Part Number 7115316 / ENGLISH REV F - 07/22/2021
Models covered: SCGH5500 / SCGH8500 / SCGH8500E
SAVE THIS MANUAL FOR FUTURE REFERENCE
USE AND CARE MANUAL
GENERATOR
READ THIS MANUAL CAREFULLY BEFORE OPERATION
Failure to follow the instructions and safety precautions in this manual can result
in property damage, serious injury and/or death.
NOTE: Photographs and line drawings used in this manual are for
reference only and may not represent your specic model.
Page II REV F - 07/22/2021Part Number 7115316 / ENGLISH
NOTES
This product and the engine exhaust can expose you to chemicals which are known to
the state of California to cause cancer, birth defects, or other reproductive harm. For more
information on California Proposition 65, go to www.P65Warnings.ca.gov.
CALIFORNIA PROPOSITION 65 WARNING
POLYCYCLIC AROMATIC HYDROCARBON WARNING
The air lter element and air box assembly may contain polycyclic aromatic hydrocarbons
(PAHs). Some PAHs may cause cancer. To avoid exposure to PAHs, wear gloves when
performing air lter maintenance.
Page 1 REV F - 07/22/2021Part Number 7115316 / ENGLISH
SAVE THIS MANUAL FOR FUTURE USE
Write down the model number, serial number, and purchase date of this product in the spaces
provided below then keep this manual with the purchase receipt(s) for future reference.
Keep this manual for future reference. This manual should be considered a permanent part
of the product and stay with it. This manual should be available to anyone operating the
product(s) it covers. This manual should remain with the product(s) it covers if sold to a new
owner. If the manual becomes damaged, lost, or otherwise unusable, you may download
a new copy from the product pages at www.simpsoncleaning.com or contact customer
support by calling 1-877-362-4271.
Model Data Decals
Model Number:
Serial Number:
Purchase Date:
Page 2 REV F - 07/22/2021Part Number 7115316 / ENGLISH
TABLE OF CONTENTS
SAFETY INSTRUCTIONS ...............................................................4
Hazard Alert Symbols .......................................................................................................4
Emission Information ........................................................................................................5
Special Requirements .......................................................................................................5
DISCLAIMERS .................................................................................5
ASSEMBLY ......................................................................................6
Unpacking .........................................................................................................................6
Installing the Wheels .........................................................................................................6
Assembling and Installing the Support Bracket ................................................................7
Connecting Battery (Electric Start Models Only)...............................................................8
COMPONENT LOCATION ...............................................................9
CONTROL PANELS ......................................................................11
SCGH5500......................................................................................................................11
SCGH8500......................................................................................................................11
SCGH8500E ...................................................................................................................11
HOUR METER ...............................................................................12
Hour Meter ......................................................................................................................12
IDLE CONTROL .............................................................................12
Idle Control......................................................................................................................12
OPERATING CHECKLIST .............................................................13
Location ..........................................................................................................................13
Operating Conditions ......................................................................................................14
Grounding .......................................................................................................................15
Connecting Generator to the Electrical System of a Building .........................................15
Checking Fuel .................................................................................................................16
STARTING .....................................................................................18
Starting the Generator ....................................................................................................18
CONNECTING DEVICES ...............................................................20
Connecting Electrical Devices ........................................................................................20
Generator Load Capacity ................................................................................................20
Generator Load Chart .....................................................................................................21
Page 3 REV F - 07/22/2021Part Number 7115316 / ENGLISH
SHUTTING OFF GENERATOR .....................................................22
MAINTENANCE .............................................................................23
Generator Maintenance ..................................................................................................23
Engine Maintenance .......................................................................................................23
Cleaning ..........................................................................................................................23
Battery Maintenance (Electric Start Models Only) ..........................................................24
Engine Idle Adjustment ...................................................................................................24
TROUBLESHOOTING ...................................................................25
Generator Troubleshooting Chart ...................................................................................25
Engine Troubleshooting Chart ........................................................................................25
STORAGE AND TRANSPORTATION ...........................................26
Storing for Two Months or Less ......................................................................................26
Storing for More Than Two Months .................................................................................27
Transportation .................................................................................................................27
WIRING DIAGRAMS ......................................................................28
SCGH5500......................................................................................................................28
SCGH8500......................................................................................................................29
SCGH8500E ...................................................................................................................30
SPECIFICATIONS ..........................................................................31
Model Number: SCGH5500 / Item Number: 70053 ........................................................31
Model Number: SCGH8500 / Item Number: 70054 ........................................................31
Model Number: SCGH8500E / Item Number: 70055 ......................................................32
Page 4 REV F - 07/22/2021Part Number 7115316 / ENGLISH
This manual contains important safety information and instructions. Do not operate
this product until you have read, and completely understand all safety, operation, and
maintenance instructions listed in this manual. Failure to follow the information contained
in this manual will result in property damage, injury, and/or death.
NOTE: The warnings and precautions discussed in this manual cannot cover all conditions
and situations that may occur. The operator must understand awareness and caution are
factors which cannot be built into this product and so must be exercised by the operator.
