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26 

Fixing Clamp 

 

-Post 

 

+Post 

 

8-6. Checking Battery 

 

CAUTION : Injuries to eyes and skin 

 

  Battery fluid contains diluted sulfuric acid.    Avoid contact with eyes, skin 

or on clothing.    If the acid comes in contact, especially with eyes, 
flush with a lot of water, and contact physician or doctor immediately. 

 

CAUTION : Explosion 

 

  When the liquid level is below the LOWER level, never use the equipment 

nor recharge battery. 

  Battery may emit some combustible gas, so keep it away from fire and 

sparks. 

 

 

Check the fluid level. If the level is near or lower than the LOWER LEVEL, add 

distilled water until the fluid level reaches the UPPER LEVEL limit. 

 

Make sure that the battery cables are firmly secured to the posts. Tighten the clamps 

more if necessary. 

< Note >

 

  Check the hydrometer of the battery fluid. If it falls below 1.23, the battery requires 

recharging. Please call our authorized distributor or our engineering section. 

 

Replacing the Battery 

 

Remove the clamp and cable from negative 

(-)

 

post from the battery (always remove negative 
side first).

 

 

 
Remove  the  battery  fixing  clamp. 
 
 
Remove  the  cable  from  positive 

(+)

 
 
Remove  the  battery  from  the  seat. 
 

 

Reinstall a new Battery in the reverse order (always install the cable to the 

positive (+) 

post of 

the new Battery first). 

 

 
 

 

 

 

 

 

 

 

 

Summary of Contents for DGA12DM

Page 1: ...L Vertical Water Cooled 4 Cycle Diesel Engine DGA12DM X753 008 75 0 X753801 600 0 CAUTION Do not operate the Generator or any other appliance before you have read and understood the instructions for use and keep near for ready use ...

Page 2: ......

Page 3: ...eration Store this manual in a specified location where it will be secure and available for consulting at any time Order another copy from the authorized distributor where this generator was purchased if this manual becomes dusty grimy or torn Consult with the authorized distributor where this generator was purchased if you have any inquiries regarding any points related to this generator and manu...

Page 4: ...necting Load 16 7 1 Select Load Cable 16 7 2 Connecting Load Cable 17 7 3 RCCB and Grounding 18 8 Initialization and Pre check 21 8 1 Checking Engine Oil 21 8 2 Checking Coolant Water 22 8 3 Checking Fan Belt 24 8 4 Checking Fuel 24 8 5 Checking Fuel Engine Oil and Coolant Leakage 25 8 6 Checking Battery 26 9 Operation 27 9 1 Initialization and Preparation 27 9 2 Procedures during Operation 29 9 3...

Page 5: ...fans and fan belt Always turn the Power Switch to the OFF position and stop the engine then close and lock OPERATION PANEL DOOR before checking or maintaining the engine or any equipment Always be sure to use Lifting Hook when lifting up the generator Using other parts when lifting up the generator could cause the result of falling Do not attempt to lift the equipment with any additional weight su...

Page 6: ...ow the generator to cool before covering with the protective cover Never allow flame to come close to the generator Always make sure that the engine is stopped when working on piping After working on the piping check that there is no fuel leakage Absolutely never inspect or perform maintenance to the equipment near fire or other open flame CAUTION ELECTRIC SHOCK Do not sprinkle water on equipment ...

Page 7: ...or similar item to avoid any unexpected move when transporting by truck or other vehicle CAUTION PROPERTY DAMAGE Do not use the equipment for any improper applications Improper usage can result in an accident or malfunction If using this generator for medical equipment check before use with the medical equipment manufacturer doctor hospital or similar entity Check that the generator output setting...

Page 8: ...place new labels at the appropriate locations as specified in the following figure When ordering the labels use the following part numbers 1 Injuries Part no X505 004630 2 Caution coolant Part no X505 004650 3 Safety Precaution Part no X505 004660 4 Caution Electric Shock Part no X505 004640 ...

Page 9: ...ta D1703 Cylinder bore x stroke mm 3 87 x 92 4 Continuous Rated Output kW PS 12 4 16 9 Speed min 1 1500 Displacement L 1 647 Combustion Method Swirl Chambered Cooling Method Water cooling radiator Lubricating Trochoid pump force feed lubrication Starting Starter Motor Fuel Diesel Oil SAE Class CD or higher Fuel Tank Capacity L 60 Lubricant Volume L 7 3 including filter 0 3 L Coolant Volume L 8 2 i...

