Komatsu 830E-AC Shop Manual page 482

8. Remove cap screws (1, Figure 3-2) securing
retainer plate (2) to spindle structure and sus-
pension. Loosen cap screws in torque incre-
ments of 678 N·m (500 ft lbs). Remove retainer
plate.
9. Carefully remove 13 of the steering arm cap
screws (5) as follows:
a. Identify cap screws designated with an "X"
on the spindle pusher fabrication drawing
shown in Section "M", Options and Special
Tools.
b. Remove the cap screws identified in step a,
loosening them in small increments in a cir-
cular pattern.
DO NOT remove the cap screws in one step with
an air wrench. Revolve around the circular pat-
tern at least 3 times, gradually loosening the cap
screws during each revolution.
FIGURE 3-2. WHEEL HUB & SPINDLE REMOVAL
1. Cap Screws
2. Retainer Plate
3. Spindle
10. Run the proper size tap into the threaded holes
to ensure good, quality threads.
11. Install spindle pusher tool and remove spindle
as described below.
G3-4
4. Spindle Steering Arm
5. Retaining Cap Screws
Front Wheel Hub and Spindle
Spindle Pusher Tool Usage
Heavy structures and high forces are involved in
this procedure. Use caution at all times when
applying force to these parts. Sudden release of
the spindle could cause components to move
forcefully and unexpectedly.
Refer to Section "M", Options & Special Tools for
dimensions for fabricating the spindle pusher tool
and the cap screws and washers required. Multiple
flatwashers may be required under the cap screws to
be effective.
Note: Hardened flat washers must be used under the
pusher cap screws to prevent galling. Lubricate cap
screw threads and washers with a lubricant such as
chassis lube.
1. Install pusher tool as shown in Figure 3-3. using
the cap screws (1) and washers (2) specified
below:
Cap Screw P/N KC7095 . . . . . . . . . . . . . 1.25 x 8 in.
Min. thread engagement . . . . . . . . . . . . . 1.62 in.
Washer P/N WA0366 . . . . . . . . . . . . . . . . 1.25 in.
Note: Verify minimum thread engagement on pusher
cap screws when inserted.
FIGURE 3-3. PUSHER TOOL INSTALLATION
1. Cap Screw
2. Washer
3. Pusher Tool
4. Steering Arm
5. Spindle
6. Suspension Piston
G03029