Shindaiwa DG25MK User guide

OWNER’S AND OPERATOR’S MANUAL
Vertical, Water-Cooled 4-Cycle Diesel Engine
DG25MK-400M/R
X753-007 95 1
X753801-350 1
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.

Introduction
Thank you for purchasing this Shindaiwa soundproof diesel engine generator.
This manual has been created to ensure safe usage of this generator. Be sure to read this
manual before operation. Improper operation/handling of this generator will result in an accident
or malfunction.
Handling/Operation of this generator can only be performed by persons who understand the
contents of this manual and can handle/operate the generator in a safe manner. Persons who
suffer from an illness, are taking medicine or not feeling way such that safe operation would be
negativelyaffectedmustnot operate thisgenerator.
Work performed using this generator and handling/operation of this generator must be in
accordance with corresponding laws and regulations based on such laws. Consult with the
authorized distributor where this generator was purchased if you have any inquiries regarding
the corresponding laws.
Always be sure to include this manual when loaning out this generator and instruct operating
personnelto readthis manualbeforeoperation.
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
purchasedif thismanualbecomesdusty, grimyor torn.
Consult with the authorized distributor where this generator was purchased if you have any
inquiries regardinganypointsrelatedtothis generatorand manual.
Wheninquiringaboutthisgenerator, besureto provide themodel name andserialnumber.
If disposing of this generator, do so in a manner that is in compliance with laws related to
industrial waste. Contact the authorized distributor where the generator was purchased if you
haveanyinquiriesregardingproperdisposal.
Cautionnoticeranks inthismanualareclassifiedas follows.
WARNING : Indicates a potentially hazardous situation which, if not
avoided, can result in death or serious injury
CAUTION : Indicates a potentially hazardous situation which, if not avoided,
canresult inminoror moderateinjuryandpropertydamage.
< Note> : Othertypes of cautionsand indications.
Note that CAUTION items can also lead to major accidents under some circumstances if
notcorrectly followed.
All caution notices areimportant. Be suretofollowallofthem.

1
Table of Contents
1. Safety Instructions ............................................................................. 2
2. Specifications..................................................................................... 6
2-1. Specifications............................................................................6
2-2. Ambient Conditions...................................................................7
3. Applications........................................................................................7
4. Part Names..........................................................................................7
4-1. External View/Part Names ........................................................7
4-2. Operation Panel Part Names ....................................................9
5. Equipment......................................................................................... 10
5-1. Controller.................................................................................10
5-2. Warning Indicators ..................................................................13
5-3. Meters and Switches...............................................................15
5-4. Frequency change...................................................................16
5-5. Fuel Piping Switch (3Way Fuel Valve).....................................17
6. Transporting/Installing..................................................................... 17
6-1. Transport Procedures.............................................................. 17
6-2. Installation Procedures............................................................18
7. Load Connections............................................................................ 19
7-1. Load Cable Selection.............................................................. 19
7-2. Connecting Load Cables......................................................... 19
7-3. Earth Leakage Relay and Grounding......................................21
8. Pre-Operation Inspection................................................................. 22
8-1. Checking Engine Oil................................................................22
8-2. Checking Coolant....................................................................23
8-3. Checking the Fuel ................................................................... 24
8-4. Checking for Fuel, Oil and Coolant Leaks...............................24
8-5. Checking the Battery............................................................... 25
9. Operating Procedures...................................................................... 26
9-1. Initial Startup/Pre-Check.......................................................... 26
9-2. Procedures during Operation .................................................. 28
9-3. Stopping Operation ................................................................. 29
9-4. Protective Functions................................................................ 29
9-5. Connecting with External Fuel Tank........................................ 31
10. Inspection/Maintenance................................................................. 32
11. Long-Term Storage......................................................................... 38
12. Troubleshooting ............................................................................. 39
13. Generator Circuit Diagram............................................................. 42
14. Engine Electrical Circuit Diagram................................................. 44

