Defender 90 NAS. Manual — part 46
REAR AXLE AND FINAL DRIVE
1
REPAIR
REAR AXLE
Service repair no - 51.25.01
Remove
WARNING: Remove and refit of axle
requires a further 2 persons to steady the
axle when lowering or repositioning.
1. Drain brake system.
2. Support rear of chassis.
3. Remove rear road wheels.
4. Support axle weight with hydraulic jack.
5. Disconnect shock absorbers.
6. Disconnect flexible brake hose at RH chassis
crossmember and vetilation pipe at banjo
connection on axle casing.
7. Disconnect lower links at axle.
8. Mark differential and propeller shaft flanges with
alignment marks for assembly.
9. Remove 4 nuts and bolts, lower propeller shaft
and tie to one side.
10. Disconnect pivot bracket ball joint at axle
bracket. Disconnect wheel speed sensor lead
plugs at LH side of chassis. Release sensor lead
retaining clips from chassis and ’A’ frame.
11. Release bolts and remove coil spring retaining
plates.
12. Lower axle and remove road springs.
13. Remove anti-roll bar links at axle
See REAR
SUSPENSION, Repair, anti-roll [sway] bar
ball joint links
14. Remove axle assembly.
Do not carry out further dismantling if component
is removed for access only.
15. Transfer components to new axle.
51
REAR AXLE AND FINAL DRIVE
2
REPAIR
Refit
16. Position axle and fit lower links. Tighten fixings
to
175 Nm, 130 lbf/ft.
17. If applicable, fit anti-roll bar links to axle
See
REAR SUSPENSION, Repair, anti-roll bar
joint links .
18. Raise axle and locate road springs.
19. Fit coil spring retaining plates and secure with
fixing bolts.
20. Secure pivot bracket ball joint to axle bracket.
Tighten fixing to
175 Nm, 130 lbf/ft.
21. Reconnect road speed sensor lead plugs and
secure leads to chassis and ’A’ frame.
22. Align propeller shaft to differential drive flange
and tighten fixings to
48 Nm, 35 lbf/ft.
23. Reconnect flexible brake hose and axle
ventilation pipe.
24. Refit shock absorbers.
25. Fit road wheels.
26. Remove rear chassis support.
27. Bleed brake system.
See BRAKES, Repair,
brake system bleed
REAR AXLE AND FINAL DRIVE
3
REPAIR
Rear hub components
1. Nut - sensor ring
2. Axle shaft.
3. Axle shaft joint washer.
4. Axle shaft retaining bolt - 5 off.
5. Lock nut.
6. Lock washer.
7. Hub adjusting nut.
8. Spacing washer.
9. Outer bearing.
10. Hub.
11. Inner bearing.
12. Grease seal.
13. Brake disc.
14. Disc retaining bolt - 5 off.
15. Sensor ring - engine management
REAR HUB ASSEMBLY
Service repair no - 64.15.01
Remove
1. Raise rear of vehicle and support rear axle onto
axle stands. Remove appropriate road wheel.
2. Release brake hose clips and remove brake
caliper bolts. Secure caliper to one side.
WARNING: Take care not to kink brake
hose.
3. Remove 5 bolts and withdraw axle shaft.
4. Remove and discard joint washer.
5. Bend back lock washer tabs.
6. Remove locknut and lock washer. Discard lock
washer.
7. Remove hub adjusting nut.
8. Remove spacing washer.
9. Remove hub and brake disc assembly complete
with bearings.
51
REAR AXLE AND FINAL DRIVE
4
REPAIR
Refit
10. Clean stub axle.
11. Fit hub assembly to stub axle.
12. Fit spacing washer.
13. Fit hub adjusting nut. Tighten to
50 Nm, 37 lbf/ft
ensure hub is free to rotate with no bearing play.
Back off adjusting nut 90
°
and tighten to
10 Nm,
7 lbf/ft .
14. Fit a NEW lock washer.
15. Fit locknut. Tighten to
61 Nm, 45 lbf/ft .
16. Tab over lock washer to secure adjusting nut
and locknut.
17. Using a NEW joint washer, fit axle shaft to hub.
Tighten bolts to
65 Nm, 48 lbf/ft .
18. Fit brake caliper. Tighten bolts to
82 Nm, 60
lbf/ft . Secure brake pipes to axle casing.
19. Fit road wheel, remove axle stands and tighten
road wheel nuts to
130 Nm, 95 lbf/ft.
20. Operate footbrake to locate brake pads before
driving vehicle.
DIFFERENTIAL ASSEMBLY
Service repair no - 51.15.01
Remove
1. Raise and support rear axle on axle stands.
Position drain tray and drain axle oil. Refit drain
plug.
2. Mark differential and propeller shaft flanges to
facilitate reassembly.
3. Remove 4 bolts and disconnect propeller shaft
from differential. Tie aside.
4. Remove hub drive member fixings and withdraw
axle half shafts sufficiently to disengage from
differential unit.
See rear hub assembly
5. Remove 10 locknuts securing differential to axle
case.
6. Withdraw differential unit.
NOTE: The differential unit can only be
serviced as a complete assembly with
matching drive pinion.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст