TM 55-2210-224-34
Table 3-1. INTERMEDIATE DIRECT SUPPORT AND INTERMEDIATE GENERAL SUPPORT
TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIRBRAKE SYSTEM
1.
AIR PRESSURE DOES NOT BUILD UP.
Step 1. Check for open main reservoir cutout cock.
Close cutout cock.
Step 2. Check for slipping or broken air compressor belts.
Tighten or replace belts
. Refer to TM 55-2210-224-12.
Step 3. Check for open main reservoir drain valve.
Close main reservoir drain valve.
Step 4. Check for open trainline air angle cock.
Close trainline air angle cock.
Step 5. Check for stuck open unloader valve.
Disassemble and clean unloader valve (para 4-8).
Step 6. Check for stuck open main air reservoir safety valve.
Replace safety valve (para 3-60).
Step 7. Check for stuck open air compressor governor.
Disassemble and clean governor (para 3-44).
Step 8. Check for stuck open high or low air pressure discharge and suction valves.
Rebuild or replace valves (para 4-8).
2. AIR PRESSURE BUILDS UP SLOWLY.
Step 1. Check for slipping air compressor belts.
Tighten or replace belts
. Refer to TM 55-2210-224-12.
Step 2. Check for loose fittings.
Locate and tighten loose fittings.
3-6
