TM9-4310-396-13
OPERATOR TROUBLESHOOTING TABLE 3-1 - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. COMPRESSOR WILL NOT BUILD AIR PRESSURE.
Step 1. Check compressed air disconnect lines, hoses, and tank drain valve.
Insure there are no holes or excessive leaks causing pressure drop.
Step 2. Check to see if the pilot valve is preventing the compressor from loading.
Slightly tap on side or pull ring up (1, Figure 3-1). If pull ring (1) is stuck in manual locking
position (2), twist and release.
Figure 3-1. Pilot Valve.
Step 3. If subject to freezing temperatures, check if pilot valve is frozen due to internal moisture
condensate.
If frozen, notify Unit maintenance.
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