Bulletin HY25-1890-M1/US
Owner’s Manual
10-Bolt Extended Shaft PTOs
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
1
This symbol warns of possible personal injury.
Foreword
This booklet will provide you with information on correct installation of Chelsea
®
Power Take-Offs (PTOs). Proper
installation and set up procedures will help you get additional and more profitable miles from your truck equipment
and components.
It is important that you be sure that you are getting the right transmission/PTO combination when you order
a new truck. An inadequate transmission will overwork any PTO in a short period of time. In addition, a
mismatched transmission and PTO combination can result in unsatisfactory performance of your auxiliary power
system from the start.
If you have questions regarding correct PTO and transmission combination, please contact your local
Chelsea
®
Auxiliary Power Specialist. They can help you select the properly matched components to ensure correct
and efficient applications.
Safety Information
These instructions are intended for the safety of the installer, operator & supporting personnel. Read them carefully
until you understand them.
General Safety Information
To prevent injury to yourself and/or damage to the equipment:
■ Read carefully all owner’s manuals, service manuals, and/or other instructions.
■ Always follow proper procedures, and use proper tools and safety equipment.
■ Be sure to receive proper training.
■ Never work alone while under a vehicle or while repairing or maintaining equipment.
■ Always use proper components in applications for which they are approved.
■ Be sure to assemble components properly.
■ Never use worn-out or damaged components.
■ Always block any raised or moving device that may injure a person working on or under a vehicle.
■ Never operate the controls of the Power Take-Off or other driven equipment from any position that could result
in getting caught in the moving machinery.
Proper Matching of PTO
WARNING: A Power Take-Off must be properly matched to the vehicle transmission and to the auxiliary
equipment being powered. An improperly matched Power Take-Off could cause severe damage to the vehicle
transmission, the auxiliary driveshaft, and/or to the auxiliary equipment being powered. Damaged components
or equipment could malfunction causing serious personal injury to the vehicle operator or to others
nearby.
To avoid personal injury and/or equipment damage:
■ Always refer to Chelsea catalogs, literature, and owner’s manuals and follow Chelsea recommendations when
selecting, installing, repairing, or operating a Power Take-Off.
■ Never attempt to use a Power Take-Off not specifically recommended by Chelsea for the vehicle transmission.
■ Always match the Power Take-Off’s specified output capabilities to the requirements of the equipment to be
powered.
■ Never use a Power Take-Off whose range of speed could exceed the maximum.
General Information
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