Increasing Load On The Drive Axle (Bogie Lift); Traction Control System (Tcs) - Volvo 9700 US/CAN 2016 Driver's Handbook Manual

34 Instruments and controls

Increasing load on the drive axle (bogie lift)

The drive axle load is increased by pressing
this switch. Increase in drive axle load is
often an advantage when moving on slippery
surfaces.
Pressing this switch increases the load on the
driving axle by removing the suspension load
on the trailing (non-driving) axle.
The unweighting continues until one of the
following takes place:
•
Speed of the bus rises above 20 mph (30
km/h).
•
The switch is pressed again.

Traction Control System (TCS)

The TCS system automatically reduces the
driving torque of the engine if the drive
wheels start to spin.
At speeds below 25 mph (40 km/h) the TCS
system also acts as an automatic differential
brake, braking the driving wheel that begins
to spin.
For more information, see separate operating
instructions: "EBS system".
CAUTION
Turn off the TCS before towing. Failure to
do so may result in damage to the system
components.
T0012046
Switch on the dashboard.
Tag axle lift.
T0012059
T6009559