READ THIS MANUAL BEFORE OPERATING
ADDITIONAL INSTRUCTIONS
Be sure to understand the safety symbols and denitions listed below. Each symbol
contains one of four words: DANGER, WARNING, CAUTION, NOTICE, indicating dierent
levels of hazard severity. These symbols are used throughout this manual and are followed
information about a specic hazard, the consequences of the hazard, and instructions on
how to avoid the hazard. Failure to heed these symbols and follow the instructions provided
with them will result in property damage, injury, and/or death.
Hazard Alert Symbols
Indicates an imminently dangerous situation, which if not
avoided, will result in property damage, serious injury, and/
or death.
Indicates a potentially hazardous situation, which if not
avoided, could result in property damage, serious injury, and/
or death.
Indicates a hazardous situation, which if not avoided, could
result in property damage and/or minor to moderate injury.
Indicates information considered important, but not directly
hazard related.
SAFETY INSTRUCTIONS
Along with this manual, be sure to read any additional instructions provided both on and
with the product, attached equipment, accessories, and the engine powering the product.
Pay careful attention to all additional safety rules and instructions on proper startup,
operation, and shutdown procedures. Always use any recommended protective apparel
that may be needed to operate the equipment safely.
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Emission Information
The Environmental Protection Agency (and California Air Resource Board of generators
certied to CA standards) requires that this generator comply with exhaust and evaporative
emission standards. Locate the emissions compliance decal on the engine to determine
what standards the generator meets and which warranty applies. This generator is certied
to operate on gasoline.
The emission control system includes the following components (if equipped):
● All information in this publication was based on the latest product information available
at the time of printing. The FNA Group reserves the right to change, alter, and/or
improve the product and this document at any time, without notice, and without incurring
any obligation.
● The pictures and gures in this manual should be used for reference only. There may be
dierences between the pictures and gures and the physical product.
● This generator may be equipped with a spark arrestor muer. If equipped, the spark
arrestor must be maintained in eective working order by the owner/operator. In the
State of California, a spark arrestor is required by law (Section 4442 of the California
Public Resources Code). Other states may have similar laws. Federal laws apply on
federal lands.
DISCLAIMERS
Air Induction System
● Intake pipe or manifold
● Air cleaner
Fuel System
● Carburetor
● Fuel tank and cap
● Fuel lines
● Evaporative vent lines
● Carbon canister
Ignition System
● Spark plug
● Ignition module
Exhaust System
● Exhaust manifold
● Muer
● Pulsed Air valve
● Catalyst
Special Requirements
● In some areas, generators are required to be registered with local utility companies.
● If the generator is used at a construction site, there may be additional regulations which
must be observed.
● There may be additional federal and/or state Occupational Safety and Health
Administration (OSHA) regulations, local codes, or ordinances that apply to the intended
use of the generator. Please consult a qualied electrician, electrical inspector, or the
local agency having jurisdiction in your area.
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1
2
3
4
ASSEMBLY
Unpacking
1. Place the shipping carton on a solid, at surface.
2. Carefully cut the top of the carton open.
3. Carefully cut each corner of the carton from top to bottom.
4. Lay each side of the carton at on the ground.
5. Remove everything from the carton.
Follow the steps outlined in this section to unpack and assemble your generator. If you have
any questions regarding the unpacking or assembly of your generator, please have your
model number and serial number ready, then contact customer support at 1-877-362-4271
or email [email protected].
Installing the Wheels
Slide the axle through the wheel, the rst washer, frame mounting hole, and the second
washer. Then insert the clip through the hole in the axle to secure the assembly. This
process must be done on both sides of the generator.
NOTE: Generator wheels are not intended for over-the-road use.
1. Axle
2. Wheel
3. Washers
4. Clip
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Assembling and Installing the Support Bracket
Assembling bracket: If rubber feet are not already installed on the onto the support bracket,
slide both M6x18 bolts through the rubber feet then through the support bracket, and tighten
M6 nuts onto the bolts to secure the assemblies.
Installing assembled bracket: Slide both M8x16 bolts through the support bracket and
frame, then tighten the M8 nuts onto the bolts to secure the assembly.
2
1
3
4
6
5
1. M6x18 bolts
2. Rubber feet
3. Support bracket
4. M6 nuts
5. M8x16 bolts
6. M8 nuts
Page 8 REV F - 07/22/2021Part Number 7115316 / ENGLISH
Connecting Battery (Electric Start Models Only)
NOTE: A battery is not included with the generator. A 12-volt, 14-amp, garden tractor style
battery is recommended. Please reference the engine manual for specic battery cranking
amp requirements. To connect the battery, you will need to install the battery cables by
following the steps outlined below. For battery location see the COMPONENT LOCATION
section of this manual.
ACID
Batteries contain sulfuric acid. Sulfuric acid is highly corrosive. Contact with skin can
cause severe burns; contact with eyes can cause permanent blindness; and accidental
ingestion can cause death. To avoid contact with sulfuric acid, always wear protective
equipment when handling batteries. If acid contacts skin, ush are with cool water for
10-15 minutes. Immediately remove contaminated clothing and thoroughly wash the
underlying skin.
