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 43 of 552
TM 9-2350-311-34-2
a. Gunner’s Control Assembly. Manual traversing can only be done at the gunner’s position with TRAVERSE CONTROL
switch (3) on gunner’s selector switch box assembly (4) in MANUAL position. To traverse with hydraulic power, CAB
POWER switch (5) on the gunner’s selector switch box assembly must be in ON position. TRAVERSE CONTROL
switch may be in POWER position. Moving the gunner’s control handle (6) to one side or the other will cause the cab to
traverse in that direction under hydraulic power. To elevate hydraulically, ELEVATION CONTROL switch (7) must be in
GUNNER position. Moving the gunner’s control handle backwards toward the operator will then elevate the cannon.
Moving the gunner’s control handle forward will depress the cannon hydraulically. The gunner’s control assembly con-
sists of the gunner’s control handle, bracket (8), traversing cam, elevating rod, arm assembly spools, sleeves, center-
ing springs, and miscellaneous components enclosed in a housing assembly (9) and a control valve body group (10).
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