Hyundai HHD SERIES User manual

HHD SERIES
USER GUIDE

The engine exhaust from this product contains chemicals known
to cause cancer, birth defects or other reproductive harm.
©2015 Hyundai Power Equipment. All Rights Reserved.
Licensed by Hyundai Corporation, Korea.
HHD_UG_EN_2015-06-25

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

THIS PRODUCT MEETS ALL
CERTIFICATION REQUIREMENTS FROM:

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 mainteneance
of the generator and batteries.
This user guide covers the safety, operation and
maintenance procedures for the HHD3500, HHD6250,
HHD7250, HHD3500CA, HHD6250CA and
HHD7250CA. For CARB certified units (CA) follow non-
CARB certified instuctions.
All information in this publication is based on the latest
product information available at the time of print.
Visit www.hyundaipower.ca for user guide updates and
operation notices.
No part of this publication may be reproduced without
written permission.

WARRANTY INFORMATION
YOU CAN REGISTER EASILY USING OUR ONLINE FORM:
www.hyundaipower.ca/warranty.php
See chapter 9 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

CONTENTS PAGE
Safety First 8
Safety while using your generator 8
Understanding AC safety 9
Safety while maintaining your generator 9
Other safety tips 10
Learn About Your Generator 11
Identification of componants 11
Label Placement 13
Making sure you have everything 15
Assembly instructions 16
Setting Up Your Generator 18
Checking the oil level 18
Checking the fuel level 19
Checking the air filter 20
Electric start battery connection 21
Using Your Generator 22
Starting your generator 22
Using your generator with appliances 24
Stopping your generator 25
Maintaining Your Generator 26
Maintainance Schedule 26
General inspection tips 27
Cleaning the air filter 27
Changing the engine oil 28
Replacing and cleaning the spark plug 29
Handling and storage 30
Troubleshooting 32
Specifications 33
Wiring Diagram 34
Learn About Your Warranty 37

8
Chapter 1 — Safety
Playing it safe when working with power equipment is always a good idea. Here are some
important precautions to make sure you stay safe.
1.1 Safety while Operating Your Generator
• Always perform an oil, fuel and air filter 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.
• The engine exhaust from this product contains chemicals known to cause
cancer, birth defects or other reproductive harm.
• 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 flammable and explosive liquid. Refuel in a well
ventilated area with the engine stopped.
• This portable generator is not for use with gasoline/ethanol blends with
over 15% ethanol.
• When refueling the generator, keep it away from cigarettes, open flames,
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

9HHD SERIES
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 Understanding AC Safety
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 qualified 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 fires. 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 Safety while Maintaining Your Generator
• 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 filter element with flammable liquids like gasoline because

10
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.
• Before working with batteries, ventilate the area, wear safety glasses, do
not smoke and always disconnect the negative cable first and reconnect it
last.
• Use rubber gloves when coming into contact with engine oil.
• Always stop the generator set before removing the oil filler cap.
• Only qualified maintenance personnel with knowledge of fuels, electricity,
and machinery hazards should perform maintenance procedures.
• Lubricate all exposed metal parts regularly. See chapter 5.1 for
maintenance schedule.
1.4 Other Safety Tips
• 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.

11 HHD SERIES
Exhaust cover Spark plug Carburetor
Fuel tankFuel gaugeChoke leverAir filter
Front panelOil DipstickRecoil starter handleFuel valve
Chapter 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 Identification of Components

12
Low oil light Ground terminal Master breaker
switch
120/240V twistlock
receptacle
Engine switch Voltage selector switch120V AC Receptacles
HHD 3500
Engine switch Master breaker switch120V AC Receptacle
HHD 6250
Low oil light Ground terminal 120/240V AC
twistlock receptacle
Ground terminal
HHD 7250
Engine switch Master breaker switch120V AC Receptacle)
Low oil light Ground terminal 120/240V AC
twistlock receptacle
Ground terminal

