Part of the John Deere Repair Manuals.
Pump and motor efficiency tests, shaft seal replacement, and full removal sequences cover the hydrostatic drive in the John Deere 3375 technical manual PDF, factory number TM1565, 283 pages written for the 3375 skid steer loader. Electrical diagnostics run through the middle third of the book, with circuit drawings that trace the cranking, glow plug, charging, and hydraulic boom lockout paths wire by wire. Hydraulics closes it out: charge pump flow testing, system relief valve pressure checks, and boom and bucket cylinder rebuilds, plus schematics for the loader valve circuit. Ream the rear cover bushing to 12.50 to 12.53 mm, torque the cylinder head in three passes ending at 34 N-m, and run a 10 micron no-bypass filter. Bookmarked, searchable, and cheap to print, so the pages can live on the bench and take some grease.
What's Inside This John Deere 3375 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Vehicle Specifications | 9-10 | Engine Specifications |
| Unified Inch Torque Values | 11 | Grade 1 Torque Values |
| Metric Torque Values | 12 | Class 4.8 Torque Values |
| Diesel Fuel Specifications | 13 | Diesel Fuel Storage (Do Not Store Diesel Fuel in Galvanized Containers) |
| Lubricant Specifications | 14-15 | Engine Oil, Grease, Transmission and Hydraulic Oil, Alternative Lubricants, Synthetic Lubricants, Oil Filters, Lubricant Storage, Engine Coolant |
| Serial Number Location and Engine Specifications | 16-37 | Engine Serial Number, General Specifications, Theory of Operation |
| Troubleshooting and Tests | 38-59 | Troubleshooting, Tests and Adjustments |
| Diesel Engine Component Repair | 60-130 | Component Repair, Removal and Installation |
| Electrical | 131-190 | Electrical Diagnostic Information, Power Circuit Operation, Cranking Circuit, Charging and Alternator Light Circuit, Glow Plug Circuit, Hydraulic Boom Lockout Circuit |
| Gear Power Train | 191-208 | Drive Chain Replacement, Idler Assembly, Axle Removal, Axle Inspection, Drive Chain Installation, Drive Chain Tension Adjustment |
| Hydrostatic Power Train | 209-236 | Hydrostatic Pump Efficiency Test, Motor Efficiency Test, Hydrostatic Pump Removal, Hydrostatic Motor Removal, Shaft Seal Replacement |
| Steering | 237-243 | Theory of Operation, Troubleshooting, Drive Control Lever Neutral Adjustment, Drive Control Fast Speed Adjustment |
| Brakes | 244-251 | Park Brake Check, Park Brake Adjustment, Sprocket Wheel Replacement |
| Hydraulics | 252-283 | Hydraulic System Components, Charge Pump Flow Test, System Relief Valve Pressure Test, Boom Cylinder Repair, Bucket Cylinder Repair |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic system filter | 10 micron | p. 211 |
| Rocker Arm Cover Special Nut Torque | 18 N•m (160 lb-in.) | p. 22 |
| Rocker Arm Assembly Mounting Cap Screw and Nut Torque | 26 N•m (226 lb-in.) | p. 22 |
| Hitachi 0.8 kW Maximum Starter Amperage | 60 Amps at 7000 rpm | p. 29 |
| Rear cover bushing ream diameter | 12.50 - 12.53 mm (0.492 - 0.493 in.) | p. 111 |
| Fuel Injection Nozzle Mounting Nut Torque | 40 N•m (30 lb-ft) | p. 11 |
| Fuel Injection Nozzle Fitting Torque | 40 N•m (30 lb-ft) | p. 11 |
| Hydraulic oil filter element | 10 micron | p. 211 |
| Engine Horsepower | 17 hp @ 3400 rpm | p. 9 |
| Fuel Tank Capacity | 6 U.S. gal. (22.7 L) | p. 9 |
| Hydraulic System Capacity | 34 L (9 gal) | p. 9 |
| Operating Weight | 2200 lb (998 kg) | p. 9 |
John Deere 3375 Common Problems This Manual Covers
John Deere 3375 cranks but won't start, no fuel at injectors after sitting all winter
Start with the troubleshooting procedures before pulling anything apart. Confirm the fuel shutoff solenoid pulls in: it draws up to 60 amps for 1/2 second at the coil. Replace a plugged fuel filter, then bleed the line and check injector opening pressure at 11722 kPa (1700 psi).