2
WARNING : SUFFOCATION FROM EXHAUST FUME
Do not operatethegeneratorinpoorlyventilated areassuchas indoorsor tunnels,asthe
exhaustgas of the enginecontains substances that areharmfultohuman health.
Do not direct exhaustfumes at pedestriansor buildings.
WARNING : ELECTRIC SHOCK
Do not operatethe equipment withany doorsor covers open.
Always turn all thebreakers OFF, place the Power Switch in the OFFposition andstop the
enginebefore connecting/disconnectingtheloadcabletothe output terminal.
Always turn the Power Switch to the OFF positionandstoptheengine, then close andlock
OPERATION PANELDOOR before checking or maintaining the engine or anyequipment.
Closethe output terminalcoverbeforeoperating.
Do nottouch the generator if thegenerator or casingor yourbodybecomes wet during
operation.
Do nottouchoutputterminals or internalelectric partswhilethe generator is operating.
Ground the everyearthgrounding terminaltothe earthasset out inthemanual.
If evenoneof all is unconnected by mistake or accident, it will bemuch more dangerous for
humanbodythan theNO-RELAYcase, because leaking current inevitably goesthroughthe
body.
Eventhoughalltheearthterminals of the loadshave beengroundedto theearth, thebonnet
groundingterminalshould begroundedtotheearth.
Thereis always a danger of being electrocuted by short-circuit. Be sureto testgenerator’s
insulation resistance periodically.
Grounding should be made after the engine is stopped.
Whenever theEarth leakage relay is activated, you shouldalways repair theleaking place first
of all.
WARNING : INJURY
Closeall doorsandlock them during operation.
Do not openthe check door when thePowerSwitch is in the ON position. It will cause injury
by rotating parts such as cooling fansand fan belt.
Always turn the Power Switch to the OFF positionandstoptheengine, then close andlock
OPERATION PANELDOOR before checking or maintaining the engineor anyequipment.
Usethe lifting hook to lift the machines,and do not liftupbyusing tie downs. Useof such
couldresult inthegeneratorfalling.
Do not liftany additional weight such as fuel tanksor trailers.
No persons shouldever be undera liftedgenerator.
Always be sure to check thatthe breakers on load side andswitches for any equipment using
the generator areatOFFbefore turning thebreaker toON.Also besuretoadvise personnel
on the load side that power will be turnedon or off before operating the breaker.
Do notmodifytheequipment anddo not operatewith parts removed.
CAUTION : EYE/SKIN INJURY
Wearrubberglovesandother protectiveweartoprotecteyes, skin andclothing fromthe
batteryfluid which containsdiluted sulfuricacid. If the batteryfluidcontactseyes or skin, wash
out immediately with asufficient amount of clean water. Besure toreceivemedicaltreatment,
especiallyif thefluid contactstheeyes.
1. Safety Instructions

