Hyundai HY300SEI User manual

PRINTSPEC: EN3000sei-2013v1
© 2013 MIDLAND POWER INC.

Thank you for purchasing this Hyundai GreenPower portable inverter generator.
Please register your product in order for us to ensure your continued
satisfaction.
This manual covers the safety, operation and maintenance procedures
for the HY3000sei.
All information in this publication is based on the latest product
information available at the time of approval for printing.
No part of this publication may be reproduced without written permission.
If a problem should arise, please contact us by using the contact information at
the end of this manual.
It is important that this manual be read and fully understood before operating the
generator set. Failure to do so may cause serious injuries or equipment damage,
and may void the warranty.

CONTENTS
Safety Precautions
AC Safety Guidelines
Identication of Components
Pre-operation Inspection
Fuel Level Check
Air Filter Check
Operation
Using the Generator
AC Operation
DC Operation
Stopping the Generator
Maintenance
Troubleshooting
Specications
Warranty
Glossary
5
6
7
8
9
10
11
12
13
14
15
17
22
26
28
31

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HY3000sei User Manual
SAFETY PRECAUTIONS
This generator is designed to give safe and dependable service if operated
according to instructions. Read and understand this manual carefully before
operating the generator, failure to follow instructions could result in serious injury
or death.
Engines give off carbon monoxide, an odorless, colorless, poison gas. Breath-
ing carbon monoxide can cause nausea, fainting or death. Do not operate the
generator indoors or in a conned area and make sure the working environment
is well-ventilated.
The exhaust and mufer becomes very hot during operation and remains hot
for a while after stopping the engine. Make sure to read all warning labels. Be
careful not to touch the mufer while it is hot. Let the engine cool before storing
the generator indoors.
When storing gasoline or equipment with fuel in tank: Store away from furnaces,
stoves, water heaters or other appliances that have a pilot light or other ignition
source because they can ignite.
OPERATING INSTRUCTIONS
• Operate the generator according to instructions for safe and depend-
able service.
• Always perform a pre-operation inspection before starting the engine.
• Properly clean and maintain the equipment.
• Make sure to read and understand all warning labels.
• Gasoline is a highly ammable and explosive liquid. Make sure to
refuel in a well ventilated area with the engine stopped.
• When refuelling the generator, keep it away from cigarettes, open
ames, smoke, and/or sparks.
• Connections for standby power to a building’s electrical system must
be done by a qualied electrician and must comply with all applicable
laws and electrical codes. Improper connections may cause serious
injuries to workers during power outages. When the utility power is
restored, the generator may explode or cause res
• Place generator at least 1 m (3 ft.) away from buildings or other equip-
ment during operation.
• Operate the generator on a level surface. Tilting the generator may
result in fuel spillage.
• Know how to stop the generator quickly and understand the operation
of all controls. Never permit anyone to operate the generator without
understanding the proper instructions.

6HY3000sei User Manual
• Do not operate the generator in rain or snow or allow any moisture to
come in contact with the generator.
• Do not touch the spark plug while the generator is operating and
shortly after the generator has been shut down.
• Keep children away from the generator when it is in use.
AC SAFETY GUIDELINES
Before connecting the generator to an electrical device, or power cord:
• Make sure that everything is in right working order. Faulty devices or
power cords can lead to an electrical shock.
• Turn off the generator immediately if the device begins to operate
abnormally. Then disconnect the device and investigate the problem.
• Make sure that the electrical rating of the device does not exceed
that of the generator. If the power level of the device is between the
maximum output power and the running power of the generator, the
generator should not be used for more than 30 minutes.
• The connections from the generator to the household power supply
should be done by a professional electrical technician. Improper con-
nections may lead to a re hazard or damages to the generator set.
MAINTENANCE SAFETY
• After any maintenance is performed, wash your body immediately us-
ing soap and clean water. Repeated exposure to lubricant may cause
skin irritation.
• Do not clean the lter sponge with ammable uids, such as gasoline,
or explosion may occur.
• Turn off the generator set before performing any maintenance. Other-
wise it can cause severe personal injury or death.
• Allow the generator set to cool down before performing any mainte-
nance.
• Always wear safety glasses when cleaning the generator with air.
• Do not clean the generator set with a pressure washer because it may
cause damage to the generator set.
• Before working with batteries, ventilate the area, wear safety glasses,
do not smoke and always disconnect the negative cable rst and
reconnect it last.
• Use rubber gloves when coming into contact with engine oil.
• Always stop the generator set before removing the oil ller cap.
• Only qualied maintenance personnel with knowledge of fuels,
electricity, and machinery hazards should perform maintenance
procedures.

