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120 VOLTS
RET S E E S TT
ENM
00000005
120 VOLTS FULL POWER SELECTOR 120/240 VOLTS
RESET
120 120
ONLY 240V
RESET RESET
TEST
ENM
00000005
HOURS 1/10
240 VOLTS
Auto-Idle RESET
ON OFF
RESET
HOURS 1/10
R
PORTABLE GASOLINE
GENERATORS
OWNER’S OPERATION AND INSTALLATION MANUAL
Generator Models: HWI3000, MGH3000, MGH4000D, MGH4000DI, MGH5000D, MGH5000DI,
MGH5000DIE, MGH6000D, MGH6000DI, MGH7000D, MGH7000DI, and MGH10000A
IMPORTANT: Read and understand this manual before operating or servicing
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R PORTABLE GASOLINE GENERATORS 1. Gasoline presents a hazard of fire or ex- • Do not use any worn or damaged SAFETY plosion. Gasoline is flammable. Its va- electric cords. Electric shock or dam- INFORMATION por is explosive. age to generator may result. • Keep fuel out of children’s reach. • Do not wear damp clothing or wet • Refuel generator in a well-vented shoes when using generator. WARNINGS area. Do not fill fuel tank in the dark. 4. Guard against burns. Hot engine parts IMPORTANT: Read th
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FULL POWER 120 VOLTS 120/240 VOLTS RESET 120 120 ONLY 240V RESET RESET TEST ENM 00000005 HOURS 1/10 OWNER’S MANUAL SAFETY PRODUCT INFORMATION IDENTIFICATION Continued 9. Only a qualified electrical service per- son should service and repair generator. • Generator produces high voltage. Use extreme caution when working Gas Cap/Fuel Gauge on electrical parts. Control • Always remove spark plug wire from Panel spark plug before servicing. This will prevent accidental starting. • When working
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R PORTABLE GASOLINE GENERATORS HIGH AND LOW GENERAL VENTILATION TEMPERATURE INFORMATION DANGER: Use only in well- vented areas. Make sure area has OPERATION Master portable generators are rugged and plenty of free-moving, fresh, out- compact. These models provide depend- side air. Never run generator in Air temperature affects generator output. able, trouble-free service. The alternators an enclosed or confined area. Output drops 1% for each 10° temperature are brushless with revolving fields.
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OWNER’S MANUAL SPECIFICATIONS MGH5000D MGH4000D MGH5000DI MGH6000D MGH7000D MODEL HWI3000 MGH3000 MGH4000DI MGH5000DIE MGH6000DI MGH7000DI MGH10000A Electrical Rated Wattage 2500 2500 4000 5000 6000 7000 10,000 Rated Amperage 120 V 20.8 20.8 33.3 41.7 50 57 83.3 240 V –– –– 16.7 20.8 25 28.3 41.7 Receptacle 120-V Duplex –– –– Yes Yes Yes Yes Yes 120-V, 20-A Duplex Yes –– –– –– –– –– –– 120-V, 15-A GFCI No Yes Yes Yes Yes Yes Yes 120-V Twist-Lock No No 30 Amp 30 Amp 30 Amp 30 Amp 30 Amp 120/240-V
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RESET TEST R PORTABLE GASOLINE GENERATORS 120 VOLT ONLY: This position sends full GROUND FAULT CIRCUIT GENERATOR power to the 120V receptacles only. 240V INTERRUPTER RECEPTACLE power is not available. Use this position FEATURES All models (Except HWI3000) have a 120- when powering 120V items only. volt ground fault circuit interrupter (GFCI) OIL ALERT SYSTEM 120/240 VOLT: This position sends full receptacle. The GFCI receptacle is on the The oil alert system protects the engine from power to the
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OWNER’S MANUAL GENERATOR ENGINE OIL FUEL FEATURES We ship the generator without oil in the WARNING: Gasoline presents engine crankcase. You must add oil before Continued a hazard of fire or explosion. starting engine. See engine owner’s manual Gasoline is flammable. Its vapor for specific oil type. ENGINE CIRCUIT BREAKER is explosive. (Models MGH5000DIE, • Keep fuel out of children’s CHECKING OIL LEVEL AND reach. MGH7000D, MGH7000DI, and ADDING OIL • Refuel generator in a well- MGH10000A) vente
