Differential Lock; Hill Start Assistance (Optional) - Volvo 9700 US/CAN 2016 Driver's Handbook Manual

Differential lock

Differential lock allows drive axle shafts to
be connected together. The wheels then rotate
at the same speed, which makes driving on
slippery surfaces easier.
The differential lock is only to be used on
slippery surfaces. Engage as soon as the bus
is on the slippery surface. It can be coupled
in during driving, at any speed, but will not
actually engage until the bus is travelling at
less than 10 mph (15 km/h).
Note: Do not forget to disengage the
differential lock when you have left the
slippery surface! For more information, see
separate driver instructions "EBS system".
CAUTION
The differential lock is only to be used on
slippery surfaces. Other uses may result in
damage to the drive axle.

Hill start assistance (optional)

The Volvo 9700 US/CAN bus may be
equipped with the hill start assistance
function. This function helps the driver to
pull away on inclines by holding the bus still
until the required torque at the wheels is
applied.
This function's mode of operation depends on
whether the bus is equipped with a manual or
automatic transmission.
For more information, see separate operating
instructions: "EBS system".
Note: This function not apply in buses
equipped with Allison transmission.
Instruments and controls 35
3 stage switch for the manual/automatic
coupling of the differential lock.
T0012041
T0012045