Komatsu 830E-AC Shop Manual page 496

TOE-IN ADJUSTMENT
1. The steering system must first be centered in
the straight ahead position. Shut down engine
and turn key switch OFF, and allow at least 90
seconds for the accumulator to bleed down.
DO NOT turn steering wheel.
Block front and back of rear wheels.
2. Check toe-in by measuring the distance
between the centers of the front tires. These
measurements should be taken on a horizontal
center line at front and rear of tires. Refer to
Figure 3-14.
3. The front measurement should be 1.9 ± 0.6 mm
(0.75 ± 0.25 in.) less than rear measurement for
bias-ply tires. Radial tires and undesignated
tires should have equal measurements (zero
toe-in).
4. For trucks with an adjustable rod end at only
one end of the tie-rod, remove tie rod pin from
spindle at adjustable end according to the
instructions in "Steering Cylinders and Tie Rod,
Removal".
NOTE: For trucks with adjustable rod ends at both
ends of the tie-rod, pin removal is not necessary.
5. Loosen clamp nuts (18, Figure 3-12) on tie-rod
and adjust as necessary.
a. For trucks with an adjustable rod end at only
one end of the tie-rod, adjust length by turn-
ing rod end "in" or "out". When dimension
required is attained, rotate the rod end to
align the bearing bore with the bearing bore
on the opposite end. Reinstall pin at spindle
according to the instructions in "Steering Cyl-
inders and Tie Rod, Installation".
b. For trucks with adjustable rod ends at both
ends of the tie-rod, rotate tie-rod to obtain
the required dimension.
See chart under Figure 3-14 for "Toe-in Data"
6. Tighten clamp nuts on tie rod to 420 N·m (310 ft
lbs) torque.
NOTE: In order to obtain proper torque, castellated
nuts and cotter pins may be replaced with self-
locking nuts.
7. Install lubrication line(s) to pin ends.
8. Remove blocks from rear wheels.
G3-18
Nominal Tie-rod Length,
Radial Tires, "0" Toe-in Loaded
Nominal Tie-rod Length,
Bias Ply Tires, "0.75" Toe-in Loaded
Change In Toe-in
From Loaded to Empty
Change In Toe-in Length with:
One Full Turn Of One Rod-end
Change In Toe-in Length with:
One Full Turn Of Double End Tie Rod
Front Wheel Hub and Spindle
FIGURE 3-14.MEASURING TOE-IN
830E Toe-In Data cm (in.)
365.76
(144.00)
366.50
(144.29)
0
0.833
(0.328)
1.666
(0.656)
G03029