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PORTABLE GASOLINE
OWNER'S OPERATION AND INSTALLATION MANUAL
IMPORTANT: Read and understand this manual before operating or servicing
generator. Improper use of generator can cause serious injury. Keep this
manual for future reference.
GENERATORS
0 V
1 2
C I
G F
T
S E
R E
S T
T E
R
T E
M E
U R
H O
M
E N
0 5
0 0
0 0
0 0
1/ 10
S
U R
H O
L E
-I D
T O
A U
O N
O F
F
T
S E
R E
Generator Model: MGH8500IE
0 V
1 2
C K
L O
IS T
T W
0 V
1 2
V
4 0
C K
0 /2
1 2
L O
IS T
T W
V
4 0
C K
0 /2
1 2
L O
IS T
T W
T
S E
R E
T
S E
R E
T
S E
R E
R
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Table of Contents
Related Manuals for Master MGH8500IE
Summary of Contents for Master MGH8500IE
- Page 1 IMPORTANT: Read and understand this manual before operating or servicing generator. Improper use of generator can cause serious injury. Keep this manual for future reference. IS T 0 /2 IS T 0 /2 IS T 1/ 10 -I D Generator Model: MGH8500IE...
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Page 2: Safety Information
PORTABLE GASOLINE GENERATORS SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual and the engine owner’s manual carefully. Become famil- iar with this generator before try- ing to operate or service it. Know its uses, limitations, and any haz- ards involved. Improper use of generator can cause severe in- jury or death from explosion, fire, burns, electrical shock, or car-... -
Page 3: Product Identification
Gas Cap/Fuel Gauge Ground Bolt Alternator 120 Volt Receptacle (GFCI) Hour Meter Auto-Idle Switch Control Panel Figure 1 - Portable Generator IS T 0/ 24 IS T 0/ 24 IS T 120 Volt Receptacle -I D 120/240 Volt Receptacle Circuit Breaker... -
Page 4: Specifications
Note: Ratings apply to SAE standard conditions. Reduce ratings 3 % for each 1000 feet above sea level and 1% for each 10° Fahrenheit rise above 60°F. MGH8500IE Electrical Rated Wattage ... 8500 Rated Amperage 120 V ... 70.8 240 V ... 35.4 Receptacle 120-V, 20-A Duplex ... -
Page 5: Generator Features
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 6: Engine Oil
PORTABLE GASOLINE GENERATORS 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. -
Page 7: Extension Cords
BATTERY Continued WARNING: Battery contains sulfuric acid. Contact with skin or eyes may cause severe burns. Do not tilt generator with battery installed. Tilting could cause bat- tery acid to spill. Wear protective clothing and face shield when servicing. Keep out of children’s reach. -
Page 8: Generator Grounding
PORTABLE GASOLINE GENERATORS GENERATOR GROUNDING WARNING: You must prop- erly earth-ground generator be- fore starting. This will help guard against deadly electric shock. Only use grounded plugs with generator. Only use grounded ex- tension cords. Only use three-wire or double-insulated power tools. Grounding generator helps prevent electric shock from a ground fault condition. -
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 using 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 watt- age 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.
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Page 12: High Altitude Operation
PORTABLE GASOLINE GENERATORS OPERATION Continued Adjusting the Idle Speed IMPORTANT: Adjust the idle speed only: • If the idle speed becomes too high. • If the engine idle speed will not regulate (en- gine wants to “hunt” or speeds up and slows down repeatedly). -
Page 13: Stopping Engine
OPERATION Continued STOPPING ENGINE IMPORTANT: The engine speed is preset. The throttle is locked in preset position. Do not adjust throttle. Follow the steps below to stop engine. 1. Remove all electrical loads from gen- erator (see Disconnecting Electrical Loads, page 12). Remove electrical loads one at a time. -
Page 14: Servicing The Engine
PORTABLE GASOLINE GENERATORS SERVICING THE ENGINE Honda parts and services should be handled by your nearest authorized engine service firm. Check the yellow pages of your tele- phone directory under the listing: Engines Gasoline, Honda or visit: www.honda-engines.com or call Honda direct: 1-800-426-7701 TROUBLESHOOTING Note: For additional help, visit DESA... -
Page 15: Electrical Component Specifications
ELECTRICAL COMPONENT SPECIFICATIONS Model MGH8500IE * Connect T2 (green) and T3 (black). Measure resistance between T1 (red) and T4 (blue). ‡ Resistance between brown and white leads. † Remove diodes to check resistance. 115407 OWNER’S MANUAL Resistance in Ohms Stator... -
Page 16: Wiring Diagram
PORTABLE GASOLINE GENERATORS WIRING DIAGRAM Green Blue Yellow White White To Solenoid Duplex Grn/ Green/ Yellow Green/ Yellow Green/ Yellow Yellow Green/Yellow To Alternator To Roll Cage Ground Black Grn/ Grn/ Green/Yellow Green Black Green/ Yellow 115407... -
Page 17: Illustrated Parts List
ILLUSTRATED PARTS LIST Alternator Assembly This list contains replaceable parts used in your generator. When ordering parts, follow the instructions listed under Re- placement Parts on page 23 of this manual. KEY PART * Part not available by itself. Must purchase Alternator Assembly. ** Available at any hardware store. - Page 18 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST Fuel Tank and Roll Cage IS T 0 /2 IS T 0 /2 IS T 1 /1 -I D 115407...
- Page 19 ILLUSTRATED PARTS LIST Fuel Tank and Roll Cage This list contains replaceable parts used in your generator. When ordering parts, fol- low the instructions listed under Replace- ment Parts on page 23 of this manual. * Available at any hardware store. 115407 OWNER’S MANUAL PART...
- Page 20 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST Solenoid and Control Board Assemblies and Mounting Control Board Assembly and Mounting Solenoid Assembly and Mounting 115407...
- Page 21 ILLUSTRATED PARTS LIST Solenoid and Control Board Assemblies and Mounting This list contains replaceable parts used in your generator. When ordering parts, fol- low the instructions listed under Replace- ment Parts on page 23 of this manual. PART NUMBER 115812-01 100324-03 102939-01 103811-01...
- Page 22 PORTABLE GASOLINE GENERATORS ILLUSTRATED PARTS LIST Control Panel This list contains replaceable parts used in your generator. When ordering parts, fol- low the instructions listed under Replace- ment Parts on page 23 of this manual. † ‡ ‡ * Includes fastening hardware ‡...
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Page 23: Replacement Parts And Accessories
REPLACEMENT PARTS AND ACCESSORIES For original replacement parts and accesso- ries, contact your nearest Authorized Dealer or Authorized Service Center for this prod- uct. If they can not supply the part or acces- sory, contact your nearest Parts Central listed below. -
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™...