Winco WL14000VE-03/A Setup guide

www.wincogen.com
INSTALLATION AND
OPERATORS MANUAL
16200-051
WL14000VE-03/A
GENERATOR

2
OPM-168/A
TABLE OF CONTENTS
SAFETY INFORMATION 3
SAVE THESE INSTRUCTIONS 4
SPECIFICATIONS 5
GENERATOR
ENGINE
INTRODUCTION 6
TESTING POLICY
INTENDED USES
RESTRICTED USES
UNIT CAPABILITIES 7
GENERATOR CONNECTIONS
STARTING ELECTRIC MOTORS
PREPARING THE UNIT 8
UNPACKING
LUBRICATION
OIL RECOMMENDATIONS
OIL ALERT SYSTEM
FUELING
BATTERY INSTALLATION
BATTERY CHARGING
LIFTING EYE INSTALLATION
OPTIONAL DOLLY KIT
INITIAL START UP 10
BASIC OPERATION
STARTING HINTS
CONNECTING THE LOADS 11
APPLYING THE LOADS
GROUNDING
WIRING
YOURGEN 13
ENGINE CARE 15
MAINTENANCE SCHEDULE
CHECKING THE OIL LEVEL
CHANGING THE OIL
DUAL ELEMENT AIR FILTER
SPARK PLUG
CARBON CANISTER
GENERATOR CARE 17
EXERCISING THE GENERATOR
GENERATOR MAINTENANCE
CLEANING
TROUBLESHOOTING 18
RECEPTACLE WIRING DIAGRAM 19
LIMITED WARRANTY 20
CA EVAP EMISSION CONTROL 23

3OPM-168/A
SAFETY INFORMATION
IMPORTANT SAFETY INSTRUCTIONS
This engine generator set has been designed and
manufactured to allow safe, reliable performance. Poor
maintenance, improper or careless use can result in
potentially deadly hazards; from electrical shock, exhaust
gas asphyxiation, or fire. Please read all safety instructions
carefully before installation or use. Keep these instructions
handy for future reference. Take special note and follow all
warnings on the unit labels and in the manuals.
SAFETY DEFINITIONS
DANGER
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
CAUTION
Indicates a potentially hazardous situation
which, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.
CALIFORNIA PROPOSITION 65
WARNING: This product contains crude oil,
gasoline, diesel fuel and other petroleum
products, Antifreeze to which can expose you
to chemicals including toluene and benzene,
Ethylene glycol (ingested) which are known to the
State of California to cause cancer, birth defects or other
reproductive harm and developmental issues.
For more information go to www.P65Warning.ca.gov.
DANGER: ELECTRICAL SHOCK
The output voltage present in this equipment can cause
fatal electric shock. This equipment must be operated by a
responsible person.
A. Do not allow anyone to operate the generator
without proper instruction.
B. Guard against electric shock.
C. Avoid contact with live terminals or receptacles.
D. Use extreme care if operating this unit in rain or
snow.
E. Use only three-pronged grounded receptacles
and extension cords.
F. Be sure the unit is properly grounded for your
application.
DANGER: DEADLY EXHAUST GAS
Exhaust fumes from any gasoline engine contain carbon
monoxide, an invisible, odorless and deadly gas that must
be mixed with fresh air.
A. Operate only in well ventilated areas.
B. Never operate indoors including attached
garages
C. Never operate the unit in such a way as to allow
exhaust gases to seep back into closed rooms
(i.e. through windows, walls, floors).
WARNING: FIRE HAZARD
Gasoline and other fuels present a hazard of possible
explosion and/or fire.
A. Do not refuel when the engine is running or hot.
B. Keep fuel containers out of reach of children.
C. Do not smoke or use open flame near the
generator set or fuel tank.
D. Keep a fire extinguisher nearby and know its
proper use. Fire extinguishers rated ABC by
NFPA are appropriate.
E. Store fuel only in an approved container, and
only in a well ventilated area.
F. Follow local codes for closeness to combustible
material.
CAUTION: PERSONAL INJURY
The muffler becomes very hot during operation and for a
period after the unit has been turned off. Do not touch the
muffler until it has completely cooled off.
CAUTION: NOISE HAZARD
Excessive noise is not only tiring, but continual exposure
can lead to loss of hearing.
A. Use hearing protection when working around
this equipment for long periods of time.
B. Keep your neighbors in mind when using this
equipment.
CAUTION
Keep the generator and surrounding area clean.
A. Remove all grease, ice, snow or materials that
create
slippery conditions around the unit.
B. Remove any rags or other materials that could
create a potential fire hazard.
C. Carefully clean up any gas or oil spills before
starting the unit.
CAUTION
All service, including the installation or replacement of
service parts, should be performed only by a qualified
technician.
A. Use only factory approved repair parts.
B. Do not work on this equipment when fatigued.
C. Never remove the protective guards, covers, or
receptacle panels while the engine is running.
D. Use extreme caution when working on electrical
components. High output voltage from this
equipment can cause serious injury or death.
E. Always avoid hot mufflers, exhaust manifolds,
and engine parts. They can cause severe burns
instantly.
F. The use of the engine-generator set must comply
with all national, state, and local codes.

