Hyundai HG4050 User manual

USER GUIDE

The engine exhaust from this product contains chemicals known
to cause cancer, birth defects or other reproductive harm.
©2018 Hyundai Power Equipment. All Rights Reserved.
Licensed by Hyundai Corporation, Korea.
HG_UG_EN_2018-01-25

Thanks for choosing the HG Series!
You're excited to power up, so we'll keep this brief. Let's get started!

THIS PRODUCT MEETS ALL CERTIFICATION REQUIREMENTS FROM:
MASTER CONTRACT: 230179 REPORT: 70057567 PROJECT: 70108715

WE'VE GOT YOU COVERED!
Contact us by phone at 1-877-528-3772,
email us at [e-mail], or visit us online
at www.hyundaipower.ca if you have any questions
SAVE THESE INSTRUCTIONS
This user guide contains important instructions for your
product, that should be followed during installation and
maintenance of the generator.
This user guide covers the safety, operation and
maintenance procedures for the HG1500, HG4050,
HG6850, HG8750, and HG10,000.
All information in this publication is based on the latest
product information available at the time of print.
No part of this publication may be reproduced
without written permission.
Visit www.hyundaipower.ca for user guide
updates and operation notices.

WARRANTY INFORMATION
YOU CAN REGISTER EASILY USING OUR ONLINE FORM:
www.hyundaipower.ca/warranty.php
See ‘Limited Warranty’ for more information.
Product registration will allow you to request warranty support in
the future. Product registration is required for all product support
and warranty coverage.
Warranty support, operation assistance and product support
is provided by Midland Power Inc., a licensed manufacturer of
Hyundai Power Equipment. Please contact us directly for any
warranty service questions.
1-877-528-3772
[e-mail]
www.hyundaipower.ca

HG SERIES
TABLE OF CONTENTS
1. Safety 1
2. Learn About Your Generator 4
2.1 Component Identification 4
2.2 Control Panel 6
2.4 Make Sure You Have Everything 12
2.5 Assembly Instructions 13
3. Pre-Operation Check 17
3.1 Prepare the Air Filter 17
3.2 Check the Oil Level 18
3.3 Check the Fuel Level 20
3.4 Electric Start Battery Connection 21
4. Using Your Generator 22
4.1 Starting your Generator 23
4.2 Using the HG Series with Your Appliances 26
4.3 Charging Automotive Batteries 27
4.4 Folding The Handle 28
5. Stopping the Engine 29
6. Maintenance 30
6.1 Maintenance Schedule 31
6.2 Emission Control System 32
6.3 Changing the Oil 33
6.4 Cleaning The Air-Filter 35
6.5 Spark Plug Service 36
6.6 Spark Arrester Maintenance 37
6.7 Fuel Filter Maintenance 37
6.8 Battery Charger 38
7. Transportation & Storage 39
8. Troubleshooting 42
9. Technical Specifications 44
10. Wiring Diagram 45
11. Appendix 50
12. Limited Warranty 51

1
1. SAFETY
DANGER!
USING A GENERATOR INDOORS CAN KILL YOU IN MINUTES.
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS
KNOWN TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE
HARM.
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.
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.

2HG SERIES
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
connected portable generator can become overloaded. This may result
in overheating or stressing the generator components, possibly leading
to a generator failure.
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

3
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.
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.

4HG SERIES
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
Fuel Tank
Front Panel
Gas Cap
Recoil Starter
Handle
Fuel Valve
Air Filter
Dipstick

5
Choke Lever
Handle
Handle Mount
Fuel Gauge
Fuel Tank
Front Panel
Gas Cap
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter
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
Fuel Gauge
Fuel Tank
Front Panel
Gas Cap
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter
Choke Lever
Fuel Gauge
Fuel Tank
Front Panel
Dipstick
Recoil Starter
Handle
Fuel Valve
Air Filter
Gas Cap
Handle
Handle Mount

6HG SERIES
2.2 CONTROL PANEL
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.
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.
Digital Multi-Display (HG8750, HG10,000)
Digital display shows the voltage, frequency, session run time, and total
run time. Perform maintenance at the proper intervals according to the
‘Maintenance Schedule’ section of this manual using the total life run
time.
Battery Charging Port (HG8750, HG10,000)
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.
Voltage Selector (HG4050)
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.
Always leave the switch in the 120V position when you don't require 240
volts. Select the voltage before turning on the generator.

7
HG 1500 Control Panel
Power
Switch
DC Breaker
Low Oil
Light
120V/8.3A
AC Outlet
12V/8A
DC Outlet
AC Breaker

8HG SERIES
Power
Switch
120/240V
Switch
Master Breaker
Switch
Low Oil
Light
120/240V 30A
TWIST-
LOCK
120V/20A
AC Outlet AC Breaker
HG 4050 Control Panel

9
Power
Switch
Master Breaker
Switch
Low Oil
Light
120V 30A
TWISTLOCK
120/240V 30/29.1A
TWISTLOCK
120V 20A
AC Outlet
AC Breaker
HG 6850 Control Panel

10 HG SERIES
Electric
Start
Digital
Display
Battery
Charger
Master
Breaker
120V 30A
TWISTLOCK
120/240V 30/29.1A
TWISTLOCK
120V 20A
AC Outlet
Power
Switch
Low Oil
Light
AC Breaker
HG 8750 Control Panel

11
Electric
Start
Digital
Display
Battery
Charger
Master Breaker
Switch
120/240V 50/37.5A
AC Outlet
120V 30/A
TWISTLOCK
120/240V 30/29.1A
TWISTLOCK
120V 20A
AC Outlets
Power
Switch
Low Oil
Light
AC Breaker
HG 10,000 Control Panel

12 HG SERIES
2.4 MAKE SURE YOU HAVE EVERYTHING
Make sure your generator has everything listed in the table below.
ITEMS INCLUDED (HG4050 - HG6850 - HG8750 - HG10,000) 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
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

13
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
3. Add engine oil before use.
Install Wheel Kit (HG4050 - HG6850 - HG8750 - HG10,000)