3
CAUTION : EXPLOSION
Never use or rechargethebattery if the fluid level is below the minimum level.
Do not createsparks or bring flame near the battery as it generatesflammablegas.
CAUTION : FIRE
Do not carryflammable items(suchas fuel,gas andpaint)or itemsthat arehighlycombustible
nearthe generator as themuffler, exhaustgas andotherpartsbecome extremelyhot.
Position thisgenerator 1 mormore from walls or other hindrances, and on a level surface.
Do not connect thegenerator output to indoor wiring.
This generator usesdieselfuel.Always be sureto stoptheengine andnot bring flamesclose
when inspecting fuelor refueling. Wait until the engine has cooledbeforeperforming such
procedures.
Do not use this equipmentwhen leak is found, and repair theleaking location before
operating.
Always be sure to wipe up anyspilled fuel or oil.
Allowthe generator to coolbefore covering with the protective cover.
Never allowflame tocomecloseto thegenerator.
Always make sure that the Power Switch is OFF position when working on piping.
After working onthepiping,checkthatthereisnofuelleakage.
Absolutely never inspect or performmaintenanceto the equipment near fireor other open
flame.
CAUTION : BURNS
Do nottouch the engineand surrounding components immediatelyafter stopping theengine
as theyarestill extremelyhot.
Do not openthe radiatorcap immediatelyafter stopping the engine, to avoidsustaining burns
from hotvapor.
Hotsteam gushes out from the coolant sub-tank if thegenerator overheats. Donot touchthe
coolant sub-tank.
Always be sure to stop the engine and allowthe engine to cool when performing inspection or
maintenanceof engine oil. Opening theoil level gauge or oil filler cap during operation will
result inhotoilgushing out.
CAUTION : INJURY
Always be sure to use lifting hookswhen lifting up thegenerator, andslowly lift it straight up.
Personnelperforming lifting work must wear protective gearssuch as helmets, safetyshoes
andgloves.
Remove the woodties if using anchors to secure thegenerator.
Position thegenerator on a level stable surface so that it cannot slide or move in any manner.
Before starting operation, always be sure to turn off all switches of equipment using the
generatorand all breakers toOFF.
Do not move the generatorduring operation.
Do not operatethegeneratorif it has beenmodified or anypartshavebeen removed.
Securely fixtheequipment with rope or similar item sothat it cannot move when transporting
by truck or othervehicle.
Check that the surrounding area is safe, before setting toAuto Mode.
Be sure to communicatebetween operators mutuallybefore attempting to set "Auto Mode" to
avoidmechanicaltroubleandincidents.

4
CAUTION : PROPERTY DAMAGE
Do not usethe equipmentforanyimproper applications.Improper usagecanresultinan
accident or malfunction.
If using this generator for medicalequipment, check beforeuse withthe medicalequipment
manufacturer, doctor, hospital orsimilar entity.
Checkthat the generator output setting,output terminalconnectionandloadpowersource are
consistent.
Cableburnoutcan occur due to generated heat if the load current exceeds the allowable
currentof the cable.
Thevoltage drop betweencables is large if thecable is excessively long or thin, resulting in
decreased input voltagetoequipment using the generator, thereby causing decreased
performance, faultyoperationand malfunction.
When changing the frequency, be suretochangeboth the Frequency Selector Switchand
Controller settings.

5
Warning/Caution Label Locations
If warning or caution labels become damaged and difficult to read, replace with new
labels in the indicated locations. Order labels using part number indicated in the
parenthesis.

Injury
(Part no. : X505-007550)

Electric shock
(Part no. : X505-007560)

Caution: gm spec LLC
(Part no. : X505-007840)

Caution: fire
(Part no. : X505-007650)

Warning/Caution
(Part no. : X505-008690)

Injury
(Part no. : X505-010350)

Burn
(Part no. : X505-007830)

Caution: automatically
(Part no. : X564-000510)

6
2-1. Specifications
Model
Unit
DG25MK-400M
Alternator
Generating Type
-
Rotating Filed, Brushless 3-Phase
Synchronous Alternator
Rated Frequency
Hz
50
60
Rated Output
kVA
20
25
kW
16
20
Rated Voltage
V
400 [200] *1
440 [220] *1
Rated Current
A
28.9 [57.7] *1
32.8 [65.6] *1
Winding
-
3-phase, 4-wire
Power factor
%
80
Insulation class
-
F
Excitation
-
Self-Excitation(Brushless)
No. of poles
-
4
Engine
Types
-
Vertical Water-cooled 4-cycle Diesel Engine
Model (Manufacturer)
-
V2403 (KUBOTA)
No. of Cylinders (bore x stroke)
mm
4 (87 X 102.4)
Continuous rated output
kW
19.1
23.7
PS
26.0
32.2
Rated speed
min-1
1500
1800
Displacement
L
2.434
Combustion system
-
Direct Fuel Injection
Cooling method
-
Radiator
Lubricating method
-
Forced lubrication
Starting method
-
Electric start
Fuel
-
Diesel Fuel （ASTM No. 2-D）
Lubricant oil
-
CF class
Fuel tank capacity
L
65
Lubricant volume (Full)
L
9.7
Cooling water volume
L
9.7
Starting motor capacity
V-kW
12 - 1.4
Charging dynamo capacity
V-A
12 - 30
Battery
-
80D26R
Unit
Length
mm
1500
Width
mm
700
Height
mm
1000
Dry Weight
kg
625
Installed Weight
kg
705
*1:The values in brackets are optional data, when modified to 200/220V by the dealers only.
As default 3-phase output is set at 400/440V, contact your authorized distributor to adjust
the terminal lug setting if necessary to obtain 200/220V for 3-phase output.
2. Specifications

