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 396 of 552

TM 9-2350-311-34-2

9-1 TRAVERSING MECHANISM ASSEMBLY

This task covers:

a. Removal

b. Disassembly

c. Inspection

d. Assembly

e. Installation

Tools

Artillery and turret mechanic’s tool kit

(SC 5180-95-CL-A12)

Artillery field maintenance tool kit

(SC 4933-95-CL-A06)

Drain pan (item 12, Appx F)

Sling, multiple leg (item 20, Appx F)

Materials/Parts

Gasket (item 133, Appx E)

Lockwashers (4) (item 96, Appx E)

Sealing compound (item 29, Appx B)

Self-locking bolts (2) (item 93.1, Appx E)

Webbing strap (item 34, Appx B)

Personnel Required

2

Equipment Condition

Turret lock in LOCKED position (TM 9-2350-311-10)

Vehicle MASTER switch to OFF (TM 9-2350-311-10)

CAB POWER switch to OFF (TM 9-2350-31 1-10)

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

Electrical contact assembly removed

(TM 9-2350-311-20-2) M109A2/M109A3

Traversing mechanism cover plate removed

(TM 9-2350-311-20-2)

Lines and fittings from traversing mechanism discon-

nected (TM 9-2350-311-20-2)

Oil pump and lines removed (para 9-5)

Clutch assembly removed (para 9-3) or gearshaft

assembly removed (para 9-4)

a. Removal

1

Remove four cap screws (1) four lockwashers (2) and hydraulic motor (3) from adapter (4) on traversing

mechanism upper housing (5). Discard lockwashers.

2

Remove woodruff key (6) from hydraulic motor (3) shaft.

3

Place drain pan below drain plug (7) at bottom center of traversing mechanism lower housing (8) and drain

7 pints (3.31 l) of lubricating oil. Replace drain plug.

4

Remove screw (9) from multiple leg sling (10). Separate halves of the multiple leg sling and attach to trav-

ersing mechanism upper housing (5). Replace screw.

9-2 Change 2