Part of the Kubota Repair Manuals.
This is the factory workshop manual for the Kubota LA513, LA723, and LA853 front loaders, publication number 97897-17130. In 41 focused pages it gives the service technician the hydraulic diagrams, specifications, and repair procedures for all three loader models.Coverage includes the hydraulic circuit and block, the control valve assembly in both 3 position and 4 position bucket control types, troubleshooting, servicing specifications, and tightening torques for general fasteners and hydraulic fittings. It also details dismounting the loader from the tractor and disassembling and servicing the control valve, bucket, boom, and hydraulic cylinders.Use it to trace a hydraulic fault, rebuild the control valve, replace cylinder seals, set the correct fitting torques, and safely remove or refit the loader, with the specification differences between the LA513, LA723, and LA853 called out where they matter.
What's Inside This Kubota LA513, LA723, LA853 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety First | 3-5 | - |
| Safety Decals | 6 | - |
| Loader Terminology | 7 | Loader Control Lever, Side Frame, Main Frame, Boom, Bucket, Cylinders |
| Specifications | 8-11 | [1]Loader Specifications, [2]Bucket Specifications, [3]Dimensional and Operational Specifications |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| General Use Screws, Bolts and Nuts (M6) | 9.8 to 11.2 N·m | p. 22 |
| Hose fitting and flare nut tightening torque (9/16-18, Brass) | 16.3 to 17.6 N·m | p. 23 |
| Adjustable elbow and adaptor tightening torque (9/16) | 37 to 44 N·m | p. 23 |
| LA513 | ||
| Boom Cylinder Bore | 45.0 mm | p. 8 |
| Bucket Struck Capacity | 0.23 m³ | p. 9 |
| Raising Time | 2.7 sec. | p. 11 |
| LA723 | ||
| Boom Cylinder Bore | 50.0 mm | p. 8 |
| LA853 | ||
| Boom Cylinder Bore | 60.0 mm | p. 8 |
| Rated Flow | 37.0 L/min. | p. 8 |
| Maximum Lift Height | 2885 mm | p. 10 |
| Breakout Force at Pivot Pin | 17840 N | p. 11 |
| LA513, LA723 | ||
| Rated Flow | 31.5 L/min. | p. 8 |
Kubota LA513, LA723, LA853 Common Problems This Manual Covers
Loader raises slowly or jerks
Low fluid, trapped air, or a restricted circuit makes the boom lift slowly or in jerks. The Troubleshooting section lists the checks for weak or erratic loader movement.
Manual Section: Troubleshooting p. 20Hydraulic leaks at hoses and fittings
Worn or loose hydraulic fittings weep oil and lose pressure. The Hydraulic Fittings section gives the correct tightening torques for the hose fittings and adaptors.
Manual Section: Hydraulic Fittings p. 23Hard or unsafe loader removal
Residual pressure in the lines makes the quick couplers difficult to disconnect. The Dismounting Front Loader from Tractor section explains releasing pressure before removal.
Manual Section: Dismounting Front Loader from Tractor p. 25Sticking or leaking control valve
A control valve spool that sticks or bypasses causes poor or drifting loader response. The Control Valve section covers checking, disassembling, and servicing the valve.
Manual Section: Control Valve p. 27Cylinder drift or bent rod
Leaking cylinder seals let the boom or bucket settle, and a bent rod binds the cylinder. The Bucket, Boom and Hydraulic Cylinders section covers servicing them.
Manual Section: Bucket, Boom and Hydraulic Cylinders p. 33Stiff or noisy pivot joints
Missed greasing leaves the pivot points worn, stiff, and noisy. The General section lists the lubricants and the maintenance check list for the loader.
Manual Section: General p. 18Frequently Asked Questions
Which loaders does this manual cover?
It covers the Kubota LA513, LA723, and LA853 front loaders under publication number 97897-17130. The 41 page workshop manual serves all three models.
Does it include torque specs?
Yes. The Tightening Torques section gives general fastener values such as 9.8 to 11.2 N·m for M6 and 196 to 225 N·m for M16, plus hydraulic fitting torques. p. 22
How do the three loader models differ?
The Specifications section lists the differences, including boom cylinder bores of 45.0 mm, 50.0 mm, and 60.0 mm and rated flows of 31.5 and 37.0 L/min across the LA513, LA723, and LA853. p. 8
Does it explain removing the loader from the tractor?
Yes. The Dismounting Front Loader from Tractor section walks through relieving hydraulic pressure and safely separating the loader. p. 25
What format is this manual in?
Download the full 41-page searchable Workshop Manual right after purchase. It opens on any device, from the laptop at your desk to the phone in the field.
Can I print this manual?
Yes. Print as many copies as you like; there are no restrictions. Plenty of mechanics print just the section they need and carry it out to the shop floor.
Does this Kubota LA513 manual include hydraulic schematics?
Yes. Hydraulic schematics map every circuit and control valve, along with the component specs for the LA513, LA723, and LA853.
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