Kubota U-15 Workshop Manual — 97899-60510

About this manual

Kubota published this Workshop Manual for the U-15 excavator models. It brings the documented service and technical-reference material for those named excavators into a single 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

Models

U-15

Document number

97899-60510

Publication year

2000

Language

English

Page count

284

Product highlights

Electrical systems

The manual includes wiring diagrams and electrical troubleshooting.

Hydraulic systems

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

Specifications and settings

The manual includes reference information for wear limits and pressure specifications.

Special tools

A special-tools section is included.

Maintenance

The manual includes a maintenance schedule.

Manual contents

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

• Mechanism Chapter — p. 4
  • I : Structure & Function — p. I-1
  • II : Circuit Diagram — p. II-1
    • [1] Hydraulic circuit diagram — p. II-1
      • (1) Hydraulic circuit diagram — p. II-1
      • (2) Circuit diagram & components — p. II-11
    • [2] Electrical System — p. II-12
      • (1) Five basic principles — p. II-12
      • (2) Electrical circuit diagram — p. II-13
      • (3) Circuit diagram & components layout — p. II-14
      • (4) Starter motor — p. II-15
      • (5) Charging device — p. II-17
  • III : Troubleshooting — p. III-1
    • [1] Troubleshooting — p. III-1
      • (1) Common circuit — p. III-2
      • (2) Swivel circuit — p. III-3
      • (3) Travel circuit — p. III-5
      • (4) Front attachment — p. III-6
      • (5) Track width adjustment — p. III-10
      • (6) Hydraulic oil temperature — p. III-11
  • IV : Testing — p. IV-1
    • (1) Gauges and special tools for pressure testing — p. IV-2
    • (2) Flow meter and special tools for flow testing — p. IV-2
    • (3) Pump flow — p. IV-3
    • (4) Pilot pressure — p. IV-4
    • (5) Main relief valve pressure — p. IV-5
    • (6) Overload relief valve pressure — p. IV-5
    • (7) Swivel brake valve pressure — p. IV-6
    • (8) Swivel force — p. IV-6
    • (9) Swivel motor drain amount — p. IV-7
    • (10) Swivel slippage — p. IV-7
    • (11) Swivel motor block performance — p. IV-7
    • (12) Travel motor block performance — p. IV-8
    • (13) Travel motor drain amount — p. IV-8
    • (14) Operating speed — p. IV-8
    • (15) Cylinder leakage — p. IV-10
    • (16) Lever operation — p. IV-10
    • (17) Operational testing — p. IV-11
    • (18) Applicational testing — p. IV-13
• Service Chapter — p. 61
  • I : General — p. I-1
    • [1] BODY AND ENGINE IDENTIFICATION MARKS — p. I-4
    • [2] SAFETY PRECAUTIONS FOR SERVICING — p. I-5
      • (1) Safety Measures before Starting Work — p. I-5
      • (2) Safety Measures during Work — p. I-6
    • [3] PRECAUTIONS FOR DISASSEMBLY AND REASSEMBLY — p. I-8
      • (1) Preparation for Disassembly — p. I-8
      • (2) Precautions for Disassembly and Reassembly — p. I-9
    • [4] IMPORTANT SAFETY PARTS AND CRITICAL FUNCTIONAL PARTS — p. I-10
      • (1) Essential Adhesives — p. I-10
      • (2) The Following Two points are Included in the Important Safety Process S — p. I-10
      • (3) The Following Five Points are Included in the Critical Functional Process A — p. I-10
    • [5] IMPORTANT INSPECTION ITEMS — p. I-10
      • (1) Operate the Machine and Check for Unusual Noise and Vibrations — p. I-10
      • (2) Make sure the Nameplate and Grommets are in their Specified Positions — p. I-10
      • (3) With the Machine Front in a Specified Posture, Check the Amount of Hydraulic Oil — p. I-10
    • [6] SERVICING FUNDAMENTALS — p. I-13
      • (1) Items for Servicing — p. I-13
      • (2) O-Ring, Oil Seal, Circlip, Roll Pin — p. I-17
      • (3) Piping — p. I-21
    • [7] PERIODIC INSPECTION AND SERVICING TABLE — p. I-27
      • (1) Periodic Inspection Standards (For User Guidance) — p. I-27
      • (2) Hydraulic Oil Check for Machines with Hydraulic Breakers — p. I-31
    • [8] GENERAL SPECIFICATIONS — p. I-33
      • (1) Quantity Water and Oil — p. I-33
  • II : Specifications & servicing data — p. II-1
    • [1] Machine Specifications, Operation Space and Major Dimensions — p. II-2
    • [2] Working Performance, Lifting Capacity — p. II-6
    • [3] Lever Stroke and Operating Force — p. II-8
    • [4] Dimensions of Parts — p. II-9
    • [5] Machine Weight, Parts Weight — p. II-15
    • [6] Quantity Water and Oil — p. II-17
    • [7] Noise Level — p. II-18
    • [8] Relief Valve — p. II-19
    • [9] Gear Pump — p. II-21
    • [10] Cylinder — p. II-23
    • [11] Swivel Performance — p. II-27
    • [12] Traveling Performance — p. II-28
    • [13] Engine — p. II-29
    • [14] Periodic Inspection — p. II-34
    • [15] Recommended Oil and Lubrication — p. II-36
    • [16] Paint Color — p. II-37
    • [17] Hydraulic Hose Table — p. II-38
    • [18] Tightening Torque & Adhesive — p. II-40
    • [19] Quality Specifications — p. II-44
  • III : Removing & reassembling — p. III-1
    • [1] Front attachment — p. III-2
      • (1) Bucket — p. III-2
      • (2) Front hose route 1 — p. III-3
      • (3) Front hose route 2 — p. III-4
    • [2] Swivel frame — p. III-5
      • (1) Pump — p. III-5
      • (2) Control valve — p. III-17
      • (3) Pilot valve — p. III-18
      • (4) Unload valve — p. III-23
      • (5) Change valve — p. III-24
      • (6) Swivel motor — p. III-25
      • (7) Cylinder — p. III-32
      • (8) Oil tank, weight — p. III-35
      • (9) Hose route — p. III-36
      • (10) Control devise — p. III-41
      • (11) Engine accessories — p. III-47
      • (12) Wireharness route — p. III-52
      • (13) Canopy — p. III-54
    • [3] Undercarriage — p. III-56
      • (1) Swivel bearing — p. III-56
      • (2) Rotary joint — p. III-57
      • (3) Idler, grease cylinder — p. III-59
      • (4) Track frame — p. III-60
      • (5) Track roller — p. III-61
      • (6) Travel motor — p. III-64
  • IV : Engine — p. IV-1
    • F : Feature — p. IV-2
      • 1 Engine body — p. IV-3
      • 2 Lubricating system — p. IV-6
      • 3 Cooling system — p. IV-9
      • 4 Fuel system — p. IV-12
      • 5 Electrical system — p. IV-18
    • G : General — p. IV-25
      • 1 Engine body — p. IV-46
      • 2 Lubricating system — p. IV-66
      • 3 Cooling system — p. IV-67
      • 4 Fuel system — p. IV-69
      • 5 Electrical system — p. IV-73

Capabilities

The source outline indexes mechanism explanations, troubleshooting, checking and adjustment, 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.

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 Excavator, document code 97899-60510, PDF edition.