This is the Kubota workshop manual for the B2320HSD and B2920HSD hydrostatic compact tractors, supplied as a 370-page PDF download. It documents the D1005 and D1305 diesel engines and the front loader hydraulic setup used on these models.
The manual works system by system: engine, clutch, transmission, rear axle, brakes, front axle, steering, hydraulic system, and the electrical system with its wiring diagrams and the OPC safety circuit. Each section pairs the mechanism with servicing, giving you troubleshooting, factory specifications, tightening torques, and the checking and disassembly procedures.
Use it for genuine repair work on these tractors: torque values, servicing specifications, allowable wear limits, and step-by-step procedures aimed at owners and independent mechanics doing the work themselves.
Complete the set for your B2320HSD, B2920HSD
- Operator Manual: Kubota B2320, B2620, B2920 Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety First | Safety Starting, Avoid Fires, Prepare for Emergencies | |
| Safety Decals | Care of Danger, Warning and Caution Labels | |
| Specifications | Model (PTO Power, Engine, Capacities, Transmission Case, Dimensions, Weight, Clutch, Travelling System, Hydraulic System, PTO System), Travelling Speeds | |
| General | Tractor Identification (Model Name and Serial Number), Cylinder Number (Wiring, Battery, Fuse, Connector, Handling of Circuit Tester), Lubricants, Fuel and Coolant | |
| Engine | Engine Body (Closed Breather, Half-Floating Head Cover [D1305]), Governor, Troubleshooting, Servicing Specifications, Tightening Torques, Checking | |
| Clutch | Linkage Mechanism, Troubleshooting, Servicing Specifications, Tightening Torques, Checking | |
| Transmission | Structure, Power Train for Travelling System (Hydrostatic Transmission, Hi-Mid-Lo Gear Shift Section, Front Wheel Drive Section) | |
| Rear Axle | Structure, Troubleshooting, Tightening Torques, Disassembling and Servicing (Disassembling and Assembling) | |
| Brakes | Linkage, Operation, Troubleshooting, Servicing Specifications, Tightening Torques, Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling) | |
| Front Axle | Structure, Troubleshooting, Servicing Specifications, Tightening Torques, Checking, Disassembling and Servicing (Checking and Adjusting, Disassembling and Assembling) | |
| Steering | Structure (Steering Linkage, Power Steering), Troubleshooting, Servicing Specifications, Tightening Torques, Checking | |
| Hydraulic System | Hydraulic Circuit (Hydrostatic Transmission with Front Loader Valve), Hydraulic Pump, Front Loader Valve Assembly (Structure, Operation) | |
| Electrical System | Wiring Diagram, Engine Starting System and Stopping System (Opc System Circuit, Function of Opc Controller) |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Front loader pipe joint bolt torque | 48 to 56 N-m (4.9 to 5.7 kgf-m, 36 to 41 lbf-ft) | p. 27 |
| Rear wheel mounting nut torque | 145 to 150 N-m (14.8 to 15.3 kgf-m, 107 to 111 lbf-ft) | p. 27 |
| Front wheel mounting nut torque | 79 to 92 N-m (8.1 to 9.1 kgf-m, 59 to 67 lbf-ft) | p. 27 |
| Hydraulic oil filter (for HST) replacement interval | 400 hours | p. 29 |
| Engine oil filter replacement interval | 200 hours | p. 29 |
| Fuel filter element replacement interval | 400 hours | p. 29 |
| Air cleaner element (Primary) cleaning interval | 100 hours | p. 29 |
| Fan belt tension (deflection at 98 N force) | 7.0 to 9.0 mm (0.28 to 0.35 in.) | p. 40 |
| Radiator hose and clamp replacement interval | 400 hours | p. 29 |
| Battery voltage | 12 V | p. 37 |
| Battery capacity at 5 H.R. | 36 | p. 37 |
