This is the operator's manual for the Kubota M108S tractor, powered by the V3800-DI-TI diesel engine. It runs 124 pages and covers the machine from front to back: starting and running the engine, operating the tractor, the PTO, three point hitch, hydraulic unit, tires and ballast, cab controls, and the full maintenance and periodic service schedule.
With it you can find the specifications you need, follow the correct service intervals, set tire pressures and wheel torque, and work through the built in troubleshooting for starting, power, and overheating problems. Whether you run the M108S daily or are bringing one back into service, it puts the factory procedures and settings in one place.
Delivered as a downloadable PDF you can read on a phone, tablet, or computer, or print the pages you need for the shop.
What's Inside This Kubota M108S Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety First | 11-20 | Careful Operation, Working Safely, Danger Warning and Caution Labels, First Aid Kit, Implement Lowering, Escaping Hydraulic Fluid Hazard |
| Servicing of Tractor | 21 | |
| Specifications | 22-25 | Cold Weather Starting, Block Heater (if equipped), Stopping The Engine, Warming Up, Jump Starting, Operating New Tractor, Changing Lubricating Oil for New Tractors, Starting |
| Implement Limitations | 26-27 | Turn Signal / Hazard Light Switch, Horn Button, Brake Pedals (Right and Left) |
| Instrument Panel and Controls | 28-31 | Clutch Pedal, Main Gear Shift Lever, Range Gear Shift Lever, Hydraulic-Shuttle Shift Lever, Creep Lever (if equipped), Front Wheel Drive Lever |
| Pre-Operation Check | 32 | Hand Throttle Lever, Foot Throttle, Parking Brake Lever |
| Operating the Engine | 33-37 | Starting the Engine, Cold Weather Starting (Block Heater), Stopping the Engine, Warming Up (Warm-Up and Transmission Oil at Low Temperature Range), Jump Starting |
| Operating the Tractor | 38-55 | Operating New Tractor (Do Not Operate the Tractor at Full Speed for the First 50 Hours, Changing Lubricating Oil for New Tractors) |
| PTO | 56-57 | Changing Display Mode, PTO Speed Display Mode Switching, Entering the Travel Speed Coefficient |
| Point Hitch & Drawbar | 58-62 | Rear Wheels, Ballast, Front Ballast, Rear Ballast, Door And Window, Locking and Unlocking the Door, Opening the Door, Rear Window |
| Hydraulic Unit | 63-69 | Work Light, Work Light Switch, Front Work Light, Rear Work Light, Wiper, Front Wiper / Washer Switch, Rear Wiper / Washer Switch (if equipped), Using the Wipers in Cold Season |
| Tires, Wheels and Ballast | 70-74 | Tires (Inflation Pressure, Dual Tires), Wheel Adjustment (Front Wheels, Front Wheel Turning Stopper Bolt, Rear Wheels), Ballast (Front Ballast, Rear Ballast) |
| Cab Operation | 75-85 | Door and Window (Locking and Unlocking the Door, Opening the Door, Rear Window, Side Window), Dome Light, Work Light (Switch, Front Work Light, Rear Work Light) |
| Maintenance | 86-90 | Checking Battery Condition, Cleaning Air Cleaner Primary Element, Adjusting Fan Belt Tension, Adjusting Brake Pedal, Adjusting Parking Brake Lever, Every 200 Hours, Checking Oil Cooler Line, Adjusting Toe-in |
| Periodic Service | 91-121 | How to Open the Hood |
| Storage | 122 | Tractor Storage, Removing the Tractor From Storage, Bolts and Nuts, Grease Application, Tire Inflation, Engine Oil Change |
| Troubleshooting | 123 | Engine Starting Difficulty, Engine Power Insufficiency, Engine Sudden Stop, Exhaust Fumes Color, Engine Overheating |
| Options | 124 | Engine Block Heater, Double Acting Remote Hydraulic Control Valve, Flow Control Valve Kit, Front End Weights, Rear Wheel Weights, Creep Speed Kit |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel bolt torque (1), (2), (3) | 260 to 303 N-m (26.5 to 31.0 kgf-m) | p. 78 |
| Wheel bolt torque (4) | 343 to 401 N-m (35.0 to 41.0 kgf-m) | p. 78 |
| Battery capacity | 12V, RC: 160 min, CCA 900A | p. 22 |
| Battery Volts (V) | 12 | p. 81 |
| Starter relay fuse capacity | 5A | p. 118 |
| Meter backup fuse capacity | 5A | p. 118 |
| Flasher (Hazard) fuse capacity | 15A | p. 118 |
| Fuel filter replacement interval | every 500 Hr | p. 86 |
| Engine Oil Capacity (with filter) | 10.7 L | p. 22 |
| Fuel Tank Capacity | 175 L | p. 22 |
| Coolant Capacity | 9.6 L | p. 22 |
| Hydraulic Pump Capacity | 65 L/min | p. 23 |
