Kubota WG1605-L-E3 Operator's Manual
Liquid cooled gasoline/lpg engine
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- Workshop manual (145 pages) ,
- Operator's manual (72 pages) ,
- Operator's manual (71 pages)
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Summary of Contents for Kubota WG1605-L-E3
- Page 1 OPERATOR S MANUAL KUBOTA LIQUID COOLED GASOLINE LPG ENGINE MODELS WG1605-G-E3 WG1605-L-E3 WG1605-GL-E3 1BGAAAIAP0020 1BGAAAIAP0020 EG523-8916-2 READ AND SAVE THIS BOOK...
- Page 2 FOREWORD You are now the proud owner of a KUBOTA Engine. This engine is a product of KUBOTA quality engineering and manufacturing. It is made of fine materials and under a rigid quality control system. It will give you long, satisfactory service. To obtain the best use of your engine, please read this manual carefully.
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Page 3: Table Of Contents
CONTENTS SAFE OPERATION ....................1 SERVICING OF THE ENGINE ..................1 IMPORTANT INFORMATION OF EMISSION REGULATION ........2 NAMES OF PARTS .....................3 PRE-OPERATION CHECK ..................5 BREAK-IN.........................5 DAILY CHECK......................5 OPERATING THE ENGINE ..................6 STARTING THE ENGINE (NORMAL)..............6 STOPPING THE ENGINE ..................8 CHECKS DURING OPERATION ................9 Radiator cooling water (Coolant).................. - Page 4 CONTENTS Tightening torques and leak check for LPG regulator with vaporizer......23 Fuel system diagrams ....................24 ELECTRIC WIRING ....................25 FAN BELT ......................25 Adjusting fan belt tension ....................25 CARRIAGE AND STORAGE ..................26 CARRIAGE......................26 STORAGE ......................26 TROUBLESHOOTING ....................27 SPECIFICATIONS .....................30...
- Page 5 UNAUTHORIZED MODIFICATIONS to the engine may impair the function and/or safety and affect engine life. If the engine does not perform properly, consult your local Kubota Engine Distributor first. 2. WEAR SAFE CLOTHING AND PERSONAL PROTECTIVE EQUIPMENT (PPE) A DO NOT wear loose, torn or bulky clothing around the...
- Page 6 SAFE OPERATION 3. CHECK BEFORE STARTING & OPERATING THE ENGINE A Be sure to inspect the engine before operation. Do not operate the engine if there is something wrong with it. Repair it immediately. A Ensure all guards and shields are in place before operating the engine.
- Page 7 SAFE OPERATION A If running the engine on LPG, use the standard LPG fuel recommended by KUBOTA. The use of other fuel may cause a hazardous or dangerous condition. A LPG fuel in the gaseous state is heavier than air and will settle in low areas, this may be hazardous.
- Page 8 SAFE OPERATION 8. CAUTIONS AGAINST BURNS & BATTERY EXPLOSION A To avoid burns, be cautious of hot components, e.g. muffler, muffler cover, radiator, hoses, engine body, coolants, engine oil, etc. during operation and after the engine has been shut off. A DO NOT remove the radiator cap while the engine is running or immediately after stopping.
- Page 9 A DO NOT mix different types of Anti-freeze. The mixture can produce a chemical reaction causing harmful substances. Use approved or genuine KUBOTA Anti-freeze. A Be mindful of the environment and the ecology. Before draining any fluids, determine the correct way to dispose of them.
- Page 10 2. Clean warning and caution labels with soap and water, dry with a soft cloth. 3. Replace damaged or missing warning and caution labels with new labels from your local KUBOTA dealer. 4. If a component with warning and caution label(s) affixed is replaced with a new part, make sure the new label(s) is (are) attached in the same location(s) as the replaced component.
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Page 11: Safe Operation
However, when in need of parts or major service, be sure to see your KUBOTA dealer. For service, contact the KUBOTA Dealership from which you purchased your engine or your local KUBOTA dealer. When in need of parts, be prepared to give your dealer the engine serial number. -
Page 12: Important Information Of Emission Regulation
LPG filter can be used. Only this regulator assy (D-STAGE) and lock off valve with LPG filter can be installed by an authorized KUBOTA DISTRIBUTOR or the manufacturer of the equipment in which this engine is used. -
Page 13: Names Of Parts
Coolant drain cock (23) Flywheel (12) Oil filter cartridge (24) ECU (Engine Control Unit) G Type : WG1605-G-E3, L Type : WG1605-L-E3, GL Type : WG1605-GL-E3 A (24) ECU (Engine Control Unit) is not connected to the engine in the figure above. - Page 14 NAMES OF PARTS Type Ref. Part Name Sensor (O2) Fuel pump Manifold (FPM) Regulator assy (D-STAGE) Lock off valve Catalytic converter G Type : WG1605-G-E3, L Type : WG1605-L-E3, GL Type : WG1605-GL-E3...
