Dual Driver Stations; Auxiliary Brakes; Actions With Gearbox Malfunction; Reversing With Loads - Volvo FM Handbook

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212 Powertronic

Dual driver stations

(Option)
On vehicles with dual driver stations, the gear shift
lever in the ordinary driver position must be in N,
neutral, to be able to drive from the second driver
position.

Auxiliary brakes

The auxiliary brakes also work in reverse.

Actions with gearbox malfunction

An "L" in the display indicates that two of three
datalinks to the engine are open circuit. The
Powertronic system then activates Limp home. This
function makes it possible to drive short distances,
with a fault in the vehicle, for example to the nearest
service workshop.
When Limp home is activated, only manual gear
changing is possible. When the gear shift lever is in
position M or R, the driver can change gear using the
+/– button.
Power take-offs are shut off automatically when
Limp home is activated. It is possible to re-engage it as
long as the engine speed is kept below 1000 rpm. All
special functions on the vehicle will be terminated and
cannot be activated.
Limp home will be disengaged automatically once the
fault has been rectified.

Reversing with loads

When reversing down steep inclines with a loaded
vehicle at low speed, there is a risk that the front
wheels lock if the service brake is used for regulating
the speed. By using the engine and torque convertor,
the driving wheels can be braked instead. Use the
Note!
The accelerator pedal must be
released before changing gear so that
the engine torque is reduced. This
also applies when engaging the lock-
up function.
Note!
The auxiliary brakes must be turned
off when changing down.

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