Master Lock MGY5000 User Manual

PORTABLE DIESELGENERATOROWNER’S OPERATION AND INSTALLATION MANUALRIMPORTANTRead and understand this manual before operating or servicinggenerator. Imp

10GENERATORFEATURESContinuedGROUND FAULT CIRCUIT INTERRUPTER RECEPTACLEThis generator has a 120-volt ground fault circuit interrupter (GFCI) receptacl

11RECEPTACLE CIRCUIT BREAKERThe circuit breakers protect the receptacles and alternator. Overloading generatorwill trip circuit breaker. A short circu

12We ship the generator without oil in the engine crankcase. You must add oil beforestarting engine. See engine owner’s manual for specific oil type.C

13FUELWARNING ICON G 001 WARNINGDiesel fuel presents a hazard of fire. Diesel fuel isflammable.• Keep fuel out of children’s reach.• Refuel generator

14WARNING ICON G 001 CAUTIONIf you remove battery, insulate the red, positive (+)battery cable terminal. Insulate with electrical tape.Exposed termina

15BATTERYContinuedNutBatteryBatteryMountingBracketHookBoltRed, PositiveCable FromStarter SolenoidBlack, NegativeCable FromEngine BlockFigure 10 - Batt

16GENERATORGROUNDINGWARNING ICON G 001 CAUTIONYou must properly earth-ground generator beforestarting. This will help guard against deadly electricsho

17EXTENSIONCORDSOnly use grounded extension cords. Be sure to use extension cord with proper wiregauge size. See chart below.Ampere AWG for Length of

18DETERMININGELECTRICALLOAD FORGENERATORYou must decide what electrical load your generator can power. Do this beforeusing generator. Use the followin

19GENERAL INFORMATIONThis generator is not large enough to power your entire home. Do not connectgenerator to any existing electrical circuits. Plug i

2SECTION PAGESafety Information ... 3Product Identification ...

20OPERATIONContinuedPOWER CORD AND PLUG REQUIREMENTS120V, 30-amp twist-lock receptacle• NEMA L5-30P plug• Three-wire, 30-amp cord120/240V, 20-amp twis

21PRESTARTOperate generator on a firm, dry, and clean surface. The surface must be level.Protect generator from heavy dust, sand, dirt, rain, or snow.

22OPERATIONContinuedOSFuel ValveLeverFigure 15 - Fuel Valve Lever In “O” (open) PositionRUNSTOPEngineRun LeverFigure 16 - Engine Run Lever In RUN Posi

23OILOILIn cold weather, your engine may be hard to start. If so, remove the rubberplug on the rocker arm cover (see Figure 19). Add 2 cc of engine oi

24III. Firmly grasp starter grip with both hands. Remove slack from starter ropeby lightly pulling starter grip.IV. To start engine, pull starter rope

25RUNSTOPEngineStopLeverFigure 21 - Pushing Down Engine Stop LeverFigure 22 - Fuel Valve Lever In “S” PositionOSFuel ValveLeverDISCONNECTING ELECTRIC

26MAINTENANCEAND REPAIRSWARNING ICON G 001 WARNINGOnly a qualified electrical service person shouldservice and repair the alternator on this generator

27TROUBLE-SHOOTINGNote: See engine owner’s manual for engine troubleshooting.WARNING ICON G 001 WARNINGOnly a qualified electrical service person shou

28Figure 24 - Engine Wiring DiagramWIRINGDIAGRAMSFigure 23 - Alternator Wiring DiagramStarterMotor/SolenoidWhite RedBatteryRedBlack+-ChargeRegulatorWh

29TECHNICALSERVICEYou may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical Servi

3SAFETYINFORMATION!WARNING ICON G 001WARNINGSIMPORTANT: Read this owner’s manual and the engine owner’smanual carefully. Become familiar with this gen

30162101215161713141819202122924 233984751125ILLUSTRATEDPARTS LISTAlternator AssemblyKEY PARTNO. NUMBER DESCRIPTION QTY.099723-02 Alternator Assembly

31ILLUSTRATEDPARTS LISTFuel Tank and Roll CageKEY PARTNO. NUMBER DESCRIPTION QTY.1 099935-01 Fuel Tank Assembly 12 HC4-6C Screw, 1/4-20 x 3/4" 43

32ILLUSTRATEDPARTS LISTControl PanelRESETFULL POWERSELECTOR120/240 VOLTSRESETRESET1234576691011121213120ONLY 120240V120 VOLTS8RESETTEST14 KEY PARTNO.

33ILLUSTRATEDPARTS LISTSwitch Control BoxKEY PARTNO. NUMBER DESCRIPTION QTY.1 100131-01 Switch Control Box 12 22721000 Low Oil Light 13 099936-01 Key

34PARTSCENTRALSThese Parts Centrals are privately owned businesses. They have agreed to supportour customer’s needs by providing original replacement

35NOTES

36KEEP THIS WARRANTYWARRANTY INFORMATIONTWO-YEAR LIMITED WARRANTYPORTABLE GENERATORSDESA International warrants each alternator, generator, or electri

4SAFETYINFORMATIONContinued2.!WARNING Guard against fire hazard. Keep operation area well-vented.Keep generator at least three feet away from any obj

5SAFETYINFORMATIONContinued8.!WARNING Battery contains sulfuric acid. Battery acid is poisonous ifswallowed. Contact with skin or eyes may cause seve

6EFRUNSTOPEFRESETTESTRESET120 VOLTSFULL POWERSELECTOR120ONLY 120240V120/240 VOLTSRESETRESETPRODUCTIDENTIFICATIONFigure 1 - Portable GeneratorControlPa

7This portable generator is rugged and compact. It provides dependable, trouble-freeservice. The alternator is brushless with revolving fields. Yanmar

8WARNING ICON G 001 DANGERUse only in well-vented areas. Make sure area hasplenty of free-moving, fresh, outside air. Never rungenerator in an enclose

9CHARGEOFFOILBatteryDischargeLampOil AlertLampFigure 2 - Battery Discharge Lamp and Oil Alert Lamp LocationContinuedGENERATORFEATURESContinuedFULL POW