Page 10: ...ltitude Less than 300m Power Supply for submersible Pump etc Power Supply for lightings etc Power Supply for electric tools home appliances 4 1 Outer and Main Components 3 Use 4 Parts Components Water Separator Oil Gage Three Way Valve Operation Panel Door Lug for rope Lifting Lug Output Terminal Cover Fuel Inlet Emergency Stop Button Engine Check Door Outer Fuel Outlet Coolant Drain Lug for Rope ...

Page 11: ...t Breaker 6 Throttle Switch 2 Controller 7 Voltage Regulator 3 Emergency Stop Button 8 Power Switch Air Bleeding 4 3 Phase Breaker 9 Battery Isolator 5 1 Phase Breaker Accessories Nipple 2 pieces Fuse 10A Owner s Manual Fuse 5A Fuse 50A ...

Page 12: ...8 4 3 Output Panel Side Door 3 Phase RCCB 1 Phase RCCB 1 Phase Receptacle 15A 3 Phase Receptacle 20A Bonnet Grounding Terminal Output Terminal Cover ...

Page 13: ...f the gen set START button Press this button to initiate the start sequence of the engine LEFT button Use this button to move left or to change the mode The button can change the mode only if the main screen with the indicator of currently selected mode is displayed RIGHT button Use this button to move right or to change the mode The button can change the mode only if the main screen with the indi...

Page 14: ...Use this button to move down or decrease value ENTER button Use this button to finish editing a setpoint or moving right in the history page GCB button No use GENERATOR status indicator There are two states Gen set OK indicator is green and Gen set failure indicator is red Green LED is on if the generator voltage is present and within limits Red LED starts flashing when gen set failure occurs Afte...

Page 15: ... OFF and re set the button turning clockwise after using the emergency stop button 3 Main Circuit Breaker By turning this circuit breaker on the control panel to ON Power will be transferred to the output receptacles and to the load side The breaker trips to OFF either overload or short circuit Note Do not use RCCB as the ON OFF switch to the load 4 3 Phase Circuit Breaker 1 Phase Circuit Breaker ...

Page 16: ...hen turning the switch to OFF the engine electric circuit does not activate due to no battery power 7 Throttle Switch The switch is to change engine speed revolution Turn the switch to IDLING when engine start warm up or cool down and turn to RUN when using the equipment at the rated speed 50Hz 5 3 Voltage Regulator 1 Voltage Regulator The dial adjusts generator output voltage By turning the dial ...

Page 17: ...from external fuel tank Connect hoses from the external fuel tank to the external fuel intake and the external fuel return ports and set the lever for 3 way valve to B position You can now supply the fuel from the external gas tank For detailed instructions refer to 9 5 Connecting to External Fuel Tank CAUTION Fire Always stop the engine when performing any work on the fuel line Always wipe any dr...

Page 18: ...e a Lift lug when lifting the equipment for transportation 2 Transporting the equipment When transporting the equipment make sure that the equipment is secured properly with ropes tied to the roping lugs through Note Always use extreme care when loading unloading and transporting the equipment otherwise damages and malfunction of the equipment may bring 6 Transportation and Installation Lifti ng L...

Page 19: ...paint etc away from the equipment Always set the equipment on hard flat surface Keep the equipment at least 1m from a wall or any obstacles to allow workable space to access the control panel and opening of the panel door Note This equipment must be operated on hard and flat surface Operating under any other conditions may result in malfunctions Do not block the airflow from radiator vent or muffl...

Page 20: ... be greater voltage drop between cables which brings voltage drop to loads It may result in reduced performance in the connected loads malfunction or damages Note It is recommended to select the proper gauge and length of cable in consideration of the maximum 5 marginal drop only for the rated voltage between the terminals of loads and generator via the cables Expedient Formula the voltage drop of...

Page 21: ...put to any indoor wiring Note Divide loads into 3 circuits proportionally as possible when using the maximum output power especially and connect them to each phase R S T respectively Be careful to limit the current under the rated current per the phase Note that the 1 phase output power decreases when 3 phase output power is used simultaneously Be careful to limit the total current under the rated...

Page 22: ...eaker is activated you should always repair the leaking place first of all The generator is provided with the Residual Current Circuit Breaker RCCB to detect any Leakage produced due to such the trouble as insulation failure of the load while the generator is running and to cut off the circuit for protection against any accident such as electrical shock resulting from the trouble The specification...

Page 23: ...s to Green from RED and RCCB trips to OFF Which shows NORMAL Push the TEST button Blue on 1 Phase RCCB Red lamp turns to OFF and RCCB trips to OFF Which shows NORMAL In the event you cannot complete every step of the above procedure to the end the device is out of order Consult with our authorized distributor or our engineering section and ask to repair WARNING Electric Shock Injuries Before turni...

