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).
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