TM 9-2330-384-14&P
Table 3-1. Operator Troubleshooting Procedures (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Look under semitrailer and
check air lines for kinks,
breaks, or loose connec-
tions. Listen for leaks along
air lines, at connections, and
at valves (see paragraph
If kinks, breaks, leaks,
or loose connections
are found, notify unit
maintenance.
Step 4.
Check air reservoir drain-
cocks (1) for obstructions
which may prevent them
from closing.
Remove obstructions
from
air
reservoir
draincocks. If damage
is found, notify unit
maintenance.
BRAKES WILL NOT RELEASE
6.
Step 1.
Check that parking/emergency brakes in tractor are not set (see TM 9-2320-273-10
or TM 9-2320-283-10).
Release parking/emergency brakes in tractor (see TM 9-2320-273-10 or
TM 9-2320-283-10).
Check that tractor has developed sufficient air pressure to release semitrailer park-
Step 2.
ing/emergency brakes. Air pressure should read at least 65 psi (448 kPa) (see
TM 9-2320-273-10 or TM 9-2320-283-10).
If air pressure gage in tractor shows insufficient air pressure, notify unit mainte-
nance.
NOTE
EMERGENCY air coupling is red.
Step 3.
Check that intervehicular EMERGENCY air coupling is properly connected (see para-
Connect air coupling properly. Connect tractor's EMERGENCY air coupling to
semitrailer's EMERGENCY air coupling (see paragraph 2-12).
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