Briggs & Stratton 30473 User Manual
POWERSMART SERIES™ INVERTER GENERATOR
Not
for
Reproduction
SERVICE AND REPAIR MANUAL
MODEL 030473
This generator is rated in accordance with CSA (Canadian Standards Association) standard C22.2
No. 100-04 (motors and generators)
279957GS Rev. -
Briggs & Stratton Power Products Group, LLC
Not
for
Reproduction
P.O. Box 702
Milwaukee, WI 53201-0702
Copyright © 2010. All rights reserved. No part of this material
may be reproduced or transmitted in any form without the express
written permission of Briggs & Stratton Power Products Group, LLC.
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Table of Contents
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Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . 4
Generator Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Generator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Rewind Starter Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Stepper Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Engine Will Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
No AC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
No DC Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Generator Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 30
Generator Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . 31
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Important Safety Instructions
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SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation and maintenance of the generator and batteries.
Safety Symbols and Meanings
Kickback
Fire
Flying Objects
Explosive Pressure Chemical Burn
The safety alert symbol indicates a potential personal
injury hazard. A signal word (DANGER, WARNING, or
CAUTION) is used with the alert symbol to designate a degree
or level of hazard seriousness. A safety symbol may be used
to represent the type of hazard. The signal word NOTICE is
used to address practices not related to personal injury.
DANGER indicates a hazard which, if not avoided, will
result in death or serious injury.
WARNING indicates a hazard which, if not avoided, could
result in death or serious injury.
CAUTION indicates a hazard which, if not avoided, could
result in minor or moderate injury.
NOTICE addresses practices not related to personal injury.
The manufacturer cannot anticipate every possible
circumstance that might involve a hazard. The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that
it is safe for you and others. You must also make sure that
the procedure, work method or operating technique that you
choose does not render the generator system unsafe.
Electrical ShockToxic Fumes
Read ManualExplosion
Hot SurfaceMoving Parts
WARNING Running engine gives off carbon monoxide,
an odorless, colorless, poison gas.
Breathing carbon monoxide could result in death,
serious injury, headache, fatigue, dizziness,
vomiting, confusion, seizures, nausea or fainting.
• Operate this product ONLY outdoors.
• Install a battery operated carbon monoxide alarm near
the bedrooms.
• Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
WARNING The engine exhaust from this product
contains chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.
WARNING Certain components in this product and
related accessories contain chemicals known to the State
of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after handling.
WARNING
• This generator does not meet U.S. Coast Guard
Regulation 33CFR-183 and should not be used on marine
applications.
• Failure to use the appropriate U.S. Coast Guard approved
generator could result in death or serious injury and/or
property damage.
WARNING Starter cord kickback (rapid retraction)
will pull hand and arm toward engine faster than
you can let go which could cause broken bones,
fractures, bruises, or sprains resulting in serious
injury.
• When starting engine, pull cord slowly until resistance is
felt and then pull rapidly to avoid kickback.
• Never start or stop engine with electrical devices plugged
in and turned on.
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WARNING Fuel and its vapors are extremely flammable
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and explosive which could cause burns,
fire, or explosion resulting in death, serious
injury, and/or property damage.
When Adding or Draining Fuel
• Turn generator engine OFF and let it cool at least 2
minutes before removing fuel cap. Loosen cap slowly to
relieve pressure in tank.
• Fill or drain tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting
engine.
• Keep fuel away from sparks, open flames, pilot lights,
heat, and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for
cracks or leaks. Replace if necessary.
• DO NOT light a cigarette or smoke.
When Starting Equipment
• Ensure spark plug, muffler, fuel cap, and air cleaner are in
place.
• DO NOT crank engine with spark plug removed.
When Operating Equipment
• DO NOT operate this product inside any building, carport,
porch, mobile equipment, marine applications, or
enclosure.
• DO NOT tip engine or equipment at angle which causes
fuel to spill.
• DO NOT stop engine by moving choke to “CHOKE”
position.
When Transporting, Moving, or Repairing Equipment
• Transport/move/repair with fuel tank EMPTY or with fuel
shutoff valve OFF.
• DO NOT tip engine or equipment at angle which causes
fuel to spill.
• Disconnect spark plug wire.