7
Tie-Down
Radiator Plate
Lifting Hook
Tie-Down
Operation Panel Door
Fuel Inlet Cover
Output Terminal Cover
2-2. Ambient Conditions
Use this generator in ambient conditions as described below. Failure to provide these
conditions can result in problems such as malfunction, insufficient output and reduced
durability.
■Ambient temperature: -15 to 40 °C
■Relative humidity: 85% or less
■Elevation: 300 m or less
Power source for submerged pumps and similar civil engineering equipment
Power source for lighting and similar equipment
Power source for electrical tools and household appliances
4-1. External View/Part Names
CAUTION : PROPERTY/SECONDARY DAMAGE
Do not use for any application other than those listed above.
If using this generator for medical equipment, check before use with the
medical equipment manufacturer, doctor, hospital or similar entity.
4. Part Names
3. Applications

8
Coolant Sub-Tank
Engine Check Door
Oil Level Gauge
Oil Filter
External Tank Fuel Return
External Tank Fuel Inlet
Water Separator
Battery
Alternator Check Door
3way Fuel Valve
Air Cleaner
Coolant Drain Plug
Oil Drain Plug
Fuel Filter
Oil Filler
Accessories
Owners
Manual
Door Key (2 pieces)
Grounding Rod
Fuel Drain Plug
Radiator
* Shown with side-plate removed.

9
(Inside)
4-2. Operation Panel Part Names
①
Circuit Breaker
②
Controller
③
Power Switch
④
Hour Meter
⑤
Voltage Regulator
⑥
Earth Leakage Relay
⑦
Frequency Selector Switch (inside)

10
Stop Mode Button
Manual Mode Button
Auto Mode Button
Lamp Test /
Air Bleeding Button
Start Button
5-1. Controller
This generator has a Controller which is used for starting or stopping the power generator
or the engine, for monitoring. If you turn the Power Switch to ON position, the status
Screen appears.(Refer to section "5-1. Controller (2)Operation Display".)
(1) Button
○Stop Mode Button
This button places the controller into its Stop Mode.
Pressing this button stops the engine and deletes any resolved alarms.
○Manual Mode Button
This button places the controller into its Manual Mode. (Refer to section
"9-1. Initial Startup/Pre-Check (1) Manual Start")
○Auto Mode Button
This button places the controller into its Auto Mode. (Refer to section "9-1.
Initial Startup/Pre-Check (2) Auto Start")
○Lamp Test / Air Bleeding Button
While this button is pressed, all LEDs on the controller are turned on as a
lamp test function. Press and hold for approximately 2 seconds to
automatically starts air-bleeding device. (Refer to section "9-2.Procedures
during Operation (2)Adjustment during Operation")
○Start Button
Pressing this button in Manual Mode starts the engine. (Refer to section
"9-1. Initial Startup/Pre-Check (1) Manual Start")
5. Equipment

11
Button
Operation Display
Button
Button
Button
Button
(2) Operation Display
Contents
Button, Button
Switches the main screen displayed on the Operation
Display.
Button, Button
Displays the detailed status of the main screen.
< Note>
If an error occursduring operation, theOperation Display automatically switches to theAlarm
screen.
If there is no operation for about 6 minutes while the engine is stopped, it will shift
sleep mode to reduce battery consumption. Once it shift to sleep mode, the display of
the Operation Display will disappear. To exit sleep mode, press any button on the
controller.
Main screens
○Status
Status Screen
Contents
Generator at Rest
Engine is stopped.
Generator Available
Engine is running.
Generator Locked Out
It is in a state where some abnormality has occurred and
the engine cannot be started. Check the contents on the
Alarm screen.
Waiting For Generator
Displayed when voltage and frequency are lower than the
set value.
○Engine
Status Screen
Contents
Engine Speed [rpm]
Engine speed
Engine Coolant Temp. [°C]
Coolant temperature meter
Engine Battery Voltage [V]
Battery voltage meter and battery charge meter
Engine Run Time
Hour meter
Engine Fuel Level [%][Litre]
The capacity of the fuel tank.
When fuel is full, "++++" is displayed. When fuel is empty,
"----" is displayed.

