brake LAND ROVER DEFENDER 1996 Repair Manual

REAR AXLE AND FINAL DRIVE
13
OVERHAUL REAR HUB - 110/130
Service repair no - 64.15.14.
Overhaul
1.Remove rear hub assembly
See Repair, Rear
hub assembly.
2.Remove outer bearing.
3.Mark, for reassembly, relationship between hub
and brake disc, if original hub is to be refitted.
4.Remove 5 bolts and separate hub from brake
disc.
5.Drift out grease seal and inner bearing from hub
and discard seal.
HUB COMPONENTS
1.Dust cap.
2.Drive shaft circlip.
3.Drive member.
4.Drive member joint washer.
5.Drive member retaining bolt.
6.Lock nut.
7.Lock washer.
8.Hub adjusting nut.9.Spacing washer.
10.Outer bearing.
11.Hub.
12.Inner bearing.
13.Grease seal.
14.Brake disc.
15.Disc retaining bolt.

51REAR AXLE AND FINAL DRIVE
14
OVERHAUL
6.Drift out inner and outer bearing tracks.
7.Clean hub and drift in inner and outer bearing
tracks.
8.Pack hub inner bearing with recommended
grease and fit to hub.
9.With lip side leading, fit new seal to hub using
special toolLRT-54-003(LST 137) seal replacer
and drift18G 134. Drive in seal flush with rear
face of hub. Apply grease between seal lips.10.Fit brake disc to hub, lining up to marks made
during dismantling. apllying Loctite 270, fit
retaining bolts. Tighten to
73 Nm (54 lbf/ft).
11.Grease and fit outer bearing to hub.
12.Fit hub assembly
See Repair, Rear hub
assembly
.

FRONT AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION DESCRIPTION
The welded steel front 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 front wheels via the axle shafts and
constant velocity joints which are totally enclosed in
the spherical and swivel housings.The front wheels are pivoted on tape roller bearings at
the top and bottom of the swivel housing. The wheel
hubs on all axles are supported by two taper bearings
and driven by drive flanges which are splined to the
one piece, stub shaft/constant velocity joint.
Front axle hub and swivel housing
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Stub axle
6.Wheel bearings
7.Inner and outer hub seals
8.Axle shaft seal
9.Hub lock plate, thrust washer and nuts
10.Brake disc
11.Drive flange
12.Shim washer and circlip13.Dust cap
14.Constant velocity joint/shaft
15.Thrust collar for CV joint
16.Roller bearing
17.Spacer
18.Circlip
19.Top and bottom swivel taper bearing
20.Top and bottom swivel pins
21.Spherical housing, seal and retainer
22.Swivel housing
23.Constant velocity shaft seal

FRONT AXLE AND FINAL DRIVE
1
REPAIR REV: 05/99 FRONT AXLE ASSEMBLY
Service repair no - 54.10.01
Remove
WARNING: Remove and refit of axle
requires a further two persons to steady
axle when lowering or repositioning axle.
1.Support chassis front.
2.Remove road wheels.
3.Support axle weight with hydraulic jack.
4.Remove radius arms to chassis frame nuts.
5.Disconnect steering damper from track rod.
Using a extractor remove track rod links from
swivel pin arms.
6.Remove four nuts and bolts securing radius
arms to axle bracket.
7.Remove radius arms.
8.Remove bolts securing brake hose brackets .
Refit bolts to prevent oil leakage.
9.Remove bolts from brake calipers and tie to one
side.
10.Remove nuts and washers securing shock
absorbers to axle.
11.Disconnect drag link from swivel pin housing
arm.
12.Remove two nuts and bolts securing panhard
rod to axle bracket. Lift rod clear of axle.
13.Mark for reassembly drive shaft flanges.
Remove four nuts and bolts, tie propeller shaft to
one side.
14.Release axle ventilation pipe banjo and lower
axle assembly. Remove road springs.
15.Disconnect anti-roll bar link
See FRONT
SUSPENSION, Repair, Anti-roll bar ball
.
16.Remove axle assembly.
Refit
17.Position axle under vehicle, supporting left side
of axle, and fit anti-roll bar links
See FRONT
SUSPENSION, Repair, Anti-roll bar links
.
18.Fit propeller shaft. Tighten bolts to
47 Nm (35
lbf/ft).
19.Fit panhard rod to axle bracket. Tighten bolts to
88 Nm (65 lbf/ft).
20.Fit drag link to swivel pin arm. Tighten fixings to
40 Nm (30 lbf/ft).
21.Fit shock absorbers to axle.
22.Fit brake calipers. Tighten bolts to
82 Nm (60
lbf/ft).
23.Tighten upper swivel pin bolts to78 Nm (58
lbf/ft).
24.Fit radius arms to axle brackets. Tighten bolts to
197 Nm (145 lbf/ft).
25.Fit steering damper to track rod.
26.Fit radius arms to chassis side member. Tighten
fixings to
197 Nm (145 lbf/ft).
27.Tighten track rod end to40 Nm (30 lbf/ft)and fit
new split pin.
28.Remove chassis supports, 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)