When Storing Fuel or Equipment with Fuel in Tank
• Store away from furnaces, stoves, water heaters, clothes
dryers, or other appliances that have pilot light or other
ignition source because they could ignite fuel vapors.
WARNING Generator voltage could cause electrical
shock or burn resulting in death or serious injury.
Use approved transfer equipment to prevent
backfeed bt isolating generator from electric utility
workers.
• When using generator for backup power, notify
utility company.
• Use a ground fault circuit interrupter (GFCI) in any damp
or highly conductive area, such as metal decking or steel
work.
• DO NOT touch bare wires or bare receptacles.
• DO NOT use generator with electrical cords which are
worn, frayed, bare or otherwise damaged.
• DO NOT operate the generator in the rain or wet weather.
• DO NOT handle generator or electrical cords while
standing in water, while barefoot, or while hands and
feet are wet.
• DO NOT allow unqualified persons or children to operate
or service generator.
WARNING
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• DO NOT install the generator closer than 5 feet (1.5m)
from any combustibles or structures with combustible
walls having a fire resistance rating of less than 1 hour.
• Keep at least minimum distances shown in General
Location Guidelines to insure for proper generator cooling
and maintenance clearances.
• It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any forestcovered, brush-covered, or grass-covered land unless
the exhaust system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have
similar laws.
Contact the original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for the exhaust
system installed on this engine.
• Replacement parts must be the same and installed in the
same position as the original parts.
Exhaust heat/gases could ignite combustibles
or structures resulting in death, serious
injury and/or property damage.
Contact with muffler area could cause
burns resulting in serious injury.
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WARNING Unintentional sparking could cause fire or
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electric shock resulting in death or serious
injury.
When Adjusting Or Making Repairs To Your Generator
• Disconnect the spark pluh wire from the spark plug and
place the wire where is cannot contact spark plug.
When Testing For Engine Spark
• Use approved spark plug tester
• DO NOT check for spark with spark plug removed.
WARNING Starter and other rotating parts could
entangle hands, hair, clothing, or accessories
resulting in serious injury.
• NEVER operate generator without protective housing or
covers.
• DO NOT wear loose clothing, jewelry or anything that
could get caught in the starter or other rotating parts.
• Tie up long hair and remove jewelry.
CAUTION Excessively high operating speeds could
result in minor injury and/or equipment damage.
Excessively low speeds impose a heavy load on generator.
• DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at
governed speed.
• DO NOT modify generator in any way.
NOTICE Exceeding generators wattage/amperage
capacity could damage generator and/or electrical devices
connected to it.
• DO NOT exceed the generator’s wattage/amperage
capacity. See Don’t Overload Generator in the Operator’s
Manual.
• Start generator and let engine stabilize before connecting
electrical loads.
• Connect electrical loads in OFF position, then turn ON for
operation.
• Turn electrical loads OFF and disconnect from generator
before stopping generator.
NOTICE Improper treatment of generator could damage it
and shorten its life.
• Use generator only for intended uses.
• If you have questions about intended use, contact your
authorized dealer.
• Operate generator only on level surfaces.
• DO NOT expose generator to excessive moisture, dust,
dirt, or corrosive vapors.
• Remain alert at all times while working on this equipment.
Never work on the equipment when you are physically
or mentally fatigued.
• DO NOT start engine with air cleaner or air cleaner
cover removed.
• DO NOT insert any objects through cooling slots.
• DO NOT use the generator or any of its parts as a step.
Stepping on the unit could cause stress and break parts.
This may result in dangerous operating conditions from
leaking exhaust gases, fuel leakage, oil leakage, etc.
• If connected devices overheat, turn them off and
disconnect them from generator.
• Shut off generator if
- electrical output is lost;
- equipment sparks, smokes, or emits flames;
- unit vibrates excessively.
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Generator Location
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Fuel Recommendations
WARNING
• Keep at least 5 feet (152 cm) of clearance on all sides of
generator including overhead.
For proper clearance and air movement, place generator
outdoors in an area that will not accumulate deadly exhaust
gas. DO NOT place generator where exhaust gas (A, Figure
1) could accumulate and enter inside or be drawn into a
potentially occupied building. Ensure exhaust gas is kept
away from any windows, doors, ventilation intakes, or other
openings that can allow exhaust gas to collect in a confined
area. Prevailing winds and air currents should be taken into
consideration when positioning generator.
