Part of the Kubota Repair Manuals.
This is the factory Kubota Workshop Manual for the B3300SU-AUS compact tractor, a 337 page PDF built around the three cylinder V1505-E024H diesel engine.
It walks through every system with mechanism descriptions and full servicing procedures: engine, clutch, the hydrostatic transmission and PTO drive, rear and front axles, brakes, power steering, the hydraulic system with its loader and three point hitch valves, and the electrical system with wiring diagrams. Troubleshooting charts, servicing specifications, and tightening torques accompany each section, including wheel nut and cylinder head bolt figures.
For owners and independent shops this is the same reference used to diagnose an HST whine, trace a starting fault, or carry out a complete teardown and reassembly with the correct clearances and torque values.
What's Inside This Kubota B3300SU-AUS Manual
| System | Pages | Key Topics |
|---|---|---|
| Information | - | - |
| General | - | Tractor Identification, Model Name and Serial Number, Cylinder Number, General Precautions, Wiring, Battery, Fuse, Connector |
| Engine | - | Tractor Section, Engine Section, Engine Body, Lubricating System, Cooling System, Fuel System, Preparation, Separating Engine From Clutch Housing |
| Clutch | - | Cylinder, Oil Pump, Linkage Mechanism, Operation, Preparation, Separating Engine From Clutch Housing |
| Transmission | - | Power Train for Travelling System, Hydrostatic Transmission, Power Train for PTO Gear, Rear PTO Section, Preparation, Separating Engine From Clutch Housing, Separating HST Assembly, Disassembling Clutch Housing |
| Rear Axle | - | Transmission Case, Differential Gear, Differential Gear Shaft, 57T Spur Gear, Ball Bearing, Rear Axle Case, Spiral Bevel Gear |
| Brakes | - | Linkage, Operation, Brake Pedal |
| Front Axle | - | Separating Front Axle |
| Steering | - | Steering Linkage, Power Steering, Hydraulic Circuit for Power Steering System, Preparation, Hydraulic Pump for Power Steering, Separating Power Steering Assembly, Power Steering Body |
| Hydraulic System | - | Hydraulic Circuit, Hydraulic Pump, Control Valve Assembly, Front Loader Control Valve, 3-Point Hitch Control Valve, Shim, Relief Valve, 3-Point Hitch Hydraulic System |
| Electrical System | - | Wiring Diagram, Engine Starting System and Stopping System, Opc System Circuit, Controller, Safety Switch and Engine Condition, Lighting System, Head Light, Turn Signal Light and Hazard Light |
Every system also includes servicing, tightening torques, and troubleshooting.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Front wheel mounting nut torque | 79 to 92 N·m (8.1 to 9.4 kgf·m, 59 to 67 lbf·ft) | p. 228 |
| Rear wheel mounting nut torque | 146 to 150 N·m (14.8 to 15.3 kgf·m, 107 to 110 lbf·ft) | p. 200 |
| Cylinder head screw torque | 64 to 68 N·m (6.5 to 6.9 kgf·m, 47 to 50 lbf·ft) | p. 98 |
| Transmission fluid type | KUBOTA UDT or SUPER UDT fluid | p. 23 |
| Transmission fluid capacity | 14.5 L (3.83 U.S. gals, 3.19 Imp.gals) | p. 23 |
| Engine oil filter replacement interval | Replace at 50 hours | p. 27 |
| Transmission oil filter replacement interval | Replace at 200 hours | p. 27 |
| Fuel filter element replacement interval | Replace at 200 hours | p. 27 |
| Air cleaner element (primary) cleaning interval | Clean at 50 hours | p. 27 |
| Air cleaner element (secondary) replacement interval | Replace at 200 hours | p. 27 |
| Battery type | 55B24L(S)-MF | p. 36 |
| Battery voltage | 12 V | p. 36 |
Kubota B3300SU-AUS Common Problems This Manual Covers
High-pitched HST whine
Owners report a high-pitched whine from the hydrostatic transmission, often tied to fluid type or level, that eases after switching to the correct Kubota UDT fluid. The transmission section covers the HST structure, checks, and relief valve pressures.
Manual Section: Transmission p. 139Sluggish hydraulics after warm-up
Slow or noisy hydraulic and lift response once warm usually means old or contaminated fluid, a restricted filter, or a relief valve out of spec. The hydraulic system section covers the circuit, pump, and relief valve settings.
Manual Section: Hydraulic System p. 258Hard starting or electrical faults
Starting problems and no crank conditions can trace to the battery, starter, or safety switch circuit. The electrical system section provides the wiring diagram and the starting and stopping system checks.
Manual Section: Electrical System p. 291Engine overheats or runs hot
Running hotter than normal points to low coolant, a blocked radiator, a fan belt issue, or a thermostat fault. The engine section covers the cooling system service and thermostat testing.
Manual Section: Engine p. 71Weak or dragging brakes
Brakes that feel weak or drag often need free travel adjustment or worn friction parts replaced. The brakes section covers linkage adjustment, servicing specifications, and disassembly.
Manual Section: Brakes p. 206Heavy or vague power steering
Heavy steering or wander can come from low pump delivery, air in the circuit, or worn linkage. The steering section covers the power steering hydraulic circuit and pump service.
Manual Section: Steering p. 238Frequently Asked Questions
Which model and engine does this manual cover?
It covers the Kubota B3300SU-AUS compact tractor, powered by the three cylinder V1505-E024H diesel. Procedures span the engine, clutch, hydrostatic transmission, axles, brakes, steering, hydraulics, and electrical systems.
Does it list torque and servicing specs?
Yes. Every section carries servicing specifications and tightening torques, including wheel nut and cylinder head bolt figures. The Engine section, from page 71, sets out the engine servicing specs and torque values. p. 71
Does it cover the hydrostatic transmission?
Yes. The Transmission section covers the hydrostatic transmission and PTO drive with structure, troubleshooting, servicing specifications, and the high pressure relief valve setting, for diagnosis and full teardown. p. 139
How is the manual delivered?
It is an instant download. After checkout you receive the PDF file to save and keep, with no physical shipment to wait for.
How quickly can I access this manual after buying?
Checkout triggers an instant download of the full 337-page searchable PDF. Open it on a laptop, tablet, or phone and take it straight to the shop floor.
Is this Kubota B3300SU-AUS Workshop Manual printable?
The PDF is DRM-free, so print whatever sections you need for the shop. Standard letter or A4 paper both work.
Are there wiring harness diagrams in this Kubota B3300SU-AUS manual?
Yes. It includes complete electrical wiring diagrams, wire routing, and connector pinouts.
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