2
1
1. Remove the retaining nut on the battery box* (A), remove the battery retainer (B), place
the battery in the tray (C), then replace the battery retainer and nut.
2. Remove battery terminal covers if applicable.
3. Connect black cable (1) to the negative (-) battery terminal with supplied bolt and nut.
4. Connect red cable (2) to the positive (+) battery terminal with supplied bolt and nut.
5. Make sure both the positive and negative connections are secure.
6. Slide the rubber boots over both terminals and connection hardware.
1. Negative (-) battery cable (black)
2. Positive (+) battery cable (red)
A B
C
*See the Component Location section
of this manual for battery box location.
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6
4
2
3
5
1
9
7
11
10
1. Frame
2. Fuel level indicator
3. Fuel tank cap
4. Fuel tank
5. Handle
6. Air lter box
7. EVAP / carbon canister
8. Spark plug
9. Engine cylinder head
10. Wheels
11. Exhaust heat shield
COMPONENT LOCATION
8
NOTE: Line drawings used in this manual may not represent your specic model.
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14
16
15
12
19
18
17
20
12. Handle stop pin
13. Choke
14. Fuel valve
15. Starter recoil
16. Support bracket
17. Engine oil drain plug
18. Oil dipstick
19. Battery tray (electric start models only)
20. Control panel
21. Frame ground terminal
22. Spark arrestor (if equipped)
22
21
13
NOTE: Line drawings used in this manual may not represent your specic model.
Page 11 REV F - 07/22/2021Part Number 7115316 / ENGLISH
1. Engine control switch
2. Idle control switch
3. Hour meter
4. Main breakers SCGH5500 17.5 amp, SCGH8500 & SCGH8500E 30 amp
5. Circuit breakers 20 amp
6. 120v AC, single phase, 60hz duplex receptacle (5-20R)
7. 120v AC, single phase, 60hz receptacle (L5-30R)
8. Ground terminal
9. 120v / 240v AC, single phase, 60hz receptacle (L14-30R)
SCGH5500
SCGH8500
CONTROL PANELS
SCGH8500E
8
8
8
9
9
9
7
7
7
4
4
4
1
1
1
2
2
2
6
6
6
3
3
3
5
5
Page 12 REV F - 07/22/2021Part Number 7115316 / ENGLISH
Hour Meter
The hour meter keeps track of the time the generator is running. The hour glass icon ashes
when the engine is running to signify the meter is tracking the hours of operation. The
digital time display shows the recorded hours of operation. For hour meter location see the
COMPONENT LOCATION section of this manual.
Idle Control
The idle control feature automatically reduces the engine speed when there is no electric
load on the generator. The lower engine idle speed saves fuel, reduces engine wear, and
lowers noise. The engine speed will automatically increase when an electric load is applied
to the generator.
To activate the idle control feature, turn the idle control switch on. To deactivate the idle control
feature, turn the idle control switch o. For idle control switch location, see the CONTROL
PANELS section in this manual. The idle control feature should be o before starting or
stopping the generator. Always allow the engine to warm up and the idle to stabilize before
turning the idle control switch on, or placing an electrical load on the generator.
21
1. Hour glass icon
2. Digital time display
HOUR METER
IDLE CONTROL
OFF
IDLE CONTROL SWITCH
ON
TOXIC FUMES
Engine exhaust contains carbon monoxide, an odorless, colorless, poisonous gas.
Running an engine indoors will kill you in minutes. Never use this product inside a house,
garage, or any other kind of enclosure even if doors and windows are open. Run the
engine outside at least twenty (20) feet or six (6) meters away from windows, doors, and
vents. Carefully consider wind direction and air currents when using this product outside
to avoid breathing in engine exhaust. Always use a carbon monoxide detector in any
occupied buildings near the running engine.
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OPERATING CHECKLIST
Location
Only use the generator outside in a well-ventilated area and always carefully consider wind
and air currents when running. Place the generator on a level surface before any operation
and provide two (2) feet clearance on all sides of the engine while operating.
● Never use the generator inside a house, garage, or any other kind of enclosure, even if
doors and windows are open.
● Install a carbon monoxide detector in any occupied buildings near the running engine.
● If you experience headache, nausea, dizziness, sleepiness, or weakness while the
generator is running, move to fresh air and seek medical attention immediately.
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INSPECT BEFORE OPERATING
MOVING PARTS
This product has many parts that move at high speeds. Moving parts can cause crushing
injuries, broken bones, severe lacerations, and/or traumatic amputations. To prevent
injury, never place ngers, hands, feet, or other body parts near running engine. Never
operate product with covers, shrouds, or other guards removed. Do not wear loose-tting
clothing, dangling drawstrings, or any other hanging items that could become entangled
in moving parts while operating. Tie up long hair and remove jewelry before operating.
Failure to inspect this product before use could result in a hazardous situation resulting
in product damage serious injury and/or death. To avoid these hazards, inspect the
generator before each use. Check for loose or damaged parts, signs of oil or fuel leaks,
missing guards, plugged cooling vents, or any other condition that may aect proper
operation. Repair or replace all damaged or defective parts and keep all safety guards in
place and in proper working order before using the generator.
