Part of the Kubota Repair Manuals.
Two variants, one volume: this Workshop Manual (OEM #9Y111-18024) covers the standard RTV-XG850 and the EVAP build alike, tracing each system from EFI fuel delivery to electronic power steering across 392 pages. Wiring diagrams map every circuit in the electrical system, sitting alongside hydraulic schematics and multi-system troubleshooting charts that carry diagnostic trouble codes for the EPS ECU. Step-by-step procedures with exploded views walk through repairs, and a torque table pins down hydraulic fittings, metric hardware, and UNC/UNF threads. Fuel tank holds 32.7 liters; top it off, then torque your M8 fasteners to 18-20 N·m before buttoning anything up. When the machine is down, you want the factory answer instead of a forum guess. Everything is bookmarked by system and searchable by keyword, so you can pull it up on a tablet right at the shop floor.
What's Inside This Kubota RTV-XG850, RTV-XG850 EVAP Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | 17-35 | Safety First, Safety Labels for RTV, Care of Danger, Warning and Caution Labels, Specification Table, Traveling Speeds, Dimensions |
| General | 36-110 | Product Identification, General Precautions, Handling Precautions for Electrical Parts and Wiring, Lubricants, Fuel and Coolant, Tightening Torques, Maintenance Check List |
| Engine | 111-205 | Mechanism (Engine Body, Camshaft, Cylinder, Crankcase and Oil Pan, Piston, Connecting Rod, Balancer, Flywheel, Lubricating System, Oil Pump, Oil Filter and Relief Valve, Cooling System, Coolant Flow with Thermostat Fully Closed 66 °C, Coolant Flow with Thermostat Fully Open 84 °C, Water Pump, Thermostat, Radiator, Radiator Cap, Fuel System, Electronic Fuel Injection System, Multi-Point Injection System, Isc, Throttle Position Sensor, Tmap Sensor, O2 Sensor, Coolant Temperature Sensor, Crankshaft Position Sensor, Evapo System, Intake System) |
| Transmission | 206-252 | Mechanism (Structure of Transaxle, CVT, Range Gear Shift, Gear Positions, Front Wheel Drive, Differential Lock) |
| Suspension | 253-263 | Troubleshooting, Tightening Torques, Checking Shock Absorber, Adjusting Shock Absorber Spring, Checking Rear Knuckle Case, Rear Shock Absorber, Disconnecting Negative Battery Cable |
| Brakes | 264-298 | Mechanism (Outline of Traveling Brake, Traveling Brake, Automatic Brake Adjustment, Master Cylinder, Brake Oil, Parking Brake) |
| Front Axle | 299-321 | Mechanism (Structure of Front Axle, Limited Slip Differential, Operation of Limited Slip Differential) |
| Steering | 322-336 | Electronic Power Steering, Troubleshooting, Diagnostic Trouble Code for EPS ECU, Service Specifications for Steering, Tightening Torques, Adjusting Stopper Bolt, Removing Electric Power Steering (EPS) Motor, Disconnecting Negative Battery Cable |
| Electrical System | 337-392 | Mechanism (Location of Electrical Components, Starting System, Key Switch, Starter Solenoid, Starter, Neutral Safety Switch, Location of Relay, Charging System, Charge Coil, Regulator, Brake Lamp Switch, Lighting System, Head Light Switch, Cooling System, Fan Motor, Coolant Temperature Sensor, Traveling Speed Sensor, Gauge System, Fuel Level Sensor, Meter Panel, Easy Checker, Others, 12 V Electric Outlet) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| General use screws, bolts and nuts (M6, No-grade or 4T) | 7.9 to 9.3 N·m | p. 47 |
| General use screws, bolts and nuts (M8, No-grade or 4T) | 18 to 20 N·m | p. 47 |
| Engine Displacement | 0.851 L (51.9 cu. in.) | p. 30 |
| Fuel Tank Capacity | 32.7 L (8.6 U.S.gals) | p. 30 |
| High Range Traveling Speed | 64.4 km/h (40 mph) | p. 32 |
| Engine Oil Capacity (Filter exchanged) | 3.8 L (4.0 U.S.qts) | p. 45 |
| Transmission Fluid Capacity | 2.5 L (2.6 U.S.qts) | p. 45 |
| General Use Bolt Torque (M10, 7T) | 48 to 55 N·m (36 to 41 lbf·ft) | p. 47 |
| Wheel Fastener Torque | 130.0 to 150.0 N·m (95.89 to 110.6 lbf·ft) | p. 65 |
| Engine Oil Change Interval | Every 100 hrs (3000 km) | p. 53 |
| RTV-XG850 | ||
| Cargo Bed Capacity | 454 kg (1000 lbs) | p. 30 |
| RTV-XG850 EVAP | ||
| Cargo Bed Capacity | 272 kg (600 lbs) | p. 30 |
Kubota RTV-XG850, RTV-XG850 EVAP Common Problems This Manual Covers
Kubota RTV-XG850 cranks over but won't fire, engine won't start in cold weather
Work through the Engine Troubleshooting steps for no-start conditions, then pull ECU diagnostic codes: fuel pump, injector, and crankshaft position sensor faults all block a cold start. Verify the crankcase oil level, which holds 3.8 L (4.0 U.S.qts) with filter exchange, and confirm there's fuel in the tank (capacity 32.7 L / 8.6 U.S.gals).
