This is the Kubota workshop (shop) manual for the B2301 and B2601 tractors, publication 9Y111-11560, covering machines powered by the D1005-E4-D32 and D1105-E4-D32 diesel engines. Its 341 pages are written for the person doing the repair, with mechanism descriptions, checking and adjusting procedures, disassembly and assembly steps, and full servicing specifications.The manual is organized into Information, General, Engine, Transmission, Rear Axle, Brakes, Front Axle, Steering, Hydraulic System, and Electrical System sections. You get tightening torques, valve clearances, charge pressures, wiring diagrams, troubleshooting charts, and the special tools Kubota specifies for each job.Whether you are rebuilding the hydrostatic transmission, tracing a no-start on the electrical circuit, or setting brake free travel, this PDF gives you the factory service data and step-by-step procedures behind the work.
What's Inside This Kubota B2301, B2601 Manual
| System | Pages | Key Topics |
|---|---|---|
| I Information | - | - |
| G General | - | Tractor Identification, Handling Precautions for Electrical Parts and Wiring (Battery, Fuse, Connector, Handling of Circuit Tester, Color of Wiring), Lubricants, Fuel and Coolant |
| Engine | - | Engine Body (Closed Breather, Governor), Checking, Disassembling and Servicing (Checking and Adjusting, Preparation, Disassembling and Assembling), Servicing Specifications |
| Transmission | - | Front Case, Hydrostatic Transmission (Structure, Pump and Motor, Oil Flow and Valves, Control Linkage), Speed Set Device (Speed Set Linkage), Range Gear Shift Section |
| Rear Axle | - | Diassembling and Servicing (Diassembling and Assembling), Structure |
| Brakes | - | Linkage, Operation, Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling), Servicing Specifications |
| Front Axle | - | Structure (Wheel Drive Model), Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling), Servicing Specifications |
| Steering | - | Steering Controller, Steering Cylinder, Hydraulic Circuit, Hydraulic Pump, Checking, Disassembling and Servicing, Servicing Specifications |
| Hydraulic System | - | Front Loader Control Valve (Structure, Operation), Remote Control Valve, Hydraulic Outlet, Hydraulic Circuit, Hydraulic Pump, Checking |
| Electrical System | - | Wiring Diagram, Engine Starting System and Stopping System (Opc System Circuit, Controller, Safety Switch, Starter, Engine Stop Solenoid, Glow Plug), Charging System |
Every system also includes tightening torques, and troubleshooting.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Rear wheel mounting nut Tightening torque | 145 to 150 N·m | p. 35 |
| Front loader valve pipe joint bolt Tightening torque | 48 to 70 N·m | p. 163 |
| Fuel filter element Replacement Interval | every 400 Hr | p. 28 |
| Air cleaner element [Primary element] Replacement Interval | every 1 year | p. 28 |
| Hydraulic oil filter Replacement Interval | every 400 Hr | p. 28 |
| Fuel line Replacement Interval | every 2 years | p. 28 |
| Battery terminal Greasing Type | Multipurpose type grease NLGI-2 or NLGI-1 (GC-LB) | p. 23 |
| Fan belt tension | A deflection of between 7.0 to 9.0 mm | p. 39 |
| Brake Pedal Free Travel | 30 to 40 mm | p. 216 |
| Charge pressure | 0.4 to 0.6 MPa | p. 164 |
| B2301 | ||
| PTO Power | 17.5 kW (13.0 HP) | p. 11 |
| B2601 | ||
| PTO Power | 19.5 kW (14.5 HP) | p. 11 |
Kubota B2301, B2601 Common Problems This Manual Covers
Engine starts then dies after fuel service
Air trapped in the fuel system after a filter or line change makes the engine stumble or quit until it is bled. The engine section covers troubleshooting, checking, and the servicing steps to purge air and restore steady running.
Manual Section: 1 Engine p. 69Weak loader or implement hydraulics
Loss of hydraulic performance can follow low charge pressure, contamination, or component wear. The hydraulic system section covers the control and remote valves, hydraulic circuit, and pump, with checking procedures to find the fault.
Manual Section: 7 Hydraulic System p. 258Brake pedal travel out of spec
Poor stopping or excess pedal travel usually means the brakes need adjustment. The brakes section gives the checking and adjusting procedure and the free travel target of 30 to 40 mm.
Manual Section: 4 Brakes p. 210Intermittent starting or electrical faults
Hard or intermittent starting can trace to the safety switch, starter, engine stop solenoid, or glow plug circuit. The electrical system section provides the wiring diagram and starting-system checks to isolate the problem.
Manual Section: 8 Electrical System p. 298Overheating or lost power under load
Neglected service intervals, a dirty radiator screen, or low coolant can push temperatures up under load. The general section holds the maintenance check list and periodic checks that keep the cooling system in shape.
Manual Section: G General p. 14Weak hydrostatic drive response
Sluggish or weak drive can come from the hydrostatic transmission, its charge circuit, or control linkage. The transmission section details the HST structure, pump and motor, oil flow and valves, and the servicing steps.
Manual Section: 2 Transmission p. 127Frequently Asked Questions
Which models and engines does this shop manual cover?
It covers the Kubota B2301 and B2601 tractors, which use the D1005-E4-D32 and D1105-E4-D32 diesel engines. The information section lists specifications, traveling speeds, and dimensions for both models.
What are the wheel bolt torque specifications?
The tightening torques section gives a front wheel mounting nut torque of 78 to 90 N·m and a rear wheel mounting nut torque of 145 to 150 N·m, among the other fastener values. p. 26
Does it include wiring diagrams?
Yes. The electrical system section provides the wiring diagram along with the starting, stopping, and charging system circuits, safety switch, starter, engine stop solenoid, and glow plug details. p. 298
How is the manual delivered?
You receive an instant download after purchase, so the PDF is available right away and remains yours to reopen for every future repair.
How quickly can I access this manual after buying?
A 341-page Shop Manual in searchable PDF format, available the moment you complete checkout. View it on a computer, tablet, or phone, with no shipping wait.
Can I print just the pages I need from this Kubota B2301 manual?
The PDF is DRM-free, so print whatever sections you want to take out to the shop. Standard letter or A4 paper works.
Does this Kubota B2301 manual show the hydraulic circuits?
Yes. Complete hydraulic schematics with flow diagrams, valve configurations, and pressure specifications are included.
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