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TM 5-4210-233-14&P-1
Table 4-1. Unit PMCS-Continued
Item
Interval
No.
W
M
S
A
B
ITEM TO BE INSPECTED/Procedures
6
BRAKE SYSTEM
Slack Adjuster
*
Inspect for visible damage, cracks, missing clevis pins, cotter keys.
Lubricate as required. Replace if necessary (see para 4-146).
Brake Chamber, Rear
*
Check chamber attaching hardware is in place/tight. Check for visible
damage. Check linkage to slack adjuster is tight. Check that clamp rings are
in place/tight. Check that stud and nut used for servicing are in storage
position on each chamber.
Service Brake, Front
*
Visually inspect for loose or missing attaching hardware, damage, loose
linkage, torn, cracked or chafed hoses.
Air Lines and Piping
*
Check for worn hoses, connectors. Listen for air leaks with main engine off.
With service brakes en!aaged and main engine off, leakage must not exceed
2 psi/minute (5.8 kg/cm min.). Replace/repair as required (see para 4-147).
In-Line Single Valves, Double Check Valves, Quick Release Valve
*
Visually inspect for cracks, looseness, damage. Replace as equired. Check
lines for abrasion, cracks, visible damage. Replace as required (see para
4-148, 4-149 and 4-150).
Brake Pedal Valve
*
Inspect visually for damage, loose attaching hardware, cracks, damaged
lines.
*
With main engine off and adequate pressure in main reservoir, depress
service brake pedal. Listen for sound of service brakes engaging.
Replace/tighten as required (see para 4-151).
Safety Valve, Pressure Protection Valve
*
Check that valve is in place and free of cracks, damage or corrosion. Check
attaching hardware and hose connections for looseness. Replace/tighten as
required (see para 4-152 and 4-153).
4-14
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