TM 5-4310-371-14
TABLE 5-1. DIRECT AND GENERAL SUPPORT TROUBLESHOOTING (Cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Check to see if safety valve is malfunctioning.
If safety valve is malfunctioning constantly, remove and
replace.
11. MOTOR INCAPABLE OF TURNING COMPRESSOR PUMP
WARNING
Disconnect compressor unit from main power supply before performing check(s)
or inspection, to avoid personal injury.
WARNING
Disconnect compressor unit from main power supply before servicing, replacing
or repairing parts of equipment, to avoid personal injury.
WARNING
Release pressure from air receiver and compressor pump before inspection,
performing procedures or disassembly of equipment to avoid personal injury.
Step 1.
Check to see that compressor pump can be turned by hand.
If compressor pump cannot be turned by hand, it may be
due to back pressure leaking through check valve from
air receiver. Remove and replace check valve.
5-8
