Hyundai HG Series User manual

HG SERIES
Manual

1
HYUNDAI
The engine exhaust from this product contains chemicals known
to cause cancer, birth defects or other reproductive harm.
©2022 Hyundai Power Equipment. All Rights Reserved.
Licensed by Hyundai Corporation Holdings, Korea.
HG_Manual_EN_2022-10-04
HG SERIES

2HG SERIES
This product is supported by Midland Power. Contact us
directly for assistance and warranty help. Do not return this
product to store.
You must register online for your warranty to be valid.
It only takes a minute, do it now while you still have your
purchase receipt.
Support for your product is available online, including
parts, service center locations, and live expert advice.
Or call us anytime at 1-877-528-3772.
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Visit us Online at
www.hyundaipower.ca

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HYUNDAI
THIS PRODUCT MEETS ALL CERTIFICATION REQUIREMENTS FROM:
MASTER CONTRACT: 230179 REPORT: 70057567 PROJECT: 70108715
READ THIS ENTIRE GUIDE BEFORE USING THIS
PRODUCT AND SAVE FOR LATER USE.
This user guide contains important instructions including
safety, setup, operation, and maintenance that must be
followed. All information in this guide is based on information
available at the time of print. This guide or revised editions
can be found on our website for download. No part of this
publication may be reproduced without written permission.
Thanks for choosing the HY Series!
You're excited to get started, we'll keep this brief.

TABLE OF CONTENTS
1. Safety 5
2. Learn About Your Generator 9
2.1 Component Identification 9
2.2 Control Panel 11
2.4 Make Sure You Have Everything 17
2.5 Assembly Instructions 18
3. Pre-Operation Check 22
3.1 Prepare the Air Filter 22
3.2 Check the Oil Level 23
3.3 Check the Fuel Level 25
3.4 Electric Start Battery Connection 26
4. Using Your Generator 27
4.1 Starting your Generator 29
4.2 Using the HG Series with Your Appliances 32
4.3 Charging Automotive Batteries 33
4.4 Folding The Handle 34
5. Stopping the Engine 35
6. Maintenance 36
6.1 Maintenance Schedule 37
6.2 Emission Control System 38
6.3 Changing the Oil 39
6.4 Cleaning The Air-Filter 41
6.5 Spark Plug Service 42
6.6 Spark Arrester Maintenance 43
6.7 Fuel Filter Maintenance 43
6.8 Battery Charger 44
7. Transportation & Storage 45
8. Troubleshooting 48
9. Technical Specifications 50
10. Wiring Diagram 51
11. Appendix 56
12. Limited Warranty 57

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1. SAFETY
DANGER!
Using a generator indoors can kill you in minutes.
Generator exhaust contains carbon monoxide. This is a poison that you
cannot see or smell.
NEVER use inside a home or garage.
WARNING!
This product can expose you to chemicals including carbon monoxide, which
is known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov
1.1 OPERATOR SAFETY
WARNING!
Always perform an oil, fuel and air lter check before starting the engine.
Properly clean and maintain the equipment.
Operate the generator according to instructions for safe and dependable
service.
Before operating the generator, read the user guide carefully. Otherwise,
it may result in personal injuries or equipment damage.
Never run the generator in an enclosed area to avoid harm from exhaust
emissions of a poisonous carbon monoxide gas.
Be careful not to touch the exhaust system, compressor pump or
discharge tubing during operation due to risk of burns.
Pay attention to the warning labels. The engine exhaust system will
become heated during operation and remain hot immediately after the
engine is stopped.
Gasoline is a highly ammable and explosive liquid. Refuel in a well
ventilated area with the engine stopped.
TOXIC FUMES HAZARD. Running engines give off
carbon monoxide, an odourless poisonous gas
that can cause nausea, fainting, or death. Do
not start engine indoors or in an enclosed area,
even if the windows and doors are open.
DANGER TOXIQUE. Faire fonctionner un moteur dégage de
l’oxyde de carbone, un gaz inodore toxique qui peut
provoquer la nausée, évanouissement ou la mort. Ne
démarrer pas le moteur à l’intérieur ou dans une espace clos,
meme si les fenêtres et les portes sont ouvertes.

