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 146 of 552

5-4

TM 9-2350-311-34-2

5-1 MOUNT AND HOWITZER WITH TRUNNION BRACKET - CONTINUED

a. Removal - Continued

3 Remove seven cap screws (7) and seven Iockwashers (8) on upper gun rotor (9). Upper gun rotor will re-

main in place until cannon assembly (10) is elevated. Discard Iockwashers.

Failure to open bleeder valves could damage elevating piston rod.

4 Open front and rear bleeder valves on the equilibrated elevation mechanism assembly. This will prevent

bending of elevating piston rod (11).

5 Attach gun tube sling (12) and hoist (13) to muzzle brake (14).

Two personnel are required for removal of upper gun rotor. Upper gun rotor weighs approximately

75 pounds (34 kg) and may cause injury if dropped.

6 Raise cannon assembly (10) to maximum elevation and remove upper gun rotor (9) from inside cab.