Section 10: FRONT AXLE
PA1593
5
NOTE
Refer to Section 16: Suspension for
recommended tightening torques.
5. SERVICE INSTRUCTIONS FOR STEER
AXLE
5.1 STEERING KNUCKLE (KING) PIN
INSPECTION
MAINTENANCE
An inspection should be made at intervals of
30,000 miles (48 000 km) or twice a year
whichever comes first.
Aspects to be considered are:
Lateral slackness
Vertical slackness
Refer to “DANA SPICER Service Manual NDS
Axle Range” found in the OEM manuals folder.
NOTE
Before commencing checks, apply parking
brake, raise wheels off ground and support axle
on stands.
5.1.1 Checking Lateral Slackness
Following regular and thorough greasing
practices will maximise bushing life. This
procedure measures the upper & lower bushing
wear due to side and vertical loading. While this
is being carried out, the brake must be applied.
Upper Bushing Lateral Inspection
1. Mount dial indicator on the axle. Reference
the upper part of the steering knuckle.
2. Move the tire and wheel assembly in and
out with a push/pull motion and have an
assistant record the dial indicator reading.
3. Replace the upper bushing if readings are in
excess of 0.020" (0.5mm).
4. If displacement exceeds stated allowance
then need for bush / bearing attention and
possible renewal, is in evidence.
Lower Bushing Lateral Inspection
1. Mount dial indicator on the axle. Reference
the base of the lower arm on the steering
knuckle.
2. Move the tire and wheel assembly in and
out with a push/pull motion and have an
assistant record the dial indicator reading.
3. Replace the upper bushing if readings are in
excess of 0.020" (0.5mm).
4. If displacement exceeds stated allowance
then need for bush / bearing attention and
possible renewal, is in evidence.