TM-9-2330-330-14-P

SEMITRAILER, FUEL TANKER: 5000-GALLON, FUEL-DISPENSING, AUTOMOTIVE, M969A3

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

NOVEMBER 2005
TM-9-2330-330-14-P

  TM-9-2330-330-14-P - Page 138 of 1116

TM 9-2330-330-14&P
0020 00-2
BRAKE SYSTEM TROUBLESHOOTING—Continued
0020 00
Table 1. Troubleshooting Procedures—Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
NO BRAKES/BRAKES
ARE WEAK/
APPLICATION OR
RELEASE IS SLOW
3.
ABS WARNING LIGHT
COMES ON AND STAYS
ON AT OPERATING
SPEEDS (ABOVE 4 MPH
[6 KM/H])
4.
ABS WARNING LIGHT
DOES NOT COME ON
1.
Observe brakedrums/dust
shields for signs of oil or
grease contamination.
2.
Apply prime mover service
brakes and listen for air
leaks in lines and hoses.
3.
Apply prime mover service
brakes and observe slack
adjustors for correct
movement.
Turn prime mover (refer to
applicable prime mover TM)
ignition switch ON. Turn off
ignition switch after less than 5
seconds, and turn switch on
again. The ABS warning
indicator light will come on and
then off. The ABS blink code will
then be displayed three times.
Turn prime mover (refer to
applicable prime mover TM)
ignition switch ON. Turn off
ignition switch after less than 5
seconds, and turn switch on
again. ABS indicator light still
does not come on.
If any oil or grease is present on
brake components, remove
brakedrums (refer to WP 0068
00) and replace contaminated/
out-of-limits brake components
per WP 0066 00/0067 00. If no
oil or grease is present, go to
step 2.
If air leaks are present,
repair/replace components per
applicable WP. If no air leaks are
present, go to step 3.
If slack adjustors show excess
movements or damage, adjust
per WP 0069 00. Verify problem
is solved.
Record ABS blink code and refer
to ABS diagnostics (refer to WP
0070 00).
Check intervehicular connections
for corrosion or damage. Verify
problem is solved. If light still
does not come on, replace 24–
12 V converter box (refer to WP
0047 00). Verify problem is
solved.
END OF TASK


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