TM-9-2350-358-BD

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE

MARCH 1994

TM-9-2350-358-BD - Page 294 of 343

TM 9-2350-358-BD

14-8.

MCS AIR DUCT HOSES AND AIR PIPE PERFORATED - CONTINUED

Procedural Steps:

1.

Locate tear or perforation from which air is leaking.

2.

Remove any rough edges or lagged points which might puncture tape, especially on air pipe.

3.

Clean area around tear or puncture so tape will properly adhere to surface and prevent air leakage.

4.

Apply duct tape to torn or perforated air duct, covering an area large enough to allow tape to remain attached

when air flow in duct is maximum.

5.

Record BDAR action taken.

When mission is complete, as soon as practical, repair the equipment/system using

standard maintenance procedures.

14-9.

MCS COMPRESSOR/MOTOR V-BELT DAMAGED

General Information:

The compressor is driven by a small electric motor.

The power is transferred from the motor to the compressor via a 29 x

0.531 V-belt.

Because the compressor presents a constant load to the motor, it is very difficult to repair a damaged belt

well enough to function adequately.

Therefore, the BDAR fix is limited to replacing the belt.

Limitations:

None

Personnel/Time Required:

•

1 soldier

•

1.0 hour

Materials/Tools:

•

V-Belt, (found in M2/3 generic BDR kit, Section III, Appendix C)

•

V-Belt tool (found in M2/3 generic BDR kit, Section III, Appendix C)

References:

TM 9-2350-314-20-2-2

Procedural Steps:

1.

Loosen 6 mounting screws on compressor motor so that motor can be moved as required to remove damaged

belt.

14-3