Shindaiwa dga50c User manual

CAUTION
Do not operate the
equipment before you
have read and understood
the instructions for use.
OWNER’S AND
OPERATORS MANUAL
DGA50C
DGA50C
X750-023 80 1
X750801-250 3
Table of Contents
Page
1. Safety Guidelines
2. Specifications
2-1. Data
2-2. Ambient Condition
3. Use
4. Parts
4-1. Outer and Main Components
4-2. Operation Panel
4-3. Output Panel
5. Equipment
5-1. Monitor Lamp
5-2. Meters
5-3. Fuel Line Changeover Valve
(3-Way Valve)
6. Transportation & Installation
6-1. How to transport
6-2. Installation
7. Connecting load
7-1. Select Load Cable
7-2. Connecting Load Cable
7-3. ELCB and Grounding
8. Initialization and Pre-check
8-1. Engine Oil
8-2. Coolant / Water
8-3. Fan Belt
8-4. Fuel
8-
5. Fuel, Oil and Coolant Leakage
8-6. Battery
9. Operation
9-1. Initialization and Preparation
9-2. During Operation
9-3. Stopping
9-4. Protection Feature
9-5. Connect to External Fuel Tank
10. Check and Maintenance
11. Long Term Storage
12. Troubleshooting
13. Generator Circuit Diagram
14. Engine Circuit Diagram
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SOUND-PROOF
DIESEL ENGINE GENERATOR

1
Introduction
Thank you for purchasing Shindaiwa Sound Proof Diesel Engine Generator.
This user manual was created to ensure the safe operation of this equipment.
Therefore, the manufacturer of this equipment strongly recommends that the user
follow the instructions herein, to avoid unnecessary accidents and repairs.
Please operate this equipment after thoroughly reviewing and understanding the
contents of this manual.
Please attach this manual, if the equipment will be sub-leased.
Please store this manual near the equipment for easy reference.
■
■■
■Following convention will be used throughout the manual to indicate
the degree of cautions.
Danger Can cause serious injuries or death.
Caution
Can cause minor injuries or damage to the equipment or
other properties.
<Caution> Other types of caution
Even some of the items noted in『Caution』may lead to serious injuries.
Please read all item and follow all the safety guidelines.
Danger : Suffocation from exhaust fume
Exhaust fume from the engine contains many elements harmful to
human. Do not operate this equipment in poorly ventilated area, such as
inside a room or in a tunnel.
Danger : Electric Shock
Do not insert metal objects (such as pin or wire) into plug-in receptacles.
Do not touch wiring or electric parts inside the equipment during
operation.
Ground the every grounding terminal to the earth as set in the manual. If
even one of all is unconnected by mistake or accident, it will be much
more dangerous for human than the NO-RELAY case, because leaking
current inevitably goes through the body.
Even when the ELCB in the load is grounded to the earth, be sure to
connect the terminal of bonnet in the equipment.
Be sure to check the resistor value of the equipment periodically so that
you can avoid the electric shock caused by electric leakage
Before connecting or disconnecting a load cable from output receptacles,
always turn the circuit breaker to OFF position.
1 Safety Guidelines

2
Before performing any equipment check or maintenance, stop the
engine, and remove the engine key. A person performing the
maintenance should always keep the key.
Danger : Injuries
Close all doors and place locks during operating this equipment, to avoid
injuries by unintentionally touching cooling fan and fan belt.
Caution : Suffocation from exhausting fume
 Do not point the exhaust fume toward pedestrians or building.
Caution : Injuries to eye 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 your physician immediately.
Caution : Explosion
Do not use the equipment or charge the battery, in the case the battery
fluid level is lower than the LOWER level.
Battery may emit some combustible gas, so keep it away from fire and
sparks.
Caution : Fire
The equipment uses Diesel Oil as a fuel. When refueling, always stop
the engine and keep away from fire. Moreover, always wait until the
engine cools down before refueling.
Always wipe any drip of Diesel fuel or lubrication oil. Do not use this
equipment when a leak is found. Repair the equipment before use.
Temperature around muffler and exhaust can get extremely high. Keep
any inflammable items (such as fuel, gas, 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.).
Do not connect AC output to any indoor wiring.
Always wait until the equipment cools down, before placing any covering
materials for storage.
Caution : Burns
Never open the radiator cap during operation or just after engine stops
as hot vapor may belch out.
Do not touch the engine and muffler during operation and immediately
after stopping the equipment, for the temperature can reach extremely
high.

