Terex PT-50 Service Manual
Also see for PT-50: Operation and maintenance manual
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Contents
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Chapter OverviewThis chapter provides disassembly and assembly pro-cedures for the loader and transmission controls.Personal SafetyImproper or incomplete maintenance/repair of a RubberTrack Loader can be dangerous and may result in ma-chinedamage, injury or death.Do not attempt to perform any type of repair or mainten-anceon a Rubber Track Loader until you have read and fullyunderstood the information in this manual. Refer to theOperation and Maintenance manual for in-structions regard-ing proper machine operation techniques before operatingany Rubber Track Loader.Prior to performing any type of service work on a RubberTrack Loader, read and understand Chapter 1 (ProductSafety) for personal safety information.Machine PreparationAccidental machine starting can cause injury or death to per-sonnel working on a Rubber Track Loader.As a precaution, disconnect the battery cables from the bat-tery terminals, tape the battery clamps and remove the keyfrom the ignition switch prior to per-forming any service workon a Rubber Track Loader.Place a “Do Not Operate” tag prominently on the machine toinform personnel that the machine is be-ing worked on.Loader/Transmission ControlsDisassembly and AssemblyProceduresDisassembly and assembly procedures are providedfor the following loader/transmission control compo-nents.• Drive Control Joystick• Loader Control Joystick• Loader Float Magnet• Loader Valve• Self Level ValveNote: Procedures are provided for only thoseloader/transmission control components listed above.However, information for removal and installation ofother loader/transmission control components can beobtained from the Rubber Track Loader Parts manual.Note: Refer to Figure 3-2 for an overview of the auxil-iary circuit system and Figure 3-3 for an overview ofthe drive loop system.Loader Control Joystick/DriveControl Joystick Removal andInstallationThere are two joysticks that control the operation of themachine: a drive control joystick and a loader controljoystick.Drive Control Joystick Operation – The left-handjoystick controls the speed and direction of the ma-chine. The further the joystick is pushed, the faster themachine travels. The joystick operates on hy-drauliccharge pressure. When the joystick is moved, oil issent to the hydrostatic transmission. The transmissionthen delivers oil, in the correct amount, to the drivemotors.9. Loader/Transmission ControlsDisassembly and Assembly9-1 |
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