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Master MGR2900, MGR4500I, MGR6000I Owner's Operation And Installation Manual

Master portable gasoline generator owner's operation and installation manual
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R
PORTABLE GASOLINE
GENERATORS
OWNER'S OPERATION AND INSTALLATION MANUAL
Generator Models: MGR2900, MGR4500I, and MGR6000I
IMPORTANT: Read and understand this manual before operating or servic-
ing generator. Improper use of generator can cause serious injury. Keep this
manual for future reference.

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Summary of Contents for Master MGR2900, MGR4500I, MGR6000I

  • Page 1 PORTABLE GASOLINE GENERATORS OWNER’S OPERATION AND INSTALLATION MANUAL Generator Models: MGR2900, MGR4500I, and MGR6000I IMPORTANT: Read and understand this manual before operating or servic- ing generator. Improper use of generator can cause serious injury. Keep this manual for future reference.

  • Page 2: Safety Information

    PORTABLE GASOLINE GENERATORS SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual and the engine owner’s manual carefully. Become familiar with this generator before trying to operate or service it. Know its uses, limitations, and any hazards involved. Improper use of generator can cause severe injury or death from explosion, fire, burns, electrical shock, or carbon monoxide poisoning.

  • Page 3: Product Identification

    Hour Meter Auto-Idle Switch Choke Lever Fuel Valve Lever Starter Grip Engine Engine ON/ OFF Switch Figure 1 - Portable Generator (Model MGR4500I Shown) Gas Cap/Fuel Gauge 120 Volt Receptacle (Duplex) 120 Volt Receptacle IS T 120/240 Volt Receptacle 0 /2...

  • Page 4: General Information

    PORTABLE GASOLINE GENERATORS GENERAL INFORMATION Master portable generators are rugged and compact. These generators use brushless alternators for dependable, trouble-free service. Robin’s gasoline engines provide long life under heavy use. These engines are governed to maintain engine speed of 3600 RPM under load.

  • Page 5: Specifications

    SPECIFICATIONS MODEL MGR2900 Electrical Rated Wattage 2500 Rated Amperage 120 V 20.8 240 V Receptacle 120-V, 20-A Duplex 120-V, 15-A GFCI 120-V Twist-Lock 120/240-V Twist-Lock 120-V Voltage Selector Switch General Robin Engine H.P. Robin Model EX170-D52010 Fuel Type Gasoline Fuel Tank Capacity 3.9 qt.

  • Page 6: Generator Features

    PORTABLE GASOLINE GENERATORS GENERATOR FEATURES OIL ALERT SYSTEM The oil alert system protects the engine from low oil damage. This system automatically shuts down the engine and prevents engine restarting if the oil level falls too low. Note: When this happens, the engine switch remains in the ON position.

  • Page 7: Receptacle Circuit Breaker

    GENERATOR FEATURES Continued RECEPTACLE CIRCUIT BREAKER The circuit breakers protect the receptacles and alternator. Overloading generator will trip circuit breaker. A short circuit in item being powered will also trip breaker. If this occurs, unplug electrical load from recep- tacle. Let circuit breaker cool down. Push circuit breaker button to reset.

  • Page 8: Extension Cords

    PORTABLE GASOLINE GENERATORS EXTENSION CORDS Only use grounded extension cords. Be sure to use extension cord with proper wire gauge size. See chart below. Recommended Minimum Wire Gauges (AWG) for Extension Cords Ampere AWG for Length of Load Cord in Feet 100' 150' GENERATOR...

  • Page 9: Determining Electrical Load For Generator

    DETERMINING ELECTRICAL LOAD FOR GENERATOR You must decide what electrical load your generator can power. Do this before us- ing generator. Use the following four-step method. It will help you select a load that is not too large. Make sure total wattage of all electrical loads does not exceed rated wattage of generator.

