Bulletin HY25-1380-M1/US
Owner’s Manual
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
2
General Information
10-Bolt Powershift P.T.O.s
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.
Using Set Screws
WARNING: Auxiliary driveshafts may be installed with either recessed or protruding set screws.
If you choose a square head set screw, you should be aware that it will protrude above the hub of
the yoke and may be a point where clothes, skin, hair, hands, etc. could be snagged. A socket head
set screw, which may not protrude above the hub of the yoke, does not permit the same amount of
torquing as does a square head set screw. Also, a square head set screw, if used with a lock wire, will
prevent loosening of the screw caused by vibration. Regardless of the choice made with respect to a
set screw, an exposed rotating auxiliary driveshaft must be guarded.
Important: Safety Information and Owner’s Manual
Chelsea Power Take-Offs are packaged with safety information decals, instructions, and an owner’s
manual. These items are located in the envelope with the P.T.O. mounting gaskets. Also, safety infor-
mation and installation instructions are packaged with some individual parts and kits.
Be sure to read
the owner’s manual before installing or operating the P.T.O. Always install the safety information
decals according to the instructions provided. Place the owner’s manual in the vehicle glove compart-
ment.
WARNING: Operating the P.T.O. with the Vehicle in Motion
Some Power Take-Offs may be operated when the vehicle is in motion. To do so, the P.T.O. must have
been properly selected to operate at highway speeds and correctly matched to the vehicle transmission
and the requirements of the driven equipment.
If in doubt about the P.T.O. specifications and capabilities, avoid operating the P.T.O. when the vehicle
is in motion. Improper application and/or operation can cause serious personal injury or premature
failure of the vehicle, the driven equipment, and/or the P.T.O.
Always remember to disengage the P.T.O. when the driven equipment is not in operation.
Pump Installation Precautions
Use a bracket to support the pump to the transmission if:
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The pump weighs
40 pounds [18.4 kg] or more.
■
The combined length of the P.T.O. and pump is
18 inches [45.72 cm] or more from the P.T.O.
centerline to the end of the pump.
This symbol warns of possible personal injury.
Safety Information (Continued)
