©

Scania CV AB 1998-04, Sweden

09:02-50

Issue 1

en

Wheel hubs on ADA 1350

Work description

1 710 811

2

©

Scania CV AB 1998, Sweden

Contents

Work description

Removing hub ...................................................3
Changing bearings.............................................8
Changing brake disc ..........................................10
Changing seal in axle tube ................................12
Changing inner seal ...........................................13
Fitting hub .........................................................14

Contents

0905w13b.mkr

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Scania CV AB 1998, Sweden

3

Removing the hub

Reconditioning the hub

Removing the hub

Special tools

Number

Designation

Drawing

Tool board

99 074

Impact drift

-

99 344

Lifting tool

-

99 358

Extension

-

82 327

Retainer

AD/AS4

82 328

Lifting tool

AD/AS4

103 515

99 344

109 864

82 327

109 767

109 768

82 328

Removing the hub

4

©

Scania CV AB 1998, Sweden

0905w13b.mkr

Wheel hub

1

Axle tube

2

Axle tube seal

3

Brake disc

4

Inner seal

5

Inner bearing

6

Bolt

7

Hub

8

Outer bearing

9

Thrust washer

10

Adjusting nut

11

Lock washer

12

Locknut

13

Drive shaft

14

Seal

15

Hub cover

16

Seal

17

Screw plug

18

Hub cover bolt

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Scania CV AB 1998, Sweden

5

Removing the hub

Removing

1

Evacuate the air suspension.

2

Raise the bus and support it on stands with
the hub centre 115 - 120 cm above the
ground.

3

Release the parking brake and remove the
wheels. Use the vehicle lifts.

4

For removing brake components, see book-
let 10:02-10.

5

Remove the brake chamber.

IMPORTANT!

Cover the hole for the pushrod

with tape or the like.

6

Attach lifting tool 99 344 to the brake cali-
per, secure the caliper with the workshop
hoist.

Removing the hub

6

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Scania CV AB 1998, Sweden

0905w13b.mkr

7

Remove the brake caliper bolts, using exten-
sion 99 358.

8

Lift the caliper away, using lifting tool
99 344 and the workshop hoist.

9

Remove the hub cover and drain the oil
from the hub.

10

Extract the drive shaft, using impact drift
99 074.

11

Attach lifting tool 82 328 to the hub and
support it with the workshop hoist.

12

Drive out the hub nut retainer.

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Scania CV AB 1998, Sweden

7

Removing the hub

13

Remove the hub nuts, using socket 82 327.

14

Remove the thrust washer and outer bearing.

15

Pull the hub with brake disc off the drive
shaft, using lifting tool 82 328 and the work-
shop hoist. The hub and brake disc weigh
about 70 kg.

Changing the bearings

8

©

Scania CV AB 1998, Sweden

0905w13b.mkr

Changing the bearings

Special tools

1

Remove the seal, using a pry bar or the like.

Number

Designation

Drawing

Tool board

82 325

Press plate

AD/AS4

87 445

Press drift

AD2

98 645

Press drift

G1

109 765

82 325

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Scania CV AB 1998, Sweden

9

Changing the bearings

5

Clean the seal’s contact surface in the hub
with alcohol.

6

Press the seal into place using press plate
82 325. Turn the press plate so that the seal
is pressed down 11 mm from the edge.

Note: The words “OIL SIDE” should face the
bearing.

7

Check all round the seal with a sliding cali-
per to make sure that it is pressed evenly
into place.

8

Turn the hub and press the outer bearing’s
outer race into place, using press drift
87 445.

2

Drive out the bearing races and clean the
hub.

3

Position the hub in a press. Press the inner
bearing’s outer race into place, using press
drift 98 645 and press plate 82 325.

4

Oil the inner bearing and fit it in place.

Changing the brake disc

10

©

Scania CV AB 1998, Sweden

0905w13b.mkr

Changing the brake disc

Specifications

Special tools

Tightening torque

Bolts, brake disc

300 Nm

Number

Designation

Drawing

Tool board

99 167

Lifting tool

G1

1

Position the hub with brake disc in a press
and secure with the press.

2

Remove the brake disc retaining bolts.

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Scania CV AB 1998, Sweden

11

Changing the brake disc

3

Fit lifting tool 99 167 and lift the hub away.
The hub weighs about 40 kg.

4

Clean the brake disc’s contact surface on the
hub. Thoroughly clean all the hub’s contact
surfaces.

5

Remove all remnants of locking compound
from the bolts.

6

Change the brake disc. The disc weighs
about 30 kg.

7

Lift the hub into place, using lifting tool
99 167.

8

Apply locking compound 561 200 to the
bolts and fit them in place. Tighten all bolts
to 20 Nm.

9

Tighten the bolts at opposite points alterna-
tely to 300 Nm.

Changing the axle tube seal

12

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Scania CV AB 1998, Sweden

0905w13b.mkr

Changing the axle tube
seal

Special tools

1

Remove the old seal using a pry bar or the
like.

