brake LAND ROVER DEFENDER 1999 Repair Manual

TRANSFER GEARBOX
11
REPAIR
3.Remove screw securing brake drum.
4.Remove brake drum.
5.Restrain transfer gearbox drive flange using
LRT-51-003, remove and discard drive flange
nut, remove and discard steel and felt washers.
6.UsingLRT-99-500if necessary, remove drive
flange from transfer gearbox.
7.Remove and discard rear output shaft oil seal
from transfer gearbox.
Refit
8.Clean seal recess.
9.Lubricate new oil seal with transfer gearbox oil.
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41TRANSFER GEARBOX
12
REPAIR
10.Fit new seal usingLRT-41-012.
NOTE: Use end of tool marked’REAR’to
fit seal.
11.Position drive flange, fit new felt and steel
washers.
12.PositionLRT-51-003fit and tighten new drive
flange nut to148 Nm (109 lbf.ft).
13.Position brake drum and tighten screw.
14.Tighten adjuster bolt to25 Nm (18 lbf.ft)then
back off 1 1/2 turns.
15.Check that brake drum is free to rotate.
16.Fit propeller shaft.See PROPELLER SHAFTS,
Repair.
17.Top-up transfer gearbox oil.GASKET - REAR OUTPUT SHAFT HOUSING
Service repair no - 41.20.55
Remove
1.Drain transfer gearbox oil.See
MAINTENANCE ,
2.Remove rear output shaft seal.See this
Section.
3.Mark output shaft housing to main casing for
assembly purposes.
4.Note position of shoulder bolt, remove 6 bolts
securing housing to main casing.
Refit
5.Clean output shaft housing, mating face on main
casing and sealant from bolt threads.
6.Apply Hylosil RTV 102 to mating flange on
output shaft housing.
7.Fit output shaft housing to main casing ensuring
that splines of output shaft are engaged in
differential.
8.Apply Loctite 290 to bolt threads.
9.Fit bolts and tighten by diagonal selection to45
Nm (33 lbf.ft).
10.Fit rear output shaft seal.See this Section.
11.Fill transfer gearbox with oil.See
MAINTENANCE ,
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TRANSFER GEARBOX
13
REPAIR SWITCH - LOW DETECT
Service repair no - 41.30.05
Remove
1.Remove battery cover.
2.Disconnect battery negative lead.
3.Remove gear lever knobs.
4.Remove gearbox tunnel carpet.
5.Remove gear lever(s) gaiter.
6.Release and remove insulation pad from around
gear levers.
7.Remove 2 screws securing relay/fuse panel and
collect 2 spacers.
8.Release bulkhead carpet from LH side of tunnel
and move aside.
9.Remove 2 bolts securing hand-brake lever to
body and move lever aside.
10.Remove 13 screws securing tunnel cover.
11.Release and remove tunnel cover.12.Release switch multiplug from bracket on
transfer gearbox, disconnect from harness.
13.Remove switch.
Refit
14.Clean switch and mating face on transfer
gearbox.
15.Fit nut/spacer to switch with counterbore
positioned towards switch head.
16.Apply Hylomar PL32 sealant to switch threads.
17.Fit switch and tighten to24 Nm (19 lbf.ft).
18.Connect multiplug to harness.
19.Fit and align tunnel cover, fit and tighten screws.
20.Position hand-brake lever and tighten bolts to25
Nm (18 lbf.ft).
21.Secure bulkhead carpet to LH side of tunnel.
22.Position relay/fuse panel, fit spacers and tighten
screws.
23.Fit insulation pad around gear levers.
24.Fit gear lever (s) gaiter.
25.Fit gearbox tunnel carpet.
26.Fit gear lever knobs.
27.Reconnect battery negative lead.
28.Fit battery cover.
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PROPELLER SHAFTS
1
REPAIR PROPELLER SHAFT - FRONT
Service repair no - 47.15.02
Remove
1.Remove underbelly panel.See CHASSIS AND
BODY, Repair.
NOTE: To remove the underbelly panel,
the propeller shaft has to be released from
the front differential flange.
2.Mark propeller shaft to transfer gearbox.
3.Remove 4 nuts securing propeller shaft to
transfer gearbox flange.
4.Remove propeller shaft.
Refit
5.Clean propeller shaft flanges and mating faces.
6.Position propeller shaft to transfer gearbox
flange and tighten nuts to48 Nm (35 lbf.ft).
7.Fit underbelly panel.See CHASSIS AND
BODY, Repair.PROPELLER SHAFT - REAR
Service repair no - 47.15.03
Remove
1.Raise rear of vehicle.
WARNING: Support on safety stands.
2.Using a centre punch, mark relationship of
propeller shaft flanges.
3.Remove 4 nuts securing propeller shaft to park
brake flange.
NOTE: Rotation of propeller shaft may be
required during the above procedure.
4.Remove 4 nuts and bolts securing propeller
shaft to rear axle flange.