13 HHD SERIES
FUEL
ON OFF
CHOKE
OPEN CLOSED
(HHD7250 only)
2.1 Label Placement

14

15 HHD SERIES
2.2 Make Sure You Have Everything
Tool Kit Item Quantity
Ethanol ShieldTM 1
Spark Plug Wrench 1
Funnel 1
HHD3500
Part Name Quantity
Cushion 2
Hand Sleeve 1
Bolt M6 x 10 2
Wheel Axle 1
Wheel 2
Bolt M8 x 16 8
Nut M8 11
Washer 2
Split Pin 2
Axle Holder 1
Stand 2
Connecting Block 1
Handle 1
Bolt M8 x 45 3
HHD6250/HHD7250
Part Name Quantity
Cushion 2
Hand Sleeve 2
Bolt M6 x 10 2
Wheel Axle 1
Wheel 2
Bolt M8 x 16 8
Nut M8 14
Washer 2
Split Pin 2
Axle Holder 1
Stand 2
Connecting Block 2
Handle 2
Bolt M8 x 45 6

16
2.3 Assembly Instructions
For HHD3500
1. Attach the handle bar to the upper frame of the generator. Tighten the bolts (14)
and nuts (7) to the upper frame of the generator.
2. Attach the two peg stands to the bottom of the frame of the generator. Tighten the
two bolts (6) and two nuts (7) to the lower frame of the generator.
3. Place the two wheels (5) on the wheel axle (4) and then secure the wheels using the
washer (8) and nut cap to the wheel axle (4).
4. Attach the wheel axle (4) to the bottom of the generator frame. Align the bolts (6)
with the holes on the bottom of the generator and fasten tightly with the nuts (7)
provided.

17 HHD SERIES
For HHD6250 and HHD7250
1. Attach the handle bars to the middle of the generator frame where specified in (fig-
ure 4.1). Tighten the bolts (14) and nuts (7) to the upper frame of the generator.
2. Attach the two peg stands at the bottom of the frame of the generator. Tighten the
two bolts (6) and two nuts (7) to the lower frame of the generator.
3. Place the two wheels (5) on the wheel axle (4) and then secure the wheels (8) using
the washer (8) and nut cap to the wheel axle (4).
4. Attach the wheel axle (4) to the bottom of the generator frame. Align the bolts (6)
with the holes on the bottom of the generator and fasten tightly with the nuts (7)
provided.

18
Chapter 3 — Setting Up Your Generator
Setup should be done every time you start up your generator, these quick checks will
ensure you get the most out of your generator.
Exhaust gas contains poisonous carbon monoxide. Never run the
generator in an enclosed area. Be sure to provide adequate ventilation.
Operate the generator on a level surface. If the generator is tilted, fuel
spillage may result. Keep away from rotating parts while the generator is
running. The generator is air-cooled and may be damaged if ventilation
is inadequate.
3.1 Checking the Oil Level
1. Ensure the generator is on a level surface.
2. Inspect engine oil:
• Take out the oil filler cap and clean the dipstick.
• Check the oil level by reinserting the oil filler cap without rotating it. Remove
the oil filler cap and examine the oil level. If the oil level is at or below the
minimum oil level, refill the oil to the maximum oil level mark. (10W30)
Reinsert the oil filler cap and tighten securely. (Refer to figure below).
Engine oil is a major factor affecting engine performance and service
life. Non-detergent or vegetable oils are not recommended.
Maximum Oil Level
Minimum Oil Level
Empty
Full

19 HHD SERIES
3.2 Checking the Fuel Level
1. Check the fuel level by reading the gauge or removing the fuel tank cap to
visually check the level.
2. Refuel if level is too low. Tighten the fuel tank cap securely after refilling (Refer
to Figure below).
Gasoline is highly flammable and explosive under certain conditions.
Refuel in a well-ventilated area with the engine stopped. Do not smoke
or allow open flames or sparks in the area where the generator is being
refueled or where gasoline is stored. Do not overfill the tank. Be careful
not to spill fuel when refueling. Wipe up any spilled gasoline and let the
area dry before starting the engine.
Gasoline substitutes such as gasohol are not recommended. They may
be harmful to the fuel system components.
Maximum Oil Level
Minimum Oil Level
Empty
Full

20
3.3 Checking the Air Filter
1. Loosen the knob and remove the air filter cover. Remove the air filter element
and observe for cleanliness.
2. Clean the air filter element with soap and water or solvent. Squeeze dry and
then soak in clean engine oil.
3. Squeeze out all excess oil and reinstall. Replace the element if it is damaged.
Check the air filter using the maintenance schedule. Always inspect air
filter before using the generator. Clean Air Filter every 3 months or after
50hrs of operation according Section 5.4 Cleaning the Air Filter.
Filter Cap
Filter
Knobs
Negative terminal
(Black)
Positive Terminal
(Red)