Manual Section: Diesel Engine Troubleshooting p. 38Engine won't crank at all, no click from the starter with the key turned
Check battery voltage at the positive terminal first, then work the cranking circuit. Verify the seat switch and seat belt switch close before condemning the starter. Draw should stay near the 60 amps at 7000 rpm rating listed on page 29. If the bushing is sloppy, ream the rear cover to 12.50 to 12.53 mm (0.492 to 0.493 in.).
Manual Section: Cranking Circuit DiagnosisLift arms and bucket dead, engine runs fine but nothing moves
Sit down, belt up, and drop the seat bar completely before blaming the loader valve. Watch the control module diagnostic lights while you cycle each interlock, then test the boom solenoid for power and a clean ground. Verify hydraulic level against the 34 L (9 gal) system capacity on page 9 before you go deeper.
Manual Section: Hydraulic Boom Lockout Circuit DiagnosisLow power and bogs down under load pushing a full bucket
Pull the fuel tank cap and listen for a vacuum hiss, which means a blocked breather starving a 22.7 L (6 gal) tank. Replace the fuel filter, then follow the low engine output steps. This 17 hp engine at 3400 rpm has no reserve, so check injector nozzle wear against the 0.10 mm (0.0039 in.) contact surface limit.
Manual Section: Diesel Engine Troubleshooting p. 38Machine creeps or pulls hard to one side, slow travel in both directions
Check hydraulic oil level and the charge circuit before touching the pump. Replace the 10 micron no-bypass filter spec'd on page 211, since a loaded element kills charge pressure fast. Verify the park brake solenoid releases fully, then run the hydrostatic pump and motor efficiency tests and adjust drive control lever neutral.
Manual Section: Hydrostatic Power Train p. 209Blue or black smoke out the exhaust with rough idle and hard hot restarts
Inspect the air intake for a plugged element, then pull the injectors and test pop pressure at 11722 ± 480 kPa (1700 ± 70 psi). Torque nozzles back to 50 N·m (37 lb-ft) and the mounting nuts to 40 N·m (30 lb-ft). Work the exhaust smoke chart to sort fuel problems from ring wear.
Manual Section: Diesel Engine Troubleshooting p. 38Frequently Asked Questions
What are the torque specifications for the wheel lug bolts on the John Deere 3375?
The torque specification for the wheel lug bolts on the John Deere 3375 is 80 N•m (60 lb-ft). p. 193
What hydraulic oil is recommended for the John Deere 3375?
The recommended hydraulic fluid for the John Deere 3375 is JD HY-GARD™ or an equivalent SAE J20C oil. p. 9
How do I troubleshoot a John Deere 3375 that will not start?
If the engine will not start, check for issues such as improper intake/exhaust valve clearance, seized valves, broken or seized piston rings, foreign matter in the combustion chamber, or improper injection timing. Refer to the troubleshooting chart on page 38 for a complete list of potential causes and solutions. p. 38
What is the cylinder head mounting cap screw torque specification for the John Deere 3375?
The cylinder head mounting cap screw torque is applied in three stages: first to 11 N•m (97 lb-in.), second to 22 N•m (195 lb-in.), and finally to 34 N•m (25 lb-ft). p. 22
What is the intake valve clearance for the John Deere 3375 engine?
The intake valve clearance (cold) for the John Deere 3375 engine is 0.2 mm (0.008 in.). p. 9
How will I receive this John Deere 3375 Technical Manual?
Immediate download of the complete 283-page searchable Technical Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Can I print specific sections of this John Deere 3375 Technical Manual?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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