Exhaust heat/gases could ignite combustibles
or structures resulting in death, serious
injury and/or property damage.
Fuel must meet these requirements:
• Clean. fresh, unleaded gasoline
• A minimum of 87 octane/87 AKI (91 RON)
• Gasoline with up to 10% ethanol (gasohol) or up to
15%MTBE (methyl tertiary butyl ether) is acceptable.
NOTICE: Do not use unapproved gasoline, such as E85.
Do not mix oil in gasoline or modify the engine to run on
alternate fuels. Failure to follow will result in damage to the
engine and/or generator and will void the warranty.
To protect the fuel system from gum formation, mix in a
fuel stabilizer when adding fuel. All fuel is not the same. If
you experience starting or performance problems after using
fuel, switch to a different fuel provider or change brands.
This engine is certified to operate on gasoline. The emission
control system for this engine is EM (Engine Modifications).
WARNING Fuel and its vapors are extremely flammable
and explosive which could cause burns,
fire, or explosion resulting in death, serious
injury, and/or property damage.
Figure 1
When Adding or Draining Fuel
• Turn generator engine OFF and let it cool at least 2
minutes before removing fuel cap. Loosen cap slowly to
relieve pressure in tank.
• Fill or drain tank outdoors.
• DO NOT overfill tank. Allow space for fuel expansion.
• If fuel spills, wait until it evaporates before starting
engine.
A
• Keep fuel away from sparks, open flames, pilot lights,
heat, and other ignition sources.
• Check fuel lines, tank, cap, and fittings frequently for
cracks or leaks. Replace if necessary.
• DO NOT light a cigarette or smoke.
High Altitude
At altitudes over 5,000 feet (1524 meters), a minimum 85
octane / 85 AKI (89 RON) gasoline is acceptable. To remain
emissions compliant, high altitude adjustment is required.
Operation without this adjustment will cause decreased
performance, increased fuel consumption, and increased
emissions.
Operation of the generator at altitudes below 2,500 feet (762
meters) with the high altitude kit is not recommended.
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Fuel Tank Cap Vent Lever
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The fuel tank cap is provided with a vent lever (A, Figure 2) to
seal the fuel tank. The vent lever must be in the “ON” position
for the engine to run.
A
Figure 2
When the engine is not in use, leave the vent lever in the
“OFF” position to reduce the possibility of fuel leakage. Allow
the engine to cool before turning the vent lever to the “OFF”
position.
Grounding Fastener
The generator neutral is floating, which means that the AC
stator winding is isolated from the grounding fastener and
the AC receptacle ground pins. Therefore, the AC receptacle
ground pins are not functional and electrical devices, such as
a GFCI will not operate.
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Generator Components
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A
B
C
D
E
F
R
P
N
G
H
J
A - Fuel Tank Cap Vent Lever — Turn the vent lever to the
“ON” position when operating the generator. Turn to the
“OFF” position when not in use.
B - Fuel Tank — Capacity of 1.0 U.S. gallon (3.7L).
C - Choke Lever — Used when starting cold engine.
D - Side Maintenance Cover — Remove to gain access for
air cleaner and oil service.
E - Recoil Starter — Used to start the engine manually.
F - Engine Switch — Set this switch to “ON” before using
recoil starter. Set switch to “OFF” to stop engine. Also
turns fuel valve on and off.
G - Output Indicator — A green LED light comes on when
the generator in working correctly and producing power
at the receptacles.
H - 12 Volt DC Receptacle — Use this receptacle with
battery charge cables to charge a 12 Volt battery. This
receptacle is protected by a push to reset circuit breaker.
J - Grounding Fastener — Consult your local agency having
jurisdiction for grounding requirements in your area.
K - 120 Volt AC, 20 Amp, Duplex Receptacle — May be
used to supply electrical power for the operation of 120
Volt AC, 20 Amp, single phase, 60 Hz electrical, lighting,
appliance, tool, and motor loads.
L - Overload Alarm — A red LED light comes on and
cuts power to the receptacles when the generator is
overloaded.
