Chapter 5 - Rear Suspension
167
Control arm to Hub bushings
1. Remove the control arm from the hub by follow-
ing the steps described in the previous section of
this chapter.
2. Press the spacer out. With the spacer removed
the bushings can now be removed.
See Figure 5.19.
3. Install by following the above steps in reverse
order.
NOTE: Lube the bolt that connects the control
arm to hub prior to installing. If equipped with a
grease fitting, apply one squirt of grease into the
grease fitting.
NOTE: Lube every 100 hours of use.
Figure 5.19
Spacer
Bushing
Wheel Bearings
Refer to the INSPECTION section of this chapter
for information on when to replace the wheel
bearings.
Wheel bearing construction:
• A pair of tapered Timken® roller bearing cones
support the axle in each front hub. Both bearing
cones ride in a one-piece cup (race) that is
shaped like the middle third of an hour glass.
• The cup is held into the hub by a retaining ring at
the outside. The inside edge seats against a
shoulder that is machined into the hub.
• Bearing pre-load is set by the torque of the axle
nut. Over-tightening or under-tightening will
have an adverse effect on wheel bearing life.
• Press in seals protect and retain the bearing
cones in the cup.
Wheel bearing service intent:
• If damage is evident on either bearing cup,
replace both cups and the race. Bearing cups
and races should always be replaced as a pair.
It stands to reason that if one bearing on a wheel
is damaged, the other will have suffered as well.
• If there is reason to believe that the grease has
been contaminated, the bearings can be disas-
sembled, cleaned, inspected, re-packed, and
returned to service.
• After 1,000 hrs. or four years of service, re-pack-
ing the wheel bearings would be prudent.
To remove the wheel bearings:
1. Lift and safely support the vehicle as described
in the INTRODUCTION section of this manual.
The vehicle should be supported by the frame.
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