NHTSA ID Number: 10168579
Manufacturer Communication Number: SB1634
TSB/Document Date: 2019-12-02
Summary
Product Improvement. Introduction of new single check valves in cooling-circuits deaeration lines.Van Hool have recently switched over into production a new type of single check valve. Contrary to the previous type equipped with a plastic housing, the new type comprises an aluminium housing. Because of this, they are better suited to resist higher coolant temperatures. As the new type can also be used on previoulsy sold vehicles, only the new type will be available as a spare part. This service bulletin applies to All Van Hool Vehicles.
SERVICE BULLETIN
SB1634
ADDRESSEES
: Owners and operators
VEHICLE MODEL
: All vehicles
MANUAL CHAPTER
: 02.46 Traction motor - Engine cooling
BULLETIN TYPE
: Product improvement
DATE
: November 07th, 2019
SUBJECT
: Introduction of new single check valves in coolingcircuits deaeration lines
CONDITIONS
: This Service Bulletin does not entitle to any reimbursement.
APPLICATION:
The product improvement, subject of this bulletin, applies to all vehicles.
DESCRIPTION:
Van Hool have recently switched over into production to a new type of single check valve. Contrary
to the previous type equipped with a plastic housing, the new type comprises an aluminium
housing. Because of this, they are better suited to resist higher coolant temperatures.
As the new type can also be used on previously sold vehicles, only the new type will be available
as a spare part.
COMPONENTS:
Figure 1: Single check valve 10874791 is
replaced by 11662333
Figure 2: Single check valve 10874794 is
replaced by 11662334
Continued on next page.
SB1634_USA_en_2019-11-07
Page 1 of 2
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.
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, but
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.
SB1634_USA_en_2019-11-07
Page 2 of 2
- Contains Alugard Plus for compatibility with all ethylene...
- Fights corrosion, scaling and rust while protecting all...
- High-quality additives protect against leaks and won’t...
- Pre-mixed yellow formula is ready-to-use in a 50/50 ratio...
- Contains 30 – 50 ppm of denatonium benzoate as a bittering...
- 5 year/150, 000 mile . Silicate-free, long-life, phosphate...
- Formulated to replace the OEM fluid in Asian make vehicles...
- The long life formula provides protection for all cooling...
- Meets the following OEM and industry specifications...
- Contains 30 – 50 ppm of denatonium benzoate as a bittering...
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TSB/Document ID: SB1634
Replacement Service Bulletin Number:
MFR Communication Date: 2019-12-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT ADAPTIVE/MOBILITY
MFR Component System:
MFR Component Subsystem:
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