M - Low Oil Indicator — A yellow LED light comes on when
the oil in the generator drops below a preset level.
N - POWERSMART Switch — Use the switch to turn the
POWERSMART mode on and off.
P - Spark Arrester Screen — Exhaust muffler lowers engine
noise and is equipped with a spark arrester screen.
R - Top Maintenance Cover — Remove to gain access to the
spark plug.
Items Not Shown:
Air Cleaner (behind side maintenance cover) —
Protects engine by filtering dust and debris out of intake
air.
Oil Fill Cap (behind side maintenance cover) — Check
and add engine oil here.
Identification Label — Provides model, revision, and
serial number of generator. Please have these readily
available when calling for assistance.
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M
L
K
Maintenance
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Generator Maintenance
Maintenance Schedule
Follow the hourly or calendar interval, whichever occurs first.
More frequent service is required when operating in adverse
conditions noted below.
Every 8 Hours or Daily
• Clean debris
• Check engine oil level
First 10 Hours
• Change engine oil
Every 50 Hours or 3 Months
• Service engine air cleaner and breather filter*
Every 100 Hours or 6 Months
• Clean fuel strainer
• Change engine oil*
• Service spark plug
• Inspect muffler and spark arrester
Every 250 Hours or Annually
• Check valve clearance
*Service more often under dirty or dusty conditions
General Recommendations
Regular maintenance will improve the performance and
extend the life of the generator.
NOTICE: Improper treatment of the generator could damage
it and shorten its life. Never operate generator without
protective housing or covers to assure proper cooling. Some
adjustments will need to be made periodically to properly
maintain the generator.
Generator maintenance consists of keeping the unit clean
and dry. Operate and store the unit in a clean and dry
environment where it will not be exposed to excessive dust,
dirt, moisture, or any corrosive vapors. Cooling air slots in
the generator must not become clogged with snow, leaves, or
any other foreign material.
NOTICE: DO NOT use water or other liquids to clean
generator. Liquids can enter engine fuel system, causing
poor performance and/or failure to occur. In addition, if liquid
enters generator through cooling air slots, some of the liquid
will be retained in voids and cracks of the rotor and stator
winding insulation. Liquid and dirt buildup on the generator
internal windings will eventually decrease the insulation
resistance of these windings.
Cleaning Fuel Strainer
The fuel strainer helps prevent debris from entering the fuel
system.
Clean the fuel strainer as follows:
1. Make sure generator is on a level surface.
2. Remove the fuel cap (A, Figure 3) and fuel strainer (B).
3. Wash fuel strainer in liquid detergent and water.
4. Wipe fuel strainer clean with a clean, dry cloth.
5. Carefully reinstall the fuel strainer and fuel cap.
A
Figure 3
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B
Engine Maintenance
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WARNING Unintentional sparking could cause fire or
electric shock resulting in death or serious
injury.
When Adjusting Or Making Repairs To The Generator
• Disconnect the spark plug wire from the spark plug and
place the wire where is cannot contact spark plug.
When Testing For Engine Spark
• Use approved spark plug tester
• DO NOT check for spark with spark plug removed.
Oil
Oil Recommendations
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality
detergent oils are acceptable if classified for service SF, SG,
SH, SJ or higher. DO NOT use special additives.
Outdoor temperatures determine the proper oil viscosity for
the engine. Use the chart to select the best viscosity for the
outdoor temperature range expected.
Checking Oil Level / Adding Oil
Oil level should be checked prior to each use or at least every
8 hours of operation. Keep oil level maintained.
1. Make sure generator is on a level surface.
2. Loosen the side maintenance cover screws and remove
the side maintenance cover (Figure 4).
Figure 4
3. Clean area around oil fill and remove oil fill cap.
4. Verify oil is at the point of overflowing at oil fill opening
(Figure 5).
* Below 40°F (4°C) the use of SAE 30 will result in hard starting.
** Above 80°F (27°C) the use of 10W30 may cause increased oil
consumption. Check oil level more frequently.
Figure 5
5. If needed, slowly pour oil into oil fill opeinging to the
point of overflowing at oil fill.
6. Replace and tighten oil fill cap.
7. Reinstall the side maintenance cover and hand tighten
the cover screws.
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