  • Page 10: Operation

    PORTABLE GASOLINE GENERATORS OPERATION GENERAL INFORMATION This generator is not large enough to power your entire home. Do not connect generator to any existing electrical circuits. Plug items directly into generator receptacles. Do not exceed amperage rating of receptacles. Only use grounded cords.
  • Page 11 OPERATION Continued PRESTART Operate generator on a firm, dry, and clean surface. The surface must be level. Protect generator from heavy dust, sand, dirt, rain, or snow. Do not locate generator near standing water and snow. Make sure area is well-vented. WARNING: Only responsible adults should use generator.
  • Page 12 PORTABLE GASOLINE GENERATORS OPERATION Continued AUTO-IDLE OPERATION IMPORTANT: Never start engine with elec- trical loads connected. Start engine before adding electrical loads. 1. If engine is cold, turn the Auto-Idle switch OFF (see Figure 15). 2. Start engine. Allow engine to warm up with no load for five minutes.

  • Page 13: Adding Electrical Loads

    OPERATION Continued HIGH ALTITUDE OPERATION This generator will not perform well at high altitudes without proper adjustment. See engine owner’s manual for details. ADDING ELECTRICAL LOADS IMPORTANT: Do not overload generator. Make sure total wattage of all electrical loads does not exceed rated wattage of generator. Overloading may shorten generator life.

  • Page 14: Troubleshooting

    PORTABLE GASOLINE GENERATORS STORAGE WARNING: Remove all fuel from fuel tank before storing generator. Store fuel in approved container. Store fuel in a well-vented area free of open flames or sparks. WARNING: The muffler be- comes very hot during operation. The muffler remains hot for a while after shutdown.

  • Page 15: Electrical Component Specifications

    ELECTRICAL COMPONENT SPECIFICATIONS Model MGR2900 MGR4500I MGR6000I * Connect T2 (green) and T3 (black). Measure resistance between T1 (red) and T4 (yellow). ‡ Resistance between brown and white leads. † Remove diodes to check resistance. WIRING DIAGRAMS Rotor Green Figure 20 - Wiring Diagram, Model MGR2900 114716 Resistance in Ohms Stator...
  • Page 16 PORTABLE GASOLINE GENERATORS WIRING DIAGRAMS Continued Green Black Blue Yellow White White To Solenoid Figure 21 - Wiring Diagram, Models MGR4500I and MGR6000I Duplex Grn/ Green/ Yellow Green/ Yellow Green/ Yellow Yellow Green/Yellow To Alternator To Roll Cage Ground Black Black Grn/ Grn/...

  • Page 17: Illustrated Parts List

    ILLUSTRATED PARTS LIST For Model MGR2900 Alternator Assembly This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. PART NUMBER DESCRIPTION 099722-02 Alternator Assembly* 100074-01 Top Cover 100445-01 120V, 15A Duplex (GFCI)
  • Page 18 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST For Models MGR4500I and MGR6000I Alternator Assembly This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. PART NUMBER FOR MODEL MGR4500I 114285-01 115243-01...
  • Page 19 ILLUSTRATED PARTS LIST For Model MGR2900 Roll Cage This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. * Available at any hardware store. 114716 PART NUMBER DESCRIPTION...
  • Page 20 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST For Models MGR4500I and MGR6000I Fuel Tank and Roll Cage 1/ 10 -I D IS T 0 /2 IS T 114716...
  • Page 21 ILLUSTRATED PARTS LIST For Models MGR4500I and MGR6000I Fuel Tank and Roll Cage * Available at any hardware store. 114716 This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. PART NUMBER FOR MODEL MGR4500I MGR6000I...
  • Page 22 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST For Models MGR4500I and MGR6000I Control Panel This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. PART NUMBER FOR MODEL MGR4500I 114738-01 22616009...

  • Page 23: Replacement Parts And Accessories

    REPLACEMENT PARTS AND ACCESSORIES For original replacement parts and acces- sories, contact your nearest Authorized Dealer or Authorized Service Center for this product. If they can not supply the part or accessory, contact your nearest Parts Central listed below. Each Authorized Dealer, Au- thorized Service Center, and Parts Central is independently owned and operated.

  • Page 24: Warranty Information

    WARRANTY INFORMATION Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. GASOLINE PORTABLE GENERATORS DESA Specialty Products™...

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