Operation and maintenance manual

Section 180-0040
Suspension System - Rear Suspension
SM 2340 09-04
2
REMOVAL
Numbers in parentheses refer to Fig. 1.
WARNING
To prevent personal injury and property
damage, be sure wheel chocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
1. Position the vehicle in a level work area, raise the
body and install body safety prop to secure body in
partially raised position
2. Apply the parking brake and switch off the engine.
Turn steering wheel several times to relieve any
pressure in the steering system.
3. Block front road wheels, place the steering lock bar
in the 'Locked' position and the battery master switch
in the 'Off' position.
4. Using suitable blocking equipment, block equalizer
beams to prevent movement when raising the trailer
frame.
5. Whilst the rear road wheels are still on the ground,
loosen the wheel nuts.
6. Using suitable lifting equipment, raise the machine
until the rear wheels are off the ground. Support the
vehicle with suitable stands and blocking at the trailer
frame, articulation pivot area and centre and rear axle
assemblies.
7. Support one tyre and rim assembly with suitable
lifting equipment and remove wheel nuts securing the
rim to the axle. Remove tyre and rim assembly.
8. Repeat step 7 for the remaining rear tyre and rim
assemblies.
9. Disconnect hydraulic brake lines from tee at both
the centre axle and rear axle assemblies. Cap lines
and fittings to prevent ingress of dirt.
10. Remove blocking equipment from equalizer beams
(4).
11. Disconnect grease lines (47 & 48) from elbows
(40), on both panhard rods (31). Cap lines and fittings.
If necessary remove elbows (40) from panhard rods
(31).
12. Remove bolts (44) and washers (45) securing
manifold brackets (46) to equaliser beams (4). Remove
manifold brackets (46).
13. Remove locknuts (30), lockwashers (19) and
bolts (29) securing interleaf mounts (7) to equalizer
beams (4).
14. Remove bolts (16) and lockwashers (19) securing
interleaf mounts (7) to brackets (1 & 3) mounted on the
centre and rear axles. Remove interleaf mounts (7).
15. Remove bolts (26) and washers (17) securing cover
(25) to equalizer beam (4). Remove cover (25).
16. Remove bolts (24) and washers (23) securing
retaining plate (22) to shaft on frame. Remove
retaining plate (22).
17. Using suitable lifting equipment, support equalizer
beam (4) and withdraw from shaft on frame. If
required remove bushing (21) from equalizer beam (4).
18. Remove wear ring (20) and 'V' ring seal (13) from
shaft on frame.
19. Repeat steps 13 through 16 to remove the opposite
equalizer beam (4).
20. Remove locknuts (14), hardened washers (12) and
bolts (15 & 28) securing control links (5) between the
rear and centre axle brackets (1, 2 , 3 & 34) and frame
mounting brackets. Remove control links (5).
21. Refer to detail 'B' & 'E'. Remove bolts (37),
lockwashers (36) and washers (38) securing pins (35)
through mounting brackets (1) on both centre axle/ LH
frame mounting bracket and the rear axle / RH frame
mounting brackets.
22. Remove both panhard rods (31), v-ring seals (39)
and spacers (51). If necessary remove retainers (33)
and spherical bearings (32) from panhard rods (21).
23. Remove locknuts (10), hardened washers (9) and
bolts (8) securing mounting bracket (3) on the rear axle.
Remove mounting bracket (3).
24. Remove locknuts (10), hardened washers (9) and
bolts (8 & 18) securing mounting bracket (1) on the
rear axle. Remove mounting bracket (1).
25. Remove bolts (11) and hardened washers (12)
securing mounting bracket (2) on the rear axle.
Remove mounting bracket (2).