54FRONT AXLE AND FINAL DRIVE
2
REPAIR FRONT HUB ASSEMBLY
Service repair no - 60.25.01.
Remove
1.Loosen front wheel nuts, jack up vehicle and
lower onto axle stands and remove road wheel.
2.Release brake hose clips and remove brake
caliper and brake disc shield bolts. Secure to
one side.3.Lever off dust cap.
4.Remove circlip and drive shaft shim from
driveshaft.
5.Remove 5 bolts and withdraw driving member
and joint washer.
6.Bend back lock washer tabs.
7.Remove locknut and lock washer.
8.Remove hub adjusting nut.
9.Remove spacing washer.
10.Remove hub and brake disc assembly complete
with bearings.
HUB COMPONENTS
1.Dust cap.
2.Drive shaft circlip.
3.Drive shaft shim.
4.Drive member.
5.Drive member joint washer.
6.Drive member retaining bolt.
7.Lock nut.
8.Lock washer.9.Hub adjusting nut.
10.Spacing washer.
11.Outer bearing.
12.Hub.
13.Inner bearing.
14.Grease seal.
15.Brake disc
16.Disc retaining bolt.

FRONT AXLE AND FINAL DRIVE
3
REPAIR REV: 05/99 Refit
11.Clean stub axle and drive shaft and fit hub
assembly to 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.
14.Back off adjusting nut 90°and tighten to
10 Nm
(7 lbf/ft).
15.Fit a new lock washer.
16.Fit locknut. Tighten to
50 Nm (37 lbf/ft).
17.Tab over lock washer to secure adjusting nut
and locknut.
18.Fit a new joint washer to driving member and fit
member to hub. Tighten bolts to
65 Nm (48
lbf/ft).
19.Fit original drive shaft shim and secure with a
circlip.
20.To check drive shaft end play, mount a dial
gauge using bracketLRT-99-503and rest pin in
a loaded condition on end of drive shaft.
21.Fit a suitable bolt to threaded end of drive shaft.
Move drive shaft in and out noting dial gauge
reading. End play should be between 0,08 to
0,25 mm.
22.If end play requires adjustment, remove circlip,
measure shim thickness and fit an appropriate
shim to give required end-play.
23.Remove bolt from drive shaft, fit circlip and dust
cap.
24.Fit brake disc shield and brake caliper. Tighten
fixings to
82 Nm (60 lbf/ft).
25.Bleed brake systemSee BRAKES, Repair,
Brake system bleed
.
26.Fit road wheel, remove axle stands and tighten
road wheel nuts 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)
27.Operate footbrake to locate brake pads before
driving vehicle.

