Part of the John Deere Repair Manuals.
Hydraulics carry the heaviest load in TM11406, the 690-page John Deere 318D, 320D Operation and Test manual PDF for skid steer loaders with EH controls, with the hydraulic and hydrostatic sections running deeper than any other part of the book. Diagnostic trouble codes fill the front half, sorted by controller so an ECU, HCU, EMU or joystick fault leads you straight to the test that isolates it. Electrical coverage carries full system diagrams and wiring schematics for tracing circuits back through the harness, plus operational checkout routines, power train tests, and torque tables. Charge pressure relief should hold 3400 to 4800 kPa (500 to 700 psi), and the starter relay reads under 0.4 ohms across the contacts. Nothing kills an afternoon like a pressure spec you cannot confirm. Bookmarked and text-searchable throughout, this download is yours once you buy it, on your drive for as long as you own the loader.
Complete the set for your 318D, 320D
- Parts Catalog: John Deere 320D Parts Catalog
Other edition of this manual
What's Inside This John Deere 318D, 320D Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 7-22 | Safety |
| Diagnostic Trouble Codes (DTCs) | 23-184 | Engine Control Unit Diagnostic Trouble Codes, Engagement and Monitor Unit Diagnostic Trouble Codes, Hydraulic Control Unit Diagnostic Trouble Codes, Left Joystick Controller |
| Operational Checkout Procedure | 185-202 | Operational Checkout, Engine Off Checks, Engine on Checks, Hydraulic Control Enable, Steering Mistracking |
| Engine | 203-218 | Theory of Operation, Diagnostic Information, Tests |
| Electrical System | 219-468 | System Diagrams |
| Power Train | 469-480 | Theory of Operation, Diagnostic Information, Tests |
| Hydraulic System | 481-650 | Theory of Operation, Diagnostic Information, Tests |
| Heating and Air Conditioning | 651-676 | Theory of Operation, Diagnostic Information, Tests |
| Dealer Fabricated Tools | 677-690 | Motor Speed Sensor Test Harness, Solenoid Power Harness |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Relay Test Multimeter Reading | less than 0.4 Ω | p. 231 |
| Check Valve (162) | 830 kPa (8.3 bar) (120 psi) | p. 503 |
| Check Valve (163) | 35 kPa (0.35 bar) (5 psi) | p. 503 |
| Charge Pressure Relief Valve Pressure | 3400—4800 kPa, 34—48 bar, 500—700 psi | p. 563 |
| R134a Oil Charge Capacity | 217.4 mL | p. 673 |
| R134a Refrigerant Charge Capacity | 1.36 kg | p. 673 |
| 318D | ||
| Engine Speed Fast Idle (318D) | 2800 rpm | p. 216 |
| Turbocharger Boost Pressure (318D) | 122 kPa at 2600 rpm | p. 216 |
| Boom Raise Cycle Time (318D) | 3.7 sec | p. 200 |
| 320D | ||
| Engine Speed Fast Idle (320D) | 2800 rpm | p. 216 |
| Turbocharger Boost Pressure (320D) | 132 kPa at 2600 rpm | p. 216 |
| Boom Raise Cycle Time (320D) | 3.2 sec | p. 201 |