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HY3000sei User Manual
OTHER SAFETY HAZARDS
• To avoid breathing in poisonous carbon monoxide from the exhaust
gases, adequate ventilation should be provided if the generator set is
running in a partially enclosed space.
• If the generator set is stored outdoors, check all the electrical compo-
nents on the control panel before each use.
• Moisture can damage the generator and can lead to an electric shock.
IDENTIFICATION OF COMPONENTS
Rear Cover
Choke Rocker
Fuel Switch
Primer Bulb
Maintenance cover
Top Maintenance Cover
Control Panel
Fuel Cap Cover
Starter Grip

8HY3000sei User Manual
PRE-OPERATION INSPECTION
WARNING
• Ensure that the generator is on a level surface and the engine is
turned off before inspection.
ENGINE OIL INSPECTION
Use high-detergent, premium quality, 4-stroke engine oil. Select the appropriate
viscosity for the average temperature in your area.
1. Loosen the cover screws and remove the maintenance cover (refer
to g.).
2. Remove the oil ller cap and wipe the dipstick clean (refer to g.).
Check the oil level by inserting the dipstick into the ller neck without
rotating it.
3. If the level is low, ll to the upper limit of the oil ller neck with the
recommended oil.
4. Reinstall the maintenance cover and tighten the cover screws.
L
L/2
Oil Filler Cap
Upper limit
Dipstick
Lower limit
Cover Screw
Maintenance cover

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HY3000sei User Manual
NOTICE
The oil alert system is designed to prevent engine damage caused by
an insufcient amount of oil in the crankcase. Before the oil level in the
crankcase falls below a safe limit, the oil alert system will automatically
shut down the engine. If the oil alert system shuts down the engine, the
oil alert indicator will come on when you operate the starter and the
engine will not run. If this occurs, add engine oil.
FUEL LEVEL CHECK
1. Check fuel level display located on top of generator gas tank.
2. Rell the fuel tank if the level is low. Refuel carefully to avoid spilling
fuel. Do no ll above the upper limit mark (Refer to Fig.).
CAUTION
• Gasoline is highly ammable and explosive. Keep the engine
away from heat, spark the open ame.
• Refuel in a well-ventilated area with the engine stopped.
• Only handle fuel outdoors.
• Wipe up spills immediately.
• Avoid getting dirt, dust, or water in the fuel tank.
• Never use an oil/gasoline mixture or dirty gasoline.
• Do not use fuel containing alcohol. Fuel system damage or en-
gine performance problems will result from the use of fuels that
contain alcohol.
• Avoid repeated or prolonged contact with skin or breathing of
fuel vapor.
Open
Fuel cap
Cover of fuel cap

10 HY3000sei User Manual
CHECK THE AIR FILTER
WARNING
Never run the engine without the air lter. Rapid engine wear will result
from contaminants, such as dust and dirt, being drawn through the
carburetor into the engine.
1. Remove air lter cover and sponge.
2. Inspect lter sponge for dirt and debris.
3. Clean lter sponge by soaking in gasoline, ring out before reinstalling.
4. Replace air lter every 24 months or when necessary.
Screws
Maintenance Cover
Air Filter Sponge
Air Filter Cover

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HY3000sei User Manual
OPERATION
STARTING THE GENERATOR SET
NOTICE
• A hot engine will not start if there is too much gasoline in the
cylinder. If this happens, wait for 5 to 10 minutes for the engine
to cool down before starting.
• The engine will stop automatically when it is out of gasoline.
• When the output indicator light (green) does not light and the
overload indicator light (red) lights instead, set the engine switch
to STOP, stop the engine at once and then start the engine again.
RECOIL START
1. Rotate the fuel switch to the ON position according to the arrow
direction.
2. Flip the engine switch to the ON position.
3. Pull the starting grip lightly until resistance is felt, then pull briskly to
start the engine. (Refer to Fig.)
WARNING
• Do not allow the starter grip to snap back. Return it slowly by
hand
• Grasp the carrying handle rmly to prevent the generator from
falling over when pulling the starting grip