Page 24: ...kage point and restore it by the following procedure Overload happens when the breaker activates but the Residual Current Circuit Breaker does not activate Turn the 3 Phase RCCB to ON to restore Turn the 1 Phase RCCB to RESET to restore By the above procedure you can reset the RCCB to ON positions 1 ...

Page 25: ... checking for engine oil be sure to keep the equipment leveled and insert not screw in forcibly the oil gauge all the way in Prior to starting the equipment make sure to fill the engine oil to the MAX line through the oil filler Note Check engine oil volume IN 5 MINUTES LATER always after stopping engine or replenishing fuel If the equipment is not leveled you cannot obtain accurate oil level Do n...

Page 26: ...s Do not open the radiator cap while operating this equipment or immediately after stopping the equipment to avoid sustaining burns from hot vapor or water Do not touch the engine and muffler during operation and immediately after stopping the equipment for the temperature can reach extremely high levels Check the radiator and coolant reservoir tank for water and add water in case of shortage 1 Ch...

Page 27: ...mixed LLC by different brands Be sure to change wholly in less than 2 years or 1000 hours Mixture ratio for reference only Ambient temperature 15 23 35 Mixture ratio 30 40 50 Be sure to use rubber gloves when handling LLC because LLC is toxic When drinking LLC incidentally be sure to belch it out promptly and consult with doctor Wash it out in water completely when LLC spatters on clothes LLC is d...

Page 28: ...rnator pulley 2 Condition Check for any damage on the fan belt Replace if necessary 8 4 Checking Fuel CAUTION Fire Always wipe any drip of Diesel fuel or oil Do not use this equipment when a leak is found Repair the equipment before use Check for the fuel level in the tank Add if necessary Note Use Diesel fuel ASTM D975 No 2 D in the event ambient temperature reaches down to 5 Always use the Diese...

Page 29: ...ed engine oil with diesel fuel Some manufacturers of large diesel engines allow this however for your diesel engine do not use the diesel fuel which has been contaminated with engine oil Besides causing engine damage such fuel can also affect emission control Before using any diesel fuel check with the service station operator to see if the fuel has been mixed with engine oil Do not use any fuel a...

Page 30: ...r or lower than the LOWER LEVEL add distilled water until the fluid level reaches the UPPER LEVEL limit Make sure that the battery cables are firmly secured to the posts Tighten the clamps more if necessary Note Check the hydrometer of the battery fluid If it falls below 1 23 the battery requires recharging Please call our authorized distributor or our engineering section Replacing the Battery Rem...

Page 31: ...s paint etc away from the equipment Always operate this equipment on flat surface and at least 1 meter away from any objects wall box etc CAUTION Injuries Always place the equipment on a flat and stable surface to keep the equipment from sliding When starting the engine turn off the connected equipment and set the circuit breaker to OFF position Turn every circuit breaker to OFF position Turn the ...

Page 32: ... rated output load Adjusting the Voltage Regulate Dial set it to the required voltage 50Hz RUN 415V Turn the circuit breakers to ON to send power to the load side WARNING Electric Shock Injuries Before turning RCCB to ON to send power to the load side always ensure that any circuit breaker and switch of loads are positioned to OFF In the case the generator and the load are away from each other pro...

Page 33: ... adjust voltage using the voltage regulator dial Extracting the air out of the fuelling system for engine stop due to no fuel This generator is equipped with automatic extracting feature Thus if the engine stops due to running out of fuel follow the next steps to extract the air out Add fuel to the generator Turn the Power Switch to AIR BLEEDING position It will take approximately 30 seconds to ex...

Page 34: ... OFF Turn every circuit breaker to OFF position Turn the Throttle Switch to IDLING position Let engine idles for approximately 3 minutes for cool down Press the Stop button to shut off the engine Turn the Power Switch to OFF position Turn the Battery Isolator to OFF position 5 6 1 2 4 7 3 ...

Page 35: ...lly stop operation when there is a fault malfunction during operation and this is to warn the operator of the fault location by use of the Operation Display Check the fault location when the engine is automatically stopped or appear warning on the Operation Display Protection Feature List No Action Abnormality RCCB Trip Breaker Trip Engine Automatic Shutdown Controller display Cause 1 Low Oil Pres...

Page 36: ...Note Use always oil proof hose in 8 10mm inner diameter as connecting hose The fuel level in the external fuel tank should be 0 to 3m higher than the bottom of the equipment Otherwise it may cause engine malfunction or stoppage To avoid any leak from the external fuel intake and return ports always turn the lever for 3 way Valve to A position whenever piping work is performed Use extreme caution w...

Page 37: ...p the engine and keep away from fire Wait until the engine cools down before performing any checks CAUTION Fire Always wipe any drip of fuel or oil Do not use this equipment when a Leak is found Repair the equipment before use To optimize the use of this generator we recommend the periodical equipment checks and maintenance based on following maintenance matrix Note The authorized technicians only...