12
○Generator
Status Screen
Contents
Generator Voltage (ph-N)
Phase-Neutral voltage meter.
Generator Voltage (ph-ph)
Phase-Phase voltage meter.
Generator Frequency
Frequency meter.
Generator Current (A)
Current meter.
Generator Earth Current (A)
No use.
Generator Load Ph-N
(kW)(%)
Real power and load factor.
Generator Total Load
(kW)(%)
Total of real power and load factor.
Generator Load Ph-N (kVA)
Apparent power and load factor.
Generator Total Load
(kVA)(%)
Total Apparent power and load factor.
Generator Power Factor
Power factor and average of power factor.
Generator Load ph-N (kvar)
Reactive power.
Generator Total Load (kvar)
Total of reactive power.
Generator Load (kWh, kVAh,
kvarh)
Accumulation of real power/apparent power/reactive
power.
Gen Phase Sequence
No use.
Active Config
Ph-N voltage, frequency, voltage set in theAlt Config is
displayed.
○Mains
Status Screen
Contents
Mains Voltage
No use.
Mains Frequency
No use.
Mains Phase Sequence
No use.
Active Config
No use.
○Alarms
If an error occurs during operation, the Operation Display automatically switches to the
Alarm screen, and displays error details. Refer to "9-4.Protective Functions" for details
of main errors.
When the Stop Mode Button is pressed after the error is cleared, the alarm display
disappears.
< Note>
Even if the earth leakagerelay operates and the breaker is turnedoff,nothing is displayed on
theAlarmscreen.
○Event Log
Displays the operation history of this generator. This Event Log records up to 250 items.
When EventLog exceeds 250 items, the oldest history is overwritten.
○Communications
Display the Serial Port.
○PLC Instrument
Display the time of air-bleeding.
○About
Display the version information.

13
(3) Editor
This generator has with the Controller Editor function, which allows you to change
frequency, date and contrast of the controller.
Press the Stop Mode Button.
Press the Stop Mode Button and " " button together to enter the editor
display.
Press the " " button or the " " button to select the main screen.
Main screens
○Alt Config
Status Screen
Contents
Config to Edit
No use.
Default Config
Change frequency.
(Refer to section"5-4. Frequency change" )
○Display
Status Screen
Contents
Contrast
Set the Contrast.
The default contrast is 55%.
Date and Time
Set the Date and Time.
Press the " " or " " button to select the item you want to change.
Press the " " button.
Press the " " or " " button to change the item.
Press the " " button to confirm the changes.
To save the changes, press and hold the " " button.
Not to save the change, press and hold the Stop Mode Button.
5-2. Warning Indicators
WARNING : INJURY
Do not open the check door when the Power Switch is in the ON position. It
will cause injury by rotating parts such as cooling 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.
CAUTION: BURNS
Do not touch the engine and surrounding components immediately after
stopping the engine as they are still extremely hot.
This generator is equipped with the following warning indicators: Low Oill Pressure,
High Coolant Temperature, Air Filter Clogging, Overload Pre-Caution, Fail to Start,
Water In Fuel, Charge Alt Failure, Fuel Level Low. Turn the Power Switch to ON position
causes "Low Oill Pressure" and "High Coolant Temperature" warning indicator to
illuminate, and all indicator lights will go off as engine starts. An indicator illuminates if
malfunction/fault occurs during operation and the engine automatically stops depending
on the fault type. If the generator automatically stopped, check each illuminated warning
indicator at the time of engine stop, and inspect the failed component.
8
7
6
5
4
3
2
1

