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Deere 4050, 4250, 4450 Tractors All Inclusive Technical Service Manual (tm1353)
Illustrated Factory Technical Manual for John Deere 2WD or MFWD Tractors

This manual contains high quality images, circuit diagrams, instructions to help you to maintenance, troubleshooting, diagnostic, and repair your truck. This document is printable, without restrictions, contains searchable text.

Language: English
Format: PDF, 1671 pages;

Covered models:
  4050
  4250
  4450

This technical manual was formerly TM-1257, The number was changed to TM-1353 when engine information was removed. Some pages still carry the old publication number. For engine information, refer to engine component technical manual, CTM-1, 6466 Engines or to CTM-4, 6359 Engines. This machine technical manual covers removal and installation of the engine components. The component manual covers basic repair of the engine. For main hydraulic pump repair information, refer to component technical manual, CTM-7, Radial Piston Pumps.

Contents:
   SECTION 10GENERAL
       Group 05Predelivery, Delivery and After-Sale Services
       Group 10Tune-up
       Group 15Lubrication
   SECTION 15SEPARATION
       Group 05Front Axle
       Group 10Front-End
       Group 15Front-End and Engine
       Group 20Engine
       Group 25SOUND-GARD® body and ROLL-GARD® Protective Structure
       Group 30Power Shift Clutch Housing
       Group 31QUAD-RANGE Clutch Housing
       Group 35Transmission
       Group 40Final Drives
       Group 41Hi-Crop Final Drives
   SECTION 20ENGINE
       Group 05Acquire Access to Cylinder Head, Valves and Camshaft
       Group 10Acquire Access to Cylinder Block, Liners, Pistons and Rods
       Group 15Acquire Access to Crankshaft, Main Bearings and Flywheel
       Group 20Acquire Access to Lubrication System
       Group 25Remove/Install Cooling System
   SECTION 30FUEL AND AIR SYSTEM
       Group 05Acquire Access to Air Intake System
       Group 10Acquire Access to Diesel Fuel System
       Group 15Speed Control Linkage
   SECTION 40ELECTRICAL
       Group 05Harness Replacement
       Group 06Connector Repair
       Group 10Remove/Install Delco-Remy Charging Circuit
       Group 11John Deere Charging Circuit Repair
       Group 15Starting Circuit Replacement
       Group 25Lighting Circuit Repair
       Group 30INVESTIGATOR II Warning System and Digital Tachometer Repair
       Group 31Gauge Cluster Instrumentation Repair
       Group 32Analog Tachometer Repair
       Group 35Accessories Circuit Repair
   SECTION 50POWER TRAINPERMA CLUTCH TRANSMISSION
       Group 05Remove/Install Clutch Oil Pressure Valve Housing
       Group 10Clutch Oil Pressure Regulating Valve Housing
       Group 15Clutch Operating Piston Housing
       Group 20PERMA CLUTCH
       Group 304050 and 4250 QUAD-RANGE Planetary
       Group 314450 QUAD-RANGE Planetary
       Group 35Eight-Speed Transmission & Charge Pump
       Group 45Shift Lever Assembly
       Group 55PTO Gear Train (without MFWD)
       Group 56PTO Gear Train (with MFWD)
       Group 60Adjust PTO Clutch Rod
       Group 654050 (Trans. Serial No. -006643) Differential
       Group 664050 (Trans. Serial No. 006644- ), 4250 and 4450 Differential
       Group 70Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
       Group 75Differential Lock Valve
       Group 80Final Drive
       Group 85Hi-Crop Final Drive
       Group 90MFWD Gear Train and Clutch
       Group 95MFWD Axle
   SECTION 55POWER TRAINPOWER SHIFT TRANSMISSION
       Group 05Remove/Install Traction Clutch Valve Housing
       Group 10Traction Clutch Valve Housing
       Group 15Remove/Install Transmission Control Valve Housing
       Group 20Transmission Control Valves
       Group 25Remove/Install Traction Clutch
       Group 30Traction Clutch and Drive Shafts
       Group 35Input Planetary
       Group 40Reduction Gear Train
       Group 454050 and 4250 Output Planetary
       Group 464450 Output Planetary
       Group 50Speed Selector Assembly
       Group 55Charge Pump Assembly
       Group 60PTO Gear Train with MFWD
       Group 61PTO Gear Train without MFWD
       Group 65Adjust PTO Clutch Rod
       Group 704050 (Trans. Serial No. -002724) Differential
       Group 714050 (Trans. Serial No. 002725- ), 4250 and 4450 Differential
       Group 75Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
       Group 80Differential Lock Valve
       Group 85Final Drive
       Group 90Hi-Crop Final Drive
       Group 95MFWD Gear Train
       Group 100MFWD Clutch
       Group 105MFWD Axle and Final Drive
   SECTION 60STEERING/BRAKES
       Group 05Remove/Install Power Steering Components
       Group 10Steering Column
       Group 15Metering Pump
       Group 20Steering Valve
       Group 25Steering Motor
       Group 26Dual Piston Steering Motor
       Group 30Steering Assist Cylinders (MFWD)
       Group 35Remove/Install Brake Valve and Brake Accumulator
       Group 40Brake Valve
       Group 45Brake Accumulator
       Group 50Bleeding Brakes and Testing Brake Accumulator
       Group 55Brake Pistons, Plates and Disks
   SECTION 70HYDRAULICS
       Group 05Remove/Install Main Hydraulic Pump
       Group 15Oil Filter Relief Valve Housing (QRT)
       Group 20Return Oil Filter Relief Valve Housing (PST)
       Group 25Remove/Install Attenuator
       Group 30Hydraulic Attenuator
       Group 35Remove/Install HYDRACUSHIONED Seat Valve
       Group 40Repair HYDRACUSHIONED Seat Valve Assembly
       Group 45Pressure Control Valve
       Group 50Remove/Install Rockshaft Components and Adjust Lift Assist Cylinders
       Group 55Rockshaft Components
       Group 60Lift Assist Cylinders
   SECTION70HYDRAULICSContinued
       Group 65Draft Sensing Components
       Group 70r-Hitch Components
       Group 75Remove/install SCV Coupler & Levers
       Group 80SCV and ISO Coupler
       Group 85Remote Cylinder
       Group 90Hydraulic Oil Cooler and Thermal Bypass Valve
       Group 95Transmission-Hydraulic System Cleanup Procedure
   SECTION 80MISCELLANEOUS
       Group 05Rear Wheels
       Group 10Front Axle
   SECTION 90OPERATOR STATION
       Group 05Air Conditioning System
       Group 06Air Conditioning System Service
       Group 10Heating System
       Group 15Seat
   SECTION 95MISCELLANEOUS OPTIONS
       Group 40Auxiliary Lighting and Electrical Components
       Group 45Digital Tachometer Ground Speeds
       Group 62Auxiliary Trailer Brake
       Group 63Secondary Brake
       Group 80Minor Options
       Group 85Auxiliary Steering System
   SECTION 99SPECIAL TOOLS