TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 614 of 987
TM 9-2320-285-24-1
2-51.
AIR BRAKE SYSTEM MAINTENANCE (CONT)
d.
Brake Air Chambers.
(1) Front Axle Brakes Air Chambers.
STEP
LOCATION
ITEM
ACTION
REMARKS
CLEANING (cont)
3
(cont)
WARNING
Compressed air must not exceed 30 psi.
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.
c.
All remaining
Clean
Use cleaning solvent P-D-
parts
680; dry with compressed
air
INSPECTION
4
a.
Ring clamp (4),
Inspect
Replace if cracked,
bent,
or
push rod (8),
distorted
and wedge
guide (9)
b.
Diaphragm (7)
Inspect
Replace if torn or
deteriorated
c.
Retainer (11)
Inspect
Replace if cracked,
bent,
or
and boot (12)
if boot (12) is damaged or
deteriorated (see step 5
below)
d.
All remaining
Inspect
Replace if cracked,
or if
parts
threads damaged
REPAIR
5
Non-
a.
Non-pressure
Clamp
In vise.
Use wooden blocks
pressure
housing (6)
against vice jaws to pro-
housing
tect housing.
Clamp so
(6)
that retainer (11) faces
up
b.
Four rivets
Remove
Use drill of diameter
(10)
smaller than rivets
2-591
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