Bulletin HY25-1900-M1/USParker Hannifin CorporationChelsea Products DivisionOlive Branch, MS 38654 USAOwner’s ManualLegacy Split Shafts and Gear Box1General InformationThis symbol warns of possible personal injury.ForewordThis booklet will provide you with information on correct installation of Chelsea® Power Take-Offs (PTOs). Properinstallation and set up procedures will help you get additional and more profitable miles from your truck equipmentand components.It is important that you be sure that you are getting the right transmission/PTO combination when you ordera new truck. An inadequate transmission will overwork any PTO in a short period of time. In addition, amismatched transmission and PTO combination can result in unsatisfactory performance of your auxiliary powersystem from the start.If you have questions regarding correct PTO and transmission combination, please contact your localChelsea® Auxiliary Power Specialist. They can help you select the properly matched components to ensure correctand efficient applications.Safety InformationThese instructions are intended for the safety of the installer, operator & supporting personel. Read them carefullyuntil you understand them.General Safety InformationTo 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 resultin getting caught in the moving machinery.Proper Matching of PTOWARNING: A Power Take-Off must be properly matched to the vehicle transmission and to the auxiliaryequipment being powered. An improperly matched Power Take-Off could cause severe damage to the vehicletransmission, the auxiliary driveshaft, and/or to the auxiliary equipment being powered. Damaged componentsor equipment could malfunction causing serious personal injury to the vehicle operator or to othersnearby.To avoid personal injury and/or equipment damage:■ Always refer to Chelsea catalogs, literature, and owner’s manuals and follow Chelsea recommendations whenselecting, 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 bepowered.■ Never use a Power Take-Off whose range of speed could exceed the maximum.