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 - Page 137 of 1116

TM 9-2330-330-14&P

0020 00-1

BRAKE SYSTEM TROUBLESHOOTING

0020 00

THIS WP COVERS:

Brake System Troubleshooting

INITIAL SETUP:

Maintenance Level

Tools and Special Tools

Organizational

Tool kit, general mechanic’s (item 4, WP 0171 00)

References

Applicable prime mover TM

WP 0069 00

WP 0047 00

WP 0070 00

WP 0066 00

WP 0076 00

WP 0067 00

WP 0078 00

WP 0068 00

To troubleshoot the M969A3 brake system, perform the test/inspections and corrective actions provided

in Table 1.

Table 1. Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1.

BRAKES WILL NOT

RELEASE/BRAKES

DRAG (ONE OR MORE

BRAKE DRUMS ARE

RUNNING HOT)

1.

Check for leaking air brake

components.

NOTE

Wheel must be raised prior to

performing step 2.

2.

Spin wheels to see if

brakes are released.

3.

Cage each air brake

chamber to see which

brake(s) have not released

(refer to WP 0078 00).

Push in parking brake release

knob. If air leak is detected,

replace damaged brake system

component (refer to WP 0076

00). If no air leak is detected, go

to step 2.

If brakes have released, apply

and release service brakes to

verify brakes are working. If

brakes have not released, go to

step 3.

Repair/replace faulty brake

components per WP 0066

00/0067 00.