2

Clean the seal’s contact surface in the axle
tube with alcohol.

Number

Designation

Drawing

Tool board

82 326

Press drift

AD/AS4

98 450

Shank

-

82 326

109 766

3

Fit a new seal, using drift 82 326 and shank
98 450. The sealing lips should face
inwards. The seal should be positioned
13.5 mm into the axle tube.

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Scania CV AB 1998, Sweden

13

Changing the inner seal

Changing the inner seal

Special tools

1

Remove the seal, using a pry bar or the like.

2

Clean the seal’s contact surface in the hub
with alcohol.

Number

Designation

Drawing

Tool board

82 325

Press drift

AD/AS4

109 765

82 325

3

Press the seal in place, using press drift
82 325.

Note: The words “OIL SIDE” should face the
bearing.

4

Check all round the seal with a sliding cali-
per to make sure that it is pressed evenly
into place.

Fitting the hub

14

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Scania CV AB 1998, Sweden

0905w13b.mkr

Fitting the hub

Specifications

Special tools

Tightening torque

Locknut, outer hub nut

560 Nm

Bolts, hub cover

46 Nm

Permissible clearance

Bearing clearance

0.01 - 0.05 mm

Miscellaneous

Oil volume, hub

0.7 litres

Number

Designation

Drawing

Tool board

82 327

Retainer

AD/AS4

82 328

Lifting tool

AD/AS4

98 075

Dial gauge

-

82 327

109 767

109 768

82 328

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Scania CV AB 1998, Sweden

15

Fitting the hub

Other tools

99 344

Lifting tool

-

99 358

Extension

-

Number

Designation

Drawing

Tool board

587 250

Magnetic foot

-

Number

Designation

Drawing

Tool board

103 515

99 344

109 864

Fitting the hub

16

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Scania CV AB 1998, Sweden

0905w13b.mkr

Fitting

1

Clean the seal’s contact surface on the axle
tube.

2

Lift the hub into place, using tool 82 328
and the workshop hoist.

Note: Take care to avoid damaging the inner
seal.

3

Oil the outer bearing and fit it in place.

4

Fit the thrust washer and inner nut (adjus-
ting nut).

Note: The chamfer on the nut should face out-
wards.

5

Rotate the hub and screw the nut on using
socket 82 327. Tighten until the hub starts to
offer resistance.

6

Seat the bearing by tightening the nut to
500 Nm, using socket 82 327.

7

Slacken the nut half a turn.

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Scania CV AB 1998, Sweden

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Fitting the hub

Adjusting bearing clearance

1

Mount dial gauge 98 075 with magnetic
foot 587 250 between hub and axle tube.

2

Slacken the adjusting nut and adjust the
axial clearance to 0.15 mm. Rotate the
hub several times, tapping it with a rub-
ber mallet while slackening the nut.
Check bearing clearance by pulling the
bearing straight out and then pressing it
straight in again.

3

Rotate the hub at least five times and
check the clearance afresh.

Note: Correct clearance is 0.15 mm, during

adjustment.

4

Remove the dial gauge. Fit the lock plate
and outer hub nut.

Note: The chamfer on the nut should face
inwards.

5

Tighten the outer hub nut to 560 Nm,
using socket 82 327.

6

Check the bearing clearance.

Note: Correct clearance is 0.01 - 0.05 mm
after tightening the outer hub nut.

7

If bearing clearance is not correct,
slacken the outer hub nut and reduce or
increase the clearance by means of the
inner hub nut. Then repeat points 4
and 5.

Fitting the hub

18

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Scania CV AB 1998, Sweden

0905w13b.mkr

8

Lock the outer nut by means of the lock
plate. If any of the lock plate’s flanges do
not coincide with the nut’s grooves, tighten
the nut to the nearest groove so that it can be
locked.

9

If the axle tube seal has been removed, fit a
new axle tube using press drift 82 326 and
shank 98 450.

10

Grease the axle tube seal.

11

Insert the drive shaft.

Note: The hole in the drive shaft must be situ-
ated between two of the hub cover’s bolt holes.

12

Fit the hub cover and tighten the bolts to
46 Nm,

Note: Make sure that the hole in the drive shaft
and the hole for the oil plug in the hub cover are
opposite each other.

13

Fill the hub with oil (oil volume 0.7 litres).
See booklet 00:03-09 for the correct grade
of oil.

14

Fit the brake caliper, using lifting tool
99 344.

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Scania CV AB 1998, Sweden

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Fitting the hub

15

Tighten the brake caliper bolts to 400 Nm,
using extension 99 358.

Note: To obtain the correct tightening torque,
make sure that extension 99 358 and the torque
wrench are at right angles (90˚).

16

Fit the brake chamber and tighten the bolts
to 180 Nm.

17

For fitting brake components, see booklet
10:02-10.

18

Fit the wheels. Use the vehicle lifts.

19

Remove the stands and lower the bus to the
ground.