WORKSHOP MANUAL - GASOLINE, LPG, NATURAL GAS ENGINE - WG972-E2, DF972-E2, DG972-E2

Nov 4, 2026

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Workshop Manual for servicing personnel covering the mechanism, servicing, and maintenance of gasoline, LPG, and natural gas engines for models WG972-E2, DF972-E2, and DG972-E2. The manual is organized into four parts: Information, General, Mechanism, and Servicing. It includes safety-first instructions, specifications, exhaust emission regulation items, inlet and exhaust system details, performance curves, dimensions, and wiring diagrams. It also provides troubleshooting, maintenance check lists, special tools, and servicing procedures with tightening torques and inspection/disassembly guidance.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages153

Reading Time6 h 26 min

AccessFree to download

TO THE READER

Q Information

Safety First

Specification

Performance Curve

Important Items of Exhaust Emission Regulation

Dimension

Wiring Diagram

Q General

Engine Identification

General Precautions

Maintenance Check List

Check and Maintenance

Special Tools

Q Mechanism

Q Servicing

Troubleshooting

Servicing Specifications

Tightening Torques

Checking, Disassembling and Servicing

CONTENTS

1. SAFETY FIRST

2. SPECIFICATIONS

3. IMPORTANT ITEMS OF EXHAUST EMISSION REGULATION

4. PERFORMANCE CURVES

5. DIMENSIONS

6. WIRING DIAGRAM

WORKSHOP MANUAL GASOLINE,LPG, NATURAL GAS ENGINE WG972-E2,DF972-E2, DG972-E2 KiSC issued 06, 2009 A TO THE READER This Workshop Manual tells the servicing personnel about the mechanism, servicing and maintenance of the WG972-E2, DF972-E2 and DG972-E2 . It contains 4 parts: "Information" ,"General", "Mechanism" and "Servicing". Q Information This section contains information below. • Safety First • Specification • Performance Curve • Important Items of Exhaust Emission Regulation • Dimension • Wiring Diagram Q General This section contains information below. • Engine Identification • General Precautions • Maintenance Check List • Check and Maintenance • Special Tools Q Mechanism This section contains information on the structure and the function of the unit. Before you continue with the subsequent sections, make sure that you read this section. Refer to the latest version of Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200) for the diesel engine / tractor mechanism that this workshop manual does not include. Q Servicing This section contains information below. • Troubleshooting • Servicing Specifications • Tightening Torques • Checking, Disassembling and Servicing All illustrations, photographs and specifications contained in this manual are of the newest information available at the time of publication. KUBOTA reserves the right to change all information at any time without notice. Since this manual includes many models, information or illustrations and photographs can show more than one model. February, 2009 © KUBOTA Corporation 2009 KiSC issued 06, 2009 A I INFORMATION KiSC issued 06, 2009 A INFORMATION CONTENTS 1 . SAFETY FIRST .............................................................................................................................. I-1 2. SPECIFICATIONS .......................................................................................................................... I-4 3. IMPORTANT ITEMS OF EXHAUST EMISSION REGULATION.................................................... I-6 [1] INLET AND EXHAUST SYSTEM ............................................................................................. I-6 [2] ALTITUDE COMPENSATION KIT (WG972-E2, DF972-E2) .................................................... I-6 [3] LPG REGULATOR WITH VAPORIZER (DF972-E2) ............................................................... I-6 [4] KUBOTA RECOMMENDED LPG FUEL SPECIFICATIONS (DF972-E2) ................................ I-6 [5] LENGTH OF THE LPG VAPOR HOSE (DF972-E2) ................................................................ I-6 [6] GAS REGULATOR (DG972-E2) .............................................................................................. I-7 [7] KUBOTA RECOMMENDED FUEL SPECIFICATIONS (DG972-E2) ....................................... I-7 [8] LENGTH OF THE GAS HOSE (DG972-E2) ............................................................................. I-7 4. PERFORMANCE CURVES ............................................................................................................ I-8 5 . DIMENSIONS ............................................................................................................................... I-10 6. WIRING DIAGRAM ....................................................................................................................... I-14 KiSC issued 06, 2009 A 1 . SAFETY FIRST SAFETY FIRST • This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. • It is essential that you read the instructions and safety regulations before you attempt to repair or use this unit. DANGER • Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING • In

FAQs

What models are covered in this workshop manual?

The manual covers WG972-E2, DF972-E2, and DG972-E2 engines and related servicing information.

What safety guidance is included before starting service?

It instructs reading all safety instructions, cleaning the work area and engine, parking on stable ground, letting the engine cool, stopping the engine and removing the key, disconnecting the battery negative cable, and hanging a “DO NOT OPERATE” tag.

What does the “Safety First” section explain about hazards and warnings?

It defines hazard levels (DANGER, WARNING, CAUTION) and explains that the manual symbol warns of personal injury risk, along with the meaning of IMPORTANT and NOTE guidance.

Nov 4, 2026

Uploaded by Aldword