Pivot Pin; Pivot Pin Assembly; Rear Axle Housing Mounting Attachment - Komatsu 930E-2 Shop Manual

PIVOT PIN

Removal
1. Park truck on firm level surface and block front
and rear of all tires.
Truck body must be empty and down against
frame before attempting this procedure.
2. Release all brakes.
3. Charge rear suspensions with nitrogen until pis-
tons are fully extended.
4. Place blocks or stands under each frame member
beneath the hoist cylinders.
Blocks must be securely in place before lowering
the frame. Check blocks on wheels to make sure
they are in place.
5. Release nitrogen out of front suspensions.
6. Release nitrogen out of rear suspensions.
7. Attach a hoist to lift eye at top of the pivot eye to
control downward movement of front of axle
housing.
8. Disconnect pivot eye bearing lube line. Remove
ground wire between pivot eye and frame.
9. Remove capscrew (2, Figure 4-1) and lockwasher
(3). Remove capscrews (4). Remove lock plate
(5).
10. Install puller using tapped holes (12) in head of pin.
Remove pin (7).
NOTE: Placement of a pry bar or jack between mount-
ing structure and pivot eye may be necessary to push
pivot eye down and away from mount structure. Spac-
ers (8) and cover rings (9) will fall free.
G04014
REAR AXLE HOUSING ATTACHMENT
Rear Axle Housing Attachment
FIGURE 4-1. PIVOT PIN ASSEMBLY
1. Truck Frame
2. Capscrew
3. Lockwasher
4. 12 Pt. Capscrew
5. Lock Plate
6. Sleeve
7. Pivot Pin
8. Spacer
Installation
1. Raise pivot eye (15, Figure 4-1) into position.
2. Be certain spherical bearing inner race is aligned.
Install cover rings (9) and spacers (8). Install pin
(7).
3. Position lock plate (5) by lining up capscrews with
capscrew holes in pin. Install capscrews.
4. Rotate pin and lock plate to align capscrews (2)
with holes in frame mounting structure.
a. Install capscrews (2) and lockwashers (3).
b. Tighten capscrews (2) to 175 ft. lbs. (237 N.m)
torque.
c. Tighten capscrews (4) to 1715 ft. lbs. (2325
N.m) torque.
5. Install ground wire and lubrication line. Pressurize
lube line to assure bearing (13) receives grease.
9. Cover Ring
10. 12 Pt. Capscrew
11. Locknut
12. Puller Holes
13. Bearing
14. Bearing Retainer
15. Pivot Eye Structure
16. Bearing Carrier
17. Clamp
G4-1