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Page 15: Pre-Operation Check
PRE-OPERATION CHECK PRE-OPERATION CHECK BREAK-IN During the engine break-in period, observe the following by all means: 1. Change engine oil and oil filter cartridge after the first 50 hours of operation. (See "ENGINE OIL" in "PERIODIC SERVICE" section.) 2. When ambient temperature is low, operate the machine after the engine has been completely warmed up. DAILY CHECK To prevent trouble from occurring, it is important to know the conditions of the engine well. -
Page 16: Operating The Engine
OPERATING THE ENGINE OPERATING THE ENGINE STARTING THE ENGINE (NORMAL) To avoid personal injury: A Do not allow children to approach the machine while the engine is running. A Be sure to install the machine on which the engine is installed, on a flat place. A Do not run the engine on gradients. - Page 17 NOTE: "LPG" position. *The step 1 above is for GL type only. *The fuel selector switch is not provided by KUBOTA. NOTE: *The step 2 above is for GL type only. *The fuel selector switch is not provided by KUBOTA.
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Page 18: Stopping The Engine
OPERATING THE ENGINE STOPPING THE ENGINE Gasoline 1. Cool down the engine for 2 to 3 minutes. 1. Cool down the engine for 2 to 3 minutes. 2. Turn the starter switch to the "OFF" ( ) 2. Turn the starter switch to the "OFF" ( ) position. -
Page 19: Checks During Operation
1. Engine oil level (See "ENGINE OIL" in "PERIODIC SERVICE" section.) BImmediately stop the engine if; A The engine suddenly slows down or accelerates. A Unusual noises are suddenly heard. BIf MIL (Malfunction Indicator Light) lights Consult your KUBOTA dealer. -
Page 20: Maintenance
MAINTENANCE MAINTENANCE To avoid personal injury: A Be sure to conduct daily checks, periodic maintenance, refueling or cleaning on a level surface with the engine shut off and remove the key. A Before allowing other people to use your engine, explain how to operate, and have them read this manual before operation. -
Page 21: Service Intervals
*1 Change more often when operating under dusty conditions. *2 If you do not have the proper tools and/or are not mechanically proficient, contact your local KUBOTA dealer. To ensure the best quality and reliability, use new KUBOTA Genuine parts or their equivalents for repair and replacement,... - Page 22 *1 Change more often when operating under dusty conditions. *2 If you do not have the proper tools and/or are not mechanically proficient, contact your local KUBOTA dealer. To ensure the best quality and reliability, use new KUBOTA Genuine parts or their equivalents for repair and replacement,...
- Page 23 *1 Change more often when operating under dusty conditions. *2 If you do not have the proper tools and/or are not mechanically proficient, contact your local KUBOTA dealer. To ensure the best quality and reliability, use new KUBOTA Genuine parts or their equivalents for repair and replacement,...
- Page 24 *1 Change more often when operating under dusty conditions. *2 If you do not have the proper tools and/or are not mechanically proficient, contact your local KUBOTA dealer. To ensure the best quality and reliability, use new KUBOTA Genuine parts or their equivalents for repair and replacement,...