14
(1) Low Oil Pressure
CAUTION: BURNS
Always be sure to stop the engine and allow the engine to cool when
performing inspection or maintenance of engine oil. Opening the oil gauge or
oil filler cap during operation will result in hot oil gushing out.
If the engine oil pressure drops below 0.49 x 100 kPa during operation, the Low Oil
Pressure indicator illuminates on the controller, and "Oil Pressure Low Switch" appear
on the Operation Display, and the engine will be automatically stopped. If this occurs,
check the engine oil level and add engine oil until it reaches the maximum level.
< Note >
ThisLowOil Pressureindicatorcannot detect oildeterioration. Changetheengine oil
periodically.(Refer to section “8-1. Checking Engine Oil”.)
(2) High Coolant Temperature
CAUTION: BURNS
Do not open the radiator cap immediately after stopping the engine.
Do so will result in hot steam gushing out.
Hot steam gushes out from the coolant sub-tank if the generator overheats.
Do not touch the coolant sub-tank.
If the coolant temperature rises above 115 °C during operation, the High Coolant
Temperature indicators illuminate on the controller, and "Coolant Temp High Switch"
appear on the Operation Display, and the engine will be automatically stopped. If this
occurs, hot steam will gush out of the coolant sub-tank. Check the coolant sub-tank
coolant level after the generator cools and add coolant to the coolant sub-tank if it is
insufficient. (Refer to section “8-2. Checking Coolant”.) If the coolant is at the specified
amount, it is probable that the fan belt is loose or there is a coolant leak. Wait for the
engine to cool and inspect for these problems.
< Note>
Thecoolant temperaturecannotbe detected if the coolant levelis excessively low.Alwaysbe
sure to check the coolant level inthe radiator coolant sub-tank beforestarting work.
(3) Air Filter Clogging
If the air cleaner element becomes clogged during operation, theAir Filter Clogging
indicators illuminate on the controller, and "Air Filter Clogging" appear on the Operation
Display. If it is appeared, immediately stop the engine and clean or replace the air
cleaner element. (Refer to section “10. Inspection/Maintenance (3) Air Filter Element
Cleaning/Replacement”.)
(4) Overload Pre-Caution
If the output current exceeds around 80% of the rated current, the Overload indicators
illuminate on the controller, and "Over Load Pre-Caution" appear on the Operation
Display. Use this generator in a range that does not exceed the rated current while the
Overload indicators is illuminating. The Overload indicators turns off when the output
current drops below 80% of the rated current.
< Note>
Whenthe output currentreaches the ratedcurrent, "Over Current ImmediateWarning" is
displayedontheOperationDisplayandoutput to theloadside is cut.
(5) Fail to Start
If the engine fails to start for three times in succession, "Fail to Start" is displayed on
Operation Display. If that happens, turn the Power Switch to the OFF position, and
inspect the generator. (Refer to section "12. Troubleshooting")

15
Circuit Breaker
Power Switch
Voltage
Regulator
Earth Leakage
Relay
Hour Meter
(6) Water in Fuel
If the liquid stored in the water separator exceeds approximately 110 ml during operation,
"Water in Fuel" appear on the Operation Display. If it illuminates, immediately stop the
engine and drain the liquid stored in the water separator. (Refer to section “10.
Inspection/Maintenance (4) Draining Liquid in Water Separator”.)
(7) Charge Alt Failure
"Charge Alt Failure" appear on the Operation Display when charging is not possible
during operation.If charging is not possible and the battery voltage drops below 8 V, the
ENGINE warning indicator also lights up and the engine automatically stops. If this
occurs, contact the authorized distributor where the generator was purchased.
(8) Fuel Level Low
If the amount of fuel is small, "Fuel Level Low" appear on the Operation Display, and the
engine will be automatically stopped. Check if there is a sufficient amount of fuel and
add fuel insufficient.
5-3. Meters and Switches
Meters
(1) Hour Meter
Displays the operating time. Use this as a reference for managing periodic inspection
interval.
< Note >
EngineRunTime of controller and HourMeter value may not be matched. In that case,
you check the HourMeter time.
Switches
(1) Power Switch
This is the main Power Switch of the generator.
When the Power Switch turned to OFF position, the engine is stopped.
< Note >
If there is no operation for about 6 minutes while the engine is stopped, it will shift
sleep mode to reduce battery consumption. Once it shift to sleep mode, the display of
the Operation Display will disappear. To exit sleep mode, press any button on the
controller.
If the engine is not started for a long time when the Power Switch is ON position, the
battery will deteriorate.

