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 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) | |
| 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 |
