Table 4-1. Unit PMCS-Continued
ITEM TO BE INSPECTED/Procedures
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
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).