6HG SERIES
Use of gasoline with an ethanol content greater than 10% can damage
the engine and fuel system and will void the manufacturer’s warranty.
When refueling the generator, keep it away from cigarettes, open ames,
smoke and/or sparks.
Place the generator at least 3 feet away from buildings or other
equipment during operation.
Run the generator on a level surface. Tilting the generator may result in
fuel spills.
Know how to stop the generator quickly and understand operation of
all the controls. Never permit anyone to operate the generator without
proper instructions.
Keep children, pets and machinery with rotating parts away during
operation.
Do not operate the generator in rain or snow.
Do not allow any moisture to come in contact with the generator.
Do not touch the spark plug while the engine is operating or shortly after
the engine has been shut down.
1.2 AC SAFETY
WARNING!
Before connecting the generator to an electrical device or power cord:
Make sure that everything is in proper 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.
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 workers during a power outage, and when the utility power is
restored, the generator may explode or cause res. The generator shall
be connected through transfer equipment that switches all conductors
other than the equipment grounding conductor. The frame of the
generator shall be connected to an approved grounding electrode.
For power outages, permanently installed stationary generators are
better suited for providing backup power to the home. Even a properly

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connected portable generator can become overloaded. This may result in
overheating or stressing the generator components, possibly leading to a
generator failure.
Electrical devices that require a grounded receptacle pin connection will
not function if the receptacle ground pin is not functional.
1.3 MAINTENANCE SAFETY
WARNING!
After any maintenance is performed, wash immediately using soap and
clean water because repeated exposure to lubricant may cause skin
irritation.
Do not clean the lter element with ammable liquids like gasoline
because an explosion may occur.
Turn off the engine before performing any maintenance. Otherwise it can
cause severe personal injury or death.
Allow the generator set to cool down before performing any maintenance.
Always wear safety glasses when cleaning the generator set with air.
Do not clean the generator set with a pressure washer because it can
cause damage to the generator set.
When working with batteries, ventilate the area, use safety glasses, do
not smoke. Always disconnect the negative 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.
Lubricate all exposed metal parts regularly. See ‘Maintenance Schedule’
for the recommended maintenance schedule.

8HG SERIES
1.4 OTHER SAFETY TIPS
WARNING!
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
components on the control panel before each use. Moisture can damage
the generator and can lead to an electric shock.
Generators vibrate in normal use. During and after the use of the
generator, inspect the generator as well as extension cords and power
supply cords connected to it for damage resulting from vibration. Have
damaged items repaired or replaced as necessary. Do not use plugs or
cords that show signs of damage such as broken or cracked insulation or
damaged blades.
If you start to feel sick, dizzy, or weak after the generator has been
running, move to fresh air RIGHT AWAY. See a doctor. You could have
carbon monoxide poisoning.
TOXIC FUMES HAZARD. Running engines give off
carbon monoxide, an odourless poisonous gas
that can cause nausea, fainting, or death. Do
not start engine indoors or in an enclosed area,
even if the windows and doors are open.
DANGER TOXIQUE. Faire fonctionner un moteur dégage de
l’oxyde de carbone, un gaz inodore toxique qui peut
provoquer la nausée, évanouissement ou la mort. Ne
démarrer pas le moteur à l’intérieur ou dans une espace clos,
meme si les fenêtres et les portes sont ouvertes.

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2. LEARN ABOUT YOUR GENERATOR
This section will show you how to identify key parts of your generator. Going over the
terminology below will make sure we’re on the same page.
2.1 COMPONENT IDENTIFICATION
Choke Lever
Fuel Gauge
Gas Cap
Fuel Tank
Front Panel
Recoil Starter
Handle
Fuel Valve
Air Filter
Choke Lever
Handle
Handle Mount
HG4950
HG1500
Fuel Gauge
Fuel Tank
Front Panel
Gas Cap
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter

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HG8750 HG12,000
Choke Lever
Fuel Gauge
Fuel Tank
Front Panel
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter
Gas Cap
Handle
Handle Mount
Choke Lever
Handle
Handle Mount
HG6250 Gas Cap
Fuel Tank
Front Panel
Fuel Gauge
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter

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2.2 CONTROL PANEL
HG1500 Control Panel
1. Power Switch 2. 12V 8.3A DC Receptacle 3. Low Oil Light 4. DC Breaker
5. AC Breaker 6. 120V 11.7A (L5-20)
12
3
4 5
6

12 HG SERIES
HG4950 Control Panel
1. Power Switch 2. 120V 20A (L5-20) 3. AC Breaker 4. Voltage Selector
5. 120/240V 17A (L14-30R) 6. Low Oil Light 7. Master Breaker
1
2 2 3
4
5
6
7

