This is the Kubota factory Service Manual for the L35 tractor, which also covers the TL720 front loader and the BT900 backhoe. Built around the D1703 diesel, it runs 503 pages of mechanism descriptions and detailed servicing procedures for the full tractor-loader-backhoe package.Sections cover the engine, clutch, transmission, rear and front axles, wet-disc brakes, steering, and the hydraulic system, along with ROPS and FOPS, the loader, and the backhoe. Each area combines how the system works with troubleshooting, servicing specifications, tightening torques, and disassembly and assembly steps, backed by the electrical wiring diagram.Use it to diagnose an engine that feels locked, intermittent electrical faults, hydraulic or loader and backhoe performance loss, brake wear, or a sloppy front end, using factory procedure rather than guesswork. It is delivered as a downloadable, printable PDF you can keep on the bench or a phone.
What's Inside This Kubota L35 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | - | Features, Tractor Identification, Handling Precautions for Electrical Parts and Wiring, Lubricants, Fuel and Cooling Water, Tightening Torques |
| Sect 1 Engine | - | Features, Engine Body (Cylinder Block, Cylinder Head, Crankshaft, Piston and Piston Rings, Connecting Rod, Camshaft, Rocker Arm, Intake and Exhaust Valves, Flywheel) |
| Sect 2 Clutch | - | Features, Linkage Mechanism, Operation |
| Sect 3 Transmission | - | Structure, Power Train (Main Gear Shift Section, Shuttle Shift Section, Hi-Lo Range Shift Section, Rear PTO Shift Section, One-Way Clutch, Front Wheel Drive Section) |
| Sect 4 Rear Axle | - | Features, Tightening Torques, Checking, Disassembling and Servicing (Draining the Transmission Fluid, Rear Wheel and Fenders, Rear Axle Case, Disassembling Rear Axle) |
| Sect 5 Brakes | - | Features (Wet Disc Brakes, Fade, Relationship Between Temperature and Friction Coefficient of Brake Disc), Operation (During Braking), Troubleshooting, Servicing Specifications |
| Sect 6 Front Axle | - | Structure, Front Wheel Alignment (Camber, Kingpin Angle, Caster, Toe-In), Troubleshooting, Servicing Specifications, Tightening Torques, Checking |
| Sect 7 Steering | - | Features, Hydraulic Circuit, Steering Controller (Control Valve, Metering Device, Relief Valve), Oil Flow, Steering Cylinder |
| Sect 8 Hydraulic | - | Hydraulic Circuit, Structure, Hydraulic Pump, Oil Filter, Position Control Valve, Position Control Linkage, Hydraulic Cylinder, Relief Valve |
| Sect 9 Electrical | - | Wiring Diagram, Electrical Circuit, Starting System (Starter Motor, Roller Clutch, Magnet Switch, Operation of Starter Motor, Glow Control System) |
| ROPS Fops | - | - |
| Loader | - | Features, Hydraulic System (Hydraulic Circuit, Control Valve Assembly), Feedback Linkage, Boom Cylinder and Bucket Cylinder |
| Backhoe | - | Features, Hydraulic System (Hydraulic Circuit, Control Valve, Overload Relief Valve, Lockout Valve), Hydraulic Cylinder, Quick Coupler |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic fluid level check | between the two notches | p. 427 |
| Cylinder head screws tightening torque | 93.1 to 98.0 N·m, 9.5 to 10.0 kgf·m, 68.7 to 72.3 ft-lbs | p. 77 |
| Valve Clearance (When Cold) | 0.18 to 0.22 mm, 0.0071 to 0.0087 in. | p. 72 |
| Relief Valve of Hydraulic Cylinder Body Setting Pressure | 17.2 to 17.7 MPa, 175 to 180 kgf/cm2, 2489 to 2560 psi | p. 482 |
| Maximum PTO power | 19.4 kW (26 HP) | p. 5 |
| Total displacement | 1647 cm³ (100.5 cu.in.) | p. 5 |
| Fuel tank capacity | 35 L (9.2 U.S. gals., 7.7 Imp. gals.) | p. 5 |
| Engine crankcase oil capacity | 4.8 L (5.1 U.S. qts., 4.2 Imp. qts.) | p. 5 |
| Transmission case capacity | 39 L (41.2 U.S. qts., 34.3 Imp. qts.) | p. 5 |
| Front tire pressure | 274 kPa (2.8 kgf/cm², 40 psi) | p. 44 |
| Rear tire pressure | 207 kPa (2.1 kgf/cm², 30 psi) | p. 44 |
| Front wheel mounting lug nuts torque | 137 N·m (14 kgf·m, 100 ft-lbs) | p. 25 |
Kubota L35 Common Problems This Manual Covers
Engine feels locked and will not turn over
Owners describe an L35 that seems mechanically locked; because the tractor uses a wet clutch, diagnosis starts with turning the engine by hand rather than the wheels. The Engine section covers the engine body service to isolate a seizure.
Manual Section: Sect 1 Engine p. 50Intermittent no-start or electrical faults
Wiring, switches, and relays cause intermittent no-start and no-run behavior on the L35. The Electrical section provides the wiring diagram and starting-system service, including the glow control system.
Manual Section: Sect 9 Electrical p. 338Hydraulic or loader and backhoe power loss
Loss of lift or digging performance often needs teardown-level diagnosis of pumps, valves, and seals. The Hydraulic section covers the hydraulic circuit, pump, position control valve, and relief valve.
Manual Section: Sect 8 Hydraulic p. 304Backhoe hydraulic and relief valve issues
Backhoe performance problems trace to the control valve, overload relief valve, or lockout valve. The Backhoe section details the hydraulic circuit, cylinders, and quick coupler.
Manual Section: Backhoe p. 446Brake fade or wet-disc brake wear
The L35 uses wet disc brakes that can fade as friction drops with temperature and wear. The Brakes section covers brake operation, troubleshooting, and servicing specifications.
Manual Section: Sect 5 Brakes p. 238Sloppy front end and steering play
Front wheel alignment drift and steering play develop as linkage wears. The Front Axle section covers front wheel alignment, camber, kingpin angle, caster, toe-in, and the related checking and torques.
Manual Section: Sect 6 Front Axle p. 252Frequently Asked Questions
Which machines does this manual cover?
It is the service manual for the Kubota L35 tractor and also covers the TL720 front loader and the BT900 backhoe, all using the D1703 diesel engine.
Does it include wiring diagrams?
Yes. The Electrical section contains the wiring diagram and the full electrical circuit, including the starting and glow control systems. p. 338
Where are the torque specifications?
The General section lists the general tightening torques for screws, bolts, and nuts, and individual sections add component torques such as the wheel mounting hardware. p. 8
Does it cover hydraulic troubleshooting?
Yes. The Hydraulic section covers the hydraulic circuit, pump, oil filter, position control valve, and relief valve for diagnosing lift and pressure problems. p. 304
Is this Kubota L35 Service Manual a digital download?
A 503-page Service Manual in searchable PDF, ready the moment you finish checkout. Read it on a computer, tablet, or phone, with no shipping wait.
Are there any print restrictions on this Kubota L35 manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Does this Kubota L35 manual include hydraulic schematics?
Yes. Complete hydraulic schematics are included, with flow diagrams, valve configurations, and pressure specifications.
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