This is the operator manual for the Kubota B1550HST and B1750HST compact tractors, including the HSE two wheel drive and HSD four wheel drive versions, powered by the Kubota D850-5B and D950-5B diesel engines. It is a 60 page PDF with a searchable text layer, covering models built from 1990 to 1997.
The manual covers safe operation, full specifications, implement limitations, the instrument panel and controls, the three point hitch, wheels and ballast, and day to day operating instructions. A detailed check and maintenance section handles fuel, engine oil, transmission fluid, the front axle, radiator, air cleaner, and battery, followed by adjustments and a troubleshooting chart.
Owners use it to run the tractor safely, follow the correct service intervals, set wheel nut torque and belt tension to spec, and work through engine, tractor, and battery troubleshooting when something goes wrong.
Complete the set for your B1550–B1750 Series
What's Inside This Kubota B1550–B1750 Series Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safe Operation | Before Operating the Tractor, Operating the Tractor, Driving the Tractor on the Road, Stopping the Tractor, Operating the PTO, Using 3-Point Hitch, Servicing the Tractor, Jump Starting Instructions and Precautions, Warning and Caution Labels, Care of Warning and Caution Labels | |
| Servicing of Tractor | Dealer Service Information, Tractor Serial Number Location, Engine Serial Number Location, Model and Serial Number Record | |
| Specifications | Specification Table B1550hse / B1550hsd, Specification Table B1750hse / B1750hsd, Traveling Speeds B1550hst, Traveling Speeds B1750hst | |
| Implement Limitations | Implement Limitations Table B1550hst, B1750hst, Loading Weight Diagrams, Implement Specifications Table | |
| Operating New Tractor | Do Not Operate the Tractor at Full Speed or Load for the First 100 Hours, Changing Lubricating Oil for New Tractors, Loading and Unloading | |
| Instrument Panel and Controls | Switches, Controls, Auxiliary Hydraulics | |
| Three-Point Hitch & Drawbar | Top Link, Lifting Rod, Check Chains, Chain Adjustment by Implement Type | |
| Wheels, Tires and Ballast | Treads, Wheel Hub, Tires, Ballast, Toe-In | |
| Operating Instructions | Operating the Engine, Operating the Tractor, Pulling, Check During Driving, Directions for Operating | |
| Maintenance | Daily Check, Lubricants, Maintenance Check List | |
| Check and Maintenance | Fuel, Engine Oil, Transmission Fluid, Front Axle and Steering, Radiator, Air Cleaner, Battery | |
| Adjustments | Fan Drive Belt, Clutch, Brake, Steering Wheel | |
| Troubleshooting | Engine Troubleshooting, Tractor Troubleshooting, Battery Troubleshooting | |
| Long-Term Storage | Storage Procedure, Clutch Pedal Wooden Block, Options, Smv Emblem, Drawbar | |
| Lubricant Specifications | Engine Oil (Engine Oil Viscosity Chart), Transmission Oil (Recommended Oils by Brand Name), Other Lubricants, Kubota Lubricants | |
| Wiring Diagram | A Type, Color of Wire Harness, B Type |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Rear wheel nut torque | 10-17kgf-m (72-123ft-lbs.) | p. 27 |
| Front wheel nut torque | 7.9-9.2kgf-m (57-67ft-lbs.) | p. 27 |
| Fuel filter replacement interval | 400 hours | p. 35 |
| Fuel filter cleaning interval | 100 hours | p. 35 |
| Engine oil filter cartridge replacement interval | 200 hours | p. 35 |
| Transmission (hydraulic) oil filter cartridge replacement interval | 300 hours | p. 35 |
| Air filter element cleaning pressure | 205 kPa (2.1 kgf/cm²; 30 psi) | p. 43 |
| Air filter element replacement interval | Every year or every 6 times of cleaning | p. 35 |
| Radiator screen cleaning interval | Daily or every 5 hours | p. 43 |
| Battery electrolyte specific gravity (temperate climate, fully charged) | 1.260 to 1.275 | p. 44 |
| Battery normal charging rate (Type 50B24L) | 4.5 A | p. 45 |
| Fan drive belt deflection | 10 mm (0.4 in.) | p. 46 |







