Komatsu 830E-AC Shop Manual page 484

3. Position spindle and wheel hub assembly on
fork lift or similar lifting device as shown in Fig-
ure 3-4.
4. Raise the spindle and wheel hub assembly into
position.
5. Secure spindle to suspension using retainer
plate (2, Figure 3-2) and cap screws (1).
Tighten cap screws using the following proce-
dure:
a. Tighten cap screws (1) uniformly to 678 N·m
(500 ft lbs) torque.
b. Continue to tighten cap screws in increments
of 339 N·m (250 ft lbs) to obtain a final
torque of 2142 N·m (1580 ft lbs).
6. If removed, install steering arm (4, Figure 3-2).
Before installing steering arm, clean and check
the tapped holes in bottom of spindle for dam-
aged threads. Retap holes, if necessary.
Steering arm threads . . . . . .1.25 in. - 12NF tap
7. Install cap screws (5) and tighten to 2705 ± 135
N·m (1995 ± 200 ft lbs).
8. Install steering cylinder and tie rod in their
respective mounting holes on the spindle.
Tighten retaining nuts to 712 ± 71 N·m (525 ±
52 ft lbs) torque. Connect lubrication lines.
G3-6
9. Rotate the wheel hub to position the fill plug at
the 12 o'clock position. Remove the fill plug and
level plug. Fill wheel hub assembly at fill hole
with SAE 80W-90 oil. When properly filled, oil
should be present at the level (lower) hole.
Replace fill and level plugs.
10. Install wheel speed sensor harness securely
with mounting clamps. Connect harness to
wheel speed sensor.
11. Install junction block with the spacer, cap
screws, and flat washers.
12. Attach supply lines to brake calipers and con-
nect main supply lines to connection on frame.
13. Bleed brakes according to Bleeding Brakes,
Section "J".
14. Install wheel and tires as described in "Front
Wheel and Tire Installation".
Front Wheel Hub and Spindle G03029