TM 5-4310-370-14
TABLE 5-1. DIRECT AND GENERAL SUPPORT TROUBLESHOOTING (Cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1.
Check rotor assembly rings to see if they are spotted, rough or
eccentric.
If rotor assembly rings are spotted, rough or eccentric,
remove assembly and replace. Send assembly to next higher
level of maintenance. (See Appendix B)
2. LOSS OF OR NO MOTOR OUTPUT
WARNING
Disconnect compressor unit from main power supply before performing check(s)
or inspection, to avoid personal injury.
Step 1.
Check wire connections to stator to see if they are loose or
frayed.
If wire connections are loose or frayed, replace stator.
Send stator to next higher level of maintenance. (See
Step 2.
Check windings to see if they have dried out and are loose.
If windings are loose, replace stator and send suspect
stator to next higher level of maintenance. (See
3. MOTOR WILL NOT START UP
WARNING
Disconnect compressor unit from main power supply before performing check(s)
or inspection, to avoid personal injury.
Step 1.
Check starter switch to see if all wires are tight to terminal
blocks.
If there are wires which are not tight to terminal blocks,
tighten terminal screws.
Step 2.
Check to see that switch mechanism of starter switch assembly
works smoothly without sticking.
If starter switch mechanism sticks or jams, replace
starter switch assembly.
5-2
