TM 9-2330-386-14&P
OPERATOR/CREW PREVENTIVE MAINTENANCE CNECKS AND SERVICES - Continued
B-
Before
Operation
D
-
During
Operation
A-
After
Operation
Interval
ITEM TO BE INSPECTED
-- -- --
PROCEDURE: Check for and have repaired,
E q u i p m e n t is not
Item
B D A
ready/available if:
no.
filled, or adjusted as needed.
-- -- --
Air Reservoirs - continued
9
Check both air reservoir drain cocks.
a.
Close drain cock if open.
Air reservoir(s)
b.
Inspect both air reservoirs for
l e a k i n g or damaged.
d a m a g e or evidence of leakage.
c.
O p e n both drain cocks and drain
Close drain cocks.
10
Brake System
Air leaks are
a. While a helper actuates service
found. Service
brakes, listen for air leaks at both
g l a d h a n d s , emergency relay valves, air
b r a k e s do not
operate.
reservoirs, and the multi-function valve.
Observe air chambers push rod movement.
Malfunction that
b. Be alert for unusual difficulty in
would affect safe
stopping that would indicate that the
operation is
semitrailer service brakes are
evident.
malfunctioning.
WARNING
A hot brake or drum can cause
s e r i o u s burns. Exercise extreme
caution before attempting to touch
b r a k e drum after use. Slowly move
h a n d toward drum. If drum is over-
heated, radiated heat will be felt
before actually touching drum.
B r a k e drum
c.
Cautiously feel brake drums for
abnormally hot.
abnormal heat or cold. An abnormally hot
d r u m indicates a possible dragging or
grabbing brake, or improperly adjusted,
dry, or defective wheel bearings. An
a b n o r m a l l y cool drum indicates improper
adjustment.
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