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OPM-168/A
SAVE THESE INSTRUCTIONS
USING THIS MANUAL
Congratulations on your choice of a WINCO generator.
You have selected a high-quality, precision-engineered
generator designed and tested to give you years of
satisfactory service.
This manual contains important instructions that should
be followed during use, installation and maintenance of
the generator. Read and understand all instructions in the
manual before starting and operating the generator.
To get the best performance from your new generator, it is
important that you carefully read and follow the operating
instructions in this manual.
Should you experience a problem please follow the
“Troubleshooting Tables” near the end of this manual.
The warranty listed in the manual describes what you can
expect from WINCO should you need service assistance in
the future.
COPY YOUR MODEL AND SERIAL NUMBER HERE
No other WINCO generator has the same serial number as
yours. If you should ever need to contact us concerning this
unit, it will help us to respond to your needs faster.
MODEL
SERIAL NUMBER
PURCHASE DATE
DEALER NAME
DEALER PHONE #

5OPM-168/A
SPECIFICATIONS
GENERATOR
Model WL14000VE-03/A
Surge Watts 14,000
Continuous Watts 11,760
Volts 120/240
Amps 58/49
Generator Manufacturer Mecc Alte
Generator Model Number S20F-230/A
Part Number 16428-002
Capacitors 300323-112 (qty 1)
300323-212 (qty 2)
ENGINE
Engine Manufacturer Briggs & Stratton
Engine Model Number 38E347-0017-G1
Spark Plug Gap 0.030 in
Spark Plug Torque 180 in/lbs
Intake Valve Clearance 0.004 - 0.006 in
Exhaust Valve Clearance 0.004 - 0.006 in
Oil Capacity 48 oz (1.5 qts)

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OPM-168/A
INTRODUCTION
TESTING POLICY
Before any generator is shipped from the factory, it is fully
checked for performance. The generator is loaded to its
full capacity, and the voltage, current, and frequency are
carefully checked.
Rated output of generator is based on engineering tests
of typical units, and is subject to, and limited by, the
temperature, altitude, fuel, and other conditions specified
by the manufacturer of applicable engines.
INTENDED USES
This engine generator set has been designed primarily for
portable heavy duty commercial use. Both 120 volt and 240
volt receptacles are provided in the control panel to plug
in your loads (lights, portable tools, and small appliances).
These units are dual wound generators, therefore the
120 volt loads must be equally split with 1/2 of the rated
capacity available on each of the two 120 volt circuits.
This portable unit requires large quantities of fresh air for
cooling the engine and generator. For safety, long life, and
adequate performance, these units should never be run in
small compartments without positive fresh air flow.
RESTRICTED USES
DO NOT remove from the cradle assembly. Removal of the
generator from the cradle assembly may cause excessive
vibration and damage to the engine-generator set.
DO NOT operate and/or store the unit outside during
inclement weather without adequate protection from the
elements. Failure to do so will damage the unit.
DO NOT install and operate this generator in a small
compartment., i.e. generator compartments of vehicles,
motor homes or travel trailers. These compartments
will not allow enough free flow of fresh air to reach the
engine generator set for cooling and will cause the unit to
overheat, damaging both the engine and generator. Small
compartments will also develop hot spots where there is
very little air flow and may cause a fire.
PLEASE NOTE There are 3rd party companies making
enclosures for generators that have been properly
engineered. The use of these 3rd party enclosures is
acceptable as long as they have been certified and meet
current code.
DO NOT attempt to operate at 50 cycles. These units are
designed and governed to operate at 60 cycles only.

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UNIT CAPABILITIES
GENERATOR CONNECTIONS
WL14000VE: 120 Volt and 240 Volt receptacles are
provided for connection to various loads. The following
diagram represents this 11,760 watt (rated output)
generator. A & B represent the 120 volt output legs of this
generator. Up to 5,880 watts at 120 volts (58 Amps) can be
drawn from the receptacles attached to either A or B output
legs. This generator is capable of producing 58 Amps of 240
volt current at C. Check the appliance or tool nameplates for
the current and voltage to insure compatibility. Remember
that power taken from C reduces the power available
equally at both A and B and vice versa.
STARTING ELECTRIC MOTORS
Electric motors require much more current (amps) to start
them than to run them. Some motors, particularly low cost
split-phase motors, are very hard to start and require 5 to 7
times as much starting current as running current. Capacitor
motors are easier to start and usually require 2 to 4 times
as much starting current as running current. Repulsion
Induction motors are the easiest to start and require only 1
1/2 to 2 1/2 times as much starting as running current.
Most fractional horsepower motors take about the same
amount of current to run them whether they are Repulsion
Induction (RI), Capacitor (Cap), or Split-Phase (SP) type.
If the electric motor is connected to a hard starting load
such as an air compressor, it will require more starting
current. If it is connected to a light load, or no load such as
a power saw, it will require less starting current. The exact
requirement will also vary with the brand or design of the
motor.
Self-exciting generators respond to severe overloading
differently than utility power. When overloaded, the engine
is not able to supply enough power to bring the electric
motor up to operating speed. The generator responds with
high initial starting current, but the engine speed drops
sharply. The overload may stall the engine. If allowed to
operate at very low speeds, the electric motor starting
winding will burn out in a short time. The generator
winding might also be damaged.
CAUTION: EQUIPMENT DAMAGE
Running the generator set under these conditions may
result in damage to the generator stator as well as the
motor winding.
The heavy surge of current required for starting motors
is required for only an instant. The generator will not be
damaged if it can bring the motor up to speed in a few
seconds of time. If difficulty is experienced in starting
motors, turn all other electrical loads off and if possible
reduce the load on the electric motor.

