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the gear teeth. This may damage the PTO unit and the transmission PTO
drive gear teeth, resulting in further damage to the transmission and
PTO.
PTO Operation with Vehicle Stationary
WARNING: When the PTO is operated with the vehicle
stationary, the transmission must be placed in position N with the
parking brake set. If the transmission is not in position N and is
equipped with a remote throttle control, an increase in engine speed
can overpower the parking brake and cause the vehicle to move,
possibly resulting in personal injury and/or property damage.
Stop your vehicle, idle the engine and set the parking brake. Make sure
the gear selector is in any forward drive range, and then engage the
PTO. After engaging the PTO, move the range selector to position N.
Increase the engine speed until reaching the desired PTO operation
speed. To disengage the PTO after operation with your vehicle standing,
release the throttle, allow the drive equipment to come to a stop, and
then disengage the PTO.
PTO Operation while Vehicle Is Moving
After engaging the PTO for driven vehicle operation, shift to the desired
range and drive your vehicle. The speed of the PTO, during this period
of operation, always maintains direct relation to vehicle speed. PTO
speed decreases in relation to vehicle (transmission output) speed as
shifts to a higher gear occur. When operating the PTO while your vehicle
is moving, the PTO may be disengaged whenever it is no longer required.
When there is no load on the PTO gear, you can pull it out of
engagement.
Vehicles Equipped with an Allison 3000 Series Automatic
Transmission
The PTO drive gear is engine-driven and provides direct engine power.
You can operate the PTO when your vehicle is either stationary or
moving. The PTO gear is in constant mesh with the drive gear in the
torque converter housing. A friction clutch or constant drive transmits
power to the PTO.
Vehicles Equipped with a Manual Transmission
Transmission-mounted PTO units are available for local installation on
your vehicle. See your Body Builder's Layout Book for restrictions on
use and installation of PTO units.
2015 F-650/750 (f67)
Owners Guide gf (ownloose), 1st Printing, December 2013
Canadian_French (fr_can)
Transmission
I n f o r ma t i o n P r o v i d e d b y :
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