Part of the Kubota Parts Manuals.
This is the Kubota LA302 loader parts catalog, a 42 page illustrated PDF that lays out the loader in its exact factory assemblies. It covers the main frame, brace, boom, the control valve in both 3 position and 4 position types, the control lever, the boom and bucket cylinders, and the full hydraulic hose, tube, and block circuits.
Each section pairs an exploded diagram with a numbered parts list carrying Kubota part numbers, quantities, serial number ranges, and component weights. You can match a reference number on the drawing to the right part, and the serial columns tell you which version fits your loader.
Use it to identify control valve and detent parts, hydraulic hoses and couplers, cylinder seal kits, and frame hardware for repairs like a loader that will not lower, a leaking coupler, or a boom rebuild. Operator manual accessories are listed at the back.
What's Inside This Kubota LA302 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Main Frame | 4-6 | Main Frame Components Diagram, Old Part Diagram, Main Frame Parts List |
| Brace | 7-8 | Assembly Parts, Fasteners for Brace, Comp Guard Front Parts |
| Boom | 9-10 | Assembly Parts, Fasteners and Pins, Labels and Bucket Components |
| Control Valve | 11-16 | Control Valve Diagram (3 Position Valve Type), Control Valve Diagram (4 Position Valve Type) |
| Control Valve [Component Parts] | 17-22 | Component Parts List (3 Position Valve Type), Component Parts List (4 Position Valve Type) |
| Control Lever | 23-26 | Control Lever Diagram (S.No. <=19999), Control Lever Parts List (S.No. <=19999), Control Lever Diagram (S.No. >=50001), Control Lever Parts List (S.No. >=50001) |
| Cylinder/Hydraulic Hose | 27-28 | Cylinder Components, Hydraulic Hoses, Band Code |
| Hydraulic Hose(Hyd.Outlet Block) | 29-30 | Hydraulic Hoses, Coupler and Plugs, Sleeve and Band Code |
| Hydraulic Tube | 31-32 | Hydraulic Tubes, Clamp and Fasteners |
| Cylinder (Boom)[Component Parts] | 33-34 | Boom Cylinder Tube Components, Rod, Head, Piston, And Nut Components, Seal, Fittings, And Plugs |
| Cylinder (Bucket)[Component Parts] | 35-36 | Bucket Cylinder Tube Components, Rod, Head, Piston, And Nut Components, Seal, Fittings, And Plugs |
| Hydraulic Block | 37-41 | Hydraulic Block Diagram (S.No. <=19999), Hydraulic Block Parts List (S.No. <=19999), Hydraulic Block Diagram (S.No. >=50001), Hydraulic Block Parts List (S.No. >=50001), Accessories and Service Parts Diagram |
| Accessories and Service Parts | 42 | Operator's Manual English, Operator's Manual French |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Frame (Part No. 7J043-90110) Weight | 81 kgf | p. 6 |
| Main Frame (Part No. 7J043-90182) Weight | 92 kgf | p. 6 |
| Hex.Bolt (Part No. 75599-04625) Size | 9/16-18UNF*1-1/4 | p. 6 |
| Hex.Nut (Part No. 75599-31066) Size | 9/16-18UNF | p. 6 |
| Brace (Part No. 75536-57400) Weight | 21 kgf | p. 8 |
| Hex.Bolt (Part No. 75599-04630) Size | 9/16-18UNF*1-1/2 | p. 8 |
| Hex.Bolt (Part No. 75599-04530) Size | 1/2-20UNF*1-1/2 | p. 8 |
| Boom (Part No. 7J043-58010) Weight | 96 kgf | p. 10 |
| Fitting Grease (Part No. 75599-81520) Thread | 1/4-28T.T. | p. 10 |
| Stay Valve (Part No. 75536-66110) Weight | 2.4 kgf | p. 12 |
| Cylinder 1 (Part No. 75536-63010) Weight | 6.3 kgf | p. 28 |
Kubota LA302 Common Problems This Manual Covers
Boom will not lower without float
A common LA302 complaint is that the boom stays up and only drops when the float function is engaged, pointing to a sticking or rust jammed control valve spool or detent. The control valve is diagrammed in full.
Manual Section: Control Valve p. 11Loader lowers only intermittently
The front end loader responds slowly or not at all when a hydraulic hose leaks or an aging line restricts return flow. The cylinder hoses are itemized with their part numbers and band codes.
Manual Section: Cylinder/Hydraulic Hose p. 27Sticky or rust jammed detent
A rusted detent or sticky spool inside the valve causes poor lowering behavior and often needs cleaning or resealing. The detent float kit and related internals are broken out for replacement.
Manual Section: Control Valve [Component Parts] p. 17Leaks at quick disconnect couplers
Hydraulic oil weeping at the quick disconnects is a frequent LA302 loader fault. The outlet block section lists the couplers, plugs, and sleeves so you can replace the exact fitting that is leaking.
Manual Section: Hydraulic Hose(Hyd.Outlet Block) p. 29Boom cylinder drifts or leaks
Weak lift or a boom that settles under load usually means worn seals inside the boom cylinder. The cylinder breaks down into tube, rod, head, piston, and seal parts for a clean rebuild.
Manual Section: Cylinder (Boom)[Component Parts] p. 33Vague or worn control lever
Loose or imprecise joystick action develops as the control lever and its linkage wear. The lever assembly is diagrammed with serial specific versions and individual replaceable parts.
Manual Section: Control Lever p. 23Frequently Asked Questions
Which loader does this catalog cover?
It covers the Kubota LA302 loader. Parts are grouped by assembly with exploded diagrams and Kubota part numbers, and many lists include serial number columns so you can pick the version that fits your machine.
Does it cover both control valve types?
Yes. The Control Valve section includes separate diagrams and parts lists for the 3 position and 4 position valve types, so you can identify the correct valve and components for your loader. p. 11
Can I find the boom cylinder seal kit?
Yes. The Cylinder (Boom) component parts section breaks the boom cylinder into its tube, rod, head, piston, and seal parts with Kubota part numbers, so you can order the right seal kit for a rebuild. p. 33
Does it list operator manual and accessory parts?
Yes. The Accessories and Service Parts section at the back lists the English and French operator manuals along with other service parts, with their Kubota part numbers. p. 42
How will I receive this Kubota LA302 Loader Parts Catalog?
Immediate download of the complete 42-page searchable Parts Catalog (1 MB). Access it on any device, from a laptop at your desk to a phone in the field.
Can I print specific sections of this Kubota LA302 Loader Parts Catalog?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Reviews
There are no reviews yet.