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STARTING AND DRIVING
PTO
Power Take-Off
DANGER
A Rotating PTO shaft can snag clothes,
hands, etc., causing severe personal injury
or death. To avoid injury or death:
•
Do NOT go near rotating shafts when
the engine is running.
•
STOP the engine before attempting to
work on a PTO, its controls or related
equipment.
CAUTION
It is important to only engage the switch
when the PTO is required. Leaving the
PTO pump engaged when not needed can
lead to poor performance and pump
damage.
NOTE
Some PTOs cannot be operated while
driving the vehicle. To do so will cause
component damage.
To avoid component damage, contact a
certified dealer to confirm if the vehicle's
PTO can be used while driving.
A Power Take-Off (PTO) is a device that
delivers power from the engine to
another piece of equipment attached to
the vehicle. Some examples include
cement mixers and the compactor on a
garbage truck.
A maximum of four PTOs can be
operated in unison. One PTO is preset
as a priority component. The remaining
PTOs are preset as secondary, third or
fourth in priority. The priority settings are
dependent on the PTO preset
arrangement and the number of PTOs
available.
There are three basic types of PTOs
available: engine-mounted,
transmission-mounted, and drive shaft-
mounted.
The transmission-mounted PTO is
clutch-dependent, which means that
operation can be regulated by
depressing or releasing the clutch pedal.
If the vehicle has an automatic
transmission the PTO operation and
speed adjustment is controlled via an
interior switch.
Depending on customer specification,
some transmission-mounted PTOs are
not operable when driving the vehicle.
The engine-mounted PTO is direct-
mounted to the engine and is engaged
with a bypass valve operated by an
internal switch.
The drive shaft-mounted PTO consists
of an additional gearbox that divides the
drive shaft into two shafts. One shaft
drives the vehicle's axle. The other shaft
drives the PTO.
When the PTO is engaged the PTO tell-
tale displays in the instrument cluster.
PTO Tell-Tale
Use the following switch to activate/
deactivate the PTO.
PTO Switch
Transmission-Mounted PTO
The transmission-mounted PTO is
clutch-dependent, which means that
operation can be regulated by
depressing or releasing the clutch pedal.
For manual transmissions:
170
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Содержание M359
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