TM 5-3805-262-20
3-19. AIR BRAKE SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. AIR PRESSURE BUILDS UP SLOWLY (Cont).
Step 3.
Inspect air compressor lines (page 7-102).
a .
If air leakage is seen, replace leaking hoses or fittings (page
7-106) .
b .
If air leakage is not seen, go to step 4 below.
Step 4. Check air compressor governor adjustment (page 7-100).
a. If governor doesn’t cut out at 105-115 psi or cut in at 90-95
p s i , r e p l a c e i t ( p a g e 7 - 9 8 ) .
b. If governor adjustment is okay, go to step 5 below.
Step 5. Test air compressor governor (page 7-101) .
a. If governor does not test okay, replace (page 7-98).
b. If governor tests okay, go to step 6 below.
Step 6.
Remove air compressor (steps (a) through (k), page 7-88).
Remove two capscrews and lock washers, then remove inlet port and
i n l e t s c r e e n .
Check inlet screen for clogged condition.
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