Kubota WG3800-GL-E3 User Manual

72 pages

To Next Page

To Next Page

Page #1 background image

Loading...

Page #1 background image

WG1605

-

G

-

E3/L

-

E3/GL

-

E3/N

-

E3/LN

-

E3

WG1903

-

G

-

E3/L

-

E3/GL

-

E3/N

-

E3/LN

-

E3

WG2503

-

G

-

E3/L

-

E3/GL

-

E3/N

-

E3/LN

-

E3

WG3800

-

G

-

E3/L

-

E3/GL

-

E3/N

-

E3/LN

-

E3/L

-

E5/N

-

E5

PRINTED IN JAPAN

©

KUBOTA Corporation 2011

U.S.A. :KUBOTAENGINEAMERICACORPORATION

505

SchelterRoad,Lincolnshire,Illinois

60069

U.S.A.

Telephone:(

847

)

955

-

2500

Canada :KUBOTACANADALTD.

5900



14

thAvenue,Markham,Ontario,L

3

S

4

K

4

,Canada

Telephone:(

905

)

294

-

7477

France :KUBOTAEUROPES.A.S

19

-

25

,RueJulesVercruysse,Z.I.BP

88

,

95101

ArɡenteuilCedex,France

Telephone:(

33

)

1

-

3426

-

3434

Italy :KUBOTAEUROPES.A.SItalyBranch

ViaGrandi,

29



20068

PeschieraBorrome(MI)Italy

Telephone:(

39

)

02

-

51650377

Germany :KUBOTA(DEUTSCHLAND)GmbH

SenefelderStr.

3

-

5



63110

Rodɡau/Nieder-Roden,Germany

Telephone:(

49

)

6106

-

873

-

0

U.K. :KUBOTA(U.K.)LTD.

DormerRoad,Thame,Oxfordshire,OX

9



3

UN,U.K.

Telephone:(

44

)

1844

-

214500

Australia :KUBOTAAUSTRALIAPTYLTD.

25

-

29

PermasWay,Truɡanina,VIC

3029

,Australia

Telephone:(

61

)-

3

-

9394

-

4400

Malaysia :KUBOTAMALAYSIASDN.BHD.

No.

3

JalanSepadu

25

/

123

TamanPerindustrianAxis,

Seksyen

25

,

40400

ShahAlam,SelanɡorDarulEhsanMalaysia

Telephone:(

60

)

3

-

736

-

1388

Philippines :KUBOTAPHILIPPINES,INC.

232

QuirinoHiɡhway,Baesa,QuezonCity

1106

,Philippines

Telephone:(

63

)

2

-

422

-

3500

Indonesia :P.T.KUBOTAINDONESIA

TamanIndustriBukitSemaranɡBaru(BSB)BlokD.

1

Kav.

8

, Kel. Jatibaranɡ-

Kec.Mijen,Semaranɡ,Indonesia

Telephone:(

62

)-

24

-

7472849

Japan :KUBOTACorporation

EnɡineExportDept.

2

-

47

,Shikitsuhiɡashi

1

-chome,Naniwa-ku,Osaka,Japan

556

-

8601

Telephone:(

81

)

6

-

6648

-

2155

Fax:(

81

)

6

-

6648

-

3521

OPERATOR'S MANUAL

KUBOTA LIQUID COOLED GASOLINE

/

LPG ENGINE

MANUEL DE L'OPERATEUR

MOTEUR À ESSENCE

/

LPG REFROIDI PAR LIQUIDE DE KUBOTA

BEDIENUNGSANLEITUNG

FLÜSSIGKEITSGEKÜHLTER BENZIN-

/

LPG-MOTOR VON KUBOTA

MANUALE DELL'OPERATORE

MOTORE KUBOTA A BENZINA

/

LPG CON RAFFREDDAMENTO A LIQUID

O

MANUAL DE INSTRUCCIONES

MOTOR KUBOTA DE GASOLINA

/

LPG REFRIGERADO POR LÍQUIDO

Code No. EG523-8917-5

WG1605-G-E3

WG1605-L-E 3

WG1605-GL-E3

WG1605-N-E3

WG1605-LN-E3

WG1903-G-E3

WG1903-L-E 3

WG1903-GL-E3

WG1903-N-E3

WG1903-LN-E3

WG2503-G-E3

WG2503-L-E 3

WG2503-GL-E3

WG2503-N-E3

WG2503-LN-E3

WG3800-G-E3

WG3800-L-E 3

WG3800-GL-E3

WG3800-N-E3

WG3800-LN-E3

WG3800-L-E5

WG3800-N-E5

1BGAAAIAP0020 1BGAAAIAP0540 1BGAAAIAP0220 1BGAAAIAP0440

1910-0614

READ AND SAVE THIS BOOK

MANUEL A LIRE ET A CONSERVER

DIESE ANLEITUNG BITTE SORGFÄLTIG DURCHLESEN

UND GRIFFBEREIT AUFBEWAHREN

LEGGETE E CONSERVATE QUESTO MANUALE

LEAN Y CONSERVEN ESTE MANUAL

Table of Contents

Questions and Answers:

