Komatsu 830E-AC Shop Manual page 494

It is also important to ensure that steering linkage
components are tightened to the proper torque. Use
the proper torque specifications listed in this section
for steering linkage components.
Use extreme caution when performing mainte-
nance on any vehicle with an active steering sys-
tem. Serious injury or death can result from
contact with moving parts. Always keep a safe
distance from crush points.
TABLE 1. STEERING SPHERICAL BEARING
WEAR SPECIFICATIONS
Spherical Bearing Ball
Diameter (New)
Maximum Allowable Wear
Removal
1. With engine shut down and key switch OFF,
allow at least 90 seconds for the accumulator to
bleed down. Turn the steering wheel to make
sure no hydraulic pressure is present. Block
front and back of rear wheels.
2. Disconnect hydraulic lines at the steering cylin-
ders. Plug all line connections and cylinder
ports to prevent contamination of hydraulic sys-
tem.
G3-16
3. Remove locknuts (9, Figure 3-12) cap screws,
4. Remove pins (4 or 5) from each end of assem-
Installation
1. Align bearing spacers (10) and rod end (15)
2. Install pins (4 or 5), cap screws (3) and retain-
3. Connect grease lines to their respective ports.
91.19 mm
(3.59 in.)
1.01 mm
NOTE: Tie rod is to be installed with clamping bolts
(0.040 in.)
toward the rear of the truck.
Bearing Replacement
1. Remove cap screws (2, Figure 3-13) and lock-
2. Press bearing (1) out of bore in steering cylin-
3. Press new bearing into bore.
4. Install bearing retainers with cap screws and
Front Wheel Hub and Spindle
(3) and retainers (6 or 7) from both ends of
assembly.
bly and move assembly to clean work area.
Bearing spacers (10) will be free when pin is
removed. Ensure bearing spacers do not
drop out and become damaged when
removing pin.
with pin bores on spindle and frame.
ers (6 or 7) and secure with locknut (9). Tighten
to 712 N·m (525 ft lbs) torque.
Operate steering and check for leaks and
proper operation.
washers (3). Remove bearing retainer (4).
der or tie rod end.
lockwashers. Tighten cap screws to standard
torque.
G03029