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HG6250 Control Panel
1. Power / Electric Start 2. Hour Meter 3. Low Oil Light 4. 120/240V 21A (L5-30)
5. Master Breaker 6. 120V 20A (L5-20) 7. AC Breaker
1
6 6 6
2
3
45
7 7 7

14 HG SERIES
HG8750 Control Panel
1. Electric Start 2. Hour Meter 3. Master Breaker 4. Power Switch 5. Low Oil Light 6. Battery Charger
7. 120V 29A (L5-30R) 8. 120/240V 29A (L14-30R) 9. 120V 20A Duplex (L5-20)
10. AC Breaker
1
4
56
237 8
9 9 9
10 10 10

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HG12,000 Control Panel
1. Electric Start 2. Hour Meter 3. Master Breaker 4. Power Switch 5. Low Oil Light 6. Battery Charger 7. DC Breaker
8. 12V 8A DC Receptacle 9. 120/240V 37.5A (L14-50R)
10. 120/240V 30A (L14-30R) 11. 120V 20A GFCI (L5-20) 12. AC Breaker 13. AC Breaker 14. AC Breaker
1
4
2
56
7 8
910
12 13 14
11 11
3

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2.3 CONTROL FUNCTIONS
AC Circuit Breakers
While the generator is running, the breakers should be in the ON position.
If the current has exceeded its limits the breaker will automatically pop
out to the OFF position. Reduce the electrical load on the generator and
push the button back to the ON position.
Battery Charging Port (HG8750, HG12,000)
When the generator will be stored for an extended period of time plug the
battery charger into a 120V outlet every two months to top up the battery
and prolong its life.
Ground Terminal
WARNING!
Before using the ground terminal consult a qualified electrician, electrical
inspector, or local agency having jurisdiction for local laws and codes that
apply to the intended use of the generator.
Neutral bonded to frame. The ground terminal is connected to the non-
current carrying metal parts (such as the fuel tank), the frame, and the
ground terminals of the AC outlets.
Hour Meter (HG6250, HG8750, HG12,000)
Always on display shows total run time. Perform maintenance at the
proper intervals according to the ‘Maintenance Schedule’ section of this
manual using the total life run time.
Low Oil Indicator Light
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 reaches an unsafe limit, the oil alert system will automatically
shut down the engine (the power switch remains in the ON position).
If the oil alert system shuts down the engine, the low oil indicator light
(red) will turn on. Check the engine oil level.
Voltage Selector (HG4950)
When the switch is set to 240V, the generator will produce both 120 and
240 volt output but only half the power will be available for any 120 volt
receptacle. Full power is available from the 240 volt receptacle in this
position.
When the voltage selector is set to 120V, full power is available from any
120 volt receptacle.

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Always leave the switch in the 120V position when you don't require 240
volts. Select the voltage before turning on the generator.
2.4 MAKE SURE YOU HAVE EVERYTHING
Make sure your generator has everything listed in the table below.
ITEMS INCLUDED (HG1500) QUANTITY
English user guide 1
French user guide 1
Engine oil 1
Oil funnel 1
Spark plug wrench 1
Metal bar for turning spark plug wrench 1
ITEMS INCLUDED (HG4950 - HG6250 - HG8750 - HG12,000) QUANTITY
English user guide 1
French user guide 1
Engine oil 1
Oil funnel 1
Spark plug wrench 1
Metal bar for turning spark plug wrench 1
Wheel axle 2
Wheels 2
Cotter Pin 2
Foot 2
Foot mounting bracket 2
Foot mounting nut 4
Foot bolt 2
Foot locking nut 2
Handle and rubber grip 1
Handle mounting bracket 1
Handle mounting bracket interior (top) 1
Handle mounting bracket interior (bottom) 1
Handle locking pin and chain 1
Handle mounting bolts 2
Handle mounting nut 2

18 HG SERIES
2.5 ASSEMBLY INSTRUCTIONS
Setup of your HG generator is designed to get you up and running as quickly as
possible. If equipped with your generator, install the wheel, handle, and feet kits, then
continue on to chapter 3.
1. Install the wheel kit and feet as shown below.
2. Install the handle kit by attaching the handle bar to the middle of the
generator frame as shown on following pages.
NOTE
Add engine oil before use.
Install Wheel Kit (HG4950 - HG6250 - HG8750 - HG12,000)

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Install Feet Kit (HG4950 - HG6250 - HG8750 - HG12,000)