TM-9-2350-311-34-2

CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-2 - Page 410 of 552

TM 9-2350-311-34-2

9-4 GEARSHAFT ASSEMBLY

This task covers:

a. Disassembly

b. Inspection

c. Assembly

INITIAL SETUP

Applicable Confirmation

M109A4/M109A5 howitzers

Tools

Artillery and turret mechanic’s tool kit

(SC 5180-95-CL-A12)

Artillery field maintenance tool kit

(SC 4933-95-CL-A06)

Torque adapter (item 1, Appx F)

Utility pail (item 11, Appx F)

Materials/Parts

Gasket (item 129, Appx E)

Gasket (item 130, Appx E)

Gasket (item 131, Appx E)

Gasket (item 164, Appx E)

Key washers (2) (item 26, Appx E)

Lubricating oil (item 24, Appx B)

Lubricating oil (item 25, Appx B)

Packing assemblies (3) (item 165, Appx E)

Preformed packings (2) (item 65, Appx E)

Retaining ring (item 21, Appx E)

Seal (item 166, Appx E)

Sealing compound (item 29, Appx B)

Sealing compound (item 31, Appx B)

Self-locking screws (6) (item 23, Appx E)

References

TM 9-214

Equipment Condition

Discharge hydraulic system (TM 9-2350-311-20-2)

No-back bearing removed (para 9-2)

a. Disassembly

1

2

3

4

5

6

Remove four machine screws (1), access cover (2), and gasket (3). Discard gasket.

Note and record dimension “E” on side of mechanical housing (4).

NOTE

Have utility pail available to drain oil from mechanical housing.

Remove four cap screws (5) and access cover (6).

Remove and discard gasket (7).

Bend locking tabs on key washer (8) to disengage key washer from round nut (9).

Remove round nut (9) and key washer (8) from gearshaft (10). Discard key washer.

9-16