TM-9-2320-387-24-1
TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1
DECEMBER 1997
CHANGE 1
TM-9-2320-387-24-1 - Page 638 of 1205
TM 9-2320-387-24- 1
3-36. FUEL INJECTION PUMP RETURN HOSE CHECK VALVE MAINTENANCE
This task covers:
a. Removal
c. Installation
b. Cleaning and Inspection
INITIAL SETUP:
Tools
General
mechanic’s
tool kit:
automotive
(Appendix
B, Item 1)
Manual References
TM 9-2320-387-24P
Material/Parts
O-ring (Appendix
G, Item 256)
General Safety Instructions
l
Do not perform
this procedure
near tire, flames,
or sparks.
l
Compressed
air used for cleaning
purposes
will
not exceed 30 psi (207 kPa).
Maintenance Level
Unit
Equipment Condition
Air horn removed
(para. 3-14)
WARNING
Diesel fuel is highly flammable.
Do not perform
this procedure
near
fire, flames, or sparks.
Severe injury or death may result.
1
a. Removal
1
CAUTION
Cover or plug all hoses and connections
immediately
after
disconnection
to prevent
contamination.
Remove all plugs prior to
connection.
1.
Remove clamp (2) and hose (1) from injection
pump check valve (3).
2.
Remove check valve (3) and O-ring (4) from injection
pump (5). Discard
O-ring (4).
b. Cleaning and Inspection
WARNING
Compressed
air used for cleaning
purposes
will not exceed 30 psi
(207 kPa). Use only with effective
chip guarding
and personal
protective
equipment
(goggles/shield,
gloves, etc.).
Examine
lower end of check valve (31, where ball seats, for evidence
of debris. If debris is present,
blow
compressed
air through
check valve. Replace check valve (3) if debris remains,
or if check valve (3) fails
to function
properly.
[c.l
1.
Install
O-ring (4) and check valve (3) on injection
pump (5).
2.
Connect hose (1) to check valve (3) with clamp (2).
3-70
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