16
Frequency
Selector Switch
(2) Circuit Breaker
This switch is for transmitting electrical power to the load side. Turn to ON position to
output voltage to the output terminals. Output to the load side is cut off when there is a
short circuit or overload on the load side.
(3) 3-Phase Earth Leakage Relay
When current leak occurs, it trips to stop power transmission to load.
< Note >
Do notusethis relayas theON/OFFswitch totheload.
Voltage Regulator
(1) Voltage Regulator
This dial is for regulating voltage output by the generator.Turn the dial clockwise to
increase the voltage and counterclockwise to decrease it.
5-4. Frequency change
WARNING : ELECTRIC SHOCK
Always turn all the breakers OFF, place the Power Switch in the OFF position
and stop the engine.
CAUTION : PROPERTY DAMAGE
When changing the frequency, be sure to change both the Frequency
Selector Switch and Controller settings.
Loosen the two screws to open the
operation panel.
Change the Frequency Selector
Switch if the frequency in the area
where using this generator
changes.
Close the operation panel to tighten
two screws.
Turn the Power Switch to ON
position.
Press the Stop Mode Button and " " button together to enter the editor
display.
Press the " " button or the " " button to select the Alt Config.
Press the " " button or the " " button to select the Default Config and press
the " " button.
Press the " " button or the " " button, select the same frequency as in step
2 and press the " " button.
Press and hold the " " button to save settings.
< Note >
Check that no loads are connected before using the frequency selector switch.
Be sure to select "50Hz 400V" or "60Hz 440V". Contact distributor if you want to use
"50Hz 200V" or "60Hz 220V".
This switch is set to 50Hz when shipped from the factory.
9
8
7
6
5
4
3
2
1

17
5-5. Fuel Piping Switch (3Way Fuel Valve)
CAUTION : FIRE
Always make sure that the Power Switch is OFF position when working on
piping.
Always be sure to wipe up any spilled fuel.
After working on the piping, check that there is no fuel leakage.
Change the 3-way fuel valve to switch to supply fuel from the external tank. In that case,
the internal fuel tank is not used.
(1) If using the internal fuel tank
The 3-way fuel valve turned to the “A” side when the generator is shipped from the
factory.
< Note >
When disconnecting piping from the external tank, turn the lever to the “A” side, and attach the
connecting hose to theexternaltank fuel inlet/return.
(2) If using an external fuel tank
Connect hoses from the external fuel tank to the external fuel inlet and the external fuel
return. Change the lever of the 3way fuel valve to the “B” side to supply fuel from the
external tank.
(Refer to “9-5. Connecting an External Fuel Tank” for corresponding procedures.)
6-1. Transport Procedures
WARNING : INJURY
Do not lift up the unit using tie down. Use of such could result in the generator falling.
No persons should ever be under a lifted generator.
CAUTION : INJURY
Always be sure to use lifting hooks when lifting up the generator, and slowly lift it
straight up.
Personnel performing lifting work must wear protective gears such as helmets,
safety shoes and gloves.
Do not move the generator during operation.
(1) Lifting Procedures
Always be sure to use lifting hooks when lifting up the generator, and slowly lift it straight
up.
6. Transporting/Installing
Position A
Position B
Inlet Port
Retun Port
3Way Fuel
Valve
External Fuel
Ports