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DAF CF65, CF75, CF85 Series . Manual - part 1084
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3-1
Rear axle alignment
DIAGNOSTICS
ΧΦ65/75/85 series
9
1
3. REAR AXLE ALIGNMENT
3.1 FAULT-FINDING TABLE
SYMPTOM: AXLE MISALIGNMENT
Possible cause
Remedy
Axle suspension clearance.
Check the axle suspension. Replace the worn
parts.
Loose U-bolts.
Check the tightening torques of the U-bolts.
Tighten the nuts to the specified tightening
torques.
Shifted centre bolt.
Check the centre bolt. Check the tightening
torques of the U-bolts.
Loose or shifted front spring bracket.
Check the spring brackets. Fit the spring bracket
as specified.
Incorrect spring bracket fitted.
Fit the spring bracket as specified.
Sagged spring assembly or spring assembly with
broken spring leaves.
Check opening of both spring assemblies. Replace
spring assemblies.
Difference in length between the spring
assemblies.
Measure the centre-to-centre distance between
shackle pin or spring eye bolt and centre bolt.
Adjust the alignment or replace the spring
assemblies.
Misalignment of the vehicle due to wrongly
adjusted or defective height adjustment.
Check/replace sensor. Recalibrate.
Bent torque rod (air suspension and tandem axle). Check the torque rods. Replace if necessary.
Incorrectly fitted torque rods (air suspension and
tandem axle).
Check the torque rods. Fit the torque rods
correctly.
Difference in length between the torque rods at the
vehicle's left and right sides (air suspension and
tandem axle).
Measure the length of the torque rods. Adjust the
difference in length.
Bent axle housing.
Check the straightness of the axle housing. If
possible, adjust by changing the axle alignment.
Bent leaf-sprung trailing axle yoke.
Replace the trailing axle yoke.
Misalignment of the vehicle because the
superstructure is heavier on one side.
Measure the wheel pressure. Distribute the weight
more evenly.
Inadequate alignment of axle suspension.
Check the alignment. Adjust the axle alignment.
Bent chassis.
Measure the chassis.
Straighten the chassis, if possible.
Chassis side members have shifted in relation to
one another.
Measure the chassis.
Straighten the chassis, if possible.
Align the axle.