UNTRAINED OPERATION
Untrained persons, young children, and pets can be seriously injured or killed if allowed
to incorrectly operate or play with a running generator. Be sure anyone operating the
generator receives proper instructions, understands safe operation, and has read the
owner’s manual before operating this product. Do not let children operate the generator
without parental supervision. Keep young children and pets away from the generator
while it is running. Always turn the generator o before leaving the area.
Operating Conditions
Before starting engine, remove any excessive dirt and debris from cooling vents, exhaust,
and starter recoil areas. Then, check for loose or damaged parts, oil or fuel leaks, and/
or any other condition that may aect proper operation. Repair or replace all damaged or
defective parts immediately. Always keep all safety guards in place and in proper working
order. For safety reasons, the manufacturer recommends all maintenance and repairs be
performed by an authorized service center. Never move or tip the generator while operating.
Use generator only for its intended purpose. If you have questions about the proper use
of your generator, please contact customer support at 1-877-362-4271 or cservice@fna-
group.com.
HOT SURFACES
A running engine produces heat. The surfaces of the engine, related components, and
engine exhaust gas get hot enough to cause mild moderate burns or ignite materials
on contact. To avoid burns, do not touch engine surfaces or exhaust gases while
operating and allow engine to cool completely before moving, touching, or performing
any maintenance. To avoid a re, keep all ammable materials at least ve feet away
from all sides of the product.
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Grounding
Grounding the generator helps prevent electrical shock if a ground fault condition develops
in the generator or in connected electrical devices. Proper grounding also helps dissipate
static electricity, which often builds up in ungrounded devices. Grounding a generator
with a wheel kit installed is especially important. The generators covered in this manual
have two ground terminals, one on the frame and one on the control panels. For ground
terminal location(s) see the COMPONENT LOCATION section of this manual. It is strongly
recommend that you refer to NEC 250.34 (sections A,B, and C) and/or consult with a local
electrician for grounding requirements in your area before operating the generator.
GROUNDING
ELECTROCUTION
Do not connect devices with worn, frayed, bare, or otherwise damaged electrical cords
to the generator. Electrical shorts caused by damaged wiring can damage the generator
and touching live damaged electrical cords or bare wires will cause serious injury or
death. To avoid these electrocution hazards, inspect all electrical cords before using them
and do not use any cords that are damaged or showing bare wires.
Failure to properly ground your generator will create an electrical shock hazard that
could result in severe injury or death. To prevent an electric shock hazard, be sure to
provide the correct ground for the desired use of the generator per the National Electric
Code (NEC) 250.3 (sections A,B,and C) or consult with a local electrician to learn the
appropriate grounding requirements.
Connecting Generator to the Electrical System of a Building
Do not attempt to backfeed power into your house from the generator. Backfeeding is trying
to power your home by plugging the generator into a wall outlet. Backfeeding can damage
electrical devices in your home, start an electrical re, and cause severe injury or death to
utility workers and others on your electrical grid.
Using a transfer switch is recommended when connecting a generator directly to a building’s
electrical system. Connections for a portable generator to a building’s electrical system
must be made by a qualied electrician and in strict compliance with all national and local
electrical codes and laws.
Backfeeding can damage electrical devices in your home, start an electrical re, and
may cause severe injury or death to utility workers and others on your electrical grid.
To prevent backfeeding, do not plug the generator into your home’s outlets and have a
qualied electrician install the generator if used as a back up power source.
BACKFEEDING
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Gasoline vapor can build up inside the fuel tank creating pressure. This pressure may
increase when the engine is hot from running. Opening the fuel tank under pressure can
cause rapid escape of ammable vapors and possible fuel spills that may ignite from
contact with hot engine surfaces resulting in burn hazard. To avoid rapidly escaping fuel
vapor, always allow the engine to cool for at least two (2) minutes before removing fuel
cap and loosen the fuel cap slowly to relieve any pressure in the tank.
FUEL TANK PRESSURE
Checking Fuel
REFUELING
Gasoline is highly ammable and gasoline vapors are extremely explosive. Fire and
explosions can cause severe burns and/or death. Keep gasoline away from ames,
sparks, and other ignition sources. Refuel outdoors in a well-ventilated area with the
engine stopped and cool. Wipe up any spilled gasoline and allow engine to dry before
starting. Keep a re extinguisher handy while refueling. Do not operate engine with leaks
in the fuel system. Do not store gasoline near other ammable materials.
Old gasoline can create deposits that clog fuel systems causing hard starting and poor
performance. Damage caused by old fuel is not covered by warranty. To minimize
deposits, avoid old fuel related performance issues, and prevent costly repair work, do
not use gasoline that is older than 30 days.
OLD FUEL
Using gasoline with an alcohol blend greater than 10% (E10) will damage the engine.
Damage caused by using an alcohol blend of 15% (E15), 85% (E85), or any other alcohol
blend higher than 10% (E10) is not covered under warranty. To avoid engine damage
caused by an alcohol blend that is too high, use gasoline with 10% (E10) alcohol or less.
ALCOHOL BLENDS
The use of fuel system cleaning additives can damage the engine and fuel systems.
