Part of the John Deere Repair Manuals.
Both the 325 and 328 skid steer loaders sit inside one John Deere factory book: TM2191, 880 pages, the John Deere 325, 328 Operation and Test Manual PDF your dealer's shop worked from. Wiring diagrams and component location drawings fill the electrical section, the largest block in the volume, tracing circuits from the EMU through the joystick controllers out to fuse specs and connector repair. Hydraulic and hydrostatic coverage runs close behind: control valve theory, pressure and pump flow tests, cylinder drift checks, park brake and tracking adjustment, and diagnostic trouble codes for EMU, HCU, JSL and JSR faults. Set drive chain play at 5 mm (0.197 in.) up and down, tension the chain to 6.35 mm at the tire tread, and reject any boom cylinder drifting past 12.7 mm (0.5 in.). Intermittent faults under load eat a morning. Text searchable, your copy rides along to whatever yard the machine sits in.
Complete the set for your 325, 328
- Parts Catalog: John Deere 325, 328 Skid Steer Parts Catalog
- Repair Manual: John Deere 325, 328 Skid Steer Repair Manual
What's Inside This John Deere 325, 328 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 7-18 | Safety (Recognize Safety Information, Follow Safety Instructions, Operate Only If Qualified) |
| Diagnostic Trouble Codes (DTCs) | 19-186 | EMU Codes, HCU Codes, JSL Codes, JSR Codes, Troubleshooting Procedures |
| Operational Checkout Procedure | 187-208 | Key Switch Checks, EMU Circuits, Hydraulic Controls, Quik-Tatch, Steering Mistracking |
| Engine | 209-220 | Theory of Operation, Observable Symptoms, Engine Speed Test, Turbocharger Boost Pressure |
| Electrical System | 221-566 | System Diagrams, Fuse Specifications, Component Location, Wiring Diagrams, Connector Repair |
| Power Train | 567-582 | Chain Case Operation, Drive Chain Tension, Axle Play, Grinding Noise, Drive Chain Adjustment |
| Hydraulic System | 583-736 | Theory of Operation, Control Valve Operation, Pressure Tests, Pump Flow Tests, Cylinder Drift |
| Hydrostatic System | 737-846 | Hydrostatic Pump Operation, Steering Control, Park Brake System, Neutral Adjustment, Tracking Adjustment |
| Heating and Air Conditioning | 847-864 | System Cycle of Operation, Refrigerant Handling, Operational Checks, Pressure Diagnostic Chart |
| Dealer Fabricated Tools | 865-868 | Motor Speed Sensor Test Harness, Solenoid Power Harness |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Air conditioner compressor clutch relay coil resistance | 81—99 ohms | p. 73 |
| Boom Cylinder Drift | 12.7 mm Maximum / 0.5 in. Maximum | p. 198 |
| Boom Circuit Drift | 12.7 mm Maximum / 0.5 in. Maximum | p. 200 |
| Chain Tension—Play | 6.35 mm at tire tread, 0.25 in. at tire tread | p. 581 |
| Drive Chain—Play | 5 mm up and down, 0.197 in. up and down | p. 581 |
| Engine—Slow Idle Speed | 1230—1370 rpm | p. 217 |
| Engine—Fast Idle Speed | 2930—3070 rpm | p. 217 |
| Bucket Circuit Drift | 12.7 mm Maximum | p. 201 |
| 325 | ||
| 325 New, Typical Flow Rate | 83.3 L/min (22.0 gpm) | p. 734 |
| 325 Used, Minimum Flow Rate | 66.6 L/min (17.6 gpm) | p. 734 |
| 325 Turbocharger Boost Pressure | 107 kPa at 2800 rpm | p. 219 |
| 328 | ||
| 328 Turbocharger Boost Pressure | 121 kPa at 2800 rpm | p. 219 |