12 HY3000sei User Manual
NOTICE
• If the engine stops and cannot be restarted, check oil level be-
fore troubleshooting other possibilities.
• Ensure ECON switch is off before turning on any connected de-
vices.
PRIMER BULB
The primer bulb is used for bringing small amounts of gasoline to the throat
opening of the carburetor. The problem is that sometimes generator cannot start
because the fuel cannot reach the carburetor.
Procedure for using the primer bulb
1. Set the choke rocker in the OPEN position.
2. Push the primer bulb 7 to 10 times.
3. Move the choke rocker to the CLOSE position and start the
engine.
USING THE GENERATOR SET
Connections for standby power to a building’s electrical system must be done
by a qualied electrician and must comply with all applicable laws and electrical
codes. Improper connections may cause serious injuries to electrical worker
during power outages. Additionally, the generator may explode or cause res
when the utility power is restored.
WARNING!
• To prevent electrical shock from faulty appliances, the generator
should be grounded.
• Limit operation requiring maximum power to 30 minutes.
• Do not exceed the current limit specied for any one receptacle.
• Do not connect the generator to a household circuit.
• Do not modify or use the generator for other purposes than it
is intended for.
• Be sure to use properly isolated cable when an extension cable
is required.
• Limit length of extension cables to 60 m for cables of 1.5 mm
wire thickness and 100 m for cables of 2.5 mm wire thickness.
• Keep the generator away from other electric cables or wires,
such as a distribution network.
• The DC receptacle can be used while the AC power is in use. If
you use both at the same time, be sure not to exceed the total
power for AC and DC.
• Before connecting a device to the generator, make sure the elec-

13
HY3000sei User Manual
trical rating of the device does not exceed the electrical rating
of the generator.
• Be sure the device is turned off before plugging in the power
cord.
• When the output indicator light (green) is OFF, and the overload
indicator light (red) is ON, ip the engine switch to the STOP
position, stop the engine at once and then start the engine again.
NOTICE
When a connected device draws high startup power the overload and
output indicator light may briey illuminate, but this is to be expected.
Once the device starts up the overload indicator light will shut off and
the output light will remain green.
GROUND TERMINAL
• Before using the generator, a ground wire must be connected to the
ground terminal.
• Before using the ground terminal consult a qualied electrician. (Refer
to Fig.)
FOR AC OPERATION
1. Ensure all devices are OFF before connecting to the generator.
2. Start the generator and make sure that the green output indicator light
turns on. (Refer to Fig.)
3. Plug the power cord of the device into the AC socket, turn on the
circuit protector, and turn on the device. (Refer to Fig.)

14 HY3000sei User Manual
NOTICE
• Under normal operating conditions, the output indicator light
(Green) will be ON
• If the generator is overloaded (in excess 100W), or if there is a
short circuit in a connected device, the overload indicator light
(Red) will be ON.
• Substantial overloading that continuously lights the overload
indicator light (red) may damage the generator. Marginal over-
loading that temporarily lights the overload indicator (red) may
shorten the service life of the generator.
• If the oil level falls below a safe limit, the low oil indicator light
(Red) comes on and the engine will be automatically stopped.
If the engine stops or the low oil indicator light comes on when
you pull the starter grip, check the engine oil level before trouble-
shooting in other areas. (Refer to Fig.)
FOR DC OPERATION
Do not leave generator unattended when charging batteries. Stop charging
when the voltage of the batteries is above 16V. Failure to monitor charge
level may result in damage to the battery or personal injury.
The DC receptacle may be used while the AC power is in use.
The overloaded DC circuit will trip the DC circuit protector. If this happens, dis-
connect the DC load before pushing in the circuit protector to resume operation.
1. Set the ECON switch to the OFF position.
2. Connecting the battery charging cable.
• Connect the battery charging cable to the battery.
• Plug the charging wires into the DC outlet of the generator.
• Connect the positive (Red) terminal of the charging wire to the
positive (+) battery terminal and negative (black) terminal of the
charging wire to the negative (-) battery terminal.
3. Turn the start switch to the ON position.
4. Set the DC breaker switch to ON position (refer to g.).
5. Start the generator.
Output
Surcharge
Overload
Pret A Utiliser
Low Oil
Huile Bas

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HY3000sei User Manual
NOTICE
• The DC socket is only used for charging a 12V battery. (refer
to g.).
• When using the DC socket, turn the ECON switch to the OFF
position (refer to g.).
WARNING
• The battery gives off explosive gases; keep sparks, ames and
cigarettes away. Provide adequate ventilation when charging or
using batteries.
• Battery posts, terminals, and related accessories contain lead
components. Wash hands after handling.
STOPPING THE GENERATOR SET
FOR AC OPERATION
1. Turn off the device and unplug devices from the generator recep-
tacles.
2. Turn the start switch to the STOP position.
3. Rotate the fuel switch to the OFF position (in the clockwise direction).
NOTICE
Be sure the fuel SWITCH is in the OFF position and the start switch is
in the STOP position when stopping, transporting and/or storing the
generator
FOR DC OPERATION
An overloaded DC circuit, excessive current draw by the battery, or a wiring
problem will automatically trip (turn off) the DC breaker switch. If this happens,
wait a few minutes before pressing the breaker switch to the ON position to
resume operation. If the breaker switch continues to go OFF, discontinue charg-
ing and contact your authorized dealer.