Damage caused by the use of fuel system cleaning additives is not covered by warranty.
To avoid engine and fuel system damage, do not use any fuel system cleaning additives.
FUEL ADDITIVES
Page 17 REV F - 07/22/2021Part Number 7115316 / ENGLISH
DO NOT OVERFILL FUEL TANK
Overlling the fuel tank can result in carbon canister damage (if equipped), poor engine
performance, and void the warranty. To avoid damaging the carbon canister, poor engine
performance, and voiding the warranty, do not ll the fuel tank above the maximum level.
1. Check fuel with generator on a level surface with the engine o.
2. Read fuel gauge and ll fuel tank if needed. For fuel gage location see the COMPONENT
LOCATION section of this manual.
3. Do not use gasoline that is older than 30 days. Use only clean and fresh regular
unleaded gasoline with a minimum octane rating of 87. Do not mix oil with gasoline. Do
not use gasoline that contains more than 10% ethyl alcohol. E15, E20, and E85 are not
approved fuels and should not be used.
4. Do not to ll the fuel tank above the maximum fuel level to allow room for fuel expansion.
For fuel capacity see the SPECIFICATIONS section of this manual.
Maximum Fuel Level
It is important to prevent gum deposits from forming in essential fuel system parts, such
as the carburetor, fuel lter, fuel hose or tank during storage. Alcohol-blended fuels (also
called gasohol, ethanol, or methanol) attract moisture, which leads to separation and
formation of acids during storage. Acidic fuel and gum deposits can damage the engine’s
fuel system while in storage. Eects of old, stale, or contaminated fuel are not covered
under warranty.
NOTE: Using a fuel stabilizer when storing gasoline will help prevent problems related
to ethanol alcohol in outdoor power equipment engines. Always follow the instructions
provided by the fuel stabilizer manufacturer to mix and use correctly.
GASOLINE STORAGE
OPENCLOSED
OFF
Page 18 REV F - 07/22/2021Part Number 7115316 / ENGLISH
ON
STARTING
Starting the Generator
1. Follow the steps in the OPERATING CHECKLIST section of this manual.
2. Make sure there are no devices plugged into the generator outlets.
3. Turn fuel valve to the ON position. For fuel valve location see the COMPONENT
LOCATION section of this manual.
4. Adjust choke as needed. For choke location see the COMPONENT LOCATION section
of this manual.
NOTE: The starting position of the choke will vary depending on the engine temperature. If
starting a cold engine, move the choke lever towards the closed position. If starting a warm
engine, move the choke lever towards the open position.
Attempting to start the engine incorrectly or using the generator incorrectly can result in
engine and/or generator damage, and may cause serious injury or death. To avoid engine
and/or generator damage and serious injury or death be sure to read, understand, and
follow the steps outlined in the OPERATING CHECKLIST section of this manual before
starting the engine, and follow all the guidelines for proper use of the generator.
OPERATING CHECKLIST
5. Turn the engine idle control switch to the o position.
ON
START
RUN
OPENCLOSED
Page 19 REV F - 07/22/2021Part Number 7115316 / ENGLISH
2. Pull the starter recoil.
1. Turn the engine control switch to
the ON position.
1. Use key to turn the engine control
switch to the START position then
release key when engine starts.
6. Start the engine.
NOTE: This manual covers generator models that feature both electric and manual start.
Refer to the CONTROL PANELS section of this manual to determine if your model is electric
or manual start, then follow the sequence below that is relevant to your model.
Electric Start Models
Manual Start Models
7. After the engine is running, move the choke lever towards the open position.
8. Allow the engine to warm up and the idle to stabilize before connecting any devices or
turning the idle control switch on.
2. The engine control switch stays in
the RUN position during operation.
RAPID RETRACTION
Rapid retraction (also known as kickback) of the engine recoil starter cord will pull your
hand and arm towards the engine faster than you can let go of the handle resulting in
sprains, broken bones, lacerations, and/or traumatic amputations. Kickback is caused
by damage to the engine crankshaft key, compression release failure, and/or improper
starting techniques. To avoid kickback follow the appropriate maintenance schedule,
starting instructions, and have repair work done by an authorized service center.
Page 20 REV F - 07/22/2021Part Number 7115316 / ENGLISH
CONNECTING DEVICES
Connecting Electrical Devices
1. Allow the engine to warm up and the idle to stabilize before connecting any devices.
2. Inspect power cord for damage before using. Do not connect any electrical devices with
cords or plugs showing signs of damage from crushing, cutting, or heat, or other.
3. Make sure electrical devices are o before connecting them to the generator.
Generator Load Capacity
1. Before connecting any devices, you must make sure your generator can supply enough
rated (running watts) and starting (surge watts) for the electrical devices you wish to
power. Exceeding the capacity of generator can damage the generator and/or electrical
devices connected to it. Follow the instructions in this section to be sure you do not
exceed the maximum output of the generator.
2. Calculating Device Amperage Draw: Every electrical device has a draw. Expressed in
amperage, the draw describes the amount of current an electrical device pulls or draws
to work properly. A device’s draw can usually be found in the manual that came with it.
