Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
Bulletin HY25-1396-M1/US
Safety Information
Owner’s Manual
Counter Shaft & Thrushaft
Cold Weather Operation of Powershift P.T.O.s
WARNING:
During extreme cold weather operation [32° F (0° C) and lower], a
disengaged Powershift Power Take-Off can momentarily transmit high torque that will cause
unexpected output shaft rotation. This is caused by the high viscosity of the transmission oil
when it is extremely cold. As slippage occurs between the Power Take-Off clutch plates, the
oil will rapidly heat up and the viscous drag will quickly decrease.
The Power Take-Off output shaft rotation could cause unexpected movement of the driven
equipment resulting in serious personal injury, death, or equipment damage.
To avoid personal injury or equipment damage:
■
Driven equipment must have separate controls.
■
The driven equipment must be left in the disengaged position when not in operation.
■
Do not operate the driven equipment until the vehicle is allowed to warm up.
Rotating Auxiliary Driveshafts
WARNING:
■
Rotating auxiliary driveshafts are dangerous. You can snag clothes, skin, hair, hands, etc.
This can cause serious injury or death.
■
Do not go under the vehicle when the engine is running.
■
Do not work on or near an exposed shaft when the engine is running.
■
Shut off the engine before working on the Power Take-Off or driven equipment.
■
Exposed rotating driveshafts must be guarded.
Guarding Auxiliary Driveshafts
WARNING:
We strongly recommend that a Power Take-Off and a directly
mounted pump be used to eliminate the auxiliary driveshaft whenever possible. If an
auxiliary driveshaft is used and remains exposed after installation, it is the responsibility of
the vehicle designer and P.T.O. installer to install a guard.
This symbol warns of possible personal injury.
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Safety Information