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OPM-168/A
PREPARING THE UNIT
UNPACKING
CAUTION: EQUIPMENT DAMAGE
THIS UNIT HAS BEEN SHIPPED WITH OIL. Failure to
maintain the engine oil at the proper level will result in
serious engine damage.
When you unpack your engine-generator set be sure to
remove all the information sheets and manuals from the
carton.
1. As you receive your unit, it is critical to check it for any
damage. If any damage is noted, it is always easiest to
refuse the shipment and let WINCO take care of the freight
claim. If you sign for the unit, the transfer of the ownership
requires that you file the freight claim
2. Before proceeding with the preparations of your new
generator for operation, take a couple of minutes to ensure
the unit you have received is the correct model and review
the specification pages in this manual to ensure that this
unit meets your job requirements.
LUBRICATION
Before starting the engine, check the oil level. This unit has
been shipped with oil. The recommended grade oil and
quantity of oil required is listed in the engine operator’s
manual and under the service tab in this manual. The
engine normally holds 48 ounces (1.5 quarts) of oil. Since
there is some trapped in the engine, when filling the
crankcase the first time, use the dipstick to ensure that you
do not over fill the crankcase. The full oil level mark on the
dipstick is depicted in the following image.
Oil is added to the engine by removing the oil cap and
adding oil at this point. After filling the crankcase to the
proper level, be sure you properly tighten the oil fill cap.
NOTE: This engine generator must be on a level surface
before you check or add oil to the system.
The necessity of using the correct oil and keeping the
crankcase full cannot be overemphasized. Engine failures
resulting from inadequate or improper lubricant are
considered abuse and not covered by the generator or
engine manufacturer’s warranty.
OIL RECOMMENDATIONS
Outdoor temperatures determine the proper oil viscosity for
the engines. Winco recommends our 5W-30 fully synthetic
oil to give you excellent protection in cold temperatures
while maintaining excellent performance in warmer
weather.
ASAE 30 - Below 40°F, the use of SAE 30 will result in hard starting
B10W-30 - Above 80°F, the use of 10W-30 may cause increased oil
consumption. Check the oil level frequently.
C5W-30
DSynthetic 5W-30
EVanguard Synthetic 15W-50
OIL ALERT SYSTEM
This generator is equipped standard with the Briggs &
Stratton low oil pressure shutdown system. The low oil
shutdown system is designed to prevent severe damage
caused by an insufficient amount of oil in the crankcase.
However, if the unit is repeatedly allowed to shutdown on
low oil pressure, progressive damage will be done to the
engine, shortening the engine’s life. The engine switch will
remain in the “ON” position when the unit is shutdown by
the low oil pressure system.
CAUTION: EQUIPMENT DAMAGE
Allowing the engine to shutdown repeatedly on low oil
level may cause excessive wear which can be cumulative.
FUELING
WARNING: FIRE DANGER
Gasoline and its fumes are VERY explosive when proper
precautions are not taken.
1. Stop engine and keep sparks, heat, and fire away.
2. Handle fuel outdoors only.
3. Wipe up any spills immediately
CAUTION: EQUIPMENT DAMAGE
Do not use unapproved gasolines, such as E15 or E85.
Do not mix oil in the gasoline. Use of unapproved fuels
will damage the engine components and void the engine
warranty.
When using gasoline, always use fresh, clean, unleaded
fuel. The engine is certified to operate on unleaded gasoline
with a minimum octane rating of 87 or higher. Gasoline
containing no more the 10% ethanol is acceptable.
Use of fuels with content of ethanol greater than shown
above may cause starting and/or performance problems.
Always ensure that the fuel is clean and free of all
impurities.

9OPM-168/A
Never use gasoline that has been stored for an extended
period of time as the fuel will lose its volatile properties
and you will be left with varnish residue. The varnish
like substance will clog the carburetor and will not burn
properly.
The use of fuel additives, such as Sta-Bil, or an equivalent
will minimize the formation of fuel gum deposits. If a unit
has been out of operation for an extended period of time,
it is best to drain old fuel from the engine and replace with
fresh fuel before attempting to start.
See the engine manual for special instruction for operating
this unit at over 5000 feet.
BATTERY INSTALLATION
CAUTION
A battery presents a risk of electrical shock and high
short circuit current. The following precautions must be
observed when working with batteries:
1. Remove watches, rings, and other metal objects.
2. Use tools with insulated handles.
3. Check both the battery cable ends and the battery
posts to be sure they are free of corrosion.
4. Always connect the battery positive cable first and
then connect the battery negative cable. When
removing the battery cables from the battery,
reverse the procedure, disconnect the negative
first and then the positive cable.
5. Be sure all connections are tight and coat the
terminals and cable ends with dialectic grease.
This engine generator set is shipped with a bungee cord
for installation of the customer supplied battery in the unit’s
battery tray.
If you intend to use the unit’s electric start system, you will
need to purchase and install a battery to operate it. A 12
Volt battery, BCI group U1 rated at 300 CCA or larger is
recommended for this electric start engine-generator set.
Follow the battery manufacturers recommendations for
servicing and charging prior to use. Connect the battery to
the electric start system using the cables provided.
CAUTION: EQUIPMENT DAMAGE
These electric start engines are NEGATIVE GROUND. Use
extreme caution when connecting the battery. Connect
the NEGATIVE battery terminal to GROUND.
For your safety, always connect the positive battery cable to
the “Bat+” terminal first. Then connect the negative battery
cable to the “Bat-” terminal. Make sure all connections are
clean an tight. Reverse the sequence when disconnecting,
disconnect the negative cable first. These engines produce
enough direct current to keep the battery charged under
normal operating conditions, but were not intended to be
used as a battery charger.
WARNING
The electrolyte is diluted sulfuric acid that is harmful to the
skin and eyes. It is electrically conductive and corrosive.
The following precautions must always be taken.
1. Always wear full eye protection and protective
clothing.
2. Where electrolyte contacts skin, wash off
immediately with water.
3. If electrolyte contacts the eyes, flush thoroughly
and immediately with water and seek immediate
medical attention
4. Spilled electrolyte is to be washed down with an
acid neutralizing agent. A common practice is to
use a solution of one pound of bicarbonate of soda
(baking soda) to one gallon of water. The
bicarbonate of soda solution is to be added until
the evidence of reaction (foaming) has ceased. The
resulting liquid is to be flushed with water and the
area dried.
DANGER: EXPLOSIVE FIRE RISK
Batteries emit explosive hydrogen gas while charging.
1. Never smoke when near batteries.
2. Do not cause a flame or spark in the battery area.
3. Always discharge static electricity from your body
before touching batteries by first touching a
ground metal surface.
BATTERY CHARGING
Units have a small flywheel charger built into the engine
flywheel assembly for recharging the starting battery. This
flywheel charger generates a small AC current that passes
through a diode assembly to produce DC charging current
of about 1 to 3 Amps. This circuit is not designed to be used
as a battery charging circuit to recharge dead batteries.
LIFTING EYE INSTALLATION
The lifting eye is shipped loose along with a bag of parts.
Install the lifting eye to the side support brackets. See
diagram below.
OPTIONAL DOLLY KIT
An optional 4-wheel dolly kit is available for this generator.
The dolly kit comes with instructions and parts list.
Cap Screw
Lifting
Eye
Flat
Washer
Flat
Nylon
Washer 0.5-13
Nylock