However, you can also gure out the amperage draw of a device by dividing the device
watts by the voltage it requires. For example, a 1000 watt circular saw running on 120
volts will draw 8.3 amps (1000 watts divided by 120 volts equals 8.3 amps).
3. Understanding Device Surge: Most electric devices require more power to get started
than they require to run. Called surge watts, this extra amount of starting power may
only last a second or two as the device powers up, but it must be considered to avoid
exceeding the generator’s maximum starting output. Surge watts are typically three (3)
times higher than the required running watts. For example, a 700-watt microwave oven
will require about 2100 watts to start.
4. To power multiple devices at the same time you will rst need to be sure the surge from
all the devices you wish to power does not exceed the maximum starting watts the
generator can provide. Second, you must add up all the device running watts and make
sure the total does not exceed the maximum running wattage the generator can provide.
5. Refer to the GENERATOR LOAD CHART in this manual for estimated running watts of
common electric devices.
ELECTROCUTION
Do not connect devices with worn, frayed, bare, or otherwise damaged electrical cords
to the generator. Electrical shorts caused by damaged wiring can damage the generator,
and touching live damaged electrical cords or bare wires will cause serious injury or
death. To avoid these electrocution hazards, inspect all electrical cords before using them
and do not use any cords that are damaged or showing bare wires.
Page 21 REV F - 07/22/2021Part Number 7115316 / ENGLISH
Do not overload the generator. Overloading the generator may damage the generator and/
or the devices plugged into the generator. Refer to the chart below to understand the loads
electrical devices create when running.
Device Running Watts
Air Conditioner
(12,000 Btu)
1700
Air Conditioner
(24,000 Btu)
3800
Air Conditioner
(40,000 Btu)
6000
Battery Charger
(20 Amp)
500
Belt Sander (3") 1000
Chain Saw 1200
Circular Saw (6-1/2") 800 - 1000
Clothes Dryer (Electric) 5750
Clothes Dryer (Gas) 700
Clothes Washer 1150
Coee Maker 1750
Compressor (1 HP) 2000
Compressor (3/4 HP) 1800
Compressor (1/ 2 HP) 1400
Curling Iron 700
Dehumidier 650
Disc Sander (9") 1200
Edge Trimmer 500
Electric Blanket 400
Electric Nail Gun 1200
Electric Range
(Per element)
1500
Electric Skillet 1250
Freezer 700
Furnace Fan (3/5 HP) 875
Garage Door Opener 500 - 750
Hair Dryer 1200
Hand Drill 250 - 1100
Device Running Watts
Hedge Trimmer 450
Impact Wrench 500
Iron 1200
Jet Pump 800
Lawn Mower 1200
Light Bulb 100
Microwave Oven 700 - 1000
Milk Cooler 1100
Oil Burner on Furnace 300
Oil Fired Space Heater
(140,000 Btu)
400
Oil Fired Space Heater
(85,000 Btu)
225
Oil Fired Space Heater
(30,000 Btu)
150
Paint Sprayer, Airless
(1/3 HP)
600
Paint Sprayer, Airless
(Handheld)
150
Radio 50 - 200
Refrigerator 700
Slow Cooker 200
Submersible Pump
(1-1/ 2 HP)
2800
Submersible Pump
(1 HP)
2000
Submersible Pump
(1/2 HP)
1500
Sump Pump 800 - 1050
Table Saw (10") 1750 - 2000
Television 200 - 500
Toaster 1000 - 1650
Weed Trimmer 500
Generator Load Chart
All the listed running watt ratings in this table are approximate. Please refer to the device’s
manual or contact the device’s manufacturer for exact running and starting watts.
NOTE: Starting a device can require as much as three (3) times the running watts.
OFF
OFF
OFF
Page 22 REV F - 07/22/2021Part Number 7115316 / ENGLISH
1. Turn o and unplug all devices from the generator outlets.
SHUTTING OFF GENERATOR
Turn the engine control switch to the
o position.
Use key to turn the engine control
switch to the o position.
Electric Start Models Manual Start Models
2. Turn o the engine.
NOTE: This manual covers generator models that feature both electric and manual start.
Refer to the CONTROL PANELS section of this manual to determine if your model is electric
or manual start, then follow the sequence below that is relevant to your model.
3. Turn fuel valve to the OFF position. For fuel valve location see the COMPONENT
LOCATION section of this manual.
4. Allow the engine to cool completely before storing.
Page 23 REV F - 07/22/2021Part Number 7115316 / ENGLISH
MAINTENANCE
Generator Maintenance
For safety reasons, the manufacturer recommends all generator service and repairs be
performed by a qualied service center. Normal maintenance, replacement, and / or repair of
emission control devices or systems may be performed by any establishment or individual.
However, all warranty replacements or repairs must be performed by an authorized service
center. To nd an authorized service center near you, to make a warranty claim, or for
authorized warranty repair, call 1-877-362-4271 or email [email protected].
It is the responsibility of the owner and/or operator to have all scheduled maintenance
completed before operating the generator. Before servicing or inspecting the generator,
stop the generator, disconnect all electrical devices and battery (if equipped), and allow the
generator and engine to cool down.
