This factory workshop manual covers the complete mechanical and electrical architecture of the Kubota F2260, F2560(E), F3060, and F3560 front-mount mowers across 11 dedicated service sections. Drivetrain coverage is unusually deep: separate chapters address the conventional Transmission, a dedicated New Hydrostatic Transmission section for the HST models, plus the Front Axle, Rear Axle, Brakes, and Steering — giving you the full power path from engine to wheels. The Hydraulic System and Electrical System chapters include circuit-level schematics and troubleshooting procedures, while a standalone Mower section handles the deck, blade drive, and engagement components. A General chapter opens with safety handling for electrical parts and wiring, fluid specifications, and machine identification, so every service task starts with the correct OEM data.
What's Inside This Kubota F2260–F3560 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| G General | 15-53 | Features, Identification, Handling Precautions For Electrical Parts And Wiring (Battery, Fuse, Connector, Handling of Circuit Tester), Lubricants, Fuel And Cooling Water |
| 1 Engine | 54-123 | - |
| 2 Transmission | 124-174 | - |
| N New Hydrostatic Transmission | 175-203 | - |
| 3 Front Axle | 204-209 | - |
| 4 Brakes | 210-221 | - |
| 5 Rear Axle | 222-243 | - |
| 6 Steering | 244-259 | - |
| 7 Hydraulic System | 260-283 | - |
| 8 Electrical System | 284-309 | - |
| M Mower | 310-338 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Front wheel mounting nut torque | 49.0 N-m (5.0 kgf-m, 36.2 ft-lbs) | p. 205 |
| Front axle case mounting screw and nut torque | 39.3 to 44.1 N-m (4.0 to 4.5 kgf-m, 29.0 to 32.5 ft-lbs) | p. 205 |
| Mower blade screw torque | 98.1 to 117.7 N-m (10.0 to 12.0 kgf-m, 72.3 to 86.8 ft-lbs) | p. 321 |
| General Use Screws, Bolts and Nuts (M8, No-grade or 4T) | 7.85 to 9.8 N-m (0.80 to 0.95 kgf-m, 5.79 to 7.23 ft-lbs) | p. 25 |
| Fan Belt Tension (Deflection) | 7 to 9 mm (0.28 to 0.35 in.) | p. 34 |
| Belt tension pulley torque | 39.3 to 44.1 N-m (4.0 to 4.5 kgf-m, 29.0 to 32.5 ft-lbs) | p. 321 |
| Adjusting Screw Length | 15 to 20 mm (Approx. 0.59 in.) | p. 183 |
| Check and High Relief Pressure | 27.9 MPa (285 kgf/cm², 4056 psi) | p. 183 |
| Battery Terminal Connection torque | 5.9 to 7.8 N-m (0.6 to 0.8 kgf-m, 4.3 to 5.8 ft-lbs) | p. 294 |
| Relief Valve Setting Pressure | 7.85 to 8.33 MPa (80 to 85 kgf/cm², 1138 to 1208 psi) | p. 249 |
| RCK60-F30 | ||
| Mower blade tip velocity | 73.0 m/s (14400 fpm) | p. 316 |
| RC72-F30 | ||
| Mower blade tip velocity | 78.2 m/s (15400 fpm) | p. 316 |
Kubota F2260–F3560 Series Common Problems This Manual Covers
Kubota F2260–F3560 Series front-mount mower hydrostatic transmission won't move machine or loses drive under load p. 157
Check charge pressure at the HST test port; factory spec is 400 to 600 kPa (58 to 87 psi) per page 183. If pressure is low, inspect the charge pump and filter for blockage. Verify the neutral adjusting screw protrudes 15 to 20 mm from the trunnion arm. Consult the troubleshooting chart on page 142 to isolate whether the fault is one-directional or total loss of drive before disassembly.
Manual Section: N New Hydrostatic TransmissionHard steering, steering force fluctuates, or front wheels turn on their own at idle p. 252
Test steering relief valve pressure; spec is 7.85 to 8.33 MPa (1138 to 1208 psi) per page 249. Verify the steering cylinder rod-end-to-rod-end length measures 451 to 453 mm (17.76 to 17.83 in.) with wheels centered. Check hydraulic fluid level and inspect for aerated fluid, then work through the steering troubleshooting chart on page 252 to confirm whether the fault is valve, cylinder, or pump origin.