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OPM-168/A
INITIAL START UP
WARNING: PERSONAL INJURY
Improper maintenance, or failure to fix any problems
during operation, could cause equipment damage
and possible serious injury. Always inspect unit prior to
operation.
DANGER: DEADLY EXHAUST GAS
Exhaust fumes from any gasoline engine contain carbon
monoxide, an invisible, odorless and deadly gas that
must be mixed with fresh air. Never run an engine in an
enclosed space or near windows or vents.
NOTICE: ENGINE START LOCKOUT
This unit will not start if it is low on oil. The lubricating oil
level must be at the full mark before the engine will start
and run.
The throttle control on these generators is preset and
locked to operate at 3600 RPM (nominal) with no load
speed set at 3690 RPM. Only a trained service technician
should be allowed to adjust this speed setting.
BASIC OPERATION
CAUTION: EQUIPMENT DAMAGE:
Always start the unit with the circuit breaker open, never
start with the load applied. Always keep the battery
charged, especially during cold weather operation.
1. Check oil level, refill as needed.
2. Turn on the fuel supply.
3. Turn the key to the start position.
NOTICE
To extend the life of the starter, use short cycles (five
seconds maximum). Wait one minute between start cycles.
4. When the engine starts, release the key.
5. The engine should promptly come up to operating
speed.
STARTING HINTS
1. COLD WEATHER
A. Use the proper oil for the temperature expected.
B. Use fresh winter grade fuel. Winter grade gasoline is
blended to improve starting. Do not use summer grade
gasoline.
2. HOT WEATHER
A. Use the proper oil for the temperature expected.
B. Use only summer blended gasoline. Using gasoline left
over from winter may cause the unit to vapor lock.
OPERATING SPEED
The engine-generator must be run at the correct speed
in order to produce the proper electrical voltage and
frequency.
CAUTION: EQUIPMENT DAMAGE & PERSONAL INJURY
The output voltage should be checked to ensure the
generator is working properly prior to connecting a load
to the generator. Failure to do so could result in damage
to equipment plugged into the unit and possible injury to
the individual.
All engines have a tendency to slow down when a load
is applied. When the electrical load is connected to the
generator, the engine is more heavily loaded, and as a
result, the speed drops slightly. This slight decrease in
speed, together with the voltage drop within the generator
itself, results in a slightly lower voltage when the generator
is loaded to its full capacity than when running no load.
The slight variation in speed also affects the frequency
of the output current. This frequency variation has no
appreciable effect in the operation of motors, lights, and
most appliances. However, electronic equipment and clocks
will be affected if correct RPM is not maintained. See Load
vs. Output chart.
Although individual units and models vary slightly, the
normal voltage and frequency of the engine-generator
described in this manual are approximately as follows,
under varying loads:
LOAD vs. OUTPUT
Generator
Load
Speed
(RPM)
Frequency
(Hz)
Voltage
None 3600 60.0 125 V
Half 3600 60.0 120V
Full 3510 58.5 115V
STOPPING AND STORING
1. Move the key to the “OFF” position.
2. Turn off the fuel supply valve.
3. Before extended storage (over 30 days) certain
precautions must be taken to ensure the fuel doesn’t
deteriorate and clog the fuel system.
NOTE: The use of a fuel additive, such as Sta-Bil or
equivalent will minimize the formation of gum deposits
during storage. The additive may be added to gasoline in
the engines fuel tank or to gasoline in a storage container.
A. Add the fuel stabilizer to the fuel in the tank and run
for 2 minutes to circulate the stabilizer throughout the
fuel system.
B. Remove the remaining fuel from the fuel tank, it must
be drained into an approved container.
C. Start the engine and allow it to run until all the fuel in
the carburetor and the fuel lines has been used up and
the engine stops.
NOTE: Running the engine to use up the fuel in the lines