NOTE: The Generator Maintenance section refers to all parts of the generator except
engine. Please refer to the engine manual for engine maintenance information.
Engine Maintenance
Refer to the engine manual for all engine maintenance information.
Cleaning
Always clean the generator with the engine o and cool. To clean the generator, rst use
an air compressor set at no more than 25 PSI to clear dirt and debris from the generator
surfaces, vents, and cooling slots. Then, wipe the exterior clean with a damp cloth.
Water can damage the generator windings and other components if allowed to enter
through cooling slots or other holes. Damage caused by water intrusion is not covered
under warranty. To avoid damaging the generator, do not use a pressure washer, garden
hose, or any other sources of running water to clean the generator, and never submerge
the generator in any liquids.
CLEANING
Improper engine and generator maintenance and failing to correct problems before
operation could void the warranty and may result in property damage and injury. To
prevent these hazards, follow the maintenance procedures and timelines listed in this
manual and any other manual that came with this product.
MAINTENANCE
EXPLOSIVE GAS
MODIFICATION
Page 24 REV F - 07/22/2021Part Number 7115316 / ENGLISH
The generator and engine are factory set to supply the correct frequency and voltage
when running. Tampering with the factory governors and adjustments could damage the
generator and will void your warranty. To avoid damaging the engine or generator set, do
not modify the generator settings or not adjust the engine speed.
IDLE ADJUSTMENT
Battery Maintenance (Electric Start Models Only)
Batteries slowly lose strength when sitting idle through a process called self-discharge.
If a battery is allowed to discharge past a certain point, it cannot be recharged and must
be replaced. Therefore, it is best to keep the battery fully charged at all times to achieve
maximum service life.
Because batteries for the electric start generator models covered in this manual are sold
separately, and because there are dierent styles of batteries available, it is always best
to follow the battery manufacturer’s recommendations when handling, charging, storing,
servicing, or replacing a battery.
Engine Idle Adjustment
The engine idle speed is set at the factory and should not require user adjustment. Tampering
with the governor can damage your engine and/or generator and will void the warranty.
ACID
Improper adjustment of the engine idle speed can damage you engine and/or generator
set and will void the warranty. Any inspection and or adjustment of the engine idle should
be done by an authorized service center. Tampering with or modifying the engine speed
governor can damage you engine and/or generator set and will void the warranty.
Batteries contain sulfuric acid. Sulfuric acid is highly corrosive. Contact with skin can
cause severe burns; contact with eyes can cause permanent blindness; and accidental
ingestion can cause death. To avoid contact with sulfuric acid, always wear protective
equipment when handling batteries. If acid contacts skin, rinse the area with cool water
for 10-15 minutes. Immediately remove contaminated clothing and rinse the underlying
skin with cool water for 10-15 minutes.
Batteries produce hydrogen gas while charging. If exposed to an ignition source, hydrogen
gas can explode possibly causing property damage, serious injury and/or death. To avoid
a hydrogen gas explosion, charge batteries in a well-ventilated place away from open
ames, sparks, or any other sources of ignition.
Page 25 REV F - 07/22/2021Part Number 7115316 / ENGLISH
Problem Possible Causes Solutions
Engine will not start
For more information refer
to the engine manual.
Engine control switch is in
the OFF position.
Turn the engine control
switch to the ON position.
Choke not set correctly
Set the choke per the
OPERATING CHECKLIST
section of this manual
Empty fuel tank
Add fuel to tank per the
OPERATING CHECKLIST
section of this manual.
Fuel not reaching
carburetor
Turn the fuel valve to the
ON position
Low engine oil
Check the oil level and ll
as needed per the engine
manual.
Spark plug in bad condition
Inspect, clean, set gap, or
replace the spark plug per
the engine manual.
Fuel old or stale
Remove stale fuel and
replace it with fresh fuel.
Engine needs service
Take to an authorized
service center.
Problem Possible Causes Solutions
Generator has no output
Circuit breakers are o
Unplug all devices
and reset all the circuit
breakers to the ON
position
Device or cord failure
Unplug device and check
the cord and the device
for damage or lose
connections.
Generator needs service
Take to an authorized
service center.
TROUBLESHOOTING
Engine Troubleshooting Chart
Generator Troubleshooting Chart
Page 26 REV F - 07/22/2021Part Number 7115316 / ENGLISH
STORAGE AND TRANSPORTATION
Storing for Two Months or Less
1. Fill fuel tank per the OPERATING CHECKLIST section of this manual and add a fuel
stabilizer created for alcohol blended fuels.
2. Start the engine per the STARTING section of this manual and run it for ten (10) minutes
to allow the stabilized fuel circulate through the entire fuel system.
3. With the engine still running, turn the fuel valve to the OFF position and allow the engine
to run until it stalls from lack of fuel.
4. Allow the engine to cool completely.
5. Clean the generator per the MAINTENANCE section of this manual.
6. On electric start models, remove the battery and place it on a smart charger per the
MAINTENANCE section of this manual.
7. Store the generator and battery in a clean, dry area that is out of direct sunlight.
GASOLINE STORAGE
It is important to prevent gum deposits from forming in essential fuel system parts.