FRONT AXLE AND FINAL DRIVE
1
OVERHAUL FRONT DIFFERENTIAL
Service repair no - 54.10.07.
Overhaul
NOTE: The front axle differential, for all
models, is the same as that fitted to the 90
rear axle and can only be serviced as a
complete assembly
See REAR AXLE AND FINAL
DRIVE, Repair, Differential assembly - 90
.
FRONT HUB
Service repair no - 60.25.14.
Overhaul
1.Remove hub assembly
See Repair, Front hub
assembly
.
2.Remove outer bearing.
3.Mark, for reassembly, relationship between hub
and brake disc, if original hub is to be refitted.
4.Remove 5 bolts and separate hub from brake
disc.
5.Drift out grease seal and inner bearing from hub
and discard seal.
6.Drift out inner and outer bearing tracks.
7.Clean hub and drift in inner and outer bearing
tracks.
8.Pack hub inner bearing with recommended
grease and fit to hub.
9.With lip side leading fit new seal to hub using
special toolLST 137seal replacer and drift18G
134. Drive in seal flush with rear face of hub.
Apply grease between seal lips.
10.Fit brake disc to hub, lining up to marks made
during dismantling. Applying Loctite 270, fit
retaining bolts. Tighten to
73 Nm (54 lbf/ft).
11.Grease and fit outer bearing to hub.
12.Fit hub assembly
See Repair, Front hub
assembly
.

54FRONT AXLE AND FINAL DRIVE
4
OVERHAUL Swivel pin housing
22.Remove bolts securing oil seal retaining plate
and joint washer. Release assembly from swivel
pin housing.
NOTE: Removal of oil seal and retaining
plate is achieved when swivel bearing
housing is removed.
23.Remove 2 bolts, retaining lower swivel pin to
housing.
24.Remove brake disc shield bracket.
25.Tap lug to remove lower swivel pin and joint
washer.
26.Remove two bolts retaining brake hose bracket
and top swivel pin.
27.Remove bracket, top swivel pin and shims.
28.Remove swivel pin housing while retrieving
lower and upper bearings.
Swivel bearing housing
29.Remove lower bearing track from swivel bearing
housing.
NOTE: Use upper bearing opening to gain
access to lower bearing track.
30.Remove 7 bolts retaining swivel bearing housing
to axle case.
31.Remove inner oil seal from back of housing.
32.Remove top bearing track from swivel bearing
housing.
NOTE: Use lower bearing opening to gain
access to upper bearing track.
33.If worn, pitted or damaged, renew housing.
34.Fit upper and lower bearing tracks into swivel
bearing housing.
CAUTION: Ensure bearing tracks are fitted
square or damage could occur.
35.With seal lips trailing, fit swivel housing inner oil
seal into rear of housing. Grease seal lips.
Fit swivel pin housing
36.Coat swivel bearing housing to axle casing bolts
with Loctite 270 or equivalent.
37.Coat both sides of joint washer with a sealing
compound. Position swivel bearing housing to
axle mating face.Swivel assembly components
1.Swivel pin housing
2.Top swivel pin and brake hose bracket
3.Upper and lower swivel pin bearings
4.Shim
5.Retaining plate and washer
6.Oil seal
7.Joint washer
8.Swivel bearing housing
9.Joint washer
10.Lower swivel pin
11.Mudshield bracket
12.Swivel housing inner oil seal

