Looking for a part number on your Kubota BF300-A Compact Tractor Loader? This 23-page Kubota BF300-A parts catalog PDF is the factory-issued reference: exploded views and OEM reference numbers covering the complete frame, boom, and hydraulic system from end to end. You get hydraulic parts diagrams for the full pipe and control valve circuit, plus conversion kit diagrams for two configurations: BF300-A to BF300 upgrade and B8200E fitment. Factory-listed weights keep you honest when ordering: control valve assembly at 6.5 kgf, hydraulic hoses REF.190 and REF.200 at 0.28 and 0.25 kgf. No more hunting a part number across three browser tabs and a dealer's fax. Bookmarked by assembly; search any reference number, land on the right diagram, order the right part.
What's Inside This Kubota BF300-A Parts Manual
| System | Pages |
|---|---|
| Main Frame/Side Frame | 4-5 |
| Boom | 6-7 |
| Hydraulic Pipe/Control Valve | 8-9 |
| Control Valve [Component Parts] | 10-11 |
| Boom Cylinder [Component Parts] | 12-13 |
| Bucket Cylinder [Component Parts] | 14-15 |
| Hydraulic Pipe | 16-17 |
| Conversion Kit From Bf300-A to Bf300 (Option) | 18-19 |
| Conversion Kit for B8200E (Option) | 20-22 |
| Accessories and Service Parts | 23-23 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Weight of KIT SEAL, CYLINDER (Boom Cylinder) | 0.04 kgf | p. 13 |
| Weight of KIT SEAL, CYLINDER (Bucket Cylinder) | 0.025 kgf | p. 15 |
| Weight of HOSE, HYDRAULIC (REF.No 190) | 0.28 kgf | p. 9 |
| Weight of HOSE, HYDRAULIC (REF.No 200) | 0.25 kgf | p. 9 |
| Weight of ASSY VALVE, CONTROL | 6.5 kgf | p. 9 |
| Weight of KIT SEAL, VALVE | 0.01 kgf | p. 11 |
| Weight of BOLT (REF.No 030) | 0.037 kgf | p. 5 |
| Weight of CONNECTOR, HOUSING (REF.No 090) | 0.71 kgf | p. 5 |
| Weight of FRAME, SIDE LH (REF.No 140) | 14.2 kgf | p. 5 |
| Weight of CONNECTOR, MAST (REF.No 220) | 4.5 kgf | p. 5 |
| Weight of NUT, LOCK (REF.No 250) | 0.12 kgf | p. 5 |
| Weight of SUPPORT, BRACE LH (REF.No 010) | 1.6 kgf | p. 7 |
Kubota BF300-A Common Problems This Manual Covers
Kubota BF300-A boom cylinder leaking hydraulic oil, need correct seal kit part number p. 12
Open the Boom Cylinder exploded diagram on page 12. The KIT SEAL, CYLINDER for the boom cylinder is a separate line item on page 13, listed at 0.04 kgf. Confirm your serial number range in the parts list header before ordering. Do not confuse this with the bucket cylinder seal kit, which carries a different part number.
Manual Section: Boom Cylinder [Component Parts]Bucket cylinder dripping oil at rod end, need the right seal kit part number p. 14
Turn to the Bucket Cylinder component diagram on page 14. The KIT SEAL, CYLINDER for the bucket cylinder is listed on page 15 at 0.025 kgf. This is a lighter kit than the boom cylinder version (0.04 kgf, page 13) and is a different part number. Verify the reference number matches your serial range before ordering.
Manual Section: Bucket Cylinder [Component Parts]Control valve leaking internally, trying to identify the correct valve seal kit listing p. 10
Check the Control Valve component diagram on page 10. The KIT SEAL, VALVE is its own line item on page 11, listed at 0.01 kgf. Confirm you have the correct valve assembly first: the ASSY VALVE, CONTROL (6.5 kgf) is shown on page 9. Match the assembly reference number before ordering the seal kit.
Manual Section: Control Valve [Component Parts]Hydraulic hoses on the loader showing wear or cracking, need replacement part numbers p. 8
Pull up the hydraulic system diagram on page 8. Both loader hoses are itemized on page 9: REF.No 190 at 0.28 kgf and REF.No 200 at 0.25 kgf. Match each hose by reference number and routing position in the diagram before ordering. The two hoses are different weights and are not interchangeable.
Manual Section: Hydraulic Pipe/Control ValveFrequently Asked Questions
What are the replacement specifications for hydraulic cylinder seals?
For the Boom Cylinder, the replacement seal kit is Part No. 70726-68010, described as 'KIT SEAL, CYLINDER', with a quantity of 2 and a weight of 0.04 kgf (0.088 lb). For the Bucket Cylinder, the replacement seal kit is Part No. 70726-68020, also described as 'KIT SEAL, CYLINDER', with a quantity of 2 and a weight of 0.025 kgf (0.055 lb).
What do I get after purchasing this Kubota BF300-A manual?
This is a 23-page searchable PDF ready for immediate download. Works on any device — pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print specific sections of this Kubota BF300-A Parts Catalog?
Yes. The PDF has no DRM restrictions — print any page or section you need for your shop. Works with any standard printer.
Does this Kubota BF300-A manual include hydraulic schematics?
This is a parts catalog, so it shows exploded parts diagrams rather than circuit schematics. It includes detailed exploded views of the hydraulic components — pump, control valve, cylinder, and oil lines — with OEM part numbers, not wiring-style circuit diagrams.
Document Quality
This document is a scanned PDF with an optical character recognition (OCR) layer, allowing you to search and copy the full text. The text quality is crisp and easy to read throughout the document. Diagrams and illustrations are raster images, appearing as clear scans of original drawings, with labels generally readable. Pages are clean with no significant scan artifacts, stains, marks, or skewed content. There are no blank or filler pages, though one page explicitly states "IMAGE NOT AVAILABLE" for its content.
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