Manual Section: 6 SteeringPoor braking force, uneven braking side to side, or brake drags after pedal release p. 215
Measure pedal effort at full application; factory spec is 177 to 215 N per page 215. Adjust brake linkage to equalize left and right pedal travel before measuring. Inspect brake discs and linings for glazing or contamination, then follow the brake troubleshooting procedures on page 215 to determine if the fault is mechanical adjustment, worn friction material, or a seized actuating cam.
Manual Section: 4 BrakesEngine won't start or cranks slowly in cold weather, glow system suspected p. 296
Remove each glow plug and measure resistance; a healthy plug reads approximately 0.9 ohms per page 303. Replace any plug reading open or significantly higher. Verify battery terminals are clean and torqued to 5.9 to 7.8 N-m (4.3 to 5.8 ft-lbs) per page 294. If the engine still won't start warm, run through the electrical troubleshooting sequence on page 296 to check the engine stop solenoid and seat safety control before condemning the fuel system.
Manual Section: 8 Electrical SystemMower blades not rotating or cutting quality is poor with visible uncut strips p. 332
Inspect blade attachment bolts and torque to 98.1 to 117.7 N-m (72.3 to 86.8 ft-lbs) per page 321; a loose blade will slip on the spindle and produce uncut strips. Check belt tension on the mower drive belt and verify the tension pulley bolt is torqued to 39.3 to 44.1 N-m (29.0 to 32.5 ft-lbs). Work through the mower troubleshooting chart on page 332 to separate a blade-drive belt failure from a PTO clutch or hydraulic engagement issue.
Manual Section: M MowerHydraulic deck lift responds slowly or implement won't raise under load p. 276
Verify hydraulic PTO charge pressure reads 785 to 1078 kPa using a gauge at the charge port per page 277. Check the hydraulic fluid level against the sight glass and top up to the full mark using the correct grade from the capacities table on page 24. Inspect the hydraulic filter for restriction and follow the implement troubleshooting chart on page 276 to determine if the fault is control valve, cylinder, or pump-related before opening the circuit.
Manual Section: 7 Hydraulic SystemFrequently Asked Questions
What are the torque specs for the Kubota F2260/F2560(E)/F3060/F3560 mower deck blades?
On the F2260, F2560(E), F3060, and F3560, torque the mower blade screw to 98.1 to 117.7 N·m (10.0 to 12.0 kgf·m, 72.3 to 86.8 ft-lbs). That figure applies to the general-use screws, bolts, and nuts in the mower section.
Why does my Kubota F2560 lose power under load?
When the F2560 loses power or output drops under load, the usual culprits are incorrect injection timing, seizing moving parts, uneven fuel injection, deficient nozzle injection, or a compression leak. Fixes range from adjusting the timing to repairing or replacing the affected parts and checking for a compression leak.
What are the replacement specifications for blade attachment bolts?
Blade attachment bolts (the mower blade screws) call for 98.1 to 117.7 N·m (10.0 to 12.0 kgf·m, 72.3 to 86.8 ft-lbs). Bring them to that range so the blade stays securely fastened.
What format is this Kubota F2260–F3560 Series manual in?
A searchable PDF, delivered the moment payment clears. All 338 pages download at once, ready to open on whatever device is handy in the shop.
Can I print specific sections of this Kubota F2260–F3560 Series Workshop Manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Are electrical wiring diagrams included in this Kubota F2260–F3560 Series?
Yes, they're included. Complete wiring harness diagrams, electrical circuits, and connector pinouts are all covered in the manual.
Document Quality
This document is a scanned PDF with an OCR text layer, allowing you to search and copy text from most pages. The text is generally crisp and clear, making it easy to read throughout the manual. Diagrams and illustrations are raster images, meaning they may pixelate slightly at high zoom, but labels and details are consistently readable. Pages are clean with minimal scan artifacts, and the layout is consistent, though some pages, like the section dividers, are mostly blank.
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