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MQP56 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (06/14/17) — PAGE 7

SAFETY INFORMATION

ENGINE SAFETY

  DANGER

 

„

The engine fuel exhaust gases contain poisonous carbon 

monoxide. This gas is colorless and odorless, and can 

cause death if inhaled.

 

„

The engine in this generator 

requires an adequate free 

fl ow of cooling air. 

NEVER 

operate this generator in 

any enclosed or narrow area 

where free fl ow of the air is 

restricted. If the air fl ow is 

restricted it will cause injury to people and property and 

serious damage to the generator or engine.

  WARNING

 

„

DO NOT 

place hands or fingers inside engine 

compartment when engine is running.

 

„

NEVER

 operate the engine with heat shields or 

guards removed.

 

„

Keep fi ngers, hands hair and clothing away 

from all moving parts to prevent injury.

 

„

DO NOT 

remove the radiator cap while the 

engine is hot. High pressure boiling water 

will gush out of the radiator and severely 

scald any persons in the general area of 

the generator.

 

„

DO NOT 

remove the coolant drain plug while the engine 

is hot. Hot coolant will gush out of the coolant tank and 

severely scald any persons in the general area of the 

generator.

 

„

DO NOT

 remove the engine oil drain plug while the 

engine is hot. Hot oil will gush out of the oil tank and 

severely scald any persons in the general area of the 

generator.

  CAUTION

 

„

NEVER

 touch the hot exhaust manifold, 

muffl er or cylinder. Allow these parts to cool 

before servicing generator.

NOTICE

 

„

NEVER

 run engine without an air fi lter or with a dirty air 

fi lter. Severe engine damage may occur. Service air fi lter 

frequently to prevent engine malfunction.

 

„

NEVER

 tamper with the factory settings 

of the engine or engine governor. Damage 

to the engine or generator can result if 

operating in speed ranges above the 

maximum allowable.

 

„

Wet stacking is a common problem with diesel engines 

which are operated for extended periods with light or 

no load applied. When a diesel engine operates without 

suffi cient load (less than 40% of the rated output), it will 

not operate at its optimum temperature. This will allow 

unburned fuel to accumulate in the exhaust system, 

which can foul the fuel injectors, engine valves and 

exhaust system, including turbochargers, and reduce 

the operating performance.

  In order for a diesel engine to operate at peak effi ciency, 

it must be able to provide fuel and air in the proper ratio 

and at a high enough engine temperature for the engine 

to completely burn all of the fuel.

  Wet stacking does not usually cause any permanent 

damage and can be alleviated if additional load is 

applied to relieve the condition. It can reduce the system 

performance and increase maintenance. Applying an 

increasing load over a period of time until the excess 

fuel is burned off and the system capacity is reached 

usually can repair the condition. This can take several 

hours to burn off the accumulated unburned fuel.

 

„

State Health Safety Codes and Public Resources 

Codes specify that in certain locations, spark arresters 

must be used on internal combustion engines that use 

hydrocarbon fuels. A spark arrester is a device designed 

to prevent accidental discharge of sparks or fl ames 

from the engine exhaust. Spark arresters are qualifi ed 

and rated by the United States Forest Service for this 

purpose. In order to comply with local laws regarding 

spark arresters, consult the engine distributor or the 

local Health and Safety Administrator.

Summary of Contents for MQP56

Page 1: ...ST ACCOMPANY THE EQUIPMENT AT ALL TIMES To find the latest revision of this publication visit our website at www mqpower com Revision 0 06 14 17 OPERATION MANUAL MODEL MQP56 60HZ GENERATOR ISUZU 4JJ1X...

Page 2: ...PAGE 2 MQP56 60 HZ GENERATOR OPERATION MANUAL REV 0 06 14 17 PROPOSITION 65 WARNING Diesel engine exhaust and some of...

