2021 Van Hool TDX25 Optimization of 3-Speed Fan Clutch Control

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SB1997_USA_en_2021-05-07 Page 1 of 3
ADDRESSEES : Owners and operators of coaches listed under “Application”
ABC Customer Care and Parts Source
VEHICLE MODEL : TDX25 US vehicles with Cummins X12 engine
MANUAL CHAPTER : 02.34 Engine cooling – Fan clutch control
BULLETIN TYPE : Field change program
DATE : May 07th, 2021
SUBJECT : Optimization of 3-speed fan clutch control
CONDITIONS : Refer to chapter “Warranty” further on in this bulletin.
APPLICATION
The Field Change Program, subject of this bulletin, is applicable to following vehicles:
Vehicle type VIN
TDX25 US 42954
42989
8916689185
8919189200
8920289248
Van Hool apologises for the inconvenience caused by this field change program and wishes to
thank you in advance for your cooperation.
WHERE DO YOU FIND THE NEW PROGRAM?
The program 11647415 (version 30) is available through the Van Hool customer portal under the
“Software” section.
JOB QUALIFICATION
This task has to be carried out by an experienced automotive technician, trained in the operations
at hand.
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SERVICE BULLETIN
SB1997
SB1997_USA_en_2021-05-07 Page 2 of 3
PREPARATIONS
 Park the vehicle on a level floor.
 Apply the parking brake.
 Stop the engine.
 Switch off all systems and turn off the battery isolation switch on the dashboard.
 Put a “DO NOT START” warning message on the instrument panel before starting the checks
or repairs.
 Read the entire procedure before starting to work.
WARNING!
Observe safe shop practices at all times.
PROCEDURE:
Step Action
1 Download the new multiplex program as described in chapter 11.1 “Multiplex system”
of the maintenance manual.
2 Notify ABC Companies by mail. Write the text “SB1997 executed for VIN…..” in the mail
and send the mail to warranty@abc-companies.com.
3 For ABC Companies only: register through the registration button located behind
service bulletin SB1997 on the Van Hool customer portal. Write the text “SB1997
executed”” in the field “Remark”. Labor allowance will only be awarded after Van Hool
has received the registration.
End of procedure.
HELP DESK:
If there are any questions, please call ABC Customer Care & Parts Source toll-free for guidance on
1-877-427-7278. Listen for the prompts for warranty and select that option.
WARRANTY
1. Conditions
Van Hool accepts claims for this conversion as follows:
Parts
 Parts supply: none
 Parts evacuation: only evacuate unused parts and pollutants in accordance with the law.
Check with the environmental authorities to ascertain the rules in force in your country (or
region).
Labor hours allowance: 30 minutes
Campaign expiration date: Service bulletin issue date + 1 year
2. Claim references:
Job code: O61997N
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SB1997_USA_en_2021-05-07 Page 3 of 3
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DISCLAIMER:
The procedures contained herein are not exclusive. Van Hool cannot possibly know, evaluate, or
advise the transportation industry of all conceivable ways in which a procedure may be undertaken
or of the possible consequences of each such procedure. Other procedures may be as good, or
better, depending upon the particular circumstances involved. Each carrier who uses the
procedures herein must first satisfy itself thoroughly that neither the safety of its employees or
agents, nor the safety or usefulness of any products, will be jeopardized by any procedure
selected.
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 customer portal regularly for the latest service documentation. In addition to 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.

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