Page 1
W10PTOS/A
W15PTOS/F
GENERATORS
INSTALLATION AND
OPERATORS
WINCO INC. 225 S. CORDOVA AVE. LE CENTER, MN 56057 507-357-6821
MANUAL
SERVICE DEPT. 507-357-6831
www.wincogen.com
Page 2
TABLE OF CONTENTS
SAVE THESE INSTRUCTIONS 2
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 on this unit, it will help us to
respond to your needs faster.
INTRODUCTION 3
SPECIFICATIONS 3
W10PTOS
W15PTOS
SAFETY 3
IMPORTANT SAFETY INSTRUCTIONS
ANSI SAFETY DEFINITIONS
TESTING POLICY 4
PREPARING THE UNIT 4
UNPACKING
INSTALLATION 4
FOUNDATION MOUNTING
TRAILER MOUNTING
THREE-POINT HITCH KIT
ELECTRICAL CONNECTIONS 5
PRE-START CHECKS 7
GENERATOR STARTING PROCEDURE 8
STORAGE & MAINTENANCE 8
MAINTENANCE REQUIREMENTS
MODEL __________________________________________________
SERIAL NUMBER _________________________________________
PURCHASE DATE _________________________________________
DEALER NAME ___________________________________________
DEALER PHONE # ________________________________________
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed
during installation and maintenance of the generator. Read and
understand all instructions in the manual before starting and operating
the generator.
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.
TROUBLE SHOOTING TABLE 9
WIRING DIAGRAMS 10
12 MONTH LIMITED WARRANTY 12
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.
60706-241
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INTRODUCTION
SPECIFICATIONS
The WINCO rotating eld power take-off generators are designed
primarily for hobby/small farm use as a standby electrical power supply,
utilizing the power take-off of a tractor or truck as the prime mover.
This PTO drive generator will provide 120/240V single phase, 60Hz
electrical service when properly driven.
NOTE: The prime mover which drives the generator must be capable
of delivering approximately 2 HP per 1000 watts output from the
generator. Observe input RPM specications.
This generator may be mounted in many different fashions. The three
most popular are foundation mounted, trailer mount or 3-point hitch
mounted. Your application will dictate how you may want to mount it.
This generator includes a color coded voltmeter to warn against high
or low voltage, and two output power receptacles with individual
circuit breakers for your protection. To reduce maintenance problems,
the coupling between the generator input shaft and rotor consists of
precision helical gearing rather than a chain link drive.
IMPORTANT:
THE MANUFACTURER STRONGLY RECOMMENDS RUNNING THE
GENERATOR UNDER LOAD AT LEAST ONCE A MONTH IN ORDER
TO EVAPORATE ANY ACCUMULATED MOISTURE CONDENSATION
AND TO KEEP THE UNIT IN GOOD WORKING ORDER.
W10PTOS
Watts 10,000
Amps 41.6
Input Speed 515 RPM
Generator Speed 3600 RPM
Input Shaft 1 3/8” - 6 spline
Required Tractor PTO HP 20
Gear Lube
Volume 16 oz
Type 85/90W-140
W15PTOS
Watts 15,000
Amps 62.5
Input Speed 515 RPM
Generator Speed 3600 RPM
Input Shaft 1 3/8” - 6 spline
Required Tractor PTO HP 30
Gear Lube
Volume 16 oz
Type 85/90W-140
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60706-241
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SAFETY
B. Keep your neighbors in mind when permanently installing this
equipment.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important information that should be understood
and followed before the installation, operation and maintenance of the
generator. Failure to follow the safety instructions in this manual could
result in serious injury or death. Keep this manual available for future
reference.
ANSI SAFETY DEFINITIONS
DANGER:
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury. This signal word is to be
limited to the most extreme situations.
WARNING:
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION:
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may be used to alert
against unsafe practices.
NOTE: CAUTION is also used on the unit labels and in this manual to
indicate a situation that could result in serious damage or destruction of
the equipment and possible personal injury.
1. ELECTRIC SHOCK -
The output voltage present in this equipment can cause a 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-prong grounded plugs and extension cords.
F. Be sure the unit is properly grounded to an external ground rod
driven into the earth.
2. FIRE HAZARD -
A. Keep a re extinguisher nearby and know its proper use. Fire
extinguishers rated ABC by NFPA are appropriate.
3. 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.
4. CLEANLINESS -
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 re hazard.
C. Carefully clean up any gas or oil spills before starting the unit.
5. SERVICING EQUIPMENT -
All service, including the installation or replacement of service parts,
should be performed only by a qualied technician.