Page 3: ...an investigation and if it finds that a safety defect exists in a group of vehicles it may order a recall and remedy campaign However NHTSA cannot become involved in individual problems between you yo...

Page 4: ...ntrol Panel 18 Engine Operating Panel 20 21 Output Terminal Panel Familiarization 22 24 Load Application 25 Generator Outputs 26 Generator Outputs Gauge Reading 27 Output Terminal Panel Connections 28...

Page 5: ...messages specifically address the level of exposure to the operator and are preceded by one of four words DANGER WARNING CAUTION or NOTICE SAFETY SYMBOLS DANGER Indicates a hazardous situation which i...

Page 6: ...ended by MQ Power for this generator Damage to the generator and or injury to user may result ALWAYS know the location of the nearest fire extinguisher ALWAYS know the location of the nearest first ai...

Page 7: ...ER tamper with the factory settings of the engine or engine governor Damage to the engine or generator can result if operating in speed ranges above the maximum allowable Wet stacking is a common prob...

Page 8: ...eakers OFF before performing maintenance on the generator or making contact with output terminals NEVER insert any objects into the output receptacles during operation This is extremely dangerous The...

Page 9: ...he battery to open flames sparks cigarettes etc The battery contains combustible gases and liquids If these gases and liquids come into contact with a flame or spark an explosion could occur WARNING A...

Page 10: ...nd all other metal parts be sent to a recycling center Metal recycling involves the collection of metal from discarded products and its transformation into raw materials to use in manufacturing a new...

Page 11: ...uency 60 Hz Speed 1800 rpm Aux AC Power Single Phase 60 Hz Aux Voltage Output 4 8 Kw 2 4 kW x 2 Dry Weight 2 701 lbs 1 225 kg Wet Weight 3 035 lbs 1 376 kg Table 2 Engine Specifications Model ISUZU 4J...

Page 12: ...4 17 DIMENSIONS TOP VIEW SIDE VIEW FRONT VIEW F H G E D A B C Figure 1 Dimensions Table 3 Dimensions Reference Letter Dimension in mm Reference Letter Dimension in mm A 30 3 770 F 94 5 2400 B 30 5 775...

Page 13: ...MQP56 60 HZ GENERATOR OPERATION MANUAL REV 0 06 14 17 PAGE 13 NOTES...

Page 14: ...14 17 INSTALLATION Figure 2 Typical Generator Grounding Application GENERATOR GROUND LUG GROUND CABLE REFERENCE NEC 250 8 FT 2 4 M MINIMUM IF THE GENERATOR IS PROVIDING ELECTRIC POWER TO A BUILDING VI...

Page 15: ...ey are to resist damage to the bottom of the generator and to maintain alignment CAUTION Pay close attention to ventilation when operating the generator inside tunnels and caves The engine exhaust con...

Page 16: ...e parallel connections of A to B A to D and C to D These three phases of the voltage input to the voltage regulator are then rectified and are the excitation current for the exciter section When a hea...

Page 17: ...VERSPEED ENGINE RUNNING MOOOOO 20001Q 1 2 3 4 5 7 8 9 6 Figure 3 Major Components Table 4 Generator Major Components ITEM NO DESCRIPTION 1 Voltage Selector Switch Assembly 2 Output Terminal Panel Asse...

Page 18: ...tmeter to indicate phase to phase voltage between any two phases of the output terminals or to be switched off 5 ACVoltmeter Indicates the output voltage present at the U V and W Output Terminal Lugs...

Page 19: ...MQP56 60 HZ GENERATOR OPERATION MANUAL REV 0 06 14 17 PAGE 19 NOTES...

Page 20: ...7 ENGINE OPERATING PANEL Figure 5 Engine Operating Panel OFF W U V OFF W U V W U V DECREASE INCREASE 1000 2000 3000 0 R P M AUTO MANUAL OFF RESET LOW OIL PRESSURE HIGH COOLANT TEMPERATURE OVERCRANK OV...

