Spindle Pusher Tool Usage - Komatsu 830E Shop Manual

DO NOT remove the capscrews 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.
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.

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 capscrews and washers required. Multiple
flatwashers may be required under the capscrews to
be effective.
Note: Hardened flat washers must be used under the
pusher capscrews to prevent galling. Lubricate
capscrew threads and washers with a lubricant such
as chassis lube.
1. Install pusher tool as shown in Figure 3-3. using
the capscrews (1) and washers (2) specified
below for the appropriate model truck:
830E (AFE 32)
Capscrew P/N KC7091. . . . . . . . . . . . . . 1.125 x 7 in.
Min. Thread engagement: . . . . . . . . . . . . . 1.50 in.
Washer P/N WA0365 . . . . . . . . . . . . . . . . . . 1.125 in.
830E (AFE 50)
Capscrew 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
capscrews when inserted.
G3-2
FIGURE 3-3. PUSHER TOOL INSTALLATION
1. Capscrew
2. Washer
3. Pusher Tool
2. After the tool has been installed, progressively
increase the torque on the capscrews in a circu-
lar pattern until the tapered piston breaks loose,
or until the maximum specified torque on the
capscrews (see below) is reached.
Max. torque , 1.125 in. capscrews
. . . . . . . . . . . . . . . . . . . 1140 ft. lbs.(1546 Nm)
Max. torque , 1.25 capscrews
. . . . . . . . . . . . . . . . . . . 1580 ft. lbs.(2142 Nm)
3. If the specified torque is reached and the
tapered piston has not broken free, slightly
loosen the capscrews and apply heat to two
places, 180° apart, on the spindle. The satu-
rated temperature of the spindle must not
exceed 850° F (454° C).
Heating the spindle in excess of 850° F (454° C)
may cause serious damage to the spindle.
4. Tighten the capscrews again to the maximum
specified torque as described in step 2.
5. Using a large hammer and heat at the specified
locations, carefully tap on the top surface of the
spindle until the piston breaks free.
Note: In extreme cases, it may be necessary to
remove additional steering arm retaining capscrews
and use additional pusher capscrews to apply more
force.
Front Wheel Hub and Spindle
4. Steering Arm
5. Spindle
6. Suspension Piston
04/03 G03018