NOTE: Rotation of propeller shaft may be
required during the above procedure.
5.Release propeller shaft from park brake.
6.Remove propeller shaft.
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47PROPELLER SHAFTS
2
REPAIR Refit
7.Grease propeller shaft universal joints.
8.Grease propeller shaft spline.
9.Clean propeller shaft flange mating faces.
10.Fit propeller shaft to park brake flange bolts.
NOTE: Ensure relationship marks align.
11.Position propeller shaft to rear axle flange and fit
bolts.
12.Fit nuts and bolts securing propeller shaft to rear
axle flange and tighten to48 Nm (35 lbf.ft).
NOTE: Rotation of propeller shaft may be
required during the above procedure.
13.Fit nuts securing propeller shaft to park brake
and tighten to48 Nm (35 lbf.ft).
NOTE: Rotation of propeller shaft may be
required during the above procedure.
14.Remove stand(s) and lower vehicle.
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REAR AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION DESCRIPTION
The welded steel rear axle casing houses a separate
spiral bevel type differential unit, which is off set to the
right of the vehicle centre line. The differential unit
drives the rear wheels via the axle shafts and fully
floating hubs which are mounted on tapered roller
bearings.
Lubrication
The differential is lubricated with oil and the hub
bearings with grease.The hub bearings are fitted with inner and outer seals.
The outer seals prevent the differential oil mixing with
the hub grease and the inner seals prevent dirt
ingress into the hub.
Ventilation
Ventilation of the hub bearings is through the outer oil
seals and the differential ventilation pipe, which
terminates at a high level.
Rear axle hub - 90
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Wheel bearing stub axle6.Wheel bearings
7.Inner hub seal
8.Outer hub/axle shaft seal
9.Hub lock plate, thrust washer and nuts
10.Brake disc
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51REAR AXLE AND FINAL DRIVE
2
DESCRIPTION AND OPERATION
Rear axle hub - 110/130
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Wheel bearing stub axle
6.Wheel bearings
7.Inner hub seal8.Outer hub/axle shaft seal
9.Hub lock plate, thrust washer and nuts
10.Brake disc
11.Drive flange
12.Drive shaft circlip
13.Dust cap
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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 two persons to steady
the axle when lowering or repositioning
axle.
1.Drain brake system.
2.Support chassis rear.
3.Remove road wheels.
4.Support axle weight with hydraulic jack.
5.Disconnect shock absorbers.
6.Disconnect flexible brake hose at RH chassis
side member and breather hose at banjo
connection on axle casing.
7.Disconnect lower links at axle.8.Mark differential and propeller shaft flanges with
identification 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.
11.Release bolts and remove coil spring retaining
plates.
12.Lower axle and remove road springs.
13.If applicable, remove anti-roll bar links at axle
See REAR SUSPENSION, Repair. anti-roll
bar.
14.Remove axle assembly.
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51REAR AXLE AND FINAL DRIVE
2
REPAIR Refit
15.Position axle and fit lower links. Tighten fixings
to176 Nm (130 lbf/ft).
16.If applicable, fit anti-roll bar links to axleSee
REAR SUSPENSION, Repair. Anti-roll bar
links.
17.Raise axle and locate road springs.
18.Fit coil spring retaining plates and secure with
fixing bolts.
19.Secure pivot bracket ball joint to axle bracket.
Tighten fixing to176 Nm (130 lbf/ft).
20.Align propeller shaft to differential drive flange
and tighten fixings to47 Nm (35 lbf/ft).
21.Reconnect flexible brake hose and axle breather
hose.
22.Refit shock absorbers.
23.Fit road wheels and tighten to correct torque:
Alloy wheels -130 Nm (96 lbf/ft)
Steel wheels -100 Nm (80 lbf/ft)
Heavy Duty wheels -170 Nm (125 lbf/ft)
24.Remove rear chassis support.
25.Bleed brake systemSee BRAKES, Repair.
brake system bleed.
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REAR AXLE AND FINAL DRIVE
3
REPAIR REAR HUB ASSEMBLY - 90
Service repair no - 64.15.01
Remove
1.Place rear axle onto axle stands and remove
road wheel.
2.Release brake hose clips and remove brake
caliper bolts. Secure to one side.
WARNING: Take care not to kink brake
hose.
3.Remove 5 bolts and withdraw axle shaft.
4.Remove joint washer.
5.Bend back lock washer tabs.
6.Remove locknut and lock washer.
7.Remove hub adjusting nut.
8.Remove spacing washer.
9.Remove hub and brake disc assembly complete
with bearings.
Rear hub components - 90
1.Axle shaft.
2.Axle shaft joint washer.
3.Axle shaft retaining bolt.
4.Lock nut.
5.Lock washer.
6.Hub adjusting nut.
7.Spacing washer.8.Outer bearing.
9.Hub.
10.Inner bearing.
11.Grease seal.
12.Brake disc.
13.Disc retaining bolt.
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