Kubota D1703-M-DI-E4B, and D1503-M-E4BG Workshop Manual — 9Y111-09672

About this manual

Kubota published this Workshop Manual for the D1703-M-DI-E4B and D1503-M-E4BG engine models. It brings the documented service and technical-reference material for those named engines into a single publication.

Its documented technical value includes torque settings, wear limits, dimensions, and emission data for service checks and specification lookup. Use the values and conditions stated in the PDF for the applicable model and procedure.

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

D1703-M-DI-E4B and D1503-M-E4BG

Document number

9Y111-09672

Language

English

Page count

148

Product highlights

Electrical systems

The manual includes wiring diagrams.

Specifications and settings

The manual includes reference information for torque specifications, wear limits, dimensions, and emission 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.

• TO THE READER — p. 1
• I INFORMATION — p. 3
  • INFORMATION — p. 4
    • 1. SAFETY FIRST — p. 5
    • 2. SPECIFICATION — p. 8
    • 3. PERFORMANCE CURVE — p. 10
    • 4. DIMENSIONS — p. 11
    • 5. WIRING DIAGRAM — p. 13
• G GENERAL — p. 14
  • GENERAL — p. 15
    • 1. ENGINE IDENTIFICATION — p. 16
      • [1] MODEL NAME AND ENGINE SERIAL NUMBER — p. 16
      • [2] E4B ENGINE — p. 18
      • [3] CYLINDER NUMBER — p. 18
    • 2. GENERAL PRECAUTIONS — p. 19
    • 3. MAINTENANCE CHECK LIST — p. 20
    • 4. CHECK AND MAINTENANCE — p. 23
      • [1] DAILY CHECK POINTS — p. 23
      • [2] CHECK POINTS FOR THE INITIAL 50 HOURS — p. 25
      • [3] CHECK POINTS FOR EVERY 50 HOURS — p. 26
      • [4] CHECK POINTS FOR EVERY 100 HOURS — p. 27
      • [5] CHECK POINTS FOR EVERY 150 HOURS — p. 29
      • [6] CHECK POINTS FOR EVERY 200 HOURS — p. 30
      • [7] CHECK POINTS FOR EVERY 400 HOURS — p. 33
      • [8] CHECK POINTS FOR EVERY 500 HOURS — p. 35
      • [9] CHECK POINTS FOR EVERY 1 OR 2 MONTHS — p. 37
      • [10] CHECK POINTS FOR EVERY YEAR — p. 38
      • [11] CHECK POINTS FOR EVERY 800 HOURS — p. 39
      • [12] CHECK POINTS FOR EVERY 1500 HOURS — p. 40
      • [13] CHECK POINTS FOR EVERY 3000 HOURS — p. 42
      • [14] CHECK POINTS FOR EVERY 2 YEARS — p. 44
    • 5. SPECIAL TOOLS — p. 48
• 1 ENGINE — p. 55
  • MECHANISM — p. 56
    • 1. ENGINE BODY — p. 57
      • [1] PISTON — p. 57
      • [2] HALF-FLOATING HEAD COVER — p. 57
    • 2. COOLING SYSTEM — p. 58
      • [1] BOTTOM BYPASS SYSTEM — p. 58
    • 3. FUEL SYSTEM — p. 59
      • [1] GOVERNOR — p. 59
  • SERVICING — p. 60
    • 1. TROUBLESHOOTING — p. 61
      • [1] ENGINE BODY — p. 61
      • [2] ELECTRONIC GOVERNOR — p. 66
    • 2. SERVICING SPECIFICATIONS — p. 68
    • 3. TIGHTENING TORQUES — p. 76
      • [1] TIGHTENING TORQUES OF SCREWS, BOLTS AND NUTS FOR GENERAL USE — p. 76
      • [2] TIGHTENING TORQUES OF THE SCREWS, BOLTS AND NUTS FOR SPECIAL USE — p. 77
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 78
      • [1] CHECKING AND ADJUSTING — p. 78
        • (1) Engine Body — p. 78
        • (2) Lubricating System — p. 81
        • (3) Cooling System — p. 81
        • (4) Fuel System — p. 84
        • (5) Electrical System — p. 91
        • (6) Electronic Governor — p. 95
      • [2] DISASSEMBLING AND ASSEMBLING — p. 100
        • (1) Draining Engine Oil and Coolant — p. 100
        • (2) External Components — p. 101
        • (3) Cylinder Head and Valves — p. 101
        • (4) Gear Case and Timing Gears — p. 107
        • (5) Piston and Connecting Rod — p. 112
        • (6) Flywheel and Crankshaft — p. 117
        • (7) Starter — p. 120
        • (8) Alternator — p. 121
      • [3] SERVICING — p. 122
        • (1) Cylinder Head and Valves — p. 122
        • (2) Timing Gears — p. 129
        • (3) Piston and Connecting Rod — p. 133
        • (4) Crankshaft — p. 136
        • (5) Cylinder — p. 141
        • (6) Oil Pump — p. 142
        • (7) Starter — p. 142
        • (8) Alternator — p. 144

Capabilities

The source outline separates mechanism explanations from servicing instructions for Engine. Use these indexed headings to locate the applicable 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 torque settings, wear limits, dimensions, and emission data 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: torque settings and wear limits.
• Machine specifications: dimensions.
• Electrical and emissions: emission data.

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 Engine, document code 9Y111-09672, PDF edition.