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 353 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:
(1)
Check bearing sleeve inside spindle for signs of
damage. If bearing sleeve is damaged, replace bearing
sleeve (Volume 3, WP
0413).
(2)
Replace drive flange gasket with RTV sealant.
e.
On M939A2 series vehicles, replace filter in
wheel valves (Volume 3, WP
0486).
WARNING
Do not allow grease or oil to contact brake
linings. Linings can absorb grease and oil,
causing early glazing and very poor braking
action. Failure to comply may result in injury
or death to personnel.
f.
Check brake shoes for condition and brake shoe-
to-drum clearance (Volume 3, WP
0432). Replace brake
shoes if worn beyond chamfer on linings (Volume 3,
WP
0426).
g.
Inspect CV boots for rips, cracking, punctures,
and other damage that could cause a loss of lubrication
around CV joint. Replace CV boots if ripped, punctured,
or damaged (Volume 3, WP
0478).
20
Semiannual
Air Lines and
Brake Chambers
a.
Inspect front service brake air lines and fittings
for loose connections, cracks, splits, or damage that
could cause potential air leaks. Tighten loose air lines
and fittings connections, and replace any air line or fitting
that has cracks, splits, or damage that could cause
potential air leaks.
b.
Inspect front service brake chambers for
condition and security of mounting. Replace any service
brake chamber that is damaged, defective, or
inoperative (Volume 3, WP
0434).
NOTE
Inspection of CTIS air lines and fittings will be
accomplished over complete vehicle. Tight-
en, repair, and/or replace components of the
compressed air system as required. If main-
tenance is required at a higher level, records
should reflect closest point of reference to
ensure proper identification of components
requiring service.
c.
On M939A2 series vehicles, inspect CTIS air
lines and fittings for loose connections, cracks, splits, or
damage that could cause potential air leaks.
TM 9-2320-272-23-2
0207
0207-18
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