TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 366 of 1417
Table
1.
Field Preventive Maintenance Checks and Services - Continued.
ITEM
NO.
INTERVAL
ITEM TO BE
CHECKED OR
SERVICED
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE IF:
30
Semiannual
Fuel Lines and
Tank
NOTE
On duel tank fuel systems, inspect left side of
tank when performing other tasks conducted
in that area of the vehicle. Ensure any prob-
lem found while inspecting right and left side
component systems is noted in maintenance
forms.
a.
Inspect fuel tank(s) for dents, cracks, and broken
welds that could cause leaks.
b.
Visually inspect fuel sending unit(s) and wiring
for loose connections, presence, frays, splits, and
missing insulation (Volume 3, WP
0352). Repair or
replace wiring that is missing or shows signs of frayed,
split, or missing insulation. Tighten loose connections
(WP
0332).
c.
Visually inspect tube(s) and hose(s) at fuel
tank(s) for loose connections, cracks, and splits.
Replace fuel tank tube(s) and hose(s) that are cracked
or split (WP
0250). Tighten loose fuel tank tube(s) and
hose connections.
d.
Inspect fuel tank selector valve on dual tank
model vehicles for freedom of operation and security of
mounting and check flex lines for leaks (WP
0255).
e.
Check fuel tank selector valves for proper
operation (TM 9-2320-272-10).
TM 9-2320-272-23-2
0207
0207-31
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