Steering Cylinders And Tie Rod; Spherical Bearing Wear Limits - Komatsu 830E Shop Manual

23. Remove suspension support chain (1, Figure 3-
10) if installed, and all cribbing. Lower truck tire
to ground.
NOTE: The wheel bearing preload should be
checked 500 hours after truck is commissioned and
after the first 500 hours following the assembly or
servicing of the wheel bearings. During the 500 hour
preload check, if the shim pack requires a change
larger than 0.007 in, disassemble the wheel and
bearing assembly and check for wear or damage.
Replace worn or damaged parts and assemble
wheel assembly. Check bearing preload again at 500
hours.
24. Check bearing adjustment after first 500 hours of
operation and at each 5000 hour maintenance
interval thereafter.
G3-10
FIGURE 3-11. SPHERICAL BEARING WEAR LIMITS
1. Outer Race
2. Ball
Front Wheel Hub and Spindle

STEERING CYLINDERS AND TIE ROD

The steering cylinders and tie rod are mounted in the
same manner. The removal and installation instruc-
tions are applicable to both.

Spherical Bearing Wear Limits

It is necessary to determine the condition of spherical
bearings on steering linkage components for opti-
mum steering performance. Ball diameter new
dimensions and maximum allowable wear specifica-
tions are listed in Table 1. Bearings that exceed the
maximum wear limits must be replaced.
If premature wear of the bearings is evident, check
the automatic lubrication system to ensure the proper
amount of lubrication is being received at the joint(s)
in question. If lubrication is done manually, ensure
that a sufficient amount of grease is being applied on
a regular basis. Refer to Section P, Lubrication and
Service, for information on proper lubrication inter-
vals.
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.
3. Pin
4. Housing
04/03 G03018