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May 7, 2021 Service bulletin

Optimization of 3-speed fan clutch control

Van Hool technical service bulletin SB1997 for 2021 Van Hool TDX25.

Bulletin number
SB1997
Component
Engine and engine cooling: cooling system: fan
Summary
Optimization of 3-speed fan clutch control. FIELD CHANGE PROGRAM: Van Hool has optimized the multiplex program regarding to the 3-speed fan clutch control. This optimization will give a solution for the overheating issues at certain operation conditions. Owners and operators are requested to load the new multiplex program according to the step-by-step instructions given in this service bulletin.

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