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 holes in fuse panel and secure fuse holder with screws.
(5) Remove six screws (5, figure 7-35) nuts
(6) and washers (7) securing motor to mounting bracket.
(2) Reconnect leads (disconnected during
Remove four bolts, lockwashers and two bearing
disassembly) to screw-type fuse terminals.
brackets securing axle to frame. Lift front end of truck
from axle and draw axle, adapter and travel motor from
(3) Reinstall cover.
under truck.
6-92.
PUMP MOTOR AND MASTER SWITCH
RELAYS.
(6) Remove nine screws (9, 10, figure 7-37),
lockwashers (11) and two nuts (8) attaching adapter to
a. Removal.
axle and take motor and adapter, as a unit, from axle.
(1) Remove cover from control panel
compartment (para 6-28).
(7) Remove six screws (3, figure 7-35) and
lockwashers (4) attaching adapter to motor and draw
(2) Remove four cap screws and lockwashers
motor (2) from adapter (8).
which secure base of each relay (1 and 2, figure 7-3) to
mounting panel; then, withdraw relay for access to
b.
Installation.
terminals.
(1) Place gasket between travel motor and
adapter, align holes and secure motor to adapter with
(3)
Disconnect and tag all leads removed
screws and lockwashers.
from relay.
(2) Place gasket (12, figure 7-37) between
(4) Withdraw relay from compartment.
drive axle and adapter, align holes and gears and
b.
Installation.
secure with screws, nut and lockwashers.
(1) Connect all leads to relay terminals.
(3) Position drive unit on a wheeled dolly and
(2) Align mounting holes in relay base with
roll unit under raised front end of truck. Lower front end
hones in mounting panel and secure relay in place with
of truck until axle aligns with bearing bracket halves on
screws, lockwashers and flat washers.
6-93.
STEERING RELAY (IS).
frame and travel motor mounting flange holes align with
holes in mounting brackets. Secure axle with bearing
a. Removal.
brackets, screws and lockwashers and travel motor with
(1) Remove cover from control panel
screws, nuts and washers.
compartment (para 6-28).
(4)
Secure hydraulic tee fitting to adapter.
(2) Remove three screws which secure base
of steering relay (15, figure 7-3) to mounting panel.
(5) Attach tagged electrical leads to travel
Withdraw relay slightly from panel for accesses to
motor terminals. Secure protective cover to underside
terminals.
of truck.
(3)
Disconnect and tag all Ieads from steering
(6) Lubricate drive axle and adapter.
relay.
Connect rod and cable at brake on rear of travel motor.
Install thermal relay on travel motor. Attach horn to
(4) Withdraw
steering
relay
from
adapter. Replace floor plate.
compartment.
b. Installation.
(7)
Install mast assembly on truck.
(1) Connect all leads to relay.
(8) Bleed hydraulic brake system through
(2) Align holes in base of relay with tapped
each wheel cylinder (para 6-36b.).
holes in mounting panel and secure relay to panel with
6-91.
FUSE HOLDER.
screws.
a. Removal.
(1) Remove cover from control panel
(3) Reinstall
cover
on
control
panel
compartment (para 6-28).
compartment.
6-94.
SHORTING
CONTACTOR,
FORWARD,
(2) Disconnect and tag all electrical lead
REVERSE, AND FIELD WEAKENING RELAYS
wires from fuse holders (7, 8, figure 7-3).
a. Removal.
(3) Remove two screws which secure each;
(1) Remove cover from control panel
fuseholder to fuse panel and withdraw fuse holder.
compartment (para 6-28).
b. Installation.
(1) Align mounting holes in fuse holder with
6-28
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