SB1961

SERVICE BULLETIN
SB1961
ADDRESSEES
: All owners and operators of coaches
VEHICLE MODEL
: All coaches
MANUAL CHAPTER
: 01.01 Complete vehicle – General
BULLETIN TYPE
: Service information
DATE
: March 03, 2021
SUBJECT
: What to do in case of prolonged vehicle standstill?
CONDITIONS
: This service bulletin does not entitle to any reimbursement.
INTRODUCTION
This service bulletin provides an overview of works to be performed during prolonged vehicle
standstill.
CHECK VOLTAGE OF 24V ELECTRICAL SYSTEM BATTERIES
We recommend a 3-weekly battery voltage check. Eventually, you can use a trickle charger to
keep your 24V electrical system batteries in optimal condition.
The 24V electrical system batteries of a stored vehicle lose charge due to a phenomenon called
“self-discharge”. This self-discharge proceeds faster at extreme ambient temperatures. After one
month without recharging for instance, the charge can drop to about 50% of the normal value. An
insufficient state of charge over a longer period of time causes an irreparable loss of capacity. To
prevent early battery wear and failure, charge the batteries regularly.
MOVE THE VEHICLE REGULARLY
The vehicle must be moved regularly to avoid permanent deformation (flat sides) of the lower part
of tires. When the tires remain in the same position for a long time, the weight of the vehicle
always presses at the same place. This deforms the tires Van Hool also recommends increasing
the recommended tire inflation pressure by 0,5 bar (7 psi) in the event of prolonged standstill.
TAKE A RIDE OCCASIONALLY
Take an occasional trip to bring the engine to operating temperature. Make sure that the climate
control is on and that all functionalities (heating, cooling, ventilating) are run through by changing
the setting temperature. Among other things, this prevents dehydration of the crankshaft seal of the
refrigerant compressor, since it rotates little or not at all.
Continued on next page.
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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.
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.
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/service,
and only with a code (password) from Van Hool. If you do not have a password yet, request it by
using the above link.
INFORMATION HANDLING:
Important additions and modifications regarding technical information not yet included in the
manual will be communicated through Service Bulletins.
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