Kubota Z482-E3B, Z602-E3B, D722-E3B, D782-E3B, and D902-E3B Workshop Manual — 9Y111-00134

About this manual

Kubota published this Workshop Manual for the Z482-E3B, Z602-E3B, D722-E3B, D782-E3B, and D902-E3B 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

Z482-E3B, Z602-E3B, D722-E3B, D782-E3B, and D902-E3B

Document number

9Y111-00134

Language

English

Page count

144

Product highlights

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.

Record of Revisions

The workshop manual was revised in March 2014. The revision applies to manual codes ending in 4 and includes corrections and additional technical information throughout the General and Servicing sections.

Main Revised Points

• Model name and old engine serial number — General section, page G-1.
• Model name and new engine serial number — General section, pages G-2 to G-3.
• Battery specific gravity — pages G-23 and S-22.
• Additional information for the specifications of Z602 / D902-3200 rpm.
• Specifications — page 5 and page 7.
• Performance curves — pages 9 and 13.
• Injection timing — pages G-28 and S-17.
• Servicing specifications — page S-9.
• Revised tightening torque for the oil pump gear nut.
• Tightening torques for special-use screws, bolts and nuts — page S-12.
• Disassembling and assembling — page S-41.

General Section Contents

1. Engine Identification
   • Model Name and Old Engine Serial Number — G-1
   • Model Name and New Engine Serial Number — G-2
   • E3B Engine — G-4
   • Cylinder Number — G-4
2. General Precautions — G-5
3. Maintenance Check List — G-6
4. Check and Maintenance
   • Daily Check Points — G-9
   • Check Points of Initial 50 Hours — G-11
   • Check Point of Every 50 Hours — G-13
   • Check Point of Every 75 Hours — G-14
   • Check Points of Every 100 Hours — G-15
   • Check Point of Every 150 Hours — G-18
   • Check Points of Every 200 Hours — G-18
   • Check Points of Every 400 Hours — G-19
   • Check Points of Every 500 Hours — G-20
   • Check Points of Every 1 or 2 Months — G-22
   • Check Point of Every Year — G-24
   • Check Point of Every 800 Hours — G-25
   • Check Points of Every 1500 Hours — G-26
   • Check Points of Every 3000 Hours — G-28
   • Check Points of Every 2 Years — G-31
5. Special Tools — G-35

Mechanism Section Contents

1. Engine Body
   • Half-Floating Head Cover — M-1
   • Closed Breather — M-1
   • Piston (Z602-E3B, D782-E3B, D902-E3B) — M-2
   • Oil Pan (Z602-E3B, D902-E3B) — M-2
2. Cooling System
   • Cooling Fin (Z602-E3B, D902-E3B) — M-3

Servicing Section Contents

1. Troubleshooting — S-1
2. Servicing Specifications — S-4
3. Tightening Torques — S-11
   • Tightening Torques for General Use Screws, Bolts and Nuts — S-11
   • Tightening Torques for Special Use Screws, Bolts and Nuts — S-12
4. Checking, Disassembling and Servicing — S-13

   Checking and Adjusting

   • Engine Body — S-13
   • Lubricating System — S-15
   • Cooling System — S-15
   • Fuel System — S-17
   • Electrical System — S-21

   Disassembling and Assembling

   • Draining Engine Oil and Coolant — S-28
   • External Components — S-29
   • Cylinder Head, Valves and Oil Pan — S-29
   • Gear Case and Timing Gears — S-35
   • Piston and Connecting Rod — S-42
   • Flywheel and Crankshaft — S-45
   • Starter — S-49
   • Dynamo — S-51
   • Alternator — S-52

   Servicing

   • Cylinder Head and Valves — S-53
   • Timing Gears — S-59
   • Piston and Connecting Rod — S-61
   • Crankshaft — S-64
   • Cylinder — S-70
   • Oil Pump — S-71
   • Starter — S-72
   • Alternator — S-75

Capabilities

The source outline indexes mechanism explanations and servicing instructions. 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 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 9Y111-00134, PDF edition.