Page 21: ...k the engine for 10 seconds before disengaging If the engine does not engage start by the third attempt the engine will be shutdown by the engine controller s Over Crank Protection mode If the engine...

Page 22: ...l Figure 6 is provided with the following Three 240 120V output receptacles 50 amp Three Circuit Breakers 50 amps Two 120V GFCI receptacles 20 amp Two Duplex Circuit Breakers 20 amps Five Output Termi...

Page 23: ...tput terminal panel These receptacles can only be accessed when the voltage selector switch is placed in the single phase 240 120 position Figure 8 240 120V Twist Lock Auxiliary Receptacles CS 6369 TW...

Page 24: ...nals from overload a 3 pole 175A main circuit breaker is provided Make sure to switch ALL circuit breakers to the OFF position prior to starting the engine Figure 11 Connecting Loads Over Current Rela...

Page 25: ...r By Load Type of Load Power Factor Single phase induction motors 0 4 0 75 Electric heaters incandescent lamps 1 0 Fluorescent lamps mercury lamps 0 4 0 9 Electronic devices communication equipment 1...

Page 26: ...Available Three Phase Switchable 208V 220V 240V 416V 440V 480V Single Phase Switchable 120V 127V 139V 240V 254V 277V Generator Amperage Table 8 shows the maximum amps the generator can provide DO NOT...

Page 27: ...oltage Selector Switch 240 139V 3 Position AC Voltmeter Gauge Reading Place the ACVoltmeter Change Over Switch Figure 15 in theW U position and observe the phase to phase voltage reading between the W...

Page 28: ...Switch 3 240 139V Position 2 Connect the load wires to the UVWO terminals as shown in Figure 20 Figure 20 UVWO Terminal Lugs 3 240 139V Connections 3 Turn the voltage regulator knob Figure 21 clockwis...

Page 29: ...ator adjustment knob whenever fine tuning of the output voltage is required 1 240 120V UVWOTerminal Output Voltages 1 Place the voltage selector switch in the 1 240 120 position as shown in Figure 26...

Page 30: ...the ISUZU Engine Owner s Manual Oil should be warm before draining Other types of motor oils may be substituted if they meet the following requirements API Service Classification CC SC API Service Cla...

Page 31: ...nd before refueling to prevent spilling and maximize the amount of fuel that can be pumped into the tank Level Ground Unlevel Ground Level Ground Unlevel Ground DO NOT fill on unlevel ground NOTICE ON...

Page 32: ...3 09 gal 11 7 liters Reserve Tank 2 quarts 1 9 liters Table 13 Anti Freeze OperatingTemperatures Vol Anti Freeze Freezing Point Boiling Point C F C F 50 37 34 108 226 NOTICE When the antifreeze is mi...

Page 33: ...negative terminal LAST POSITIVE NEGATIVE When connecting battery do the following 1 NEVER connect the battery cables to the battery terminals when the ECU Control Switch is in either the MANUAL positi...

Page 34: ...adequate ventilationwhen operating Direct exhaust away from nearby personnel WARNING NEVERmanuallystarttheenginewiththemain duplex or auxiliary circuit breakers in the ON closed position MAIN CIRCUIT...

Page 35: ...will display the generator s output in VOLTS Figure 45 Voltmeter Meter 60 Hz 120 8 If the voltage is not within the specified tolerance use the voltage adjustment control knob Figure 46 to increase or...

Page 36: ...ring operation EMERGENCY SHUTDOWN PROCEDURE 1 Place the ECU Control Switch Figure 55 in the OFF RESET position MAIN CIRCUIT BREAKER DUPLEX CIRCUIT BREAKERS CS 6369 AUX CIRCUIT BREAKERS OFF OFF OFF OFF...

Page 37: ...MQP56 60 HZ GENERATOR OPERATION MANUAL REV 0 06 14 17 PAGE 37 NOTES...

