failure to do so could cause serious injury to eyes and possible
blindness. If you hurt your eyes or if a foreign object is blown into
your eyes, seek medical attention immediately.
6
All tubes, lines and fittings Flush
Flush with clean diesel fuel to remove all
traces of cleaning solvent. Dry
thoroughly with compressed air
INSPECTION
7
Tube assemblies (3, 4, 8
Inspect
Replace if cracked, kinked, dented, split,
and 13)
or if inlet fittings damaged
8
All other parts
Inspect
Replace if cracked, damaged, or threads
worn
INSTALLATION/ REPLACEMENT
9
Fuel injection
a. Sealing nut (23) and
Install and
Tighten sealing nut (23) to 20 pounds
pump
tee (22)
tighten
foot torque
b. Leak-off tube (4)
Position
On tee (22)
c. Sleeve (21) and tube
Install and
nut (20)
tighten
d. Injection tube (8)
Position
On injection pump and fuel injector
10
Fuel injector
Inlet fitting on injection
Connect and
Tighten hand-tight only
tube (8)
tighten
11
Fuel injection
pump
CAUTION
Do not tighten connector bolts (15) unless copper washers (16)
are in place. If copper washers are not used, pump seizure could
result due to connector bolt going too deep into pump body.
a. Connector bolt (15)
Install and
Tighten to 35 pounds foot torque
and two new copper
tighten
washers (16)
b. Sealing nut (14) and
Install and
Tighten sealing nut (14) to 20 pounds
elbow (12)
tighten
foot torque
c. Tube clamps (18), nuts
Install
To secure tubes (8)
(19) and screws (17)
d. Fuel inlet line (13)
Position
On fuel filter and injection pump
e. Tube nut (11)
Install and
To secure line (13)
tighten
3-74
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