FRONT AXLE AND FINAL DRIVE
5
OVERHAUL 38.Place retaining plate, joint washer and oil seal
over axle flange ready for assembly.
39.Fit swivel bearing housing to axle flange with 7
bolts. Tighten to
73 Nm (54 lbf/ft).
40.Grease and fit upper and lower swivel pin taper
roller bearings.
41.Position swivel pin housing over swivel bearing
housing.
42.Coat joint washer both sides with sealing
compound and position on lower swivel pin.
43.Loosely fit brake shield bracket plus lower swivel
pin with lug outboard to swivel pin housing.
44.Loosely fit top swivel pin plus existing shims and
brake hose bracket to swivel pin housing.
45.Apply Loctite 270 or equivalent to lower swivel
pin bolts.
78 Nm (58 lbf/ft),bend over lock tabs.
46.Tighten top swivel pin bolts to
78 Nm (58 lbf/ft).
Check and adjust preload on bearings
NOTE: Swivel housing oil seal and axle
should not be fitted.
47.Attach a spring balance to ball joint bore and pull
balance to determine effort required to turn
swivel pin housing.
Resistance, once initial inertia has been
overcome, should be1.16 to 1.46 kg.Adjust by
removing or adding shims to top swivel pin.
48.When setting is correct remove top swivel bolts,
apply Loctite 270 or equivalent. Refit bolts and
tighten to
78 Nm (58 lbf/ft),and bend over lock
tabs.
49.Apply recommended grease between lips of
swivel oil seal.50.Fit oil seal, joint washer and retaining plate with
7 bolts and spring washers. Tighten to
11 Nm (8
lbf/ft).
51.Fit tie rod and drag link and secure with new
cotter pins. Tighten fixing to
40 Nm (30 lbf/ft).
52.Fit brake disc shield.
53.Loosely fit lock stop bolt and nut.
54.Apply a recommended grease between lips of
swivel housing oil seal.
55.Secure oil seal with retaining plate and securing
bolts. Tighten to
11 Nm (8 lbf/ft).
56.Fit track-rod and drag link and secure with new
cotter pins.
57.Loosely fit lock stop bolt for later adjustment.
58.Fit brake disc shield.
Fit driveshaft and stub axle
59.Insert axle shaft, and when differential splines
are engaged, push assembly in fully.
CAUTION: Take care not to damage axle
shaft oil seals.
60.Place a new joint washer in position on swivelpin
housing to stub axle mating face. Coat threads
of stub axle bolts with Loctite 270.
61.Fit stub axle with flat at 12 O'clock position.
CAUTION: Ensure that constant velocity
joint bearing journal is butted against
thrust ring on stub axle before stub axle is
secured.
62.Place mud shield in position and secure stub
axle to swivel pin housing with 6 bolts and
tighten evenly to
65 Nm (48 lbf/ft).
63.Fit brake jump hoses to brake jump hose
bracket.
64.Fit complete front hub assembly
See Repair,
Front hub assembly
.
65.Check swivel pin housing oil drain plug is fitted.
66.Fill swivel assembly to correct level, with new oil
See SECTION 10, Maintenance, Under
vehicle maintenance
.
NOTE: On later vehicles fill swivel pin
housing with 0.33 Litres of Molytex EP 00
grease.
67.Set steering lock stop bolts
See STEERING,
Adjustment, Steering lock stops
.

FRONT AXLE AND FINAL DRIVE
1
SPECIFICATIONS, TORQUE REV: 05/99 TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
FRONT AXLE
Hub driving member to hub 65*.......................................................................
Brake disc to hub 73.......................................................................................
Stub axle to swivel pin housing 65*.................................................................
Brake caliper to swivel pin housing 82............................................................
Upper swivel pin to swivel pin housing 78*.....................................................
Lower swivel pin to swivel pin housing 78*.....................................................
Oil seal retainer to swivel pin housing 11........................................................
Swivel bearing housing to axle case 73*.........................................................
Pinion housing to axle case 41.......................................................................
Crown wheel to differential housing 58...........................................................
Differential bearing cap to pinion housing 90..................................................
Differential drive flange to drive shaft 47.........................................................
Mudshield to bracket lower swivel pin 11........................................................
Bevel pinion nut 130........................................................................................
Draglink to hub arm 40....................................................................................
Panhard rod to axle bracket 88.......................................................................
Radius arm to axle 190....................................................................................
Radius arm to chassis side member 190.........................................................
NOTE: * These bolts to be coated with Loctite 270 prior to assembly.