11 OPM-168/A
CONNECTING THE LOADS
The engine-generator covered in this manual was designed
for portable use. Do NOT operate indoors. The unit should
be stored in a warm, dry location. Move the unit outdoors
to a flat, dry location for use.
WARNING: PERSONAL DANGER:
Operating any engine driven generator without proper
air flow can result in personal injury or death. DO NOT
operate this unit inside a home or garage, near vents
or windows, or anywhere carbon monoxide gas could
accumulate.
APPLYING THE LOADS
Allow the engine to warm up for two or three minutes
before applying any load. This will allow the engine to
reach normal operating temperature and oil to circulate
throughout the engine. A short warm-up time will permit
the engine to work more efficiently when the load is
applied and will reduce the wear in the engine, extending
its life.
Receptacles have been provided to allow loads to be
connected to the generator. The loads should be added
one at a time. If a large motor is being started: or multiple
motors are being started, they should be started individually
and the largest should be started first.
CAUTION: EQUIPMENT OVERLOAD
Keep the generator load within in the generator and
receptacle nameplate rating. Overloading may cause
damage to the generator and/or the loads.
Most electric tools and appliances will have the voltage and
amperage requirements on their individual nameplates.
When in doubt, consult the manufacturer or a local
electrician. The nameplate amperage rating for electric
motors can be misleading. See “Starting Electric Motors” in
the Unit Capabilities.
These engine-generator sets are inherently self regulating
based on engine speed. The engine governor will
automatically adjust itself to the load. No harm to
the generator will result if it is operated with no load
connected. Proper utilization of the receptacles located on
the control panel is necessary to prevent damage to either
the receptacles or the generator. The generator is a limited
source of electrical power. Therefore, pay special attention
and carburetor will still leave a small amount of fuel in
carburetor. It is best extended storage practice to treat the
fuel before draining.
D. While the engine is warm, drain the oil and refill with
fresh oil.
E. Remove the spark plug, pour approximately 1/2 oz.
(15cc) of engine oil into the cylinder and crank slowly
to distribute the oil. Replace the spark plug.
E. Clean dirt and chaff from cylinder, cylinder head fins,
blower housing, screen, and muffler areas.
F. Store in a clean and dry area.

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OPM-168/A
4-wire receptacle (two hot, one ground, and one
neutral) has been provided on the control panel for use
in temporary power applications requiring 120/240
Volt power. Consult a licensed electrician for wiring the
TemPower plug and connecting it as temporary service.
To connect these units directly to an un-powered,
isolated construction site TemPower panel, have your
electrician connect to the control panel using a 120/240
Volt, 4-wire twist-lock plug (C6365).
NOTE: To use the 120/240 Volt L14-30 receptacle to wire
into a building, make sure the transfer switch is compatible
for GFCI protected generators.
2. If the generator set is connected to an existing
distribution system, a fully isolated manual transfer switch
must be installed. The transfer switch must be compatible
with GFCI protected generators. The transfer switch
prevents damage to the generator and the other circuit
components if main line power is restored while the
generator is connected. Installing a transfer switch also
permits the use of normal fusing.
3. Many homes and construction sites are wired for at least
60 to 100 Amp entrance service, much greater than the
capacity of this portable generator. When installing the
generator at these sites, a secondary emergency
distribution panel may have to be installed. The
emergency distribution panel must be installed by a
licensed electrician according to all applicable codes. The
electrician will move the critical circuits to be powered
during the outage to the emergency panel. Keep in mind
only a limited amount of amperage is available from the
generator set. Some circuit breakers may still have to be
turned off to prevent an overload on the generator
during the initial start up. See the nameplate on your
generator for the amperage capabilities of your unit.
CAUTION: EQUIPMENT DAMAGE
Failure to properly limit and balance the load applied to
the generator will cause the generator to produce low
voltage and may damage the engine generator set. It may
also cause severe damage to the loads connected to the
generator at that time. Improper loading of the generator
set constitutes abuse and will not be covered by warranty.
to the receptacle and generator ratings. The nameplate
rating can be obtained through a single receptacle as long
as the receptacles amperage rating is not exceeded.
GROUNDING
Proper grounding of your generator is application
dependent. Carefully evaluate your planned use of your
generator to understand which grounding you require.
If you are not sure what to do, contact a competent
professional to assist you. The NFPA 70 250:34-35 are good
technical references.
STANDARD PORTABLE GENERATOR
Your WINCO portable generator ships with a bonded
neutral. You can safely use this generator without external
grounding as long as all loads are powered through the
receptacle panel.
VEHICLE-MOUNTED GENERATOR
Your WINCO portable generator ships with a bonded
neutral. When mounted to a vehicle to safely distribute
power it is necessary that the generator frame is bonded
to the vehicle frame. The generator should only supply
equipment that is cord and plug connected through
receptacles mounted on the generator or the vehicle.
PERMANENTLY INSTALLED GENERATORS
This WINCO portable generator ships with a bonded
neutral and overcurrent protection. NFPA 70 refers to this
as a “separately derived system.” When connecting it to a
building a transfer switch specifically designed for GFCI and
bonded neutral generators is required.
WIRING
Plug your tools such as drills, saws, blowers, sump pump,
and other items to be powered directly into the generator
receptacles. Before plugging in all the tools and cord
sets, recheck the rating of the generator set. Be sure it
can handle the intended load and is compatible with the
voltage, phase, and current ratings. ‘Hard wiring’ this unit
directly into a temporary construction site electrical system is
NOT A SIMPLE DO-IT-YOURSELF JOB. For your safety, all
wiring must be done by a qualified electrician and conform
to the National Electric Code and comply with all state and
local codes and regulations. Check with local authorities
before proceeding.
WARNING: PERSONAL DANGER
A fully isolated, interlocking manual transfer switch must
be installed any time a generator is being connected to an
existing distribution system.
1. These engine-generator sets are designed for portable
heavy duty commercial use. Receptacles are provided on
the control panel to permit 120 and 240 Volt portable
appliances and tools to be plugged directly into them.
Please note that the 3-wire 240 Volt receptacle(s) on
these units are designed to power only 240 Volt tools.
There are two hot leads and a ground wire, but no
neutral connection, in the 3-wire 240Volt receptacle. A

