Part of the John Deere Repair Manuals.
This 644-page John Deere 300D Operation and Test Manual (TM1496) covers the 310D and 315D too, giving you the full electrical and hydraulic diagnostic reference for your backhoe loader. Open it up and you get complete wiring diagrams for the electrical system, hydraulic schematics for the loader and backhoe circuits, and a full troubleshooting section built around actual fault codes instead of guesswork. You'll also find theory of operation writeups for the engine, power train, and hydraulics, plus torque values and fluid recommendations pulled straight from the factory floor. Set fan belt deflection to 7/16 inch under 25 lbs of push, and check hydraulic fittings against the O-ring boss torque tables before you button anything up. Stop chasing electrical gremlins with a test light and no reference; this bookmarked PDF opens on your laptop or phone, so you can jump straight to the section you need and get the backhoe back to work.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 5-62 | Safety Information, Torque Values, Fuels and Lubricants |
| Operational Checkout Procedure | 63-86 | Gauge and Indicator Check with Engine Off, Fnr and Neutral Start Switches, Park Brake, Brake System Checks, Steering System Checks, Hydraulic System Checks |
| Engine | 87-136 | Engine Theory of Operation, Engine Operational Tests, Fuel and Cooling Diagnosis, Component Location |
| Electrical System | 137-334 | System Information, System Diagrams, Sub-System Diagnostics, References |
| Power Train | 335-450 | Power Train Theory of Operation, Transmission and Hydrostatic Tests, Drivetrain Diagnosis, Adjustments |
| Hydraulics | 451 | Theory of Operation, System Operational Checks, Diagnostic Information, Adjustments, Tests |
| Heating and Air Conditioning | 4 | Theory of Operation, System Operational Checks, Diagnostic Information, Adjustments, Test |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Service Recommendations for O-Ring Boss Fittings | 9000-03-7 | p. 5 |
| Service Recommendations for Flat Face O-Ring Seal Fittings | 9000-03-9 | p. 5 |
| Fan belt deflection | 7/16 in. with 25 lbs of push | p. 95 |
| Coolant hoses replacement | Replace as necessary | p. 102 |
| Low engine output | See Group 9010-15. | p. 387 |
| Steering system pump flow at fast idle | about one half of the pump flow | p. 460 |
| Engine Displacement | 239 cu. in. (3.91 L) | p. 19 |
| Engine Oil Capacity (including filter) | 8.5 L (9 qt) | p. 21 |
| Fuel Tank Capacity (Serial No. —802199) | 106 L (28 gal) | p. 21 |
| 300D | ||
| Engine Net Power, 300D | 60 hp (45 kW) @ 2200rpm | p. 19 |
| 310D | ||
| Engine Net Power (Naturally aspirated) | 67 hp (50 kW) @ 2200 rpm | p. 27 |
| 315D | ||
| Engine Net Power, 315D | 67 hp (50 kW) | p. 35 |
