TM-9-2350-311-10

TM 9-2350-311-10

1–14 EQUIPMENT OPERATION AND DESCRIPTION — CONTINUED

1–14.9 Elevating System

MAIN ACCUMULATOR AND POWER PACK ASSEMBLY. The main accumulator (1) and power pack assembly

(2) provide hydraulic power to cab components through a network of hydraulic lines and control valves.

SELECTOR VALVE ASSEMBLY AND SOLENOID. The selector valve assembly (3) and solenoid (4) direct

hydraulic flow from either the gunner’s control assembly (5) or assistant gunner’s control assembly (6) to the

equilibrated elevating cylinder (7).

GUNNER’S CONTROL ASSEMBLY. The gunner’s control assembly (5) receives hydraulic power from power

pack assembly (2) to elevate or depress the cannon and traverses cab left or right.

ASSISTANT GUNNER’S CONTROL ASSEMBLY. The assistant gunner’s control assembly (6) receives hydraulic

power from the power pack assembly (2) to elevate or depress cannon.

MANUAL ELEVATING HAND PUMP. The manual elevating hand pump (8) directs hydraulic flow to elevate and

depress cannon manually.

MANUAL ELEVATION ACCUMULATOR. The manual elevation accumulator (9) maintains hydraulic fluid in

manual elevating hand pump (8) under minimum pressure to permit manual control of cannon elevation and

depression.

EQUILIBRATED ELEVATING CYLINDER. The equilibrated elevating cylinder (7) elevates, depresses, and

balances cannon, as well as compensates for uneven distribution of weight of cannon tube. Other components of

equilibration system are the primary accumulator assembly (10), secondary accumulator assembly (11),

equilibration manifold assembly (12), and manual elevating hand pump (8).

GUNNER’S SELECTOR SWITCH BOX ASSEMBLY. The gunner’s selector switch box assembly (13)

ELEVATION CONTROL switch allows either the gunner or assistant gunner to elevate the cab while the CAB

POWER switch is to ON.

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