Kubota BX25DLB-AU / LA240A AU-SG / BT602 Workshop Manual

About this manual

Kubota published this Workshop Manual for the listed models: BX25DLB-AU, LA240A AU-SG, and BT602. It covers tractor, front loader, and backhoe equipment in one publication.

The manual is especially useful for work that crosses electrical and hydraulic systems: it includes electrical troubleshooting, alongside hydraulic diagrams, pressure-test evidence, and valve-adjustment information.

Use the Manual Contents below to check that the exact repair, inspection, or maintenance procedure you need is included in this publication.

Manual details

Manufacturer

Kubota

Manual type

Workshop Manual

Equipment type

Tractor, Front Loader, Backhoe

Models

BX25DLB-AU, LA240A AU-SG, and BT602

Document number

9Y111-11322

KiSC issue / revision

August 2019 (A)

Language

English

Page count

411

Product highlights

Electrical systems

The manual includes wiring diagrams and electrical troubleshooting.

Hydraulic systems

The manual includes hydraulic pressure-test material and hydraulic valve-adjustment material.

Specifications and settings

The manual includes reference information for wear limits.

Diagram locator

Physical PDF page numbers for selected source diagrams:

• Hydraulic Circuit — PDF p. 232
• Hydraulic Circuit — PDF p. 248

Applicability and key coverage

The cover identifies BX25DLB-AU and LA240A AU-SG. AU in these model codes is an Australian-market designation. This is an editorial clarification; the cover does not expand the suffix. Check the complete model code before using the procedures or specifications.

The reader introduction names four parts: Information, General, Mechanism, and Servicing.

Selected verified contents headings include Engine, Transaxle, Front Axle, Steering, Hydraulic System, Electrical System, and Front Loader. See Manual contents for page references.

Manual contents

Use these source headings to locate the task or system you need in the PDF.

• General — p. 29
  • Identification — p. G-1
  • General Precautions — p. G-2
  • Handling Precautions For Electrical Parts And Wiring — p. G-3
  • Tightening Torques — p. G-11
  • Maintenance Check List — p. G-15
  • Check And Maintenance — p. G-17
• Engine — p. 89
  • Lubricating System — p. 1-M1
  • Cooling System — p. 1-M2
  • Fuel System — p. 1-M3
  • Troubleshooting — p. 1-S1
  • Servicing Specifications — p. 1-S8
  • Tightening Torques — p. 1-S13
  • Checking, Disassembling And Servicing — p. 1-S14
• Transaxle — p. 145
  • Traveling System — p. 2-M2
  • РTО System — p. 2-M15
  • Others — p. 2-M19
  • Troubleshooting — p. 2-S1
  • Servicing Specifications — p. 2-S6
  • Tightening Torques — p. 2-S8
  • Checking, Disassembling And Servicing — p. 2-S9
• Front Axle — p. 213
  • Structure — p. 3-M1
  • Front Wheel Alignment — p. 3-M2
  • Troubleshooting — p. 3-S1
  • Servicing Specifications — p. 3-S2
  • Tightening Torques — p. 3-S3
  • Checking, Disassembling And Servicing — p. 3-S4
• Steering — p. 232
  • Hydraulic Circuit — p. 4-M1
  • Steering Controller — p. 4-M2
  • Steering Cylinder — p. 4-M3
  • Troubleshooting — p. 4-S1
  • Servicing Specifications — p. 4-S3
  • Tightening Torques — p. 4-S4
• Hydraulic System — p. 248
  • Hydraulic Circuit — p. 5-M1
  • Hydraulic Pump — p. 5-M2
  • Flow Priority Valve — p. 5-M6
  • Relief Valve — p. 5-M7
  • Hydraulic Cylinder — p. 5-M9
  • Hydraulic Block Type Outlet — p. 5-M10
  • Front Loader Valve — p. 5-M12
  • Troubleshooting — p. 5-S1
  • Servicing Specifications — p. 5-S2
  • Tightening Torques — p. 5-S3
  • Checking, Disassembling And Servicing — p. 5-S4
• Electrical System — p. 290
  • Wiring Diagram — p. 6-M1
  • Starting System — p. 6-M2
  • Charging System — p. 6-M6
  • Lighting System — p. 6-M8
  • Gauges — p. 6-M9
  • Troubleshooting — p. 6-S1
  • Servicing Specifications — p. 6-S7
  • Checking, Disassembling And Servicing — p. 6-S10
• Front Loader — p. 342
  • Hydraulic Circuit Schematic — p. 7-M1
  • Control Valve Assembly — p. 7-M2
  • Boom Cylinder And Bucket Cylinder — p. 7-M3
  • Relief Valve — p. 7-M4
  • Spill Guard System — p. 7-M5
  • Troubleshooting — p. 7-S1
  • Servicing Specifications — p. 7-S3
  • Tightening Torques — p. 7-S4
  • Disassembling And Servicing — p. 7-S5

Capabilities

The source table of contents indexes checking and adjustment, maintenance tasks, troubleshooting, servicing instructions, and disassembly and assembly. Use these source-backed headings to locate the applicable task or system in the source PDF, then confirm model-specific notes, specifications, illustrations, and operating conditions at the relevant page before carrying out service work.

Keep the source's safety sequence, prerequisite steps, labels, units, configuration notes, and footnotes with the selected task; do not apply an isolated value outside the conditions stated in the manual.

Technical reference

Reference tables include wear limits for service checks, adjustment work, and specification lookup. Use the values and conditions in the PDF for the applicable model and procedure.

• Service limits and settings: wear limits.

Revision history

Source-recorded revision entries (physical PDF page 3):

• March 2016: Revise Maintenance Intervals for BX25DLB.
• August 2019: Changed Checking Hydraulic Pump Oil Flow; Correct errors.

Delivery

This manual is supplied as a digital PDF file and is available for instant download after purchase. No physical media is shipped.

References

Kubota Workshop Manual for Tractor, Front Loader, Backhoe, document code 9Y111-11322, PDF edition.