Part of the Kubota Repair Manuals.
This is the factory operator manual and parts catalog for the Kubota B2550 front-mount snowblower, publication number 70060-03613, covering units with serial number 0200101 and up. The 38-page PDF walks you through assembly onto the tractor, operating controls, snow removal technique, seasonal maintenance, and dismounting at the end of winter.The second half is a full illustrated parts section, with exploded diagrams and Kubota part numbers for the push frame, drivelines, snowblower head, worm gear box, reduction box, and chute rotation system, including the optional electric chute and deflector kits. A torque specification table and lubrication intervals round it out.Whether you are setting the blower up for the first time, chasing a rotation or shear-bolt problem, or ordering a replacement part by its exact number, this manual gives you the information straight from Kubota.
What's Inside This Kubota B2550 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | - | To the Purchaser, Record Snowblower Serial Number and Model |
| Safety Decals | - | - |
| Assembly | - | Tractor Preparation, Pushframe Preparation, Chute and Rotation, Snowblower Preparation, Attaching Snowblower to Tractor, Electric Chute Rotation Kit (Optional) |
| Operation | - | Operating Controls, Adjustments, Preparing for Snow Removal, Snow Removal Methods |
| Maintenance | - | Tire Pressure, Maintenance Service and Storage, End of Season Storage, Lubrication, Gearbox Illustration |
| Dismounting | - | Select a Level Surface, Disconnect Drivelines, Remove Hair Pin From Rotation Tube, Disconnect Electric Wires, Remove Snowblower, Remove Subframe Bars and Handle Support |
| Torque Specification Table | - | Bolt Head Identification Marks As per Grade, Metric Bolt Torque Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Set screw (3/8"NC x 3/8", allen) replacement part | O/L (Obtain Locally) | p. 32 |
| Set screw (5/16"NC x 1/2", allen) replacement part | O/L (Obtain Locally) | p. 32 |
| Oil seal replacement part | 70060-01290 | p. 31 |
| Auger gearbox oil type | AGMA 5EP or SAE 90 extreme pressure oil | p. 19 |
| Worm gear replacement part | 70060-01329 | p. 31 |
| Rotation worm (ccw) replacement part | 70060-01493 | p. 33 |
| Shear bolt (1/4"NC x 1", grade 5, with nylon lock nut) replacement part | 70060-01075 | p. 30 |
| Shear bolt (5/16" NC x 2 1/4", with lockwasher & nut) replacement part | 70060-01338 | p. 30 |
| Bearing with locking collar (1" bore) replacement part | 70060-01425 | p. 32 |
| Front Wheel Tire Pressure | 26-27 psi | p. 7 |
| Rear Wheel Tire Pressure | 7-8 psi | p. 7 |
| Skid Shoe Clearance (Asphalt) | 1/16" to 1/8" | p. 10 |
Kubota B2550 Common Problems This Manual Covers
Rotation drive damaged after a hard stop
Driving the blower hard against its travel limit or an obstacle can peen the worm gear and its mating gear, causing binding or grinding when the chute rotates. The parts diagrams identify the worm and rotation gears you may need to replace.
Manual Section: Worm Gear Box p. 31Set screws back out over time
The set screws in the drive couplers can slowly loosen, letting the attachment shift or lose drive during use. The reduction box breakdown shows the coupler hardware to inspect and retighten during annual service.
Manual Section: Reduction Box p. 32Shear bolts break under load
Hitting packed snow, ice, or debris shears the protective bolts on the auger drive, which is normal protection but leaves the blower unable to throw. The snowblower head section lists the correct shear bolts and bushing by part number.
Manual Section: Snowblower Head p. 29Poor throw from low gearbox oil
Neglected gearbox oil leads to noise, weak throw, and eventual gearbox wear. The maintenance section covers the lubrication schedule and the AGMA 5EP or SAE 90 extreme pressure oil the auger gearbox requires.
Manual Section: Maintenance p. 21Skid shoes set at the wrong height
Skid shoes set too low scrape and gouge the surface, while too high leaves snow behind. The operation section gives the skid shoe clearance for asphalt and gravel and how to adjust it.
Manual Section: Operation p. 17Trouble mounting the blower to the tractor
First-time setup can go wrong when the pushframe, subframe, and driveline are not prepared and aligned in the right order. The assembly section walks through tractor preparation and attaching the snowblower step by step.
Manual Section: Assembly p. 7Frequently Asked Questions
Which snowblower does this manual cover?
It covers the Kubota B2550 front-mount snowblower, publication number 70060-03613, for units with serial number 0200101 and up. It also documents the optional GB2514 electric chute rotation kit and GB2513 electric deflector kit.
Does it include parts diagrams and part numbers?
Yes. The parts section provides exploded diagrams with Kubota part numbers for the push frame, drivelines, snowblower head, worm gear box, reduction box, and chute rotation system, plus a numerical index for cross-referencing. p. 23
Are torque specifications included?
Yes. The torque specification table lists general bolt torques by grade and size, including metric values, so you can tighten fasteners correctly during assembly and repair. p. 38
How do I get the manual after buying?
The PDF is delivered as an instant download after checkout, so you can open it right away and keep your own copy for future reference.
What do I get after purchasing this Kubota B2550 manual?
Instant PDF download. The full 38-page searchable Operator Manual, Parts Catalog lands in your hands right after payment. Open it on a laptop, tablet, or phone out on the shop floor.
Are there any print restrictions on this manual?
Yes. Print as many copies as you want, with no restrictions. Plenty of mechanics print only the section they need and carry it to the shop floor.
Does this Kubota B2550 Operator Manual, Parts Catalog have electrical diagrams?
Included. The manual covers wiring schematics for the optional electric chute rotation and deflector kits.
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