This Kubota RTV900 workshop manual is the factory service documentation for the RTV900 utility vehicle, covering the D902-E-UV, D902-E2-UV, and D902-E3-UV diesel engines across serial ranges up to 4Z9999, from 5A0001, and the new RTV900 from serial 99438 and above. It runs 553 pages, organized into General, Mechanism, and Servicing parts.
Coverage includes the engine, hydrostatic transmission, front and rear axles, brakes, steering, hydraulic system, and electrical system, plus dedicated sections for the hydraulic utility model, the new transmission, and the new RTV900. You get wiring diagrams, hydraulic circuits, torque values, factory specifications, and allowable limits.
Owners, independent mechanics, and restorers can use it to diagnose a loss of drive, service the HST, adjust the brakes, replace worn drive shaft boots, or trace an electrical fault. It is a downloadable PDF you can search on any device or print by the page.
Complete the set for your RTV900
- Operator Manual: Kubota RTV900 Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| G General | 15-78 | Product Identification, Electrical Parts and Wiring, Lubricants, Fuel and Coolant, Screws, Bolts and Nuts, Plugs, Maintenance Check List |
| Engine | 79-139 | Engine Body, Lubricating System, Cooling System, Fuel System, Cylinder Head and Valves, Crankshaft |
| Transmission | 140-209 | Hydrostatic Transmission (HST), Range Gear Shift Section, Front Wheel Drive Section, Bypass Valve, Front Case, Transmission Case |
| Rear Axle | 210-220 | Propeller Shaft, Leaf Spring, Shock Absorber, Bearing, Oil Seal |
| Brakes | 221-248 | Knuckle (Front Brake), Rear Brake, Master Cylinder, Parking Brake, Brake Disc, Friction Plate |
| Front Axle | 249-277 | Front Suspension, Differential Pinion, Differential Side Gear, Bevel Pinion Gear Assembly, Drive Shaft Boot |
| Steering | 278-297 | Steering Controller, Steering Cylinder, Hydraulic Pump, Hydraulic Circuit, Power Steering Hose |
| Hydraulic System | 298-323 | Hydraulic Circuit, Hydraulic Pump, Hydraulic Cylinder, Control Valve, Hydraulic Outlet Valve, Oil Cooler |
| Electrical System | 324-374 | Wiring Diagram, Starting System, Charging System, Lighting System, Cooling System, Gauges |
| Hydraulic Utility Model | 375-450 | Tractor Identification, Electrical Parts, Wiring, Battery, Fuse, Connector, Lubricants, Fuel |
| New Transmission | 451-478 | Bypass Valve, Control Linkage for Bypass Valve, Brake Rod, Transmission Fluid, Coolant, Battery, Cargo Bed, Muffler Cover |
| New Rtv900 | 479-553 | Transmission Mechanism, Safety Decals, Lubricants, Fuel, Coolant, Maintenance Check List, Tires, Power Train |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine mounting screw torque | 17.7 to 20.5 N·m (1.8 to 2.1 kgf·m, 13.1 to 15.1 lbf·ft) | p. 95 |
| Rear wheel mounting screw torque | 75.0 to 90.2 N·m (7.6 to 9.2 kgf·m, 55.3 to 66.5 lbf·ft) | p. 215 |
| Relief valve setting pressure (Factory spec) | 14.7 to 15.7 MPa (150 to 160 kgf/cm², 2133 to 2276 psi) | p. 317 |
| Hydraulic lift oil filter (Yellow color) replacement interval | Initial 50 hours of operation | p. 29 |
| Oil filter bracket mounting screw torque | 18 to 20 N·m (1.8 to 2.1 kgf·m, 13 to 15 lbf·ft) | p. 520 |
| Air cleaner primary element replacement interval | Once yearly or after every sixth cleaning, whichever comes first | p. 50 |
| Radiator hose and clamp replacement interval | Every 2 years or earlier if checked and found that hoses are swollen, hardened or cracked. | p. 55 |
| Brake Pedal Play (Factory spec) | 7 to 14 mm (0.28 to 0.55 in.) | p. 231 |
| Brake Disc Thickness (Allowable limit) | 3.0 mm (0.118 in.) | p. 231 |
| Joint boot replacement condition | If the boots are cuts, cracked or deterioration, replace the new one. | p. 38 |
| Drive shaft boot replacement condition | Replace the internal circlip, boot and boot band with new ones. | p. 277 |









