TM 5-4310-379-14
Table 4-1. Direct Support Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
ENGINE OVERHEATS.
Step 1. Oil cooler clogged.
Replace oil cooler (para. 4-17).
Step 2. Oil cooler by-pass valve defective.
Replace oil cooler by-pass valve (para. 4-18).
4.
LOW COMPRESSOR OUTPUT PRESSURE.
Step 1. Inspect air lines and fittings on compressor.
Tighten loose connections and replace damaged items.
Step 2. Check V-D pilot valve.
Replace a defective valve (para. 4-26).
Step 3. Check manifold group.
Replace a damaged manifold (para. 4-30).
5.
POWER TAKE-OFF WILL NOT ENGAGE.
Check power take-off.
Adjust or replace power take-off (para. 4-22).
4-3/(4-4 blank)
