Table 4-1. Unit PMCS-continued -706880143

TM 5-4210-233-14&P-1

Table 4-1. Unit PMCS-Continued

Item

Interval

No. W M

ITEM TO BE INSPECTED/Procedures

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

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

4-14