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 256 of 343

TM 9-2350-358-BD

12-5.

REPLENISHER ACCUMULATOR DAMAGE

General Information:

The replenisher accumulator allows for change in the quantity of oil required by the recoil cylinders during recoil, and also

for expansion and contraction due to temperature changes.

Damage to the replenisher accumulator will degrade the

system to non-mission capable.

The preferred repair procedure would be to replace the replenisher accumulator with a

new or used part from available source.

This is not always possible.

This BDR procedure is only for the repair of the

bladder.

The repair of the housing, hoses, lines and fittings are covered in Chapter 3 and Chapter 11.

Limitations:

Due to the oil and nitrogen mixture the patch may not last long.

Personnel/Time Required:

•

2 soldiers

•

2.3 hours

Materials/Tools:

• Elastomer repair kit (found in M2/3 generic BDR kit, Section III, Appendix C)

• Nitrogen charging kit

• Hydraulic fluid (item 36, Appendix C)

• Rubber patch (scavenge from available source)

• M3 oil pump

References:

•

TM 9-2350-314-20-2-1

•

TM 9-2350-314-34-2

Other Options:

Patch replenisher bladder with tire repair kit.

Procedural Steps;

1.

Remove and disassemble replenisher.

2.

Clean damaged area of bladder.

3.

Apply elastomer and rubber patch to bladder using elastomer kit instructions.

4.

Reassemble and install replenisher.

5

Fill and charge replenisher.

6

Record the BDAR action taken.

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

using standard maintenance procedures.

12-4