Table 3-1. INTERMEDIATE DIRECT SUPPORT AND INTERMEDIATE GENERAL SUPPORT
TEST OR INSPECTION
26. THERE IS A STEADY BLOW OF AIR AT APPLICATION VALVE EXHAUST WITH BRAKES APPLIED OR
Check for blow of air stopping while brakes are applying.
Repair or replace application valve supply seat (para 4-13).
27. THERE IS A STEADY BLOW OF AIR AT APPLICATION VALVE EXHAUST.
Check for air blowing only when brakes are applied.
Repair or replace application valve seat or repair application piston O-ring (top or middle O-ring) (para
28. BRAKES FAIL TO RELEASE.
Check for no release of brakes after emergency application.
Adjust safety valve setting to proper pressure.
AIR COMPRESSOR GOVERNOR
29. AIR COMPRESSOR GOVERNOR NOT LOADING AND UNLOADING.
With locomotive running, observe air pressure gages
. Bleed air slowly from system to see if governor controls
air compressor unloading and loading.
Remove air compressor governor and test (para 3-44)
. Repair or replace defective governor.
30. BATTERIES FAIL TO CHARGE.
Step 1. Check for low electrolyte level in batteries.
Fill batteries to proper level and test (TM 55-2210-224-12).
Step 2. Check for corroded and/or loose connections on batteries.
Clean and/or tighten connections.