iTable of Contents1. Product SafetyChapter Overview ................................................... 1-1Basic Precautions ................................................... 1-1Safety Labels ..................................................... 1-1Personal Protective Equipment.......................... 1-1Entering and Exiting ........................................... 1-2Lifting ................................................................. 1-2Hot Fluids and Parts .......................................... 1-2Corrosion Inhibitor ............................................. 1-2Batteries ............................................................ 1-2Pressurized Items .............................................. 1-2Repair ..................................................................... 1-3Attachments ............................................................ 1-4Machine Labels and Decals .................................... 1-4Product ID Number ............................................ 1-4Safety Label Examples ...................................... 1-42. Technical SpecificationsPT-50 Specifications ............................................... 2-1PT-60 Specifications ............................................... 2-23. System DiagramsChapter Overview ................................................... 3-1Filtering and Cooling System .................................. 3-1Auxiliary Circuit System .......................................... 3-2Drive Loop System ................................................. 3-3Electrical Attachment Outlet ................................... 3-34. Machine Controls and InstrumentationChapter Overview ................................................... 4-1Machine Controls .................................................... 4-1Loader Control ................................................... 4-1Drive Control ...................................................... 4-1Throttle .............................................................. 4-1Instrumentation ....................................................... 4-1Switches .................................................................. 4-25. Operator Enclosure Disassemblyand AssemblyChapter Overview ................................................... 5-1Personal Safety ....................................................... 5-1Machine Preparation ............................................... 5-1Operator Enclosure Disassembly and AssemblyProcedures .............................................................. 5-1Light Bar Removal and Installation.......................... 5-1Light Bar Removal ............................................. 5-1Light Bar Installation .......................................... 5-2Ignition Switch Removal and Installation ................. 5-2Ignition Switch Removal .................................... 5-2Ignition Switch Installation ................................. 5-3Gauge Removal and Installation ............................. 5-4Gauge Removal ................................................. 5-4Gauge Installation .............................................. 5-4Lap Bar Gas Assist Spring Removaland Installation ........................................................ 5-5Lap Bar Gas Assist Spring Removal .................. 5-5Lap Bar Gas Assist Spring Installation ............... 5-56. Chassis Disassembly and AssemblyChapter Overview ................................................... 6-1Personal Safety....................................................... 6-1Machine Preparation ............................................... 6-1Chassis Disassembly and AssemblyProcedures.............................................................. 6-1Seat Removal and Installation ................................ 6-1Seat Removal .................................................... 6-1Seat Installation ................................................. 6-2Fuel Sending Unit Removal and Installation ........... 6-2Fuel Sending Unit Removal ............................... 6-3Fuel Sending Unit Installation ............................ 6-37. Radiator/Oil Cooler Disassemblyand AssemblyChapter Overview ................................................... 7-1Personal Safety....................................................... 7-1Machine Preparation ............................................... 7-1Radiator/Oil Cooler Disassembly and AssemblyProcedures.............................................................. 7-1Fan Guard Removal and Installation ....................... 7-1Fan Guard Removal .......................................... 7-2Fan Guard Installation ....................................... 7-2Radiator/Cooler Removal and Installation ............... 7-2Radiator/Cooler Removal .................................. 7-2Radiator/Cooler Installation ............................... 7-48. Hydraulic Reservoir Disassemblyand AssemblyChapter Overview ................................................... 8-1Personal Safety....................................................... 8-1Machine Preparation ............................................... 8-1Hydraulic Reservoir Disassembly and AssemblyProcedures.............................................................. 8-1Filter Element Removal and Installation .................. 8-1Filter Assembly Removal and Installation ............... 8-1Filter Assembly Removal ................................... 8-2Filter Assembly Installation ................................ 8-3Access Cover Removal and Installation .................. 8-4Access Cover Assembly Removal ..................... 8-4Access Cover Assembly Installation .................. 8-4Reservoir Gauge Removal and Installation ............. 8-5Reservoir Gauge Removal ................................ 8-5Reservoir Gauge Installation ............................. 8-6Suction Screen Removal and Installation ............... 8-6Suction Screen Removal ................................... 8-6Suction Screen Installation ................................ 8-7Hydraulic Reservoir Cleaning Procedures ............. 8-7Hydraulic Reservoir Cleaning ............................ 8-7