Rear Suspension

Bushes - Rear Long Arm - ACE

Service Repair No - 64.60.46

CAUTION: The ACE hydraulic system is extremely sensitive to the ingress of dirt or debris. The smallest amount could render the system unserviceable. It is imperative that the following precautions are taken:
^ ACE components are thoroughly cleaned externally before work commences.
^ All opened pipe and module ports are capped immediately.
^ All fluid is stored in and administered through clean containers.

Models with SLS:

WARNING: Ensure the air suspension system is made safe before commencing work. Otherwise the chassis may lower onto the bump stops during repair.

Remove
1. Raise vehicle on ramp.





2. Remove nuts securing anti-roll bar links to axle. Release links from axle.
3. Pull torsion bar down for access to actuator.





4. Remove securing nuts and remove anti-roll bar links from torsion bar.
5. Position container to collect fluid spillage.





6. Remove cap nuts securing fluid pipes to actuator. Disconnect pipes and remove and discard sealing washers.

CAUTION: Always fit plugs to open connections to prevent contamination.





7. With assistance, remove bolts securing torsion bar clamps. Remove clamps and remove torsion bar and actuator.





8. Use LRT-60-009 to remove nut securing actuator push rod to long arm.
9. Remove nut and bolt securing actuator to short arm and remove actuator.





10. Restrain torsion bar and remove long arm securing bolt and washer. Remove long arm from torsion bar.

CAUTION: The short arm and torsion bar are supplied as an assembly and must not be separated.





11. Use a suitable drift to remove both halves of slipper bush from long arm.
12. Use suitable adapters to press actuator rod end bush from long arm.

Refit
1. Clean bush locations in long arm.





2. Use suitable adapters to press new actuator rod end bush into long arm. Ensure bush is correctly aligned.
3. Align slots in new slipper bush halves with those in long arm. Carefully press both halves of slipper bush into long arm. Ensure the sealing rings on the bush faces are not damaged.
4. Clean long arm and mating face on torsion bar.
5. Fit long arm to torsion bar. Restrain torsion bar and tighten bolt to 180 Nm (133 ft. lbs.).
6. Ensure actuator and bushes are clean.
7. Fit actuator and tighten nut and bolt securing actuator to short arm to 180 Nm (133 ft. lbs.).
8. Using LRT-60-009, fit and tighten nut securing actuator push rod to long arm to 48 Nm (35 ft. lbs.).
9. With assistance, position torsion bar and actuator to vehicle and fit torsion bar clamps. Tighten torsion bar clamp bolts to 45 Nm (33 ft. lbs.).
10. Connect pipes to actuator with cap nuts and new sealing washers. Tighten cap nuts to 29 Nm (21 ft. lbs.). Ensure pipes are not under tension or kinked.
11. Fit anti-roll bar links to torsion bar and tighten nuts to 50 Nm (37 ft. lbs.).
12. Ensure washer is in place on lower ball joint of each anti-roll bar link and connect lower ball joints to axle. Tighten nuts to 100 Nm (74 ft. lbs.).
13. Renew ACE high pressure filter.
14. Lower vehicle.
15. Bleed ACE hydraulic system.