Y
ypetersonAug 18, 2025
Why is it difficult to start my Kubota WG3800-GL-E3?
- M
  Melissa KirbyAug 19, 2025
  Several factors can make it hard to start your Kubota Engine. It could be due to fuel not flowing, which means you should check the fuel tank, fuel filter, fuel hoses, and fuel pump. Clean the filter if it contains water or foreign matter. Other possible causes include incorrect valve clearance (adjust when the engine is cold), thick engine oil in cold weather (change the oil grade), a discharged battery (charge it, and in winter, remove, charge, and store indoors), a clogged air cleaner (clean or replace it), wet spark plug electrodes (dry them), a defective starter or main switch (repair or replace), a defective vaporizer or lock off valve (replace), low compression (replace worn parts like valves, rings, pistons, or liners), or a disconnection in the wire harness (check the harness).
H
Heather LopezAug 22, 2025
What to do if Kubota Engine suddenly stops?
- C
  Calvin RivasAug 22, 2025
  If your Kubota Engine suddenly stops, there are several things to investigate. First, check the fuel tank to ensure you have enough fuel and inspect the fuel system for any air or leaks. Next, check the engine oil level using the oil level gauge and examine the lubricating oil system, replacing the oil filter cartridge if needed. A clogged air cleaner can also cause the engine to stop, so clean or replace it. Finally, check the wire harness for any disconnections.
J
Joshua SotoAug 25, 2025
Why Kubota WG3800-GL-E3 output is insufficient?
- J
  jamesharrisonAug 26, 2025
  Insufficient output in your Kubota Engine can stem from several issues. Check the fuel system for any problems that might be causing insufficient fuel supply. Inspect the lubricating oil system for overheating of moving parts, ensuring the lubricating oil filter is working correctly and that bearing clearances are within factory specifications; replace the filter element if it's clogged. Other potential causes include insufficient compression (replace worn parts like valves, rings, pistons, and liners), incorrect valve clearance (adjust when the engine is cold), a dirty air cleaner (clean or replace it), or a defective spark plug or ignition coil (clean/replace the spark plug and replace the ignition coil).
S
Sarah JordanAug 28, 2025
Why is my Kubota Engine speed insufficient?
- P
  Pamela CobbAug 28, 2025
  If your Kubota Engine speed is insufficient, start by inspecting the spark plug for defects and clean or replace it as needed. Other potential causes include a defective ignition coil or throttle body (replace them), a separated breather tube (attach it correctly), or an improper input signal to the ECU or disconnection (check the wire harness).
L
leslie49Aug 31, 2025
What to do if my Kubota WG3800-GL-E3 output is insufficient?
- J
  Jonathan CarlsonAug 31, 2025
  If your Kubota Engine's output is insufficient, several issues could be the cause. Insufficient compression may be the problem, which can be resolved by replacing bad valves or worn rings, pistons, and liners. Also, check the fuel system for insufficient fuel. Overheating moving parts can also cause this problem, so inspect the lubricating oil system, ensure the lubricating oil filter is working correctly (replace if the filter element is deposited with impurities), and verify the bearing clearance is within factory specifications. Other potential causes are incorrect valve clearance (adjust when the engine is cold), a dirty air cleaner (clean or replace), a defective spark plug (clean or replace), or a defective ignition coil (replace).
H
Heidi JosephSep 3, 2025
What causes a Kubota WG3800-GL-E3 to overheat?
- N
  Nancy MunozSep 3, 2025
  Several factors can cause a Kubota Engine to overheat. Check the engine oil level and replenish if insufficient. Inspect the fan belt for breakage or elongation, and change or adjust it as needed. Ensure the coolant level is sufficient and adjust the antifreeze concentration if it's excessive by adding water or changing to the specified mixing ratio. Clean any dust clogging the radiator net or fins. Also, check for corrosion inside the radiator or coolant flow route, cleaning or replacing parts as necessary. Other potential causes include defective components like the fan, radiator, radiator cap, thermostat, or temperature sensor (replace as needed), running with an overload (reduce the load), or a defective head gasket with water leakage (replace parts).
B
Betty DavisSep 5, 2025
What causes excessive black exhaust gas in a Kubota WG3800-GL-E3 Engine?
- N
  nbellSep 6, 2025
  Excessive black exhaust gas in a Kubota Engine can be attributed to a bad fuel system or fuel of extremely poor quality. Check the fuel system and replace the fuel if it is poor quality.
A
Amy HayesSep 9, 2025
What causes excessive lubricant oil consumption in Kubota WG3800-GL-E3 Engine?
- W
  wwadeSep 9, 2025
  Excessive lubricant oil consumption in a Kubota Engine can be due to several reasons. Oil may be leaking from the oil seal, gasket, or other areas, in which case you should replace the leaking components. Other potential causes include a defective valve stem seal or worn/stuck piston rings and liners (replace).