Alcohol-blended fuels (also called gasohol, ethanol, or methanol) attract moisture, which
leads to fuel separation and the formation of acids during storage. Acidic fuel and gum
deposits can damage the engine’s fuel system. Eects of old, stale, or contaminated fuel
are not covered under warranty.
NOTE: Using a fuel stabilizer such as Ethanol Shield™ (sold separately) when storing
gasoline will help prevent problems related to alcohol blended fuels in outdoor power
equipment engines. Always follow the instructions provided by the fuel stabilizer
manufacturer to mix and use correctly.
Page 27 REV F - 07/22/2021Part Number 7115316 / ENGLISH
Storing for More Than Two Months
1. Make sure the engine is completely cool.
2. Turn the fuel valve to the ON position.
3. Remove all the fuel from fuel tank, fuel lines, and carburetor by loosening the drain
screw at the bottom of the carburetor, then drain fuel into an appropriate container.
4. Turn the fuel valve to the OFF position.
5. Change the engine oil.
6. Remove any dirt and debris from the area around the spark plug, then Use a spark plug
socket or wrench to remove the spark plug.
7. Pour .5 ounces (15 ml) of new oil into the engine combustion chamber, then slowly crank
the engine by pulling the recoil two (2) times to distribute oil and lubricate the cylinder.
8. Install the spark plug.
9. For electric start models, remove the battery and place it on a smart charger per the
MAINTENANCE section of this manual.
10. Clean the generator per the MAINTENANCE section of this manual.
11. Store the generator and battery in a clean, dry area that is out of direct sunlight.
1. Place the fuel valve to the OFF position.
2. Turn the engine control switch to the OFF position.
3. To prevent fuel spillage when transporting, keep the generator upright on a level surface.
4. Secure generator with straps or tie downs to prevent tip over and damage from sliding.
NOTE: Do not operate the generator while it is on the transport vehicle.
Leaving the generator in an enclosed space on the transport vehicle where temperatures
can rise may cause fuel to vaporize and possibly explode. Fire and explosions can cause
severe burns and/or death. To avoid leaking or vaporizing fuel, secure the generator in a
well ventilated area on the transport vehicle that is out of direct sunlight and other heat
sources and do not transport the generator on rough roads unless the fuel has been
drained beforehand.
TRANSPORTATION
Transportation
Page 28 REV F - 07/22/2021Part Number 7115316 / ENGLISH
WIRING DIAGRAMS
SCGH5500
Page 29 REV F - 07/22/2021Part Number 7115316 / ENGLISH
SCGH8500
Page 30 REV F - 07/22/2021Part Number 7115316 / ENGLISH
SCGH8500E
*Generator per Portable Generator Manufacturers’ Association (PGMA) standard
ANSI / PGMAG6300-2015, Safety and Performance of Portable Generators
Page 31 REV F - 07/22/2021Part Number 7115316 / ENGLISH
SPECIFICATIONS
Generator Set Frequency 60hz
Voltage 120v / 240v
Phase Single
Running Watts* 4500 watts
Starting Watts 5500 watts
Power Factor 1.0
Insulation Rate Class “F” (105°C / 40°C)
Fuel Capacity 7.9 Gallons / 30 Liters
Engine
Specications
Engine Model Honda GX270
Displacement 270cc
Start Style Recoil
Oil Capacity 1.16 Quarts / 1.1 Liters
Generator Set Frequency 60hz
Voltage 120v / 240v
Phase Single
Running Watts* 7000
Starting Watts 8500
Power Factor 1.0
Insulation Rate Class “F” (105°C / 40°C)
Fuel Capacity 7.9 Gallons / 30 Liters
Engine
Specications
Engine Model Honda GX390
Displacement 389cc
Start Style Recoil
Oil Capacity 1.16 Quarts / 1.1 Liters
Model Number: SCGH5500 / Item Number: 70053
Model Number: SCGH8500 / Item Number: 70054
*Generator per Portable Generator Manufacturers’ Association (PGMA) standard
ANSI / PGMAG300-2015, Safety and Performance of Portable Generators
Page 32
REV F - 07/22/2021Part Number 7115316 / ENGLISH
Generator Set Frequency 60hz
Voltage 120v / 240v
Phase Single
Running Watts* 7000
Starting Watts 8500
Power Factor 1.0
Insulation Rate Class “F” (105°C / 40°C)
Fuel Capacity 7.9 Gallons / 30 Liters
Engine
Specications
Engine Model Honda GX390
Displacement 389cc
Start Style Electric & Recoil
Oil Capacity 1.16 Quarts / 1.1 Liters
Model Number: SCGH8500E / Item Number: 70055
Page 33 REV F - 07/22/2021Part Number 7115316 / ENGLISH
THIS PAGE WAS INTENTIONALLY LEFT BLANK
SAVE THIS MANUAL FOR FUTURE REFERENCE
Part Number 7115316 / ENGLISH REV F - 07/22/2021
READ THIS MANUAL CAREFULLY BEFORE OPERATION
Failure to follow the instructions and safety precautions in this manual can result
in property damage, serious injury and/or death.