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120 ONLY 120 240V ENM 00000005 HOURS 1/10 FULL POWER R PORTABLE GASOLINE GENERATORS Always wear safety glasses when working BATTERY with battery. Make sure battery terminals (Models MGH5000DIE, are clean. Make sure cable connections are MGH7000D, MGH7000DI, and tight. MGH10000A) Always shut down engine before removing or attaching battery cables. Always remove WARNING: Battery gives off the negative (–) cable first. Always attach explosive gases. Keep sparks, negative (–) cable last. flam
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HOURS 1/10 FULL POWER 120 120 ONLY 240V ENM 00000005 OWNER’S MANUAL BATTERY GENERATOR EXTENSION Continued GROUNDING CORDS Only use grounded extension cords. Be sure WARNING: You must prop- to use extension cord with proper wire gauge erly earth-ground generator be- size. See chart below. fore starting. This will help guard Nut against deadly electric shock. Recommended Minimum Wire Only use grounded plugs with Gauges (AWG) for Extension generator. Only use grounded ex- Cords Battery tensi
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R PORTABLE GASOLINE GENERATORS 1. Make two lists of items you want pow- ent size motors. For example: an elec- STANDBY ered by generator. List all motors and tric motor nameplate states 5 amps at 120 volts. 5 amps x 120 volts = 600 INSTALLATION TO motor powered appliances in one. List all lights, small appliances, etc. in the watts running. Multiply this figure by HOME OR other. For standby service to home or 3. This will show the starting watts building, only include items you must needed. 600
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240 VOLTS RESET RESET RESET RESET RESET 120 120 ONLY 240V RESET ENM 00000005 HOURS 1/10 120 VOLTS RESET TEST OWNER’S MANUAL Model MGH10000A also has a 120/240V, POWER CORD AND PLUG OPERATION 50-amp receptacle (see Figure 15). REQUIREMENTS GENERAL INFORMATION Model HWI3000 has only the 120V, 20- 120V, 30-amp twist-lock receptacle amp duplex receptacle. This generator is not large enough to power • NEMA L5-30P plug your entire home. Do not connect generator Model MGH3000 has only the 120V, 1
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R PORTABLE GASOLINE GENERATORS 4. Start the engine. OPERATION Choke Button A. Recoil Starter Continued Pulled Out Turn engine switch to the ON position (Closed Position) PRESTART (see Figures 19 and 20). Remove slack from starter rope by lightly pulling Operate generator on a firm, dry, and clean starter grip. Next, pull starter rope surface. The surface must be level. Protect briskly. generator from heavy dust, sand, dirt, rain, IMPORTANT: Do not let starter grip or snow. Do not locate generato
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OWNER’S MANUAL Fuel Valve Lever STOPPING ENGINE OPERATION (Off Position) IMPORTANT: The engine speed is preset. Continued The throttle is locked in preset position. Do not adjust throttle. HIGH ALTITUDE OPERATION Follow the steps below to stop engine. This generator will not perform well at high 1. Remove all electrical loads from gen- altitudes without proper adjustment. See erator (see Disconnecting Electrical engine owner’s manual for details. Loads). Remove electrical loads one at ADDING ELE
