Part of the Kubota Repair Manuals.
This is the Kubota L2501 Workshop Manual, the factory service manual for the L2501 compact tractor powered by the D1703-M-DI-E4 diesel engine. It documents the machine in both gear-drive and hydrostatic (HST) forms, from identification and routine maintenance to complete component overhaul.
Coverage spans the engine, clutch, transmission, rear and front axles, brakes, steering, the hydraulic system, and the electrical system with full wiring diagrams. Each section provides troubleshooting charts, servicing specifications, tightening torques, and detailed checking, disassembly, and assembly procedures.
If you are working through an HST that drops power on hills, a no-start, or hydraulics acting up after a fluid change, this PDF download gives an owner or independent mechanic the factory numbers and steps to fix it correctly. The manual is fully searchable and prints on standard paper for shop use.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| G General | Tractor Identification (Model Name and Serial Numbers, Cylinder Number) | |
| Engine | Engine Body (Piston, Half-Floating Head Cover), Fuel System (Outline, Governor, Injection Nozzle), Cooling System | |
| Clutch | Structure, Troubleshooting, Servicing Specifications (Single Stage Clutch), Tightening Torques, Checking and Adjusting (Clutch Pedal Free Travel) | |
| Transmission | Structure (Manual Transmission Type, HST Type) | |
| Rear Axle | Structure, Troubleshooting, Tightening Torques | |
| Brakes | Features, Operation, Troubleshooting, Servicing Specifications, Tightening Torques, Checking and Adjusting (Brake Pedal Free Travel) | |
| Front Axle | Structure (2WD, 4WD), Troubleshooting, Servicing Specifications (2WD, Tightening Torques (2WD | |
| Steering | Structure, Hydraulic Circuit, Steering Gear Box (Structure, Operation) | |
| Hydraulic System | Structure (Manual Transmission Type, HST Type), Hydraulic Circuit (Manual Transmission Type | |
| Electrical System | Wiring Diagram (Manual Transmission Type, HST Type), Electrical Circuit (Manual Transmission Type, Instrument Panel (Indication Items of Meter Panel, Easy Checker™) |
Documents This Manual Refers To
The manufacturer cites these publications by number. We carry them:
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| General Use Screws, Bolts and Nuts (M8 Ordinariness) | 18 to 20 N·m | p. 26 |
| Front wheel bolt and nut tightening torque | 137 N·m | p. 36 |
| Rear wheel bolt and nuts tightening torque | 215 N·m | p. 36 |
| Battery Voltage | 12 V | p. 11 |
| Battery CCA (SAE) | 490 A | p. 11 |
| Commutator O.D. (Factory Specification) | 30.0 mm | p. 414 |
| Brush Length (Factory Specification) | 15.0 mm | p. 414 |
| Fuel Level Sensor Resistance (Float at upper-most position) | 1 to 5 Ω | p. 439 |
| Transmission/Front Axle Case Hydraulic Fluid Type | KUBOTA SUPER UDT-2 fluid | p. 24 |
| Range Gear Shift Lever Switch Resistance (When switch is pushed) | 0 Ω | p. 419 |
| Relief Valve Setting Pressure (Three Point Hitch System) | 15.2 to 16.2 MPa | p. 361 |
| Fuel tank capacity | 38.0 L | p. 11 |
