Power Take-Off - Volvo FM Handbook

176 Driving
DAS detects most cases where the driver's
concentration on driving is detracted, e.g. due to
tiredness or poor concentration. To increase safety
even more the Lane Keeping Support should be
activated.
Calibration
The system occasionally requires automatic
calibration. This may be when the truck is started for
the first time or
after a workshop visit. When calibration is necessary,
it is started automatically as soon as the speed is
sufficient and
the road markings are sufficiently distinct, irrespective
of the system being active or inactive. The calibration
takes about 20 minutes, but
the system functions already after 5–7 minutes.

Power take-off

General
One differentiates between Power Take-Offs that are
mounted on engines, flywheels and gearboxes. A PTO
mounted on a flywheel is called a clutch-dependant
PTO.
All power take-off is disengaged when the engine is
switched off with the starter key, when the power take-
off is engaged. When the engine is started the next
time the power take-off is disengaged despite the fact
that the switch is on. Turn the switch off before the
power take-off is engaged again. If the engine is
switched off remotely, the power take-off will not be
disconnected, and will remain connected when
restarting.
On ADR vehicles, the parking heater will not start if
the power take-off is engaged. The parking heater is
turned off if it is on when the power take-off is
engaged.