Kubota WG3800-GL-E3 Specifications

General

Engine Model	WG3800-GL-E3
Number of Cylinders	4
Lubrication System	Forced Lubrication
Engine Type	4-cycle, gasoline
Max Power Output	11.0 HP (8.2 kW) at 3600 rpm
Max Torque	19.5 Nm (2.0 kg·m) at 2500 rpm
Cooling System	Liquid Cooled
Ignition System	Electronic Ignition
Starting System	Electric Start

Summary

Foreword

Safety First

Explains safety symbols (DANGER, WARNING, CAUTION, IMPORTANT, NOTE) used in the manual.

Safe Operation

Observe Safety Instructions & PPE

Read manual, wear PPE, follow general safety rules for operation.

Pre-Operation Checks & Environment Safety

Checks before starting, clean environment, safe fuel handling.

Exhaust, Fire, and Fluid Safety

Prevent exhaust hazards, fire risks, and manage escaping fluids.

Burns, Battery, and Rotating Parts Safety

Precautions against burns, battery explosions, and rotating parts.

Fluid Disposal and Maintenance Safety

Safe anti-freeze handling, disposal, and maintenance procedures.

Servicing of the Engine

Pre-Operation Check

Break-in and Daily Checks

Procedures for initial engine break-in and daily pre-operation checks.

Operating the Engine

Starting the Engine Safely

Safety precautions and steps for starting the engine correctly.

Fuel Selection and Startup Sequence

Steps for selecting fuel type and initial startup procedures.

Stopping the Engine

Procedures for safely stopping the engine for different fuel types.

Checks During Operation and Emission System

Maintenance

General Safety for Maintenance

Essential safety rules for performing maintenance tasks.

Maintenance Service Intervals

Schedule of maintenance tasks based on operating hours.

Extended Service Intervals

Maintenance intervals for engine oil and oil filter for longer service.

Long-Term Service Intervals

Maintenance for spark plugs, air cleaners, and fuel systems.

Fuel System and Fan Belt Maintenance

Cooling System and Air Cleaner Maintenance

Periodic Service

Gasoline Fuel System Checks

LPG and Natural Gas Fuel System Checks

Checking and Adding Engine Oil

Changing Engine Oil

Replacing the Oil Filter Cartridge

Spark Plug Maintenance

Checking and Changing Coolant

Overheating Precautions and Coolant Checks

Anti-freeze Usage and Safety

Air Cleaner Maintenance

Electric Wiring and Fan Belt Adjustment

Troubleshooting

Engine Starting Issues

Symptoms, causes, and solutions for difficulty starting the engine.

Insufficient Output and Engine Speed Issues

Troubleshooting insufficient power, engine speed problems, and exhaust gas issues.

Engine Overheating Troubleshooting

Causes and countermeasures for engine overheating.

Related product manuals

Kubota WG3800-G-E3

Preview: Kubota WG3800-L-E5

Kubota WG3800-L-E5

Kubota WG3800-LN-E3

Preview: Kubota WG1605

Kubota WG972 E3

Preview: Kubota WG752 E3

Kubota WG752 E3

Preview: Kubota WG972-E2

Kubota WG972-E2

Preview: Kubota WG1605-E3

Kubota WG1605-E3

Preview: Kubota WG1903-G-E3

Kubota WG1903-G-E3

Preview: Kubota WG1605-G-E3

Kubota WG1605-G-E3

Kubota WG2503-L-E3

Kubota WG2503-GL-E3