Page 1: Table Of Contents
4. Parts SOUND-PROOF 4-1. Outer and Main Components DIESEL ENGINE GENERATOR 4-2. Operation Panel 4-3. Output Panel 5. Equipment DGA50C 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.
Page 3: Safety Guidelines
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.
Page 4 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.
Page 5: X750801-250
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.
Page 6 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.
Page 7: Specifications
2 Specifications 2-1. Data Unit DGA50C Generating Method Rotating Filed, Brushless 3-Phase Synchronous Generator Rated Output Rated Voltage Rated Current 69.6 Rated Frequency Rated Speed 1500 Phase & Wiring 3-Phase 3-Wire Power Factor Insulation Class Alternator: F Exciter: B Exciting Method...
Page 8: Ambient Condition
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% ■...
Page 9: Operation Panel
4-2. Operation Panel Main Circuit Breaker Fuel Gauge Volt Meter Hour Meter Ampere Meter Emergency Stop Button Frequency Meter Preheat Lamp Panel Light Switch Starter Switch Panel Light Battery Isolator Voltage Regulator Pilot Lamp Volt Meter Selector Switch 3-Phase Breaker(50A) GREEN Ampere Meter Selector Switch 3-Phase Breaker(32A) RED Monitor Lamp...
Page 10: Output Panel
4-3. Output Panel 3-Phase ELCB 1-Phase ELCB 1-Phase Receptacle (15A) Bonnet Grounding 3-Phase Receptacle Terminal (20A) 3-Phase Receptacle 3-Phase Receptacle (50A) (32A)
Page 11: Equipment
5 Equipment 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.
Page 12 (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.
Page 13: Meters
5-2. Meters Meters in the engine (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.
Page 14 Generator Gauges (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.
Page 15 (3) Panel Light Panel light turns ON to illuminate the panel, when turning the switch (by the light) to ON. Switchs (1) Starter Switch 1. Stop STOP When the switch is set to this PREHEAT position, all power will be off. The switch must be set to this START position to remove the key.
Page 16 <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. 3P Breaker 1P Breaker <Caution>...
Page 17 (8) Battery Isolator When turning the switch to OFF, the engine electric circuit does not activate due to no battery power. ON position OFF position Voltage Regulator (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.
Page 18: Fuel Line Changeover Valve
5-3. Fuel Line Changeover Valve (3-way valve) 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.
Page 19: Transportation & Installation
6 Transportation and installation 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.
Page 20: Installation
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.
Page 21: Connecting Load
7 Connecting Load 7-1. Select Load Cable Select the cable with proper gauge, based on its allowable amperage and the distance between the generator and the machinery to be connected. Caution : Damage to properties If the load exceeds the allowable amperage, the damage to the cable may be damaged in overheating.
Page 22: Connecting Load Cable
7-2. Connecting Load Cable Danger : Electric Shock Before connecting or disconnecting a load cable from output receptacles, always turn a circuit breaker to OFF position, stop the engine, and remove the engine key. The person performing the maintenance should always keep the key.
Page 23: Elcb And Grounding
7-3. Earth Leakage Circuit Breaker (ELCB) and Grounding Danger : Electric Shock 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.
Page 24 (2) Operation Check Danger : Electric Shock / Injuries Before turning ELCB to ON position, ensure that the breakers or the switches of loads are positioned to OFF. You should communicate well with the electrician by the load side when operating ELCB. Before operating the generator, check always if the device can work.
Page 25 (3) ELCB has activated. When the ELCB has activated, repair the leakage point and restore it by the following procedure. (Overload happens when the breaker activates but the Earth leakage breaker does not activate.) Turn the 3-Phase ELCB to ON to restore. Turn the 1-Phase ELCB to RESET to restore.
Page 26: Initialization And Pre-Check
8 Initialization and Pre-check Danger : Electric Shock / Injuries Before performing any equipment check or maintenance, stop the engine, and remove the engine key. The person performing the maintenance should always keep the key. Caution : Fire / Burns When checking engine, always stop the engine, and keep away from fire.
Page 27: Coolant / Water
Viscosity and temperature SAE20/20W SAE40 SAE10W SAE30 SAE10W-30 SAE15W-40/20W-40 (3) Replacing Engine Oil Volume (Unit: Liter) Lubrication Oil (including the oil in filter) 13.2 (1.1) Value in ( ) shows the oil in filter 8-2. Checking Coolant / Water ※ Refer to the User’s Manual for Engine also. Danger : Injuries Before performing any equipment check or maintenance, stop the engine, and remove the engine key.
Page 28 (2) Checking coolant in Sub Tank / Adding coolant Check to see if the water/coolant level is between FULL and LOW line in the Sub Tank. Fill up to the FULL line, if the water/coolant level is low. <Caution> Use soft water, such as tap water. If the outside temperature is near freezing, use Long Life Coolant (LLC)(30% mixture LLC is used, when shipped from factory).
Page 29: Fan Belt
8-3. Checking Fan Belt ※ Refer to the user’s manual for Engine separately also. Danger : Injuries Before performing any equipment check or maintenance, stop the engine, and remove the engine key. The person performing the maintenance should always keep the key. Close and lock all doors during operating this equipment, to avoid injuries by unintentionally touching cooling fan and fan belt.
Page 30: Fuel, Oil And Coolant Leakage
This blended fuel is usually called also No.2-D. It can be used in colder temperature than N0.2-D fuel, which has not been winterized. Check with service station operator to be sure you can get the proper blend fuel. Fuel requirements: NOTICE: The fuel injection pump, injector or other parts of the fuel system and engine can be damaged if you use any fuel or fuel additive other than those specifically recommended by Isuzu.
Page 31 ■ Replacing the Battery +Post -Post -Post +Post <Caution> ● Dual batteries has been connected in a series. Always follow the below instruction when replacing the Battery or Remove the Battery cables to avoid Battery short circuit. (1) Replacing the Right ( R ) side Battery Disconnect the negative (-) terminal from the Right Battery always.
Page 32: Operation
9 Operation 9-1. Initialization and Preparation 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.
Page 33 Ensure that the tachometer shows the following frequency at no load. No Load Frequency (Revolving Speed) 50Hz RUN 52.5Hz (about) (1575min <Caution> By setting frequency to the above frequency under no load, 50Hz(almost) will be obtained at the rated output load. Adjusting the Voltage Regulate Dial, set it to the required voltage.
Page 34: During Operation
9-2. During Operation (1) Post startup check Make sure that all meters (gauges) and displays are working properly. (Refer to 5. Equipment) Check for any unusual vibration or noise. Check for any unusual color from the exhaust. Under normal condition, the exhaust gas has no color or light bluish color.
Page 35: Stopping
9-3. Stopping Turn the switch on the equipment and the circuit breaker on the load to OFF. Turn every circuit breaker to OFF position. Keep the engine NORMAL SPEED on NO LOAD for about 3 minutes. Turn the Starter Switch to STOP. Turn the Battery Isolator to OFF.
Page 36: Connect To External Fuel Tank
9-5. Connecting to External Fuel Tank Caution Always stop the engine, when working on the fuel line. Always wipe any drip of Diesel fuel or oil. Do not use this equipment when a leak is found. Repair the equipment before use. Ensure that there is no fuel leakage on the fuel line after the fuel line working finished.
Page 37: Check And Maintenance
Just after having connected to External Fuel Tank, there may be a case that engine speed is unstable and engine stops due to insufficient air extraction. Therefore, be sure to confirm that the air is extracted completely and the engine speeds keeps stable before leaving the equipment under people-less operation.
Page 38 Startup Every Every Every Every Description 1000hrs check 200hrs 400hrs 500hrs Engine Side ◯ Clean each parts / tightening ◯ Engine oil checks / add oil ◯ ◯ Engine oil change (1 time at 50 hr mark) ◯ ◯ Oil Filter change time at 50 hr mark) ◯...
Page 39 (1) Change engine oil Initial 50 hours and after Every 200 hours Remove the Oil Filler Cap. Oil Filler Oil Gauge Remove the Oil Drain Plug and then turn The Oil Drain Lever to OPEN and drain engine oil. Turn the Oil Drain Lever to CLOSE and tighten the Oil Drain Plug.
Page 40 <Caution> If an oil filter wrench is not at hand, contact our authorized distributor or our engineering section to replace. Oil Filter Part No. Isuzu Part No. 8943212190 (3) Cleaning / Changing Air Filter Element Air Cleaner Clean Every 200 hours Change Every 500 hours Loosen the Air Cleaner Fixing Bolt and...
Page 41 (4) Drain water in the Water Sedimentor Check Startup Clean Every 200 hours When a float (red) in the cup is floating at drain level, drain water. Float Loosen the Cock. After draining finishes, tighten the Cock Water Drain Level Cock.
Page 42 (7) Clean Gauze Filter in Water Separator Clean Every 500 hours Air Extraction Plug Ring Nut Loosen the Cock and then loosen the air extraction plug. Gauze Filter Float Turn the ring nut counter-clockwise Cock to remove the cup and the Gauze Filter Water Drain Level after the fuel inside does not come out from the lever.
Page 43 Change both Gauze Filter and eyebolt GAUZE FILTER when Gauze Filter is damaged. Extract the air in fuel line after Gauze Filter washing finishes. (Refer to 『9-2.During Operation』.) EYEBOLTS Ensure that there is no fuel leakage after reinstallation. Eyebolt Part No. (Gauze Filter included) Isuzu Part No.
Page 44 (11) Change Coolant Change 2 years or 1000 hours Radiator Plate Remove the Radiator Plate. Water Inlet Remove the Radiator Cap. Radiator Cap Loosen the Radiator Drain Cock and the Drain Plug on the engine side. After draining finishes, tighten the Radiator Drain Cock and the Drain Plug on the engine side.
Page 45: Long Term Storage
11 Long-term storage Danger : Electric Shock/Injuries Before performing any equipment check or maintenance, stop the engine, and remove the engine key. The person performing the maintenance should always keep the key. Caution : Fire/Injuries Temperature around muffler and exhaust can get extremely high levels. Keep any inflammable items (such as fuel, gas, paint, etc.) away from the equipment.
Page 46: Troubleshooting
(2) Stacking Danger : Injuries If you have to stack two generators at warehouse, always proceed with the following steps. Ensure that there is no dent on bonnet, loose bolt or no bolt in the equipment. Always place the equipment horizontal on a flat and stable surface to be endurable for the total weight, and to keep the equipment from sliding.
Page 47 Symptom Presumable Cause Action Starter motor does not Battery Isolator is OFF Turn Battery Isolator to ON drive or speed is low. Battery output is weak Check / battery liquid/ or Battery is deteriorated Charge Battery terminal is OFF or loose Change battery Battery terminal is corroded Fix / Tighten terminal...
Page 48 Black smoke comes out from 1. Air filter element is clogged Check / Change air filter Muffler element 2. Fuel injection nozzle is Ask our distributor to repair defective Change to clean fuel 3. Improper fuel is used White smoke comes out from 1.
Page 49: Generator Circuit Diagram
13 Generator Circuit Diagram...
Page 50: Engine Circuit Diagram
14 Engine Circuit Diagram...

Shindaiwa dga50c Owner's And Operator's Manual

1 Safety Guidelines

2 Specifications

3 Use

4 Parts

5 Equipment

6 Transportation & Installation

7 Connecting Load

8 Initialization and Pre-Check

9 Operation

10 Check and Maintenance

11 Long Term Storage

12 Troubleshooting

13 Generator Circuit Diagram

14 Engine Circuit Diagram

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