13 OPM-168/A
The engine will govern itself at full speed. Intentionally
overriding the governor and operating the generator at
low voltage may damage both the generator and any load
connected to it. Running the engine at excessively high
speeds results in high voltage, which may significantly
shorten the life of light bulbs and appliances being used, as
well as possibly damaging the engine.
CAUTION: EQUIPMENT DAMAGE
SPEED ADJUSTMENTS SHOULD ONLY BE MADE BY A
QUALIFIED SERVICE TECH. Whenever making any speed
adjustments, check the YourGen meter and be sure the
voltage and speed are correct.
Output voltage should be checked periodically to ensure
continued proper operation of the generating plant and
appliances.
Hz -
This is the measured frequency of the generator set. See
the table in the RPM section above for an explanation of
voltage and frequency ranges under load.
V1 -
Output voltage of Line 1 (L1 on panel) to neutral. See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
V2 -
Output voltage of Line 2 (L2 on panel) to neutral. See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
V1-V2 -
Output voltage of Line 1 (L1) and Line 2 (L2). See the
Load vs. Output table for an explanation of voltage and
frequency ranges under load.
Hours -
This displays the total running hours of the generator set.
When the generator is turned off, the hours will remain
displayed. The display is run on a CR2032, ten-year battery.
Once the unit is running, the battery connected to the unit
will then supply the power to the YourGen meter.
Load Bars -
These bars indicate how much load is being used on Line 1
(L1) and Line 2 (L2).
= 1-25% = 25-50% = 50-75% = 75-100%
It is good practice to monitor the YourGen Meter when
applying load. This will ensure the generator is balanced.
Balanced Unbalanced
120 Volt and 120/240 Volt receptacles are provided for
connection to various loads.
YOURGEN
The WINCO YourGen meter allows you to see useful
information about your generator from the front panel
by displaying RPMs, Voltage, frequency, load, hours, and
maintenance reminders. It also has the ability to display
warnings if any parameter gets outside of normal operation
range.
Cycle Button ( ) -
During normal operation, the display will toggle through
on fixed delay. If you want to see any specific item, you
can press the cycle button to move it to that setting. Once
the display is selected, the delay before it starts toggling is
approximately 5 seconds. This button is also used to reset
maintenance reminders.
RPM -
The meter will display the RPMs of the engine. This number
is calculated based upon frequency and is not directly
measured from the engine. The engine-generator must be
run at the correct speed in order to produce the proper
electrical voltage and frequency.
CAUTION: EQUIPMENT DAMAGE
The output voltage should be checked to ensure the
generator is working properly prior to connecting a load
to the generator. Failure to do so could result in damage
to equipment plugged into the unit and possible injury to
the individual.
Operating Speed -
All engines have a tendency to slow down when a load
is applied. When the electrical load is connected to the
generator, the engine is more heavily loaded, and as a
result, the speed drops slightly. This slight decrease in speed,
together with the voltage drop within the generator itself,
resulting in a slightly lower voltage when the generator
is loaded to its full capacity than when running no load.
The slight variation in speed also affects the frequency
of the output current. This frequency variation has no
appreciable effect in the operation of motors, lights, and
most appliances. However, electronic equipment and clocks
will be affected if correct RPM is not maintained. See Load
vs. Output chart.
Although individual units and models vary slightly, the
normal voltage and frequency of the engine-generator
described in this manual are approximately as follows,
under varying loads:
LOAD vs. OUTPUT
Generator
Load
Speed
(RPM)
Frequency
(Hz)
Voltage
None 3600 60.0 125 V
Half 3600 60.0 120V
Full 3510 58.5 115V

14
OPM-168/A
The following diagram represents this 11,760 watt (rated
output) generator. A & B represent the 120 volt output legs
of this generator. Up to 5,880 watts at 120 volts (58 Amps)
can be drawn from the receptacles attached to either A
or B output legs. This generator is capable of producing
58 Amps of 240 volt current at C. Check the appliance
or tool nameplates for the current and voltage to insure
compatibility. Remember that power taken from C reduces
the power available equally at both A and B and vice versa.
Change Oil Warning -
After the first 50 hours, the engine oil should be changed.
The YourGen meter will light up the oil icon ( ) and the
word ‘change’ will flash. Once the oil has been changed,
press and hold the cycle button for approximately 5
seconds until the warning has been removed from the
display to reset the warning. The meter will then remind
you of oil changes on the appropriate schedule for your
generator. It is important to remember that the engine
manufacturer recommends changing the oil on a calendar
schedule even if the total number of operational hours have
not been reached. Certain operating environments may
also require more frequent oil changes.
Alarms -
The display will start blinking and toggle to the first
parameter that is out of specification. The panel will remain
flashing until the fault condition returns to within the
acceptable range, see following table.
Acceptable Range
Frequency 57-63 Hz
Voltage 110VAC-130VAC
VAC1-VAC2 220VAC-260VAC
Battery -
When the unit is off, the YourGen meter will display the
hours continuously using a coin cell back-up battery inside
the meter.
Voltage 3.0V DC
Battery Type CR2032
Lifetime 10 Years
The battery has a 10 year lifetime, in the event you need to
change the battery, follow these instructions:
The battery is located in the control box near potentially live
AC terminals. To prevent electrocution while changing the
battery disable the unit by disconnecting the main battery,
spark plug wire and then open the receptacle panel. Locate
the backside of the YourGen meter. Gently pry the back
plate off using the slot located on top.
Once open, the battery will be located at the top. Using a
needle nose plier, carefully pull out the battery.
Replace the battery having the POSITIVE (+) side down.
Ensure the battery is secured between the battery
connections.
Replace the back plate of the meter and close the receptacle
panel using the screws to secure it. Reconnect the unit’s
main battery.
Battery
Install Battery Between These Two Points