16 HY3000sei User Manual
DISCONNECTING THE CHARGING WIRE
1. Stop the engine.
2. Disconnect the negative (black) terminal of charging wire from the
negative (-) battery terminal.
3. Disconnect the positive (red) terminal of the charging wire from the
positive (+) battery terminal.
4. Disconnect the charging wire from the DC Receptacle of the genera-
tor.

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HY3000sei User Manual
MAINTENANCE
Proper maintenance is important because it will ensure safe, economical and
trouble-free operation. It will also reduce air pollution. Improper maintenance
may cause the generator to malfunction and can lead to serious injuries.
MAINTENANCE SCHEDULE
WARNING
• Shut off the engine before performing any maintenance. When
the engine is running, make sure the area is well ventilated.
• If you require a part for replacement, we strongly recommend
using Hyundai OEM replacement parts. Do not use non-Hyundai
parts. Contact customer service for replacement parts.
• Some of these maintenance techniques can be dangerous and
should be performed by a qualied technician.
To ensure long-lasting durability and performance be sure to inspect and main-
tain your generator based on the schedule below:
ITEM ACTION EACH
USE
1 MONTH
(20 HRS)
4 MONTHS
(50 HRS)
6 MONTHS
(100 HRS)
YEARLY
(200 HRS)
ENGINE
OIL
Check Level •
Change • •
AIR
FILTER
Check •
Clean •
REFER TO
NOTICE 1
SPARK
PLUG
Check •
Replace •
VALVE
CLEARANCE Check •
REFER TO
NOTICE 2
COMBUSTION
CHAMBER Clean EVERY 300 HOURS
FUEL TANK
AND FILTER Clean •
REFER TO
NOTICE 2
FUEL LINE Clean EVERY 2 YEARS (REPLACE IF NECESSARY). REFER TO NOTICE 2.
1. Service more frequently when used in dusty areas.
2. Should be serviced by an authorized dealer.

18 HY3000sei User Manual
AIR FILTER SERVICE
A dirty air cleaner will restrict air ow to the carburetor. To prevent carburetor
malfunction, service the air cleaner regularly. Service more frequently when
operating the generator in extremely dirty areas.
1. Loosen cover screws and remove the maintenance cover.
2. Remove air lter cover.
3. Remove air lter sponge (refer to g.).
4. Check air lter sponge to make sure it is clean and in good condition.
Clean sponge if dirty (refer to g.). Replace sponge if damaged.
To clean the sponge:
• Clean air lter sponge in warm soapy water or non-ammable
detergent. Allow to dry before reinserting into generator.
• Dip sponge in clean engine oil and squeeze out all excess oil.
The engine will produce excess smoke if too much oil is left in
the lter.
• Wipe dirt off the air lter cover using a moist rag.
CHANGING THE ENGINE OIL
1. Set the start switch to the STOP position and make sure the fuel cap
is fully closed.
2. Loosen the cover screws and remove the maintenance cover.
3. Place a container next to the engine to catch the used oil (refer to
g.).
4. Remove the oil ller cap/dipstick and drain the oil into the container by
tilting the generator.
Screws
Maintenance Cover
Air Filter Sponge
Air Filter Cover

19
HY3000sei User Manual
5. With the engine in a level position, add oil to the upper level mark.
(refer to g.).
6. Reinstall the oil ller cap/dipstick securely.
7. Reinstall the maintenance cover and tighten the cover screws
securely.
WARNING
• Make sure the start switch is in the STOP position before drain-
ing.
• Please dispose of used motor oil in a manner that is compatible
with the environment. We suggest you take it in a sealed con-
tainer to your local service station for reclamation. Do not throw
it in the trash or pour it on the ground.
• Do not use gasoline for cleaning since it is ammable and explo-
sive under certain conditions.
L
L/2
Oil Filler Cap
Upper limit
Dipstick
Lower limit

20 HY3000sei User Manual
SPARK PLUG SERVICE
To insure proper operation the spark arrester should be cleaned thoroughly at
least once every 100 hours of use.
1. Remove the top screw and the top maintenance cover (refer to g.).
2. Remove the ignition coil (refer to g.).
3. Clean any dirt and debris around the spark plug base.
4. Use a wrench to remove the spark plug (refer to g.).
5. Visually inspect the spark plug. Clean the spark plug with a brush if it
is to be reused.
6. The spark plug clearance gap should be between 0.7 mm - 0.8 mm
(0.028” to 0.03”) (refer to g.).
7. Install the correctly gapped spark plug back into the original position.
Screw
Top maintenance cover
Ignition Coil
Spark Plug Wrench
Ignition Coil
High Voltage wire
DC Wire
Spark Plug