Part of the Kubota Repair Manuals.
This is the factory Kubota LA844 Workshop Manual, a 51-page PDF covering the LA844 front loader (Kubota publication 9Y111-01680). It is written for the mechanic who services, disassembles, and rebuilds the loader rather than just operates it.
Inside you get the loader's hydraulic control valve broken down section by section, the boom and bucket circuits, servicing specifications, troubleshooting charts, and full tightening torque tables. Step-by-step procedures walk through dismounting the loader from the tractor, checking and adjusting, and disassembling and assembling the cylinders and frame.
With this manual you can diagnose a boom or bucket that drifts down, reseal a leaking cylinder to the correct dimensions, set the relief valve pressure, and torque every fastener to spec. It downloads as a printable PDF you can keep on the bench or on your phone while you work.
Complete the set for your LA844
- Parts Catalog: Kubota LA844 Tractor Loader Parts Catalog
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-22 | Loader Identification, Lubricants, Tightening Torques (Stud Bolts, American Standard Screws, Bolts and Nuts with Unc or Unf Threads, Plugs, Hydraulic Fittings) |
| Mechanism | 23-33 | Control Valve Assembly (Hydraulic Circuit, Hydraulic Block, Structure, Operation, Inlet and Outlet Section, Boom Control Section, Bucket Control Section, Power Beyond, Neutral, Down, Floating, Roll-Back, Dump) |
| Servicing | 34-51 | Control Valve, Hydraulic Hose, Control Lever, Bucket, Boom, Hydraulic Cylinder, Piston Rod, Piston Seal |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bucket cylinder head mounting torque | 460 to 480 N·m | p. 37 |
| Boom and bucket cylinder piston mounting nut | 300 to 320 N·m | p. 37 |
| Boom cylinder head mounting torque | 580 to 600 N·m | p. 37 |
| Piston Seal (A) installation clearance (Boom) | 80 μm (0.0031 in.) | p. 45 |
| Control valve mounting bolt torque | 24 to 27 N·m | p. 41 |
| Elbow tightening torque | 48 to 54 N·m | p. 42 |
| Adjustable elbow, Adapter (O-ring port) (UNF) 9/16 thread size torque | 37 to 44 N·m | p. 19 |
| Adjustable elbow, Adapter (O-ring port) (UNF) 3/4 thread size torque | 48 to 54 N·m | p. 19 |
| Transmission case capacity | 44.0 L | p. 16 |
| Hydraulic fluid type | KUBOTA UDT or SUPER UDT fluid | p. 16 |
| Relief valve setting pressure | 17.7 to 18.1 MPa | p. 36 |
| Relief valve setting condition - Engine Speed | Approx. 2700 min¯¹ (rpm) | p. 36 |