Page 38: ...eparator Drain water Drain water from Fuel Filter or replace Replace Drain water from Fuel Tank Clean water separator and clean Gauze Filter in Engine Feed Pump Clean Clean inside Fuel Tank Leak check fuel oil and coolant Replacing fuel hose or 1 yr Clean or replace Air Cleaner Element Clean Replace Battery fluid level check Battery hydrometer check Fan Belt check Fan Belt change or 2 yr Radiator ...

Page 39: ...ecking Engine Oil 2 Oil Filter Change Drain the engine oil fully as described in 1 Change Engine Oil Loosen and remove the oil filter using an oil filter wrench Smear a little engine oil on the rubber gasket of the new oil filter Screw a new filter into place and tighten it by hand until the gasket contacts the seat Then give it additional 3 4 1 turns using an oil filter wrench after the gasket to...

Page 40: ...as dry type element is used Open the vacuum valve to clean voluminous dust every week in clean place and every day in dusty place When dirt or water found in the cleaner wipe it out with cloth Do not touch the element besides cleaning Element Part No Kubota Part No Outer Element TA040 93231 Inner Element TA040 93221 Clean Air Filter Element Dried contaminants adhered Blast the compressed air to El...

Page 41: ...LOSE Turn the Ring Nut counterclockwise and remove Cup and Fuel Filter Element Remove the Fuel Filter by filter wrench Dispose water or dirt When dirt is adhered to the Fuel Filter Element clean the filter by compressed air Reinstall in the reverse order Note Be sure to confirm that there is no dirt on O RING when installing the cup Be sure to confirm that there is no fuel leakage in the fuel line...

Page 42: ... fuel tank Drain Every 200 hours Remove the Fuel Drain Plug Turn the Fuel Drain Lever to OPEN Draining the water out turn the Fuel Drain Lever to CLOSE Tighten the Fuel Drain Plug 1 2 3 4 Fuel Drain Lever Fuel Drain Plug ...

Page 43: ...he Coolant Drain Plug Drain the sub tank stay and drain coolant in the sub tank Reinstall the sub tank and fill coolant up to MAX level Fill coolant into radiator up as far as the water inlet level Tighten the radiator cap Close the radiator cap cover and Reinstall the radiator plate Note Refer Coolant to 8 2 Checking Coolant Water Change 2 years or 1000 hours 2 3 4 5 6 7 9 1 8 Coolant Drain MIN M...

Page 44: ...ait until the engine cools down before performing any checks CAUTION Fire Always wipe any drip of Diesel fuel or oil Do not use this equipment when a leak is found Repair the equipment before use 1 Storage Procedures If the generator will not be used for more than two months perform the following maintenance and storage procedures Remove Battery Change engine oil Drain fuel in the Fuel Tank and Fu...

Page 45: ...ension and longer than the width of the lower generator Do not stack more than 2 units The lower generator should be bigger than the upper generator in size and weight Do not operate the stacking stacked equipment WARNING Electric Shock Do not operate the equipment if the equipment or you are wet Before performing any equipment check or maintenance stop the engine CAUTION Injuries When performing ...

Page 46: ...valve position is wrong 8 Fuel cut solenoid motor does not work 1 Add fuel 2 Clean Change fuel filter 3 Clean Change gauze filter 4 Drain water in water separator fuel filter or fuel tank 5 Extract the air 6 Check piping connection 7 Check lever 3 way valve 8 1 Check Change fuse 8 2 Check Change fuel cut solenoid Ambient temperature falls down below zero 1 Fuel is frozen 2 Water in fuel line is fr...

Page 47: ...defective 3 Disconnected circuit loose terminal or departed 4 Initial exciter is defective 5 Alternator is defective 1 Ask our distributor to repair 2 Ask our distributor to repair 3 Ask our distributor to repair 4 Ask our distributor to repair 5 Ask our distributor to repair The voltage does not rise to the rated voltage 1 Controller is defective 2 AVR is defective 3 Voltage regulator dial is def...

Page 48: ...se 4 Battery terminal is corroded 5 Fuse is blown 6 Disconnected circuit loose terminal or departed 7 Controller or Power Switch is defective 1 Check battery liquid or Change 2 Change battery 3 Fix Tighten terminal 4 Clean terminal 5 Check Change fuse 6 Ask our distributor to repair 7 Ask our distributor to repair ...

Page 49: ...45 13 Generator Circuit Diagram ...

Page 50: ...46 14 Engine Circuit Diagram ...

Page 51: ......

Page 52: ... 2021 ...

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