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R PORTABLE GASOLINE GENERATORS IMPORTANT: Keep generator level when MAINTENANCE WARNING: The muffler be- servicing. Never turn generator upside down comes very hot during operation. AND REPAIRS or stand it on end to service. The muffler remains hot for a Note: We supply the engine owner’s manual while after shutdown. Let engine WARNING: Only a qualified with generator. Refer to that manual for cool before storing. electrical service person should questions concerning engine maintenance service
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White LINE Black Red Black Green/Yellow Green White White Red 120V, 15A 120/240V 20A 120V, 15A 120V, 30A Receptacle Circuit Receptacle Receptacle Receptacle White Breaker 20A Circuit T1 T2 GFCI Breaker 25A Circuit Full Pwr Breaker Selector Red Black 20A Switch Circuit Breaker Black White T3 25A LINE T4 Hour Meter Yellow Green White Green Black Black Red Red Black Red Black Green Capacitor Main Auxiliary Windings Phase Stator White White Stator T2 T1 T3 T4 Rotor T1 T2 T3 T4 T1 T4 T3 T2 Green Whi
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Green 120V, 15A Receptacle R PORTABLE GASOLINE GENERATORS WIRING DIAGRAMS at Continued Green/Yellow Green Black 120/240V 30A 120V, 15A 120V, 15A o Circuit Receptacle Receptacle Receptacle Breaker 20A White White Circuit Duplex T1 Red GFCI White r Breaker 30A White T2 Circuit Breaker 20A Black Circuit Breaker T3 30A LINE Hour Meter T4 White Yellow Green Black Black Red ob Black Black Red Auxiliary Main Capacitor d Windings Phase Stator White White T2 T1 T3 T4 Rotor Stator n T1 T4 T3 T2 T1 T2 T3
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OWNER’S MANUAL TECHNICAL REPLACEMENT PARTS CENTRALS These Parts Centrals are privately owned SERVICE PARTS businesses. They have agreed to support our You may have further questions about in- Note: Use only original replacement parts. customer’s needs by providing original re- stallation, operation, or troubleshooting. This will protect your warranty coverage for placement parts and accessories. parts replaced under warranty. If so, contact DESA International’s Techni- Baltimore Electric cal Ser
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R PORTABLE GASOLINE GENERATORS 1a ILLUSTRATED PARTS LIST 2a For Models HWI3000 and MGH3000 Alternator Assembly 1b 7 This list contains replaceable parts used in your generator. When ordering parts, fol- 2b low the instructions listed under Replace- 4 ment Parts on page 17 of this manual. 22 5 6 3 14 21 20 15 13 19 17 16 15 13 7 12 8 18 9 7 10 11 7 KEY PART KEY PART NO. NUMBER DESCRIPTION QTY. NO. NUMBER DESCRIPTION QTY. 11 099861-01 Bottom Cover 1 099722-01 Alternator Assembly 12 099842-01 Draw
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OWNER’S MANUAL 23 ILLUSTRATED PARTS LIST For Models MGH4000D, MGH4000DI, MGH5000D, 25 MGH5000DI, MGH5000DIE, 24 22 9 MGH6000D, MGH6000DI, 15 21 MGH7000D, and MGH7000DI 20 Alternator Assembly 19 9 10 This list contains replaceable parts used in your generator. When ordering parts, 8 follow the instructions listed under Re- 14 placement Parts on page 17 of this 7 18 6 manual. 5 13 16 12 4 1 17 2 11 3 PART NUMBER FOR MODEL MGH5000D KEY MGH4000D MGH5000DI MGH6000D MGH7000D NO. MGH4000DI MGH5000DIE M
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R PORTABLE GASOLINE GENERATORS 19 ILLUSTRATED 18 PARTS LIST 20 For Model MGH10000A 17 13 Alternator Assembly 8 21 15 This list contains replaceable parts used in 26 your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. 12 10 24 14 5 11 23 25 1 2 6 4 16 22 9 7 3 KEY PART NO. DESCRIPTION NUMBER QTY. 1 Stator * 1 2 Rotor * 1 3 Draw Bolt 103188-01 1 4 Fan 103191-01 1 5 Balancing Disc 103192-01 1 6 Lifting Eyes 103193-01 2 7 D.E. Brack