Manual Section: Engine TroubleshootingCVT belt slips under load, machine loses power and bogs down on hills
Remove the CVT cover and measure belt width with calipers. Service limit is 34.5 mm (1.36 in.) per the Transmission section on page 217; replace it the moment it sits at or below that mark. Inspect the primary and secondary sheave faces for glazing or scoring, then wipe them down with a dry cloth before fitting a new belt.
Manual Section: Transmission Troubleshooting p. 217Brake pedal feels spongy or goes nearly to floor under normal braking
Bleed the brake system from the farthest caliper inward; reservoir and lines hold 0.28 L (0.3 U.S.qts). The spongy-pedal procedure lives in Brakes Troubleshooting on page 271. Inspect brake pads every 100 hrs (3000 km) per page 53, and change the fluid every 2 years per page 54, since moisture absorption softens pedal feel over time.
Manual Section: Brakes Troubleshooting p. 271Front wheels wander on straight road, steering wheel vibrates or pulls to one side
Inspect the front wheel mounting nuts and torque them to 130.0 to 150.0 N·m (95.89 to 110.6 lbf·ft) per page 65. Confirm the front axle slotted nut torque next: spec is 190 to 200 N·m per page 306. The Steering Troubleshooting steps for front wheel wander start on page 325; for torque sensor faults, pull EPS ECU diagnostic codes from page 326.
Manual Section: Steering Troubleshooting p. 325Engine temperature gauge climbs into the red zone, frequent overheating at low speeds
Check coolant level first; system capacity is 6.0 L (6.3 U.S.qts) with the reserve tank per page 45. Clear debris off the radiator fins and make sure the fan motor spins freely. Pull ECU trouble codes, where overheating and fan motor relay faults are logged. Flush and refill coolant on the 2-year schedule per page 54.
Manual Section: Engine TroubleshootingFrequently Asked Questions
What are the recommended service intervals?
The maintenance check list breaks service into intervals. Engine start system and greasing get checked every 50 hours or 1500 km, while wheel fastener torque, brake pad wear, and battery condition fall on the 100-hour (3000 km) schedule. p. 53
What fluids and capacities does this machine require?
Each system takes its own fluid and volume. The fuel tank holds 32.7 L (8.64 U.S.gals) of unleaded or regular gasoline (87 octane or higher). With the filter exchanged, the engine crankcase takes 3.8 L (4.0 U.S.qts) of API SG, SH, SJ or higher oil, and the transmission case needs 2.5 L (2.6 U.S.qts) of KUBOTA UDT or SUPER UDT-2 fluid. p. 45
How to troubleshoot engine won't start?
A no-start usually traces to one of a few faults: an empty fuel tank (page 2-21), a clogged air cleaner (page 2-30), or a damaged fuel pump (page 9-41). Wet spark plug electrodes (page 2-38) and low compression (page 2-39) will also keep it from firing. p. 132
What torque specifications are listed?
Torque figures run throughout the manual. General-use M6 bolts and nuts call for 7.9 to 9.3 N·m (0.80 to 0.95 kgf·m), and M10 hardware in property class 4T takes 40 to 45 N·m (4.0 to 4.6 kgf·m). Component-specific values apply too, such as 29.0 to 34.0 N·m (2.96 to 3.46 kgf·m) for the exhaust cover bolt. p. 47
Is this Kubota RTV-XG850, RTV-XG850 EVAP Workshop Manual a digital download?
Download the complete 392-page searchable Workshop Manual right away. It opens on any device, whether that's a laptop at your desk or a phone out in the field.
Is this Kubota RTV-XG850, RTV-XG850 EVAP Workshop Manual printable?
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Can I find wiring schematics in this Kubota RTV-XG850, RTV-XG850 EVAP manual?
Yes. You'll find full electrical schematics with wire routing diagrams, connector identification, and circuit descriptions.
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