Part of the John Deere Repair Manuals.
Looking for the factory procedures to revive your D-Series machine? This 615-page John Deere 318D technical manual PDF (OEM #TM11398) breaks down the complete powertrain, hydrostatic systems, and electrical circuits for the 318D, 319D, 320D, and 323D Skid Steer Loaders. Inside, you get a massive diagnostic section packed with specific DTC resolutions for both the ECU and EMU, plus complete hydraulic schematics tracing every line from the high-flow pump to the self-leveling valves. Open straight to detailed wiring diagrams for the cab harness and step-by-step teardown procedures for the drive chains. Bring your hydraulic oil temperature to exactly 60°C (140°F) before running the two-speed shift test, and verify seat belt assemblies are replaced every 3 years. Stop wasting shop hours on forum guesswork. Download the file directly to your phone, use the bookmarks to find your schematic, and get your loader back in the dirt.
Complete the set for your 318D to 323D Series
- Parts Catalog: John Deere 320D Parts Catalog
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 7-27 | Safety (Recognize Safety Information, Follow Safety Instructions, Operate Only If Qualified, Wear Protective Clothing, Avoid Unauthorized Machine Modifications, Inspect Machine, Stay Clear of Moving Parts, Avoid High-Pressure Fluids, Avoid High-Pressure Oils, Work in Ventilated Area, Prevent Fires, Prevent Battery Explosions, Handle Chemical Products Safely, Decommissioning: Proper Recycling and Disposal of Fluids and Components, Prepare for Emergencies, Clean Debris From Machine, Use Steps and Handholds Correctly, Start Only From Operator′s Seat, Use and Maintain Seat Belt, Prevent Unintended Machine Movement, Avoid Work Site Hazards, Keep Riders Off Machine, Avoid Backover Accidents, Avoid Machine Tip Over, Operating on Slopes, Operating or Traveling on Public Roads, Inspect and Maintain ROPS, Add and Operate Attachments Safely, Park and Prepare for Service Safely, Service Cooling System Safely, Remove Paint Before Welding or Heating, Make Welding Repairs Safely, Drive Metal Pins Safely, Service Tires Safely, Handle Cab Door Safely) |
| Diagnostic Trouble Codes (Dtcs) | 28-144 | Engine Control Unit Diagnostic Trouble Codes (Foot Throttle Sensor Out of Range High Diagnostic Procedure, Foot Throttle Sensor Out of Range Low Diagnostic Procedure, - Foot Throttle Sensor, Hand Throttle Sensor Out of Range High Diagnostic Procedure, Hand Throttle Sensor Out of Range Low Diagnostic Procedure, - Hand Throttle Sensor, - Engine Oil Pressure High, Engine Air Filter Switch Data Above Normal Diagnostic Procedure, Ambient Air Temperature Out of Range High Diagnostic Procedure, Ambient Air Temperature Out of Range Low Diagnostic Procedure, - Vehicle Identification Number, Fan Coil Output Driver Out of Range Low Diagnostic Procedure, Fan Coil Output Driver Out of Range High Diagnostic Procedure, Manual Purge Mode Switch Active Too Long Diagnostic Procedure, Fan Coil Output Driver Unknown Fault Diagnostic Procedure, Glow Plug Relay Output Out of Range Low Diagnostic Procedure, Glow Plug Relay Output Out of Range High Diagnostic Procedure, - Engine Protection Has Shut Down Engine, Starter Relay Output Out of Range Low Diagnostic Procedure, - Starter Relay Output Moderately High Value, Hydraulic Oil Temperature Data Above Normal Diagnostic Procedure, Hydraulic Oil Temperature Out of Range High Diagnostic Procedure, Hydraulic Oil Temperature Out of Range Low Diagnostic Procedure, Hydraulic Filter Restriction Switch Data Above Normal Diagnostic Procedure, No Emu Data on CAN Bus Abnormal Data Range Diagnostic Procedure, Fan Reversing Coil Output Out of Range Low Diagnostic Procedure, Fan Reversing Coil Output Out of Range High Diagnostic Procedure) |
| Operational Checkout Procedure | 145-159 | Group 10 - Operational Checkout Procedure, Key Switch on, Engine on Checks |
| Engine | 160-175 | Theory of Operation (John Deere Engine, Cold Start Operation) |
| Electrical System | 176-385 | System Information (Electrical: Diagram Information, Schematic Symbols) |
| Power Train | 386-397 | Theory of Operation (Power Train System Operation, Chain Case Operation, Drive Chain Operation, Drive Axle Operation) |
| Hydraulic System | 398-512 | Theory of Operation (Hydraulic System Operation, Hydraulic Oil Filter Manifold Operation, High Flow Pump Operation, If Equipped, Self Leveling Valve Operation, Hydraulic Pump Operation, Hydraulic Fan Operation, Hydraulic Control Valve Operation) |
| Hydrostatic System | 513-587 | Theory of Operation (Hydrostatic System Operation, Hydrostatic Pump Operation, Charge Pump Operation, Hydrostatic Motor Operation, Single Speed, Two Speed, Hydrostatic Control Valve Operation, Park Brake System Operation, Steering Control Operation) |
| Heating and Air Conditioning | 588-614 | Group 05 - Theory of Operation, Air Conditioning System Cycle of Operation, Group 15 - Diagnostic Information, Air Conditioner Runs Constantly, Too Cool Diagnostic Procedure, Group 25 - Tests, Refrigerant Cautions and Proper Handling, Visual Inspection of Components |
| Dealer Fabricated Tools | 615 | Group 99 - Dealer Fabricated Tools, DFT1325 Solenoid Power Harness |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Use and Maintain Seat Belt | 10 | p. 6 |
| Inspect hydraulic hoses periodically | at least once per year | p. 10 |
| Seat belt assembly replacement interval | every 3 years | p. 16 |
| Hydraulic oil temperature is below specification for two speed shift to occur | 318D and 320D machines only | p. 312 |
| Hydraulic Oil Temperature | 60°C 140°F | p. 360 |
| Engine Speed | Fast Idle | p. 360 |
| Park brake release pressure | 1400 kpa (14 bar) (200 psi) | p. 561 |
| Engine Coolant Temperature | 88–94°C | p. 170 |
| 318D | ||
| 318D Engine Speed Fast Idle | 2800 rpm | p. 170 |
| 320D | ||
| 320D Engine Speed Fast Idle | 2800 rpm | p. 170 |
| 318D, 319D (S.N. -203036) | ||
| 318D Turbocharger Boost Pressure | 122 kPa at 2600 rpm | p. 170 |
| 319D (S.N. 203037- ), 320D, 323D (S.N. 202965) | ||
| 320D Turbocharger Boost Pressure | 132 kPa at 2600 rpm | p. 170 |
