Rear Axle Housing; Removal; Installation; Wheel Motor - Komatsu 830E Shop Manual

REAR AXLE HOUSING

Removal

1. Remove the dump body as outlined in Section
"B".
NOTE: It is not necessary to remove the rear axle
assembly to service the anti-sway bar or pivot pin.
2. Loosen hose clamps and disconnect wheel
motor cooling flexible air duct from connection
on front center of housing.
3. Mark and disconnect lube and brake lines from
center case.
4. Mark electrical cables for identification and dis-
connect at wheel motors. Loosen cable grips
and pull cables free.
5. Remove rear tires as covered in this section.
6. Remove wheel motors as covered in this sec-
tion.
7. Block up truck frame and remove rear HYD-
RAIR® suspensions as outlined in Section "H".
8. Remove pivot pin as outlined previously in this
Section.
9. Remove anti-sway bar as outlined earlier in this
Section.
10. Move housing from under truck for repair or
replacement.

Installation

1. Position axle housing under frame.
2. Align pivot pin bores and install pivot pin.
3. Install anti-sway bar.
4. Install rear suspensions, as covered in Section
"H", Suspensions.
5. Install wheel motors.
6. Hook up lube lines on wheel motors.
7. Route electrical cables through cable grips on
right hand end of axle.
8. Connect electrical cables to motorized wheels
inside axle housing using identifications made
at removal.
9. Reconnect all brake lines, air and remaining
lube lines. Bleed brake and lube lines.
10. Reconnect wheel motor cooling air duct and
clamp securely.
11. Install wheels and tires.
G05003 04/03
REAR AXLE HOUSING

WHEEL MOTOR

Removal
1. Block front wheels to prevent movement. Turn
2. Raise the rear of truck, using jack adapter as
3. Remove the inner and outer wheels from wheel
4. Drain oil from wheel motor gear case.
NOTE: To aid in assembly tag all lines and electrical
connections prior to disassembly.
FIGURE 5-1. WHEEL MOTOR REMOVAL AND
Rear Axle Housing
key switch "Off". Wait for 90 seconds to bleed
hydraulic pressure from the steering system.
Turn the steering wheel to ensure no hydraulic
pressure remains. Open the drain valves on the
brake accumulators and bleed off hydraulic
pressure.
described in "Wheels and Tires", this Section,
until tires clear the ground. Use support stands
or cribbing to block under rear housing.
motor. Refer to "Wheels and Tires", this Sec-
tion, for wheel removal instructions.
INSTALLATION
(Shown with the body removed.)
G5-1