This is the Kubota M108S Low Profile workshop manual, a 464-page PDF covering the low-profile M108S tractor and its V3800-CR-TI common rail diesel engine. It follows Kubota's factory service documentation (publication 9Y111-16183) and is organized system by system.
Inside you get full engine work, the traveling clutch, the shuttle shift transmission, front and rear axles, brakes, steering, and the three point hitch hydraulic system, plus complete wiring diagrams for the main, engine, and bonnet harnesses. The General section carries tractor identification, lubricants, and tightening torques, and verified capacities include a 175 L fuel tank, 10.7 L engine oil, and a 60 L transmission case.
Owners and independent mechanics get the specifications, torque values, and procedures needed to service, troubleshoot, and rebuild the M108S Low Profile to Kubota standards.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | 4-18 | |
| General | 19-98 | Tractor Identification, Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector, Handling of Circuit Tester, Color of Wiring), Lubricants, Fuel and Coolant |
| Engine | 99-189 | Feature, Engine Body (Cylinder Block, Half-Floating Head Cover, Cylinder Head, Center Direct Injection System, Piston, Built-In Dynamic Balancer), Lubricating System (Oil Cooler) |
| Clutch | 190-203 | Traveling Clutch, Damper Disc, Propeller Shaft, Differential Lock Spring, Brake Oil Tank, Engine, Clutch Housing |
| Transmission | 204-298 | Structure, Shuttle Shift Mechanism (Shuttle Shift Section, Regulator Valve, Hydraulic Shuttle Valve) |
| Rear Axle | 299-310 | Planetary Gear Support, Planetary Gear, Rear Axle Nut, Rear Axle Cover |
| Brakes | 311-332 | Brake Pedal, Master Cylinder, Equalizer, Parking Brake Lever, Brake Pad, Brake Plate, Friction Plate, Rear Axle Case |
| Front Axle | 333-359 | Propeller Shaft, Front Wheel, Power Steering Hoses, Tie-Rod, Front Differential Case, Bevel Gear Case, Front Wheel Case |
| Steering | 360-376 | Steering Mechanism, Hydraulic Pump, Regulator Valve, Steering Controller, Steering Cylinder, Relief Valve, Gerotor Assembly, Sleeve and Spool |
| Hydraulic System | 377-409 | Mechanism, Structure, Hydraulic Circuit, Point Hydraulic System, Control Valve, Position Control, Servicing, Troubleshooting |
| Electrical System | 410-464 | Wiring Diagram (Main Harness, Engine Harness, Bonnet Harness) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel Tank Capacity | 175 L | p. 29 |
| Engine Crankcase Oil Capacity | 10.7 L | p. 29 |
| Engine Oil Capacity | 10.7 L | p. 15 |
| Transmission Case Capacity | 60 L | p. 15 |
| Engine Oil Pressure (At Rated Speed) | 200 to 390 kPa | p. 136 |
| Thermostat Valve Opening Temperature | 74.5 to 78.5 °C | p. 136 |
| Cylinder Head Surface Flatness | 0.05 mm | p. 132 |
| Clutch Pedal Free Travel | Below 15 mm | p. 196 |
| Brake Pedal Free Travel | 7 to 14 mm | p. 316 |
| Front Wheel Alignment Toe-in | 2.0 to 8.0 mm | p. 338 |
| Hydraulic Pump Delivery (3-Point Hitch) | 66.6 L/min. | p. 389 |
| Tire Pressure (Front 9.5-20, 6PR) | 200 kPa | p. 92 |