15 OPM-168/A
ENGINE CARE
MAINTENANCE SCHEDULE
WARNING: PERSONAL INJURY
Failure to follow proper maintenance guidelines and
precautions of your generator can cause serious injuries or
death.
If major engine service or repair is required, contact an
authorized engine service center. The manufacturer of
these engines has established an excellent world-wide
engine service organization. Engine service is very likely
available from a nearby authorized dealer or distributor.
See following table.
Every 8 Hours or Daily
Check oil level
Clean area around muffler and controls
Every 100 Hours or Annually
Replace spark plugs
Change engine oil & replace filter
Check air-filter, replace if necessary
Check exhaust system
Every 250 Hours or Annually
Check valve clearance, adjust if necessary
Every 400 Hours or Annually
Replace air filter
Replace fuel filter
Service air cooling system
Clean the oil cooler fins
The frequency between maintenance intervals is a function
of the environmental conditions and product wear/
efficiency. After long periods of inactivity of the engine,
carry out the checks before starting the engine.
After performing all maintenance operations that require
disconnection of the batteries, make sure the clamps have
been securely reconnected on the poles.
CHECKING THE OIL LEVEL
The oil level must always be checked before the engine is
started. Refer to page 8 of this manual for instructions on
checking the oil level. Take care to remove any dirt or debris
from around the oil plug before removing. Be sure the oil
level is maintained.
CHANGING THE OIL
Refer to the Maintenance Schedule Chart for required oil
change intervals.
Outdoor temperatures determine the proper oil viscosity for
the engines. Winco recommends our 5W-30 fully synthetic
oil to give you excellent protection in cold temperatures
while maintaining excellent performance in warmer
weather
1. Start the engine and warm it up, stop the engine and
remove the spark plug wire to prevent it from
accidentally being started.
2. This engine has an oil drain valve for your convenience.
Attach a neoprene hose and drain the oil into an
approved container.
3. Remove the oil filter and dispose of it properly.
4. Before you install the new oil filter, clean the filter
mounting base and coat the seal of the new oil filter
with clean engine oil.
5. Install the oil filter by hand until the gasket contacts the
oil filter adapter, then tighten the oil filter 1/2 to 3/4
turns.
6. Replace oil drain bolt making sure the sealing washer is
in place.
7. Remove the oil fill plug and refill with new oil. Make
sure to use the proper grade oil based on your
operating temperature.
NOTE: This engine requires 48 ounces (1.5 quarts) of oil if it
is completely drained. Use caution when refilling the engine
as some residual oil may have remained in the engine.
Always use the dipstick when filling the engine with oil to
prevent overfilling.
8. Replace fill plug.
9. Start the engine and warm it up.
10. After warming up the engine, recheck the oil level
and refill as necessary to bring it to the proper level.
DUAL ELEMENT AIR FILTER
Clean and/or replace the foam pre-cleaner and the air filter
annually or every 100 hours. Service more often under
dusty conditions.
WARNING: EQUIPMENT DAMAGE
Never start or run the engine with the air filter removed.
1. Open fasteners (A) and
remove cover (B).
2. Remove the nut (D) and
retainer (E).
3. Remove the air filter (F).
4. Remove the pre-cleaner (G)
from the air filter (F).
5. To loosen debris, gently tap the
air filter (F) on a hard surface.
If the air filter is excessively dirty
replace with a new filter. You
can use pressurized air
(not to exceed 30 psi) to clean
the filter. Always blow the compressed air from inside
to the outside.
6. Wash the pre-cleaner (G) in liquid detergent and water.

16
OPM-168/A
Then allow it to thoroughly air dry. DO NOT oil the pre-
cleaner.
7. Install the pre-cleaner (G) to the air filter (F).
8. Assemble the dry pre-cleaner (G) to the air filter (F).
9. Install the air filter (F)
10. Install the cover (B) and secure with the fasteners (A).
SPARK PLUG
CAUTION: EQUIPMENT DAMAGE
Incorrect spark plugs can damage the engine.
CAUTION
A loose spark plug can overheat and damage the engine.
Replace annually or every 100 hours of operation. Always
replace with the same spark plug that came in the engine
and check gap before installing. Spark plug gap is 0.030”.
Poor spark will also occur if spark plug wire does not fit
firmly on spark plug. If this happens, reform the terminal to
fit firmly on spark plug tip.
CARBON CANISTER
Designed to collect, store, and dispose of fuel vapors
created in the fuel tank/fuel system. The canister should last
the life of the unit as long as it stays dry.

