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Part of the John Deere Repair Manuals.
This is the complete John Deere factory repair manual (TM104319) for the 8225R, 8245R, 8270R, 8295R, 8320R and 8345R row-crop tractors. Across 1,973 pages it walks a technician through every major system on the machine: removing and rebuilding the PowerTech 9.0L diesel with Denso high-pressure common-rail fuel injection, servicing both the 16-speed PowerShift and the infinitely variable AutoPowr/IVT transmission, repairing the rear differential and final drives, overhauling the 1300 and 1500 series MFWD axles and the Independent Link Suspension front axle, and tracing the full wiring harness with connector and routing diagrams. It is the same information a John Deere dealer technician works from, with the torque values, wear limits and hydraulic test pressures called out so a repair is done to spec the first time.
What's Inside This John Deere 8225R, 8245R, 8270R, 8295R, 8320R, 8345R Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | Safety, Identification, Sealants and Adhesives, Metric and Unified Inch Torque Values, Face Seal and Four-Bolt Flange Fitting Torques, Zinc-Flake Coated Fasteners, Hydraulic Contamination Prevention | |
| Engine | Engine Removal and Installation, Engine Repair, PowerTech 9.0L 6-Cylinder Diesel, Flywheel Dampener, Front Frame Removal, Ils Differential Case Mounting | |
| Fuel and Cooling Systems | Diesel Fuel System, Denso Hpcr High-Pressure Fuel Pump, Air Intake System, Engine Cooling System, Vari-Cool Variable Fan Drive, Charge Air Cooler, Air Conditioning Condenser | |
| Electrical System | Connector Repair, Wiring Harness Routings, Charging Circuit, Starting Circuit, Relays, Fuses and Solenoids, Monitoring Systems and Sensors, Armrest Control, Implement and Accessory Connectors, DEF System Electrical | |
| Power Shift Transmission | Component Removal and Installation, Miscellaneous Repair, Transmission Internal Repair, 16-Speed PowerShift | |
| AutoPowr/IVT Transmission | Component Removal and Installation, General Repair Procedures, In-Tractor Repairs, Transmission Repair and Assembly, Infinitely Variable Transmission | |
| Drive Systems | Rear Differential and Input Quill, Primary and Secondary Brakes, Final Drives, Rear PTO, Hydraulic Pump Drive, MFWD Clutch, Drivelines | |
| 1300 Series MFWD Axle | Final Drives, Axle Housing, Differential, Input Gear Train, Oscillation | |
| Independent Link Suspension Axle | Controls, Final Drives, Drive Shafts, Differential, Steering, Suspension, Front Brakes, Ils Accumulator | |
| 1500 Series MFWD Axle | Final Drives, Axle Housing, Differential, Input Gear Train, Oscillation and Tie Rod | |
| Steering and Brakes | Steering Column, Steering Control Assembly, Steering Cylinders, Brake Valve, Hydraulic Trailer Brake, Air Trailer Brake | |
| Hydraulics | Hydraulic System Repair and Cleanup, Integrated Hydraulic Pump, Hitch Valve, Selective Control Valves and Couplers, Rear Hitch, Front Hitch | |
| Operator Station | HVAC, Air Conditioning System, Air Suspension Seat, Active Seat, CommandARM Armrest, Cab Door and Windshield | |
| Miscellaneous | Hood, Front Axle (Two-Wheel Drive), Wagon and Pick-Up Hitch, Rear Wheels | |
| Dealer Tools | Dealer Fabricated Tools, Essential and Recommended Tools, JDG820 Flywheel Rotation Tool, JDG10041/JDG10042 Lifting Brackets, JDG23 Lift Sling |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All models | ||
| Engine | John Deere PowerTech 9.0L 6-cylinder diesel with Denso HPCR fuel system | |
| Engine-to-Transmission Drive Shaft Cap Screws | 126 N·m (92 lb-ft) | |
| Front Frame-to-Transmission Cap Screws (Zinc-Flake) | 430 N·m (317 lb-ft) | |
| Front Support-to-Front Frame Cap Screws (Zinc-Flake) | 430 N·m (317 lb-ft) | |
| Fan Drive Mounting Nuts and Cap Screw (Vari-Cool) | 35 N·m (26 lb-ft) | |
| Transmission Options | 16-speed PowerShift (Section 50) or AutoPowr/IVT infinitely variable (Section 51) | |
| 8225R, 8245R, 8270R, 8295R, 8320R, 8345R with MFWD or 2WD | ||
| Engine-to-Front Frame Cap Screws (12 mm, MFWD/2WD) | 142 N·m (105 lb-ft) dry torque | |
| 8225R, 8245R, 8270R, 8295R, 8320R, 8345R with ILS | ||
| Engine-to-Differential Case Cap Screws (12x102 mm, ILS) | 130 N·m (96 lb-ft) dry torque | |
| S.N. 01001-053099 (Russia: 001001-052200) | ||
| OEM Reference (Repair Manual) | TM104319, published 14 January 2013; companion diagnostic manual TM104219 | |
John Deere 8225R, 8245R, 8270R, 8295R, 8320R, 8345R Common Problems This Manual Covers
DEF pump or DE tank heater failure with active code 43666 or E86.
