Wheel Motor Alignment - Komatsu 930E-2 Shop Manual

11. Disconnect wheel motor power cables (7) at wheel
motor terminals. Disconnect speed sensor cable
at connector in center of housing.
12. Tie up cables and hoses as necessary to prevent
damage during wheel motor removal.
The complete wheel motor assembly weighs ap-
proximately 35,050 lbs. (15,913 kg). Be certain lift-
ing device is capable of handling the load safely.
13. Attach lifting device to wheel motor assembly. DO
NOT allow lifting device to contact brake hous-
ing.
14. Remove capscrews (15) and hardened flatwash-
ers (16) securing wheel motor to rear housing.
15. Move wheel motor assembly out of axle housing,
using care to prevent damage to brake hoses if
not removed previously.
16. Refer to appropriate GE service information for
wheel motor repair instructions.
Cleaning and Inspection
1. Thoroughly clean the capscrew holes and mount-
ing faces of the rear housing and the wheel motor.
2. Re-tap holes if threads are damaged.
3. Check mounting faces of wheel motor and rear
housing for nicks, scratches or other damage.
4. Check components inside axle housing. Inspect
brake system relay valve (6, Figure 5-1) and
hoses for leaks. Inspect manifold (4) hose con-
nections and repair leaks or damaged hoses.
5. Inspect wheel motor power cables, terminals,
cable grips, and clamps. Replace any cables or
hardware that is damaged or worn.
All propulsion system power cables must be prop-
erly secured in their wood or other non-ferrous
cable cleats. If clamps are cracked or broken, re-
place them with new parts. Inspect cable insula-
tion and replace entire cable if insulation is
damaged.
G05015 9/99
Installation
1. Install two guide pins 180° apart in the rear hous-
ing.
The complete wheel motor assembly weighs ap-
proximately 35,050 lbs. (15,913 kg). Be certain lift-
ing device is capable of handling the load safely.
2. Lift wheel motor into position on the rear housing.
Refering to Figure 5-2, align wheel motor mount-
ing capscrew hole in mounting flange nearest the
brake hose hole with the top hole of the oval
access plate. Make sure all cables and lines are
clear before installation. If brake system hoses (2,
10, & 11, Figure 5-1) have not been removed,
guide hoses through spindle holes during instal-
lation.
3. Install lubricated capscrews and flat washers se-
curing wheel motor to rear axle housing. Snug up
all capscrews until wheel motor is seated against
axle housing flange at all points. Final tighten
(alternating capscrews 180° apart) to 1480 ft. lbs.
(2007 N.m) torque.
4. Connect power cables (7) to their appropriate
location on the wheel motor. Connect speed sen-
sor cable.
FIGURE 5-2. WHEEL MOTOR ALIGNMENT
Rear Axle Housing
(Left Side Shown)
G5-5