17 OPM-168/A
GENERATOR CARE
Proper care and maintenance of the generator is necessary
to ensure a long trouble free life.
EXERCISING THE GENERATOR
The generator should be operated every three to four
weeks. It should be operated for a period of time sufficient
to warm the unit up and to dry out any moisture that has
accumulated in the windings. If left, this moisture can cause
corrosion in the winding. Frequent operation of the engine-
generator set will also ensure that the set is operating
properly should it be needed in an emergency.
GENERATOR MAINTENANCE
Any major generator service, including the installation
or replacement of parts, should be performed only by a
qualified electrical service technician. USE ONLY FACTORY
APPROVED REPAIR PARTS.
A. Bearing - The bearing used in these generators is a
heavy duty, double sealed ball bearing. They require
no maintenance or lubrication.
B. Receptacles - Quality receptacles have been utilized. If a
receptacle should become cracked or otherwise
damaged, replace it. Using damaged or cracked
receptacles can be both dangerous to the operator
and destructive to the equipment.
CLEANING
Remove dirt and debris with a cloth or brush.
CAUTION: EQUIPMENT DAMAGE
DO NOT use high pressure spray to clean either the
engine or the generator. The high pressure spray
could contaminate the fuel system and the generator
components.
1. Keep the air inlet screen on both the engine and
generator free of any dirt or debris to ensure proper
cooling. At least yearly, remove the blower housing on
the engine and clean the chaff and dirt out of the engine
cooling fins and fly wheel. Clean more often if necessary.
Failure to keep these areas clean may cause overheating
and permanent damage to the unit.
2. Periodically clean muffler area to remove all grass, dirt,
and combustible debris to prevent a fire.
3. On engine mufflers equipped with spark arresters, the
spark arrestor must be removed every 50 hours for
cleaning and inspection. Replace if damaged.

18
OPM-168/A
TROUBLESHOOTING
Problem Possible Causes
Won’t start Low oil level
Fouled spark plug
Out of fuel
Start switch in OFF position
Fuel Valve turned off
Plugged fuel filter
Blown fuse in key switch
Weak or dead battery
Voltage too low Engine speed is too low
Generator overloaded
Defective stator
Defective rotor (field)
Defective capacitor
Circuit breaker trips Defective load
Defective receptacle
Excessive load
Voltage too high Engine speed is too high
Generator overheating Overloaded
Insufficient ventilation
No output voltage Short in load (disconnect)
Tripped or defective circuit breaker
Broken or loose wire
Defective receptacle
No residual magnetism (in
generator)
Defective stator
Defective rotor (field)
Defective Capacitor
Shorted diodes on rotor
GFCI receptacle tripped

19 OPM-168/A
G1
G3
G3
N
N
N
N
N
N
N
G3
G3
G3
G3
G3
G3
G3
G3
G1
G1
G1
G1
G1
G1
G
G
G
G
G
G
G1
G1
G1
G1
G1
RECEPTACLE WIRING DIAGRAM

20
OPM-168/A
WINCO Incorporated warrants to the original purchaser for the warranty period that goods manufactured
or supplied by it will be free from defects in workmanship and material, provided such goods are installed
operated and maintained in accordance with WINCO written instructions.
WINCO’s sole liability, and Purchaser’s sole remedy for a failure under this warranty, shall be limited to the repair
of the product. At WINCO’s option, material found to be defective in material or workmanship under normal
use and service will be repaired or replaced. For warranty service, contact a Winco Authorized Service Center
within the warranty period from date of purchase.
*NOTE: Units that are resold by original owner are not covered under this warranty. Any further warranty,
whether expressed or implied, rests solely with the reseller.
THERE IS NO OTHER EXPRESS WARRANTY.
To the extent permitted by law, any and all warranties, including those of merchantability and fitness for a
particular purpose, are limited to the warranty period from date of purchase. In no event is WINCO liable for
incidental or consequential damages.
Note: Some states do not allow limitation on the duration of implied warranty and some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitations may not apply in every
instance. This warranty gives you specific legal rights which may vary from state to state.
WINCO, INC. WARRANTY EFFECTIVE DATE
Air cooled units purchased for stock have 1 year to be sold. The warranty to the original retail customer
commences on the date of sale of the product to them. All liquid cooled units have 180 days from the Winco
invoice to submit a start up date. If no startup form is submitted, then warranty period starts on the Winco
invoice date unit was sold.
Date of sale is defined as the day the customer takes delivery of the product. This warranty shall remain in effect
to the original purchaser for the period stated on the sales literature. The warranty is not transferable and the
retail customer must retain his original bill of sale as proof of purchase date.
WINCO, Inc. agrees to the following obligations during the warranty period:
1. To warrant any defect in material or workmanship of products sold under the WINCO and DYNA brand
names in accordance with the warranty statements in the operator’s manuals.
2. To reimburse authorized WINCO, Inc. Service Centers/Dealers for the cost of parts plus standard ground
UPS shipping charges for all valid warranty repairs and to reimburse same said service centers/dealers for
reasonable labor charges based on WINCO’s current warranty labor reimbursement rate.
3. To furnish its authorized service centers/dealers with the necessary parts to make the repairs. WINCO
Generator Warranty Periods & Restrictions
WINCO GENERATOR WARRANTY PERIODS & RESTRICTIONS
Industrial Portables
WL Models - 3 Years, See Notes 1 & 2
W Models - 3 Years, See Notes 1, 2, & 5
DP Models - 3 Years, See Notes 1 & 2
HPS Models - 2 Years, Home Use ONLY; Commercial use* is 90 Day Warranty, See Note 1
EMERGEN-C (EC) Series
2 Years, See Note 1
DE Series
1 Year/2000 hours, No Travel Time
Mobile Diesel Series
1 Year/2000 hours, No Travel Time
PTO Series
15kW & 10kW - 1 Year, Limited Farm Standby Only
25kW thru 165kW - 3 Years, Limited Farm Standby Only/Commercial use* 1 Year
Two Bearing Series
1 Year, Bench Labor and Parts only
Gaseous/Packaged Standby Series (PSS)
Air-Cooled Models (PSS8, PSS12, & PSS20) – 2 Years/2000 Hours Standby Only See Notes 3 & 4 Prime Power use 1
Year/2000 Hours See Notes 3 & 4
Liquid-Cooled Models (PSS21 - PSS150) - 2 Years/2000 Hours Standby Only See Notes 3 & 4 Prime Power use 1 Year/2000
Hours See Notes 3 & 4
LIMITED WARRANTY