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Safety Guidelines 

Specifications 

2.1  Specification Matrix 
2.2  Ambient Condition 

Use 

Parts 

4.1  External View 
4.2  Control Panel 

Equipment 

5.1  Monitor Display 
5.2  Gauges 
5.3  Fuel Line Changeover Valve 

Transportation and installation 

6.1  Transportation 
6.2  Installation 

Connection 

7.1  Selecting Cable 
7.2  Connecting Cable 
7.3  Earth Leakage Relay and Grounding 

Initialization and Pre-check 

8.1  Checking Engine Oil 
8.2  Checking Coolant/Water 
8.3  Checking Fan Belt 
8.4  Checking Fuel 
8.5  Checking Fuel, Engine oil, 

 and water leakage 

8.6  Checking Battery 

Operation 

9.1  Initializing / Preparation 
9.2  During Operation 
9.3  Stopping Generator 
9.4  Protection Features 
9.5  Connecting to External Fuel Tank 

10  Maintenance 
11  Long-term Storage 
12  Troubleshooting 
13  Generator Wiring Diagram 
14  Engine Wiring Diagram 

 

Sound Proof  
Diesel Engine Generator 

 

 

 

 

 

OWNER’S

 

AND 

OPERATOR’S

 

MANUAL 

 

 

DG150MI 
DG250MI 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION : Do not operate the Generator, or any other appliance, 

           

     

   before you have read and understood the instructions for use.

 

Table of Contents 

 

Page 

 

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Summary of Contents for DG150MI

Page 1: ...4 Checking Fuel 8 5 Checking Fuel Engine oil and water leakage 8 6 Checking Battery 9 Operation 9 1 Initializing Preparation 9 2 During Operation 9 3 Stopping Generator 9 4 Protection Features 9 5 Co...

Page 2: ...ughly 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 con...

Page 3: ...es through the body Even though all the earth terminals of the loads have been grounded to the earth the earth grounding terminal and the outer bonnet canopy grounding terminal should be grounded to t...

Page 4: ...ys wait until the equipment cools down before placing any covering materials for storage Caution Burns Do not open the radiator cap while operating this equipment or immediately after stopping the equ...

Page 5: ...lines Part Number 19402 00188 2 Suffocation from exhaust fume Part Number 19402 00161 3 Electrical Shock Part Number 19402 00163 4 Injuries Part Number 19402 00167 5 Injuries Part Number 19402 00162 6...

Page 6: ...ZU No of Cylinders bore x stroke mm 3 83 1 x 92 4 85 x 96 kW 12 6 14 9 19 1 23 5 Continuous rated output PS 17 1 20 3 26 32 Rated speed min 1 1500 1800 Displacement L 1 496 2 179 Combustion system Swi...

Page 7: ...ble insufficient output power or deterioration of durability Ambient Temperature 15 C 40 C Humidity less than 80 Altitude less than 300m 3 Use Power source for construction use equipment such as subme...

Page 8: ...r Temperature Gauge 3 Single Phase Circuit Breaker 13 Tachometer Hour Meter incorporated 4 Earth Leakage Relay 14 Oil Pressure Gauge 5 Voltage Meter 15 Preheat Lamp 6 Amp Meter 16 Emergency Stop Butto...

Page 9: ...ither in water temperature or in oil pressure the corresponding monitor lamp will flash and the automatic shutoff shall be engaged When the automatic shutoff is engaged turn the starter switch to STOP...

Page 10: ...cks 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 stop...

Page 11: ...ally 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 When...

Page 12: ...uel level reaches less than 1 4 tank Fluid Level Monitoring Lamp will flash If the lamp is flashing add fuel Caution Just after the engine started lamp will not flash promptly even in the event of 1 4...

Page 13: ...100kPa 3 4kgf cm 2 However under cold weather the pressure gauge may display higher reading Continue idling until the pressure falls to normal range 5 2 5 Generator Gauges 5 2 5 1 Voltage Meter Volta...

Page 14: ...Panel Light Switch This switch turns Panel Light to ON and OFF The switch can only be used when the Start switch is in OPERATING position 5 2 7 3 Emergency Stop button DG250MI only This button is used...

Page 15: ...he way out or pushing all the way in while the release button on the knob pressed Caution Always lock the handle while the generator is operating Failure to do so may result in fluctuation in frequenc...

Page 16: ...are removed 5 3 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 B pos...

Page 17: ...ide a room or in a tunnel Caution Suffocation from exhaust fume Do not point the exhaust fume toward pedestrians or building Caution Fire Always operate this equipment on flat surface and at least 1 m...

Page 18: ...rator and the machinery to be connected Caution Electrical damages If the load exceeds the allowable amperage the overheating may damage the cable If the cable is either too long or too small a gauge...

Page 19: ...er Electrical Shock Before connecting or disconnecting a load cable from output terminals always turn a circuit breaker to OFF position stop the engine and remove the engine key A person performing th...

Page 20: ...ase For 3 Phase Load Terminal Voltage 200V 220V or 400V 440V at 50Hz 60Hz Load For 1 Phase Load 1 Terminal Voltage 115V 127V or 230V 254V at 50Hz 60Hz Load Load Load For 1 Phase Load 2 Terminal Voltag...

Page 21: ...than less than less than less than less than less than 1 5kVA 1 5kVA 1 5kVA 3 0kVA 1 5kVA 1 5kVA less than 1 5kVA 7 2 2 2 400 440V The terminal Voltage 100V 110V at 50Hz 60Hz only In the case of no u...

Page 22: ...ication of the earth leakage relay Rated Sensitive Current 30mA or below Grounding resistance 500 or below Sensitive time Within 0 1second Caution Different sensitivity relay is available to change Bu...

Page 23: ...the reset button The earth leakage indicating lamp red turns OFF subsequently Turn Push down the 3 Phase circuit breaker lever to OFF position In the event you cannot complete every step of the above...

Page 24: ...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 8 1 Checking Engine Oil Please refer to the user s manual for...

Page 25: ...s 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 Lubrication Oil including the oil in fil...

Page 26: ...tion With respect to DG150MI check and add water after unscrewing the bolt holding the radiator cap 8 2 2 Checking Coolant reservoir tank Adding coolant Check to see if the coolant level is between MI...

Page 27: ...lace locks 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 aft...

Page 28: ...can get the properly blended fuel Note that diesel fuel may foam during a fill up This can cause the automatic pump nozzle to shut off even though your tank is not full Notice Do not use home heating...

Page 29: ...near or lower than the MIN level add distilled water until the fluid level reaches the MAX limit Make sure that the battery cables are firmly secured to the posts Tighten the clamps if necessary Caut...

Page 30: ...e 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 the circuit breaker for single phase and 3 phase...

Page 31: ...al Shock Injuries Before turning the circuit breaker to ON position 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 gene...

Page 32: ...the air is completely extracted from fuel line by pushing the speed control knob all the way out and start the engine In the case air is in the fuel line the engine speed is unstable and proceed with...

Page 33: ...level 7 Current leaks to the earth When current leaks to the earth Only 3 Phase 8 Overload When the circuit overloads indicates the feature incorporated with DG250MI indicates the automatic feature in...

Page 34: ...he lever position is not set properly the fuel may leak from either the built in fuel tank or an external fuel tank 10 Maintenance Danger Electrical Shock Injuries Before performing any equipment chec...

Page 35: ...ge 1 st time at 50 hr mark Oil Filter change 1st time at 50 hr mark Coolant level check add coolant Exhaust color check Coolant change or 2 yr Drain water from fuel filter or replace Clean Replace Dra...

Page 36: ...il Filter Change First time 50 hour mark From second time Every 400 hours Drain the engine oil fully as described in 10 1 Loosen and remove the oil filter using an oil filter wrench Smear a little eng...

Page 37: ...71683060 If the element has dried contaminants it may be cleaned by blowing compressed air from the inside If the element has carbon or grease it should be replaced with new element DG250MI DG150MI 10...

Page 38: ...0 5 Draining Water from Fuel Tank Drain water Every 200 hours Unscrew the Fuel drain plug and turn the drain lever on the tank to OPEN Reinstall the drain plug after draining water fully and restore t...

Page 39: ...ny inflammable items such as fuel gas paint etc away from the equipment When checking engine always stop the engine and keep away from fire Wait until the engine cools down before performing any check...

Page 40: ...ays use a lift hook Always place ties sleepers on the marked points in the lower generator firstly and then stack the upper generator on it All the ties should be the same size dimension and longer th...

Page 41: ...nt fuel 3 Water contaminants in fuel 1 Fuel lever to OPEN 1 Replenish fuel 2 Drain water or clean fuel tank fuel filter and water sedimenter Engine starts but stalls immediately 1 Insufficient oil 2 I...

Page 42: ...42 13 Generator Wiring Diagram...

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Page 46: ...46 14 Engine Wiring Diagram...

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