Gearbox - Volvo 9700 Manual

Gearbox

Gearbox
This bus has an automated, manual
gearbox with 12 forward gears and 4
reverse gears. Clutch and gear changing
are fully automatic.
The driver can choose to change gear
manually. The gear selector panel is
located in the instrument panel.
The gearbox is supplied with different
software packages. Since certain
functions are optional, not everything in
this description applies to your particular
gearbox.
Starting instructions
Depress the brake pedal and select gear
position neutral. Then select gear
position D, M or R.
Automatic choice of starting gear
The gearbox selects the most suitable
starting gear regarding weight and the
inclination of the road.
If the air pressure to the gearbox is too
low, a symbol and a message are shown
in the driver information display. Wait
until the message clears before driving.
142
Low air pressure to the gearbox.
Parking the bus
CAUTION
Always apply the parking brake and select
the neutral position when the bus is
parked, or whenever the driver leaves the
driver's place.
The engine can only be started when the
gearbox is in neutral. If the engine is
turned off when the air pressure is below
the warning level, without the gearbox in
neutral, the following happens:
• The gearbox cannot be shifted to N
without air pressure
• The engine cannot be started
For assistance contact a Volvo workshop
or Volvo action service.
Clutch
The clutch is of the dry plate type,
without torque converter. Therefore,
ensure to never slip the clutch in too high
gear to start the bus. If the clutch
overheats, a message and a symbol are
shown in the display.
Overheated clutch.
If the message is shown when starting
and the bus is already moving, continue
driving.
If the message is shown when starting
the vehicle and the bus is stationary,
select gear mode D or R. Keep the
engine at idling speed until the message
clears.
When starting in manual mode, choose
1st gear to avoid straining the clutch.
CAUTION
Never keep the bus stationary on an uphill
gradient using the accelerator pedal. The
clutch risks overheating, which can
increase the risk of clutch breakdown.