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 John Deere 300D, 310D, 315D 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 | 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 | 67 hp (50 kW) | p. 35 |
John Deere 300D, 310D, 315D Common Problems This Manual Covers
John Deere 300D/310D/315D hydraulics sluggish and weak, won't pick up half a bucket of dirt
Check the hydraulic troubleshooting chart on page 507 for a restricted reservoir suction screen; pull it out and clean it. Verify the reservoir holds the full 41.5 L (44 qt) capacity listed on page 21, since a low fluid level is often mistaken for pump failure. Cycle the bucket fully and confirm flow returns to spec on page 499.
Manual Section: Hydraulic System Malfunctions p. 507Slow forward movement with normal reverse; transmission oil bypassing under load
Check the power train diagnostic values and hook a gauge to the transaxle charge pressure port; if pressure drops under load, the bypass valve is stuck open. Remove it, inspect the poppet and spring, then clean the valve bore. Refill the reservoir to its 41.5 L (44 qt) capacity on page 21.
Manual Section: Power Train MalfunctionsMachine won't move in forward or reverse despite the engine running normally
Start with the operational checkout service procedures on page 65 and confirm the FNR switch and neutral start circuit engage properly. Check that the park brake is fully released before testing drive. Verify the reservoir holds its full 41.5 L (44 qt) capacity on page 21; a weak charge pump won't build drive pressure.
Manual Section: Operational Checkout Procedure p. 65Engine cranks slowly or fails to start in cold weather despite a fully charged battery
Check the engine troubleshooting procedures on page 104 for cold-start diagnostics. Verify the fan belt deflects 7/16 in. under 25 lbs of push per page 95; a slipping belt starves the charging system. Confirm engine oil is filled to the 8.5 L (9 qt) capacity on page 21, since wrong oil weight increases cranking resistance.
Manual Section: Engine Malfunctions p. 104AC blows warm instead of cold air, compressor clutch cycles rapidly on and off
Check the A/C electrical circuit list under Heating and Air Conditioning on page 4; test the low and high pressure switches and the clutch cycle switch first. Verify the system holds its full refrigerant charge of 2.3 kg (5 lbs) R134a per the spec on page 627; a low charge triggers rapid clutch cycling and warm airflow.
Manual Section: Heating and Air Conditioning p. 627Frequently Asked Questions
What is the engine oil capacity, including the filter, for the John Deere 300D Backhoe Loader?
The engine oil capacity, including the filter, for the 300D Backhoe Loader is 8.5 L (9 qt). This specification is important for proper engine maintenance and oil changes. p. 21
What is the transaxle oil capacity for the John Deere 300D Backhoe Loader without Mechanical Front Wheel Drive (MFWD)?
The transaxle oil capacity for the 300D Backhoe Loader without MFWD is 21 L (22 qt). This capacity ensures adequate lubrication and cooling for the transaxle system. p. 21
What are the torque specifications for standard axle wheel fasteners on the John Deere 300D, 310D, 315D Backhoe Loaders?
The torque specification for standard axle wheel fasteners is 136 +20 -27 N•m (100 +15 -20 lb-ft). It is crucial to tighten these fasteners to the specified torque to ensure safety and proper wheel retention. p. 41
What is the specified slow idle RPM for the engine on the John Deere 300D, 310D, 315D Backhoe Loaders?
The specified slow idle RPM for the engine is 850 ± 50 rpm. This should be checked after the engine reaches normal operating temperature to ensure correct idle speed. p. 121
How quickly can I access this John Deere 300D, 310D, 315D manual after buying?
Instant PDF download. You get the full 644-page searchable Technical Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Are there any print restrictions on this John Deere 300D, 310D, 315D manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Does this John Deere 300D, 310D, 315D manual cover the hydraulic system?
Yes. The manual includes a hydraulic system diagram covering the main circuits.
Reviews
There are no reviews yet.