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Page 25: Periodic Service
PERIODIC SERVICE PERIODIC SERVICE FUEL BLPG Fuel is flammable and can be dangerous. You should [WG1605-L-E3 / WG1605-GL-E3] handle fuel with care. 1. Use Commercial LPG only. 2. Fuel tank is liquid withdrawal type. BGasoline [WG1605-G-E3 / WG1605-GL-E3] A Be sure that the fill up valve and the liquid withdrawal 1. -
Page 26: Engine Oil
It takes some time for the oil to drain down to the oil pan. Models Engine oil quantity WG1605-G-E3 6.0 L WG1605-L-E3 (1.59 U.S.gals.) WG1605-GL-E3 A Engine oil should have properties of API classification SL or higher. A Change the type of engine oil according to the ambient temperature. -
Page 27: Changing Engine Oil
PERIODIC SERVICE BChanging engine oil BReplacing the oil filter cartridge To avoid personal injury: To avoid personal injury: A Be sure to stop the engine before A Be sure to stop the engine before draining engine oil. changing the oil filter cartridge. A When draining engine oil, place A Allow engine... -
Page 28: Spark Plug
PERIODIC SERVICE SPARK PLUG RADIATOR Coolant will last for one day's work if filled all the way up BCleaning and adjustment clearance before operation start. Make it a rule to check the coolant If the spark plug electrode or its insulator is soiled or is level before every operation. -
Page 29: Changing Coolant
When it is caution and securely retighten the cap. between the "FULL" and "LOW" marks, the coolant A If coolant should be leak, consult your local KUBOTA will last for one day's work. dealer. -
Page 30: Checking Radiator Hoses And Clamp Bands
Always use a 50/50 mix of long-life coolant and clean soft 5. Check to see if radiator water pipe is clogged. water in KUBOTA engines. Contact KUBOTA concerning coolant for extreme BCleaning radiator core (outside) conditions. If dust is between the fin and tube, wash it away with 1. -
Page 31: Air Cleaner
If mixed with the cleaning agent, sludge may build up, adversely affecting the engine parts. 7. Kubota's genuine long-life coolant has a service life of 2 years. Be sure to change the coolant every 2 years. A The above data represents industry standards that... -
Page 32: Evacuator Valve
PERIODIC SERVICE BEvacuator valve BDust indicator (optional) Open the evacuator valve once a week under ordinary If the red signal on the dust indicator attached to the air conditions - or daily when used in a dusty place - to get rid cleaner is visible, the air cleaner has reached the service of large particles of dust and dirt. -
Page 33: Fuel System And Diagrams
A All fuel connections added to this engine must be installed by qualified personnel and utilizing recognized procedures and standards. A These non-KUBOTA installed parts, such as hoses, fittings, and piping should be approved for LPG use and conform to UL, CSA, NFPA, MSHA and all other applicable standards. -
Page 34: Fuel System Diagrams
(10) LPG manual valve (11) LPG tank (12) Coolant hose A The -marked component parts are Not Provided by KUBOTA. (A) Gasoline line (B) Bleed / Return circuit (C) Gaseous propane line (D) Liquid propane line (E) Hot coolant inlet or outlet line... -
Page 35: Electric Wiring
PERIODIC SERVICE ELECTRIC WIRING FAN BELT BAdjusting fan belt tension To avoid personal injury: C Shorting of electric cable or wiring To avoid personal injury: may cause a fire. A Be sure to stop the engine and A Check to see if electric cables and remove the key before checking the wiring are swollen, hardened or belt tension. -
Page 36: Carriage And Storage
CARRIAGE AND STORAGE CARRIAGE AND STORAGE CARRIAGE STORAGE To avoid personal injury: To avoid personal injury: A Fix the engine securely not to fall A Do not clean the machine with engine during operation. running. A Do not stand near or under the A To avoid the danger of exhaust fume engine while carrying it. -
Page 37: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING The engine malfunctions can result from a large number of causes. The following describes symptoms that are encountered relatively more often than others, their major causes and remedies. B When it is difficult to start the engine Cause Countermeasures Check the fuel tank, fuel filter, fuel hoses and fuel pump. - Page 38 TROUBLESHOOTING B When engine speed is insufficient Cause Countermeasures Improper or defective spark plug * Clean or replace. Defective ignition coil * Replace. Defective throttle body * Replace. Breather tube has separated. * Attach correctly. Improper input signal to ECU * Check the wire harness.
- Page 39 Overload running * Reduce load. Head gasket defective or water * Replace parts. leakage A If the cause of trouble can not be found, consult your KUBOTA dealer. A If MIL (Malfunction Indicator Light) lights up, consult your KUBOTA dealer.
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Page 40: Specifications
SPECIFICATIONS SPECIFICATIONS WG1605-G-E3 WG1605-L-E3 Model Gasoline Type Vertical, Water-cooled 4 cycle No. of cylinders - bore x stroke mm (in.) 4- 79 x 78.4 (3.11 x 3.09) Total displacement L (cu-in.) 1.537 (93.79) SAE Gross kW(HP) / 42.5 (57.0) / 3600 41.0 (55.0) / 3600... - Page 41 SPECIFICATIONS WG1605-GL-E3 Model Gasoline Type Vertical, Water-cooled 4 cycle No. of cylinders - bore x stroke mm (in.) 4- 79 x 78.4 (3.11 x 3.09) Total displacement L (cu-in.) 1.537 (93.79) SAE Gross kW(HP) / 42.5 (57.0) / 3600 41.0 (55.0) / 3600 intermittent min (rpm) 37.0 (49.6) / 3000...