Part of the Kubota Repair Manuals.
This is the full Kubota RTV520 workshop manual, a 390-page PDF covering the RTV520 utility vehicle and its GZ520 gasoline engine. It is the same service documentation Kubota technicians work from, organized by system so you can go straight to the repair you need.Inside you get engine teardown and reassembly, the transaxle, front axle, suspension, brakes, manual steering, and the full electrical system with component locations. The Maintenance section lists service intervals, lubricants, and fuel and coolant data, while the General section carries tightening torques and hydraulic fitting specs. Verified figures include the 0.514 L displacement, a 19.2 L fuel capacity, and a 1.35 L crankcase oil capacity with the filter changed.Whether you are doing routine service or a full rebuild, this manual gives owners and independent mechanics the specs, procedures, and torque values to work on the RTV520 with confidence.
What's Inside This Kubota RTV520 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 19-32 | Working Precautions, Preparing for Emergencies, Working Cautions, Starting Machine Safely, Preventing Fires, Preventing Acid Burns, Avoiding High Pressure Fluid |
| General | 33-69 | Tightening Torques (Stud Bolts), Hydraulic Fittings (Hydraulic Hose Fittings, Hydraulic Pipe Cap Nuts, Adapters, Elbows and Others), Metric Screws, Bolts and Nuts |
| Maintenance | 70-102 | Service Intervals, Lubricants, Fuel and Coolant |
| Engine | 103-175 | Engine Body (Function: Cylinder Head, Camshaft, Crankcase, Piston, Connecting Rod, Balancer, Crankshaft, Flywheel) |
| Transaxle | 176-254 | Outline of a Transaxle, Traveling System, Hydrostatic Transmission (HST), Structure of HST (Hydrostatic Transmission), Structure of Servomechanism, Operation of Regulator and Servo Piston, Function of Charge Relief Valve, Function of Anti-Cavitation Valve |
| Suspension | 255-267 | Front Suspension, Rear Suspension, Servicing, Tightening Torques |
| Brakes | 268-296 | Traveling Brake, Automatic Brake Adjustment, Master Cylinder, Brake Oil |
| Front Axle | 297-319 | Structure of Front Axle, Troubleshooting for Front Axle, Service Specifications for Front Axle, Tightening Torques for Front Axle, Adjusting Toe-In, Checking Toe-In, Knuckle Case |
| Steering | 320-330 | Structure of Steering Linkage, Structure of Manual Steering, Troubleshooting for Steering, Tightening Torque for Steering, Manual Steering, Steering Linkage, Checking Bearing |
| Electrical System | 331-390 | Location of Electrical Components |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| General use screws, bolts and nuts (M10, Ordinariness 4) | 40 to 45 N·m (4.0 to 4.6 kgf·m, 29 to 33 lbf·ft) | p. 35 |
| General use screws, bolts and nuts (M10, Ordinariness 7T) | 48 to 55 N·m (4.9 to 5.7 kgf·m, 36 to 41 lbf·ft) | p. 35 |
| Engine Displacement | 0.514 L | p. 41 |
| Net power | 13.0 kW (17.4 HP) / 3600 rpm | p. 41 |
| Fuel capacity | 19.2 L | p. 41 |
| Tire inflation pressure | 97 kPa (14 psi) | p. 49 |
| Engine crankcase oil capacity (filter exchanged) | 1.35 L | p. 74 |
| Transmission case oil capacity | 9.0 L | p. 74 |
| Spark plug gap | 0.6 to 0.7 mm | p. 91 |
| Valve clearance (cold) | 0.13 to 0.17 mm | p. 126 |
| Compression pressure | 1.27 MPa (184 psi) | p. 126 |
| Radiator cap specified pressure | 88 kPa (13 psi) | p. 128 |
Kubota RTV520 Common Problems This Manual Covers
Hard starting or weak spark
Gasoline RTV520 units can start hard when the spark plug gap drifts or ignition parts wear. The Engine section covers plug gap, valve clearance, and compression checks to trace the fault.
Manual Section: Engine p. 103Spongy or long brake pedal
Excess pedal free travel or a soft feel usually points to worn friction surfaces, air in the lines, or a master cylinder issue. The Brakes section covers adjustment, bleeding, and master cylinder service.
Manual Section: Brakes p. 268Loss of drive or transaxle noise
Whining, slipping, or lost drive on the RTV520 typically traces to the transaxle. The Transaxle section details its structure and servicing so you can pinpoint the fault.
Manual Section: Transaxle p. 176Front axle noise and play
Clunks or wander from the front end often come from worn front axle components. The Front Axle section provides structure, servicing, troubleshooting, and service specifications.
Manual Section: Front Axle p. 297Loose or wandering steering
Excess play at the wheel usually points to a worn steering linkage or manual steering gear. The Steering section covers structure, servicing, and troubleshooting.
Manual Section: Steering p. 320Charging or lighting faults
Dead batteries, dim lights, or dead accessories point to the charging or wiring circuits. The Electrical System section maps component locations and circuits for diagnosis.
Manual Section: Electrical System p. 331Frequently Asked Questions
Which machine does this manual cover?
It covers the Kubota RTV520 utility vehicle with the GZ520 gasoline engine, across every system from the engine to the electrical circuits. It is a 390-page workshop manual.
What is the fuel tank capacity?
The RTV520 holds 19.2 L (5.1 U.S. gallons) of fuel. The Maintenance section lists the full fluid capacities and service intervals. p. 70
Does it include wiring diagrams and electrical info?
Yes. The Electrical System section maps component locations and circuits for the RTV520 so you can trace charging, lighting, and accessory faults. p. 331
Are torque specifications included?
Yes. The General section lists tightening torques for screws, bolts, nuts, stud bolts, and hydraulic fittings, for example 40 to 45 N·m for M10 general-use bolts. p. 33
What do I get after purchasing this Kubota RTV520 manual?
Download is instant. The full 390-page searchable Service Manual lands in your account right after payment, ready to open on a laptop, tablet, or phone in the shop.
Are there any print restrictions on this Kubota RTV520 manual?
Yes. The PDF carries no DRM restrictions, so you can print any page or section you need for the shop. It works with any standard printer.
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