SERVICE BULLETIN
SB1328
ADDRESSEES

: Owners and operators of coaches mentioned under
"Application"

VEHICLE MODEL

: T2140, T2145, C2045, CX45, TX40, TX45, TD925US,
TDX25US

MANUAL CHAPTER

: 12.10 Drive axle – Hub
12.14 Trailing axle – Hub (TD925US 10-wheeler only)

BULLETIN TYPE

: Service information

DATE

: March 4th, 2016

SUBJECT

: DANA wheel bearing end-play

TERMS & CONDITIONS

: This service bulletin does not entitle to any reimbursement.

APPLICATION:
Model
T2140
T2145

C2045
CX45
TX40
TX45
TD925US
TDX25US

VIN
40148Æ40173
40611Æ40644
44123Æ44418
43991Æ43999
44501Æ44800
44801Æ44857
44901Æ44961
45896Æ48132
48200Æ48960
48967Æ48982
41200Æ41216
41100Æ41421
41454Æ41461
All
42800Æ42898

INTRODUCTION
DANA, manufacturer of axles, has informed Van Hool that the procedure for checking the wheel
bearing end-play has been changed. This change is related to the following axles:
•
•
•

DANA 11.36 drive axle with “unitized” wheel bearings
DANA G171 drive axle with “unitized” wheel bearings
VAN HOOL trailing axle with DANA hub (TD925US 10-wheeler only)

The change is NOT related to DANA drive axles with ordinary wheel bearings (refer to figure 2).

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Visual identification of axle end

Axle end with “unitized” wheel bearings

Figure 1

Axle end with ordinary wheel bearings
(recognizable by the oil filling/checking plug in
the hub)

F05009

Figure 2

INTERVAL FOR CHECKING WHEEL BEARING END-PLAY
•
•

Vehicles covering less than 50 000 miles (80 000 km) a year: once a year
Vehicles covering more than 50 000 miles (80 000 km) a year: every 50 000 miles (80 000 km)
or every 6 months, what first comes

Also carry out this check after working on the brakes or any other component of the axle end.

ADMISSIBLE WHEEL BEARING END-PLAY
Admissible end-play in case of new bearings
End-play
Action
0 inch (0 mm)
End-play OK. No further action required.
more than 0 inch (0 mm)
Tighten the hub nut to the prescribed torque. Then check the
wheel bearing end-play once again. If the wheel bearing endplay is still more than 0 inch (0 mm), this means that the hub is
damaged and that you have to change the hub together with
the wheel bearing.
Admissible end-play in case of used bearings
End-play
Action
between 0 and 0.002 inch
End-play OK. No further action required.
(between 0 and 0.05 mm)
between 0.002 and 0.008 inch Tighten the hub nut to the prescribed torque. Then check the
(between 0.05 and 0.2 mm)
wheel bearing end-play once again. If the wheel bearing endplay is still more than 0.002 inch (0.05 mm), you have to
change the wheel bearing.
more than 0.008 inch
Change the wheel bearing.
(more than 0.2 mm)
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SB1328_USA_en_2016-03-04

TO CHECK WHEEL BEARING END-PLAY
Preparation
•

•
•
•
•

Park the vehicle over a flat inspection pit, with the front wheels in the straight-ahead position.
Apply the parking brake. Stop the engine. Switch off all systems and turn off the battery
isolation switch on the dashboard. When using mobile column lifts (for vehicles with 3 axles:
always use six mobile column lifts) instead of an inspection pit, always lower the suspension
first.
Open the mechanical battery isolation switch.
Put a "DO NOT START" warning message on the instrument panel before starting the checks
or repairs.
Put chocks in front of and behind the wheels.
Read the entire procedure before starting to work.

WARNING!
Observe safe shop practices at all times.

Procedure to check wheel bearing end-play
Step
1
2
3

Action
Release the parking brake.
Jack up the axle until the wheels clear the ground.
Give the wheel a couple of turns in both directions to allow the wheel bearings to
settle.

4

CAUTION!
Once the dial indicator gauge has been set to zero, it is no longer
permitted to turn the wheel. Neither should you touch the stylus of the dial
indicator gauge any more.

5

6

7
8
9

Place a dial indicator gauge with a magnetic stand on the axle housing (on trailing
axle of TD925US 10-wheeler: on steering knuckle). Position the stylus of the dial
indicator gauge against the inside of the brake disc. Now set the dial indicator
gauge to zero.
Grab the wheel halfway its height and push it straight towards the inside as far as it
will go. At the same time, have an assistant make a note of the displacement of the
dial indicator gauge.
Hands still halfway its height, now pull the wheel towards the outside as far as it will
go. At the same time, have an assistant make a note of the displacement of the dial
indicator gauge.
The difference between the two measured displacements represents the wheel
bearing end-play at that side.
Repeat steps 5 and 6 until you obtain two consecutive reliable measurements.
Compare the measured end-play with the maximum permissible value mentioned in
the text.
Repeat this procedure for the other side of the vehicle.

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Procedure to tighten hub nut on a DANA drive axle
Step
1
2

Action
Remove the axle shaft.

CAUTION!
Not fully undoing the staking of the hub nut can lead to damage of the
thread of the axle spindle when tightening the hub nut further on in the text.
3
4
5
6
7
8

With a pointed tool, fully undo the staking of the hub nut.
Tighten the hub nut to a torque of 700 ± 35 ft.lbf (950 ± 50 Nm).
Recheck the wheel bearing end-play.
Lock the hub nut by staking its collar in the groove of the axle spindle.
Clean the contact surfaces between the axle shaft and the hub.
Apply Loctite 518 to the contact surfaces between the axle shaft and the hub.
Slide the axle shaft into the axle housing. Mount the fixing screws of the axle shaft
and tighten the screws to a torque of 245 ± 10 ft.lbf (330 ± 15 Nm).

Procedure to tighten hub nut on a VAN HOOL trailing axle (TD925US 10-wheeler only)
Step
1
2

Action
Remove the hub cover.

CAUTION!
Not fully undoing the staking of the hub nut can lead to damage of the
thread of the steering knuckle spindle when tightening the hub nut further on
in the text.
3
4
5
6
7
8

With a pointed tool, fully undo the staking of the hub nut.
Tighten the hub nut to a torque of 700 ± 35 ft.lbf (950 ± 50 Nm).
Recheck the wheel bearing end-play.
Lock the hub nut by staking its collar in the groove of the steering knuckle spindle.
Clean the contact surfaces between the hub cover and the hub.
Apply Loctite 518 to the contact surfaces between the hub cover and the hub.
Install the hub cover and tighten screws to a torque of 245 ± 10 ft.lbf (330 ± 15 Nm).

Continued on next page
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SB1328_USA_en_2016-03-04

INFORMATION HANDLING
Important additions and modifications regarding technical information not yet included in the
manual will be communicated through Service Bulletins.

VAN HOOL CUSTOMER PORTAL:
Consult the Van Hool customer portal for the latest service documentation. Beside the
maintenance manual, you will also find the operating manual and the spare parts catalogue of your
vehicle on the customer portal. The customer portal is accessible through www.vanhool.be, and
only with a code (password) from Van Hool. If you do not have a password yet, request it by using
the link on the Van Hool website.

SB1328_USA_en_2016-03-04

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