Disconnect power and inspect all wiring at the DE tank header for chafing or swapped shields before condemning the heater. The Monitoring Systems and Sensors group in Section 40 shows the correct harness routing and connector locations for the DEF circuit. Replace the DE tank heater assembly (not the pump alone) if the temperature sensor reads correctly but heater output is absent, and confirm the replacement is programmed to match the original control unit per Section 10 electronic control unit service guidelines.
Manual Section: Electrical System (Section 40)Front axle noise, excessive steering play, or difficult serviceability on pre-2019 ILS models
The ILS front axle design received reliability updates on 2019-and-later production. On earlier machines, follow Section 58 Group 00 for proper removal and installation sequence including the ILS accumulator depressurize procedure, and consult Section 58 Group 25 and 30 for steering and suspension tolerances before reassembly. Replace worn steering knuckle seals and suspension bushings to factory wear limits to restore geometry.
Manual Section: Independent Link Suspension Axle (Section 58)Engine overheating or Vari-Cool fan drive belt slipping or squealing
Perform the sheave backlash test described in Section 30 Group 15: place wrenches on the inner and outer driven sheave lugs and measure the distance between reference lines drawn across both sheaves. If backlash exceeds 6 mm the driven sheave assembly must be replaced. Check that the correct Corn Head Grease AN102562 is applied to the splines and that the vent plug hole is positioned upward during reassembly.
Manual Section: Fuel and Cooling Systems (Section 30)Extended oil filter interval failure or premature engine wear
Using engine oil that does not meet John Deere Plus-50 II specification - or fuel with sulfur content above 1000 mg/kg - cuts the allowable oil change interval from 500 hours to 250 hours. Replace filter RE509672 and the fuel water separator N378886 on schedule. If the fuel supply is suspect, inspect and clean the transfer pump strainer and confirm the secondary air filter RE587794 is not bypassed, since a clogged air side amplifies combustion-related contamination.
Manual Section: Fuel and Cooling Systems (Section 30)Frequently Asked Questions
What engine is in the John Deere 8225R through 8345R and where are the torque specs?
All six models use the John Deere PowerTech 9.0L six-cylinder diesel with Denso high-pressure common-rail injection. The repair manual (TM104319) gives dry-torque values at the start of each repair group - for example, engine-to-front-frame cap screws torque to 142 N·m (105 lb-ft) on MFWD and two-wheel-drive tractors, and 130 to 142 N·m on ILS tractors depending on cap screw location.
How do you fix a DEF pump or DE tank heater failure on an 8270R or 8295R?
Code 43666 and related DEF faults usually point to a failed DE tank heater or a faulty temperature sensor in the diesel exhaust fluid tank. The manual covers the full DEF system wiring through the Monitoring Systems and Sensors group in Section 40. Inspect all lines at the DE tank header and verify shields are not swapped before replacing the heater assembly.
What IVT or PowerShift transmission faults does this repair manual cover?
TM104319 covers both the 16-speed PowerShift (Section 50) and the AutoPowr/IVT (Section 51) in full detail. Section 50 includes in-tractor repair and full internal rebuild procedures. Section 51 adds IVT-specific general repair procedures, in-tractor repairs, and a step-by-step transmission assembly sequence with the torque values and wear tolerances needed to complete the job correctly.
How often should oil and hydraulic filters be changed and which parts fit?
Using oil that meets John Deere Plus-50 II specification allows a 500-hour oil change interval; non-qualifying oil shortens it to 250 hours. The hydraulic and transmission oil filter is RE210857. Oil filter RE509672, primary air filter RE587793, secondary air filter RE587794 and fuel water separator N378886 cover the main service intervals. Always confirm the interval in Section 10 of TM104319 against your operating conditions.
Does this manual cover both the 1300 and 1500 series MFWD axles and the Independent Link Suspension?
Yes. Section 57 covers the 1300 series MFWD axle including final drives, axle housing, differential and input gear train. Section 59 covers the 1500 series MFWD axle with the same depth. Section 58 covers the Independent Link Suspension front axle - controls, final drives, drive shafts, differential, steering, suspension geometry and front brakes - which is the system that had reliability improvements on 2019-and-later production.
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