Generac Power Systems MEGA 2500 Owner'S Manual Download Page 2

EQUIPMENT DESCRIPTION

This generator is an engine-driven, revolving field, alter-

nating current (AC) generator.  It was designed to supply

electrical power for operating compatible electrical light-

ing, appliance, tool and motor loads.  This manual

contains information for a generator that operates 120

volt, single phase, 60Hz devices that require up to 2000

watts (2.0 kW) of power that pull up to 15 amps at 120

volts.

CAUTION:  Do not exceed the generator’s

wattage/amperage capacity.  Add up the rated

watts of all devices you are connecting to

generator receptacles at one time.  This total

should not be greater than 2000 watts for this

generator.  In most cases rated watts of the

electrical device can be found on the device

nameplate.  If the device nameplate gives

only volts and amps, multiply volts times

amps to obtain watts (volts x amps = watts).

The generator’s revolving field is driven at about 3600

rpm by a single-cylinder engine.
Every effort has been expended to make sure that the

information in this manual is both accurate and current.

However, Generac reserves the right to change, alter or

otherwise improve the product at any time without prior

notice.

DANGER:  Do not tamper with engine gov-

erned speed.  High operating speeds are

dangerous and increase risk of personal

injury or damage to equipment.  The genera-

tor supplies correct rated frequency and

voltage only when running at proper gov-

erned speed.  Incorrect frequency and/or

voltage can damage some connected electri-

cal loads.  Operating at excessively low

speeds imposes a heavy load at such

reduced speeds, when adequate engine

power is not available, and may short engine

life.

SAFETY RULES

This generator set was designed and manufactured for

specific applications.  Do not attempt to modify the unit

or use it for any application it was not designed for.  If

you have any questions about your generator’s applica-

tion, ask your Dealer/Distributor or consult the factory.
The manufacturer could not possibly anticipate every cir-

cumstance that might involve a hazard.  For that reason

warnings in the Manual and warnings on tags or decals

affixed to the unit are not all-inclusive.  If you intend to

handle, operate or service the unit by a procedure or

method not specifically recommended by the manufac-

turer, first make sure that such a procedure or method

will not render this equipment unsafe or pose a threat to

you and others.
Read this manual carefully and become familiar with

your generator set.  Know its applications, its limitations

and any hazards involved.

• The generator produces a very powerful voltage that

can  cause  extremely  dangerous  electrical  shock.

Avoid contact with bare wires, terminals, etc.  Never

permit any unqualified person to operate or service

the generator.

• Never  handle  any  kind  of  electrical  cord  or  device

while standing in water, while barefoot or while hands

or feet are wet.  Dangerous electrical shock will result.

• The National Electric Code requires the frame and

external electrically conductive parts of generator be

properly  connected  to  an  approved  earth  ground.

Local electrical codes may also require proper ground-

ing of the generator.  Consult with a local electrician

for grounding requirements in your area.

• Use a ground fault circuit interrupter in any damp or

highly  conductive  area  (such  as  metal  decking  or

steel work).

• Do not use any worn, bare, frayed or otherwise dam-

aged electrical cord sets with the generator.  Using any

defective cord set may result in electrical shock or

damage to equipment and/or property.

• Operate generator only on level surfaces and where

it will not be exposed to excessive moisture, dirt, dust

or corrosive vapors.

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Generac Mega 2500 Extended Life Generator

MODEL & SERIAL NUMBERS

In the spaces provided below, insert the Model and Serial

numbers of your generator. Retain these numbers for

future reference.  You can find Model and Serial numbers

on the generator data plate, along with other important

information.
Model Number
Serial Number

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects, or other reproductive harm.

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Summary of Contents for MEGA 2500

Page 1: ...vent of a utility power failure the fol lowing step must be taken Before connecting the generator to an electrical system open the main circuit breaker or main switch serving the system to isolate the...

Page 2: ...ce that might involve a hazard For that reason warnings in the Manual and warnings on tags or decals affixed to the unit are not all inclusive If you intend to handle operate or service the unit by a...

Page 3: ...rator with elec trical loads connected to receptacles with the connected devices turned ON Start the engine and let it stabilize before connecting electrical loads Dis connect all electrical loads bef...

Page 4: ...no special additives DO NOT USE SAE 10W 40 Select the oil s viscosity grade according to your expected operating temperature Although multi viscosity oils 5W30 10W30 etc improve starting in cold weat...

Page 5: ...IRCUIT BREAKER Protects the genera tor against electrical overload Breaker is push to reset type AIR CLEANER Filters intake air as it is drawn through the engine 5 5 H P ENGINE Provides the power need...

Page 6: ...buretor cleaner products in the fuel tank or permanent damage may occur Clean area around fuel fill cap remove cap Add UNLEADED regular gasoline slowly to fuel tank Install fuel cap and wipe up any sp...

Page 7: ...king around a battery Battery electrolyte fluid is an extremely caustic sulfuric acid solu tion that can cause severe burns Do not permit fluid contact with eyes skin clothing etc If Spill occurs flus...

Page 8: ...r for starting than for running This surge of power lasts for only a few seconds when starting such motors Be sure you allow for this high starting wattage when selecting electrical devices to connect...

Page 9: ...e cleanliness of the generator frequently and clean when dust dirt oil moisture or other foreign sub stances are visible on its exterior surface NOTE We DO NOT recommend using a garden hose to clean g...

Page 10: ...r a hot generator Let the unit cool for a sufficient time before placing a cover on the unit Placing a cover on the unit before generator is sufficiently cool could could start the cover on fire ENGIN...

Page 11: ...Connect wire to spark plug to spark plug 6 Bad spark plug 6 Replace spark plug 7 Water in gasoline 7 Drain gas tank fill with fresh fuel 8 Overchoking 8 Open choke fully and crank engine 9 Excessively...

Page 12: ...ELECTRICAL DATA Drawing No 99697 G E N E R A C Generac Mega 2500 Extended Life Generator 12 E x t e n d e d L i f e G e n e r a t o r...

Page 13: ...DED VIEW CONTROL PANEL ITEM PART NO QTY DESCRIPTION 1 99837 1 PANEL Control 2 66818 2 OUTLET 120V 15A 3 99887 1 CAPACITOR 12 5 MFD 4 90418 1 OUTLET 12V DC 5 84543 C 4 SCREW 3 5 x 18mm Lg Phillips Head...

Page 14: ...EXPLODED VIEW GENERATOR Generac Mega 2500 Extended Life Generator 14 E x t e n d e d L i f e G e n e r a t o r G E N E R A C Drawing No B1763...

Page 15: ...SHNUT 1 2 Dia 20 B1760 2 ASSEMBLY 10 Wheel Tire 21 86292 10 HHCS 10 16 x 3 4 Self Drill 22 52858 2 NUT M8 1 25 Locking 23 87841 2 MOUNT Vibration 24 39414 2 HHCS M8 1 0 x 35 ITEM PART NO QTY DESCRIPTI...

Page 16: ...e and does not apply to a generator set or engine or parts which have been subjected to improper or unauthorized installation misuse negligence accident overloading over speeding improper maintenance...

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