A. Use only factory approved repair parts.
B. Do not work on this equipment fatigued.
C. Use extreme caution when working on electrical components.
High output voltages from this equipment can cause serious
injury or death.
D. Installing a generator is not a “do-it-yourself” project. Consult
a qualied, licensed electrician or contractor. The installation
must comply with all national, state, and local codes.
6. INSTALLATION -
Installing a PTO generator is not a “do-it-yourself” project. Consult
a qualied, licensed electrician or contractor. The installation must
comply with all national, state, and local codes.
A. Never operate the PTO drive generator without having it
properly mounted to a concrete base or approved trailer.
b. Never connect the PTO generator to an existing electrical
system without installing an isolation transfer switch.
C. Always insure the drive shaft is straight and level before
operating the generator.
8. OPERATION - PTO drive shafts (tumbling bars) have many inherent
dangers, extreme caution must be exercised when using them.
A. NEVER allow children around the drive shaft when it is in
operation.
B. Keep all safety guards and shields in place and securely
tightened.
C. Never operate a drive shaft that has been damaged or had the
safety shield removed.
D. Never step over a drive shaft while it is running.
E. Never wear a necktie, loose articles of clothing, or anything else
that can be caught in moving parts.
F. Never try to stop drive shaft with your hand or your foot.
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the trailer should enable aligning the drive shaft (tumbling bar)
in a straight or nearly straight line between the power take-off
and generator input shafts. Misalignment must be less than 10
degrees during generator operation, even though the mechani-
cal design of the tumbling bar would allow greater misalign-
ment.
D. The generator mounting area of the trailer bed should be
flat.
All four generator mounting pads must rest firmly on the trailer
bed. Install shims if necessary to even out the bed under the
mounting pads, then bolt the generator firmly in place.
WINCO THREE POINT HITCH
Optional 3-Point Hitch Part Number TPH240
WARNING: Personal Injury & Equipment Damage
WHEN USING THE 3-POINT HITCH ASSEMBLY ALL THREE
POINTS MUST BE ATTACHED TO THE TRACTOR. FAIL-
URE TO DO SO WILL CAUSE THE GENERATOR TO TIP
WHEN LIFTING IT DAMAGING BOTH THE T-BAR AND THE
GENERATOR.
A. The three point hitch must be attached to the tractor at all
times during operation.
B. When operating the generator the three point hitch and
generator must be sitting on flat level ground. All four deck
pads must be in constant contact with the ground at all
times. This will reduce the vibration in both the generator
and the tumbling bar.
C. For safety the generator must be bolted to the three point
hitch deck using all four mounting bolts
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 and altitude.
E. For dimensions needed for install for your specic generator, please
refer to it’s outline drawing. The hardware needed is dependent on your
distinct application.
F. The generator mounting bracket must rest evenly and rmly on the
foundation. Install shims if necessary to even out the foundation under
the mounting pads then bolt the generator rmly in place.
TRAILER MOUNTING
Optional Trailer Part Number TDM76
PREPARING THE UNIT
UNPACKING
CAUTION: EQUIPMENT DAMAGE
When you unpack your new generator, be sure to remove all of the
information sheets and manual 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 le 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 specication pages in this
manual to ensure that this unit meets your job requirements.
INSTALLATION
FOUNDATION MOUNTING
Mount the generator on a foundation if it is to be used as a permanent
or standby power source. When planning a foundation consider the
following points:
Mount the generator on a trailer if you plan to use it as a portable
power source. When selecting or building a trailer to mount the
generator, consider the following points:
A. The trailer construction must be strong enough to support the
generator.
B. The design of the trailer must enable the trailer to remain stable
during operation, and to resist tipping caused by generator starting and
reected load torque.
C. The trailer height and mounting position of the generator on the
trailer should enable aligning the drive shaft (tumbling bar) in a straight
or nearly straight line between the power take-off and generator input
shafts. Misalignment must be less than 5 degrees during generator
operation, even though the mechanical design of the tumbling bar
would allow greater misalignment.
D. The generator mounting area of the trailer bed should be at.
All four generator mounting pads must rest rmly on the trailer bed.
Install shims if necessary to even out the bed under the mounting pads,
then bolt the generator rmly in place.
WARNING: PERSONAL INJURY & EQUIPMENT DAMAGE
Trailer may tip over and cause injuries if wheels are not spaced far
enough apart.
A. The foundation location should enable aligning the drive shaft
(tumbling bar) in a straight or nearly straight line between the power
take-off and the generator input shaft. Misalignment must be less than
5 degrees during generator operation, even though the mechanical
design of the tumbling bar would allow greater misalignment