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 248 of 343

TM 9-2350-358-BD

11-15. BYPASSING FAILED COMPONENTS - CONTINUED

Procedural Steps:

1.

Remove fuze manifold.

NOTE

The three power input lines to the fuze manifold from the filter manifold and mode selector valve

are not long enough to reach through the bulkhead.

Extension lines will have to be fabricated.

(Reference para 11-11 for hose fabrication.)

2.

Using a 5/8-inch straight adapter, connect mode selector servo valve hydraulic line to the elevation/traverse

hydraulic fuze line.

3.

Using a 5/8 to 1/2-inch adapter reducer and a 1/2-inch tee, connect the hydraulic line from the mode selector valve

to the control handles port to the hydraulic line from the gunner’s control handle hydraulic fuze.

4.

Install a 1/2-inch elbow into the tee in step 3 and connect the hydraulic line from the chief of section control handle

hydraulic fuze.

5.

Using a 5/8 to 1/2-inch adapter reducer and 1/2-inch tee, connect the hydraulic output line from the tee at the

hydraulic filter manifold to the hydraulic line from the loader assist hydraulic fuze.

6.

Using a 1/2 to 1/4-inch adapter reducer and a 1/4-inch tee connected to the tee in step 5, connect the hydraulic

line from the equilibration manifold.

11-30