Idling (Programming) - Volvo 9700 US/CAN Driver's Handbook Manual

88 Starting and Driving

Idling (programming)

The engine idling speed is 575–625 rpm.
Keeping the idling speed constant is the task
of the electronic control system, which makes
manual adjustment unnecessary. When the
bus is stationary, the idling speed can be
temporarily raised to 1200 rpm.
Low Idle Adjustment
Before you start to adjust the idling speed,
the engine must be warmed up to operating
temperature. The bus must be stationary with
the engine idling.
•
switch (B) must be in the ON position
•
the idling speed is increased by pressing
the "+" side of the SET button (A). Each
press on this button gives an increase of
10 rpm.
•
if the idling speed becomes too high, it can
be reduced by pressing the "–" side of the
SET button. Each press gives a decrease
of 10 rpm.
Note: The change in idling speed is only
temporary. After pressing a pedal, engaging a
gear or releasing the parking brake, the idling
speed will return to its manufacturer settings.
If new programming of idling rpm is required,
keep your foot on the brake pedal and turn
off the engine when the new engine rpm has
been set.
Note: If the engine does not "run smoothly" at
the default programmed by the manufacturer,
please visit a Volvo workshop.
T0012078