TM 9-2350-256-34-1
e. Main Winch Control Value. Remove and install
the main winch control valve as shown in figure 2-29.
f. Power Control Valve. Remove and install the
power control valve as shown in figure 2-29.
g. Boom Combination Control Valve. Remove and
install the boom combination control valve as shown
in figure 2-29.
h. Hoist Winch Control Valve. Prior to removal of
the hoist winch control valve, remove the shift con-
trol (TM 9-2350-256-20). Remove and install the
hoist winch control valve as shown in figure 2-29.
i. Boom Safety Control Valve. Remove and install
the boom safety control valve as shown in figure
2-29.
2-31. Mechanical Transmission Power Takeoff
Drive Shaft
a. Removal. Prior to removing the mechanical
transmission power takeoff (PTO) drive shaft, re-
move deck grilles 27, 28, and 29 (fig. 2-2) and sub-
floor plate 12 (fig. 2-3). Disconnect interfering lines
and cables as necessary for access and remove the
mechanical transmission PTO drive shaft as shown
in figure 2-30.
NOTE
IF NECESSARY TO TURN PROPELLER SHAFT
TO REACH SCREWS, TURN MASTER SWITCH
TO ON POSITION. HOLD FUEL SHUTOFF
SWITCH IN OFF POSITION AND TOUCH
STARTER SWITCH. WHEN SCREWS ARE IN
POSITION FOR REMOVAL, TURN MASTER
SWITCH TO OFF POSITION.
b. Installation. Install the mechanical transmis-
sion PTO drive shaft in reverse order of removal.
2-32. Mechanical Transmission and Main Hydraulic
Pump Assembly
a. Removal. Prior to removing the mechanical
transmission and main hydraulic pump assembly,
remove the following components from the vehicle
(TM 9-2350-256-20): cupola and cupola plate assem-
bly, oddment trays, boxes, racks or baskets, as re-
quired for clearance and to prevent damage, com-
mander’s seat, passenger seats, and subfloor plates
11, 12 (with rigger’s seat attached), 13, 14, 17, and 18
(fig. 2-3). Remove the mechanical transmission and
main hydraulic pump assembly as shown in figure
2-31.
Change 4
2-61
