Part of the John Deere Repair Manuals.
This is the complete John Deere factory diagnosis and tests service manual (TM128219) for the 5085E, 5095E and 5100E tractors equipped with the Interim Tier 4 emissions package. Across 2,332 pages it walks through every diagnostic path on the machine: reading and clearing Diagnostic Trouble Codes across all five control units, tracing faults with observable symptom trees, and performing calibrations, circuit tests and pressure checks on the 4045 PowerTech engine, fuel and air system, drive systems, transmission, steering, brakes, hydraulics and cab. The electrical chapters alone contain over 30 labeled circuit schematics, full harness and connector data, and test procedures with pass/fail limits so you work to factory specification the first time.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | Safety, General References, Technical Specific References, Specifications | |
| Diagnostic Trouble Codes | Ccu Code Diagnostics, ECU Code Diagnostics, Eic Code Diagnostics, Icc Code Diagnostics, Ptr Code Diagnostics | |
| Observable Symptoms and System Diagnostics | Engine Diagnostics, Fuel/Air/Exhaust/Cooling Diagnostics, Electrical Diagnostics, ECU Diagnostics, Drive Systems and Transmission Diagnostics, Steering and Brakes Diagnostics, Hydraulic Diagnostics, Cab Diagnostics | |
| Engine | 4045 PowerTech Calibrations, Preliminary Checks, Theory of Operation, Engine Schematics, Component and Connector Information, Tests and Adjustments | |
| Fuel, Air Intake, Exhaust, and Cooling | Fuel System, Air Intake, Exhaust, Cooling Calibrations, Theory of Operation, Schematics, Component Information, Tests and Adjustments | |
| Electrical General and Theory of Operation | Turn Signal and Warning Lights, Wipers, Instrument Cluster Control (Icc), Electrohydraulic Control Unit (Ehc), Power Train Reverser (Ptr), Chassis Control Unit (Ccu), Engine Control Unit (ECU), Controller Area Network (CAN) | |
| Electrical Schematics | Key Switch/Starter/Alternator (SE1), Neutral Start (SE2), Accessory Power (SE3), Horn (SE4), Headlights and Signal Lights (SE5-SE8), Trailer Connector (SE10-SE11), Loader Lights (SE12), Back-Up Alarm and Beacon (SE13), Mid-Mount SCV (SE14), Power Outlets (SE15), Heating and Air Conditioning (SE16-SE17), Wipers (SE19-SE21), Instrument Cluster/ICC (SE24), EHC/PTR/CCU/ECU (SE29-SE30), CAN Bus (SE32) | |
| Electrical Components and Connectors | Starting and Charging, Fuses and Relays, Ground Points, Interconnects, Wiring Harnesses, Connector Locations | |
| Electrical Tests and Adjustments | Starting and Charging Tests, Lighting Tests, PTO and Seat Tests, Control Unit Tests, Alternator Output Verification | |
| Drive Systems and Transmission | Drive Systems Calibrations, Transmission Calibrations, Theory of Operation, Schematics, Component Information, Drive Systems Tests, Transmission Tests and Adjustments | |
| Steering and Brakes | Brake Calibrations, Steering Calibrations, Brake Theory of Operation, Secondary Brake Theory, Steering Theory, Brake and Steering Schematics, Component Information, Tests and Adjustments | |
| Hydraulics | Hydraulic Calibrations, General Hydraulics Theory, Mechanical Hitch Theory, Hydraulic Filter Theory, Hydraulic Pump Theory, Mid-Mount SCV, Rear SCV, Power Beyond, Quick Disconnect Coupler, Hydraulic Trailer Brake, Schematics, Tests and Adjustments | |
| Cab and Open Operator Station | HVAC Theory of Operation, Air Seat Theory, Schematics, Component Information, Tests and Adjustments | |
| Special Tools | General References, Dealer Fabricated Tools, Service Tools |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 5085E, 5095E, 5100E | ||
| Engine | John Deere 4045 PowerTech 4.5L, 4-cylinder turbocharged diesel, IT4/Stage IIIB, below 130 kW (174 hp) | |
| Power Train Reverser (PTR) | ||
| PTR Clutch Come-Home Mode Pressure | 1750 kPa (17.5 bar / 253 psi) | |
| PTR transmission clutch | ||
| Transmission Clutch Fill Pressure | 290 kPa | |
| All models | ||
| Alternator Output Voltage | 14.2-14.8 V | |
| Battery Full Charge Voltage | 12.65 V (specific gravity 1.265) | |
| Battery 75% State of Charge | 12.45 V (specific gravity 1.225) | |
| PTO Shaft Speeds | 540 rpm and 1000 rpm | |
| Hydraulic Oil Temperature Warning Threshold | Above 110 degrees C for more than 6 seconds triggers CCU code | |
| Engine Warm-Up Speed for Tests | 1200-1500 rpm | |
| Electrohydraulic Control Unit (EHC) | ||
| EHC Sensor Supply Voltage | 5.0 V | |

















