TM 9-4120-385-14
Table 5-1. TROUBLESHOOTING FOR DIRECT SUPPORT MAINTENANCE Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1. Check that the LOW and HIGH PRESSURE cutoff switches RESETS are in.
Press the LOW and HIGH PRESSURE switches to RESET. If switches do not remain in, check and/
or replace switches. Refer to Paragraph 5-18.
Step 2. Test K6 time delay relay. Refer to paragraph 4-20 Test.
Replace if defective. Refer to Figure 4-25.
Step 3. Check that the compressor motor thermo cutoff switch is operational. Refer to paragraph 5-11.
Replace compressor if therrno cutoff is defective. Refer to Paragraph 5-11.
Step 4. Inspect and check compressor for burnout. Refer to Paragraph 5-11.
Replace burned out mmpressor. Refer to Paragraph 5-11.
2. COMPRESSOR SHORT CYCLES
Step 1. Check for obstructions in front of condenser screen.
Remove obstructions and/or roll up and secure canvas cover.
Step 2. Check if HIGH PRESSURE cutoff switch RESET is out.
Push HIGH PRESSURE switch to RESET.
Change 1