3
When checking engine oil or changing oil, always stop the engine, and
wait until the engine cools down. If you open either the oil gauge or the
oil plug during operation, hot oil may cause some injury.
Caution : Injuries
When lifting the equipment, always use a lift hook. Do not lift a handle,
for it may cause equipment to drop due to handle breaking off.
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.
Do not move the equipment during operation.
When performing equipment check and maintenance, always stop the
engine.
Do not operate the equipment, if the equipment is being modified or if
the parts are removed.

4
Location of Warning labels
When warning label becomes unreadable or damaged,
place new label at the appropriate location as specified in the following figure.
When ordering the label, use the following part numbers.
1. Injuries (No.19402-00210)
2. Caution (coolant）(No.19402-00295)
3. Safety Precaution (No.19402-00306)
4. Caution (Electric Shock) (No.19402-00215)

5
2-1. Data
Unit DGA50C
Generating Method - Rotating Filed, Brushless 3-Phase
Synchronous Generator
kVA 50
Rated Output kW 40
Rated Voltage V 415
Rated Current A 69.6
Rated Frequency Hz 50
Rated Speed min-1 1500
Phase & Wiring - 3-Phase 3-Wire
Power Factor % 80
Insulation Class - Alternator: F Exciter: B
Exciting Method - Self Excitation(Brushless)
Generator
Poles - 4
Method - Vertical, Water-cooled 4-Cycle, Diesel Engine
Model No. - Isuzu BB-4BG1T
Cylinder-bore x troke mm 4-105 x 125
Continuous Rated
Output kW{PS}
48.5{66.0}
Speed min-1 1500
Displacement L 4.329
Combustion Method - Direct Injection(Turbo-charged)
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 160
Lubricant Volume L 13.2(including filter 1.1 L)
Coolant Volume L 17(including sub-tank 1.5 L)
Starter Motor Cap. V-kW 24 - 4.5
Alternator Cap. V-A 24 - 20
Engine
Battery - 95D31R x 2
Length mm 2000
Width mm 950
Height mm 1430
Dry Weight kg 1431
Dimension
Installed Weight kg 1590
2 Specifications

6
Fuel Filter
Oil Filter
Roping Lug Radiator Engine Check Door
Battery
Alternator
check
door
2-2. Ambient Condition
Be sure to use the equipment under the following ambient condition range.
Otherwise the condition may cause damage, insufficient output or durability
shortage to the equipment.
■Ambient : Temperature: from -15 to 40 degree Celsius
■Relative : Humidity: less than 80%
■Altitude : 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)
Roping Lug
Lifting Lug
Operation Panel Door
Emergency Stop Button
Coolant Drain
Roping Lug
Oil Drain Plug
Engine Check Door
Fuel Inlet
A
ir Cleaner Check Door
Sub Tank
Output Terminal Cover
Fuel Tank
Fuel Drain
Water Separator
Oil Gage
Outer Fuel Inlet
Outer Fuel Outlet
Output Panel
Magnet Pump for auto Air
Oil Filler
Air Cleaner
Bonnet Grounding
terminal

7
4-2. Operation Panel
1 Main Circuit Breaker 12 Fuel Gauge
2 Volt Meter 13 Hour Meter
3 Ampere Meter 14 Emergency Stop Button
4 Frequency Meter 15 Preheat Lamp
5 Panel Light Switch 16 Starter Switch
6 Panel Light 17 Battery Isolator
7
Voltage Regulator 18 Pilot Lamp
8 Volt Meter Selector Switch 19 3-Phase Breaker(50A) GREEN
9 Ampere Meter Selector Switch 20 3-Phase Breaker(32A) RED
10 Monitor Lamp 21 3-Phase Breaker(20A) YELLOW
11 Water Temperature Meter 22 1-Phase Breaker(15A) BLUE

8
4-3. Output Panel
3-Phase ELCB 1-Phase ELCB
1-Phase
Receptacle
(15A)
3-Phase Receptacle
(50A)
3-Phase Receptacle
(20A)
3-Phase Receptacle
(32A)
Bonnet Grounding
Terminal

9
5-1. Monitor Lamp
The equipment is incorporated in monitoring function of WATER TEMP, BATTERY
CHARGING & OIL PRESSURE.
Under normal condition, when the starter switch changes from STOP to RUN, all the
lamps of BATTERY CHARGING and OIL PRESSURE turn ON. When the engine
starts, all the lamps turn OFF.
When abnormality is detected about WATER TEMP and OIL PRESSURE, the
corresponding monitor lamp will flash, and the engine is automatically shutdown.
When the automatic shutdown is engaged, turn the starter switch to STOP position
once, and then restart the engine. In the event the automatic shutdown happens after
that, check which lamp turns ON or OFF and point out where is the abnormality.
(1) Coolant / Water Temperature Monitor Lamp
Caution : Burns
Do not open the radiator cap while operating this equipment or
immediately after stopping the equipment, to avoid sustaining burns from
hot vapor.
Do not touch the engine and muffler during operation and immediately
after stopping the equipment, for the temperature can reach extremely
high.
When the water temperature rises over 105℃, the coolant/water temperature
monitor lamp will flash, and the automatic shutdown of engine will be engaged.
When this occurs, check the coolant/water reservoir tank, and replenish if needed.
(Refer to『8-2 Checking coolant/water』)
If the water level is normal, there may be a possibility of loose fan belt
or water leakage in coolant lines. Check it after the engine cools down.
<Caution>
Be sure to check the volume in the radiator sub-tank
before operation as it cannot detect the water temperature
When the water volume is insufficient.
Danger : Injuries
Close all doors and place during operating this equipment, to avoid
injuries
by unintentionally touching cooling fan and fan belt.
5 Equipment
WATER TEMP

10
(2) Oil Pressure Monitor Lamp (Low Oil Pressure)
Danger : Injuries
Close all doors and place during operating this equipment, to avoid
injuries by unintentionally touching cooling fan and fan belt.
Caution: Burns
Do not touch the engine and muffler during operation and
immediately after stopping the equipment, for the temperature can
reach extremely high.
Do not open the radiator cap while operating this equipment or
immediately after stopping the equipment, to avoid sustaining burns
from hot vapor.
When checking engine oil or changing oil, always stop the engine,
and wait until the engine cools down. If you open either the oil gauge
or the oil plug during operation, hot oil may cause some injury.
When the engine oil pressure drops below 0.98 x 100kPa {1kgf/cm2}
during operation, the oil pressure monitor lamp will flash, and the
automatic shutdown will be engaged.
When this occurs, check the engine oil level, and replenish to the
maximum level if needed.
<Caution>
The engine oil pressure monitor cannot detect the degradation of engine oil
itself. Please check the engine oil periodically, and change if needed.
(Refer to 『8-1. Checking engine oil』)
(3) Battery Charge Monitor Lamp (Charging Lamp)
When the battery turns unable to be charged during operation, the
battery charge monitor lamp will flash. In the event this occurs, stop
the engine consult with the authorized distributor or our
engineering section.
<Caution>
The battery charge monitor cannot detect the degradation of the battery
nor the battery fluid level. Check the battery fluid level periodically.
(Refer to『8-6. Checking Battery』)
OIL PRESS
CHARGE

11
5-2. Meters
(1) Hour Meter
Hour Meter keeps track of utilization time. Use this meter
to schedule your Periodical Maintenance. Note that the
Hour Meter will operate, as long as the start switch is at
ON position, regardless of whether the engine is running
or stopped.
(2) Water Temperature Gauge
Water Temperature Gauge displays the temperature of engine
coolant. Normal temperature may vary depending on the
environment, but it should be between 75℃and 100℃.
<Caution>
●If the temperature exceeds normal value, disconnect the load,
idle the engine at 1000min-1, and wait until the reading falls to
the normal temperature range.
(3) Fuel Gauge
It shows the volume in the fuel tank.
When filled up, it shows 『F』.
When the hand is approaching to『E』, the volume is coming to
empty. Replenish fuel enough promptly.
Meters in the engine

12
(1) Volt Meter
Voltage Meter displays the output voltage (Phase to Phase) from
the generator.
Please check and confirm it showing 415V at 50Hz during
operation.
(2) Ampere Meter
Ampere Meter displays the output current (Phase) from the
generator.
(3) Frequency Meter
Frequency meter will display the frequency of the generator.
Please check it showing 50Hz during operation.
(1) Preheat Lamp
When the starter switch is turned to <Preheat> position, the
preheat lamp will be turned ON. The preheat lamp will be turned
OFF after preheating completes showing the engine start
possible
<Caution>
Preheating time varies to coolant temperature, usually within 25 seconds.
(2) Pilot Lamp
The lamp indicates whether or not the equipment is generating
electricity when the engine is running.
Generator Gauges
Lamps

13
(3) Panel Light
Panel light turns ON to illuminate the panel, when turning the
switch (by the light) to ON.
(1) Starter Switch 1. Stop
When the switch is set to this
position, all power will be off.
The switch must be set to this
position to remove the key.
2. Run
The switch must be set to this position during operation.
<Caution>
Do not leave the switch to this position, while the engine is stopped. Otherwise
the battery is discharged.
3. Start
This position is to start the engine. When the key is released,
the setting will automatically return to <RUN> position.
4. Preheat
This position is used during cold season, to preheat Glow Plug.
(2) Emergency Stop Button
This button is used to stop the engine in emergency.
By inserting the button, the engine stops.
Be sure to restore the starter switch to STOP 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.
Switchs
STOP
RUN
START
PREHEAT

14
3P Breaker 1P Breaker
3P ELCB
<Caution>
Do not use ELCB as the ON/OFF switch to the load.
(4) 3-Phase Circuit Breaker
1-Phase Circuit Breaker
Each receptacle, 3-Phase and 1-Phase is
incorporated with circuit breaker respectively.
The breaker trips on overload or short-circuit on
to stop power transmission to load.
<Caution>
●Do not use this breaker as the ON/OFF switch to the load.
(5) 3-Phase Earth Leakage Circuit Breaker (3P ELCB)
1-Phase Earth Leakage Circuit Breaker (1P ELCB)
Each receptacle, 3-Phase and 1-Phase is
incorporated with ELCB respectively.
When current leak occurs, it trips to stop
power transmission to load.
<Caution>
● Do not use this breaker as the ON/OFF switch to the
load
(6) Volt Meter Selector Switch
By changing the switch, the voltmeter displays the voltage
between the lines.
(7) Ampere Meter Selector Switch
The phase current displays in the meter, by switching to each
phase (R, S and T) position.
1P ELCB

15
(8) Battery Isolator
When turning the switch to OFF, the engine
electric circuit does not activate due to no
battery power.
(1) Voltage Regulator
The dial adjusts generator output voltage.
By turning the dial clockwise, you can increases the voltage.
By turning the dial counter-clockwise, you can decrease the voltage.
Voltage Regulator
OFF position ON position

16
5-3. Fuel Line Changeover Valve (3-way valve)
By switching the 3-way valve, you can use fuel from external fuel tank.
In this case, the built-in tank fuel cannot be used.
(1) Using fuel from built-in fuel tank
The lever for 3-way valve is set to
Awhen the equipment is shipped.
Outer fuel inlet and return are
closed with plugs (PT1/2).
Use fuel as they are.
<Caution>
 After having used the outer fuel and removed piping, be sure to set the lever to A position
and fix the plugs.
(2) Using fuel 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 Bposition.
You can now supply the fuel from
the external gas tank.
For detailed instructions, refer to
『9-6.Connecting to External Fuel
Tank』
Caution : Fire
Always stop the engine when performing any work on the fuel line.

Always wipe any drip of Diesel fuel or engine oil. Do not use this equipment,
when a leak is found. Repair the equipment before use.
Be sure to confirm that there is no leakage in the piping.
3-way valve
External Fuel Inlet (PT1/2)
External Fuel Return (PT1/2)
A side Lever Position
B side Lever Position
3-way valve
External Fuel Inlet
External Fuel Return

17
Roping Lug
6-1. How to transport
Danger : Injuries
When lifting the equipment, always use a lift hook.
 Never use roping lug for lifting the unit, for it may cause equipment to drop.
(1) Lifting the equipment
Always use 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.
<Caution>
 Always use extreme care when loading, unloading, and transporting the equipment,
otherwise damages and malfunction of the equipment may bring.
6 Transportation and installation
Lifting Lug

18
6-2. Installation
Danger : Suffocation from exhaust gas
Exhaust fumes from the engine contains many
elements harmful to humans.
Do not operate this equipment in poorly ventilated area, such as inside a
room or in a tunnel
Caution : Suffocation from exhaust gas
Do not point the exhaust fume toward pedestrians or buildings.
Caution : Fire
Always operate this equipment on flat surface and, at least 1 meter away
from any objects (wall, box, etc.).

Temperature around muffler and exhaust can get extremely high. Keep any
inflammable items (such as fuel, gas, 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.
<Caution>
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 muffler exhaust. It may result in
reduced engine performance, overheating, or damage to the electrical parts.
Operating in dusty area or salty air (by the ocean), or any other particulate
environment may result in clogged radiator, which may cause overheating, other
malfunctions and insulation deterioration. Use extreme care, frequent checks
and maintenance.