Page 38: ...s Required X Pressure Test Cooling System X Check Engine Speed X Test Thermostats X Check and Adjust EngineValve Clearance X Test Glow Plugs X Flush and Refill Cooling System 2yrs or2000hrs Clean Insi...

Page 39: ...ESET 25 INCHES H O 2 6 23 kPa NOTICE If the engine is operating in very dusty or dry grass conditions a clogged air cleaner will result This can lead to a loss of power excessive carbon buildup in the...

Page 40: ...at the bottom of the cup it should be drained off immediately DRAIN PLUG OPEN DRAIN CLOSE A B C FUEL FILTER FILTER BODY AIR BLEEDER PLUG MAINTENANCE 3 Let the residue or foreign substances inside the...

Page 41: ...removed always make sure to replace both gaskets and clean the magnet portion inside the cover 8 Check for fuel leaks Removing Water from the FuelTank After prolonged use water and other impurities a...

Page 42: ...g If the drive belt exhibits any of the above wear conditions replace the drive belt immediately Figure 62 Drive Belt Inspection ENGINE OIL CHECK DAILY 1 When checking or adding oil place the machine...

Page 43: ...TH THIN LAYER OF OIL OIL FILTER WRENCH OIL with the filter head surface Tighten it another 3 4 turn using the filter wrench 5 Fill engine crankcase with high quality detergent oil classified For Servi...

Page 44: ...battery charger both require 120 VAC in order to operate A receptacle Figure 68 has been provided on the output terminal panel to allow commercial power to be applied These units will ONLY function w...

Page 45: ...starting capability always have power applied to the generator s internal battery charger MAINTENANCE Figure 68 Battery Charger and Jacket Water Heater Option BATTERY CHARGER JACKET WATER HEATER 120...

Page 46: ...V1 V1 1 2 3 4 CN7 1 2 41 98 CN8 CN11 Ar Fg ExAr ExFg AVR VR Re AS VS CB1 SW RY1 2 OC CT 1 2 3 SYMBOL DESIGNATION F A V MAIN GENERATOR ARMATURE WINDING MAIN GENERATOR FIELD WINDING EXCITER ARMATURE WIN...

Page 47: ...OPERATION MANUAL REV 0 06 14 17 PAGE 47 ENGINE WIRING DIAGRAM B L G V P R W Y O BR GR LB LG WIRE COLOR BLACK BLUE BROWN GREEN GRAY VIOLET PINK ORANGE LIGHT GREEN LIGHT BLUE YELLOW WHITE RED SYM SYM W...

Page 48: ...ng connection loose Check wiring and repair Is AVR defective Replace if necessary Defective Rotating Rectifier Check and replace Defective Exciter Field Check for approximately 17 3 ohms across J K on...

Page 49: ...when the ECU Control Switch is placed in the MANUAL position 2 If engine trouble occurs the diagnostic lamp will be brightly lit as long as the control switch is left in the manual position 3 The diag...

Page 50: ...NEMA 5 15 15A 120 VAC P N HBL5278C HUBBLE RECEPTACLE NOTES 1 2 RECEPTACLE IS MOUNTED ON OUTPUT TERMINAL PANEL ASSY 20 AMP 5 20R RECEPTACLE P N HBL5369C HUBBLE RECEPTACLE 3 4 CORD CAROL 3 C 14 AWG P N...

Page 51: ...N GREEN 14 AWG GROUND G NOTES 1 2 RECEPTACLE IS MOUNTED ON OUTPUT TERMINAL PANEL ASSY 20 AMP 5 20R RECEPTACLE P N EE6131 HBL5369C HUBBLE RECEPTACLE 3 GROUND 120 VAC 4 CORD CAROL 3 C 14 AWG P N EE56557...

Page 52: ...may not be considered as binding Multiquip Inc reserves the right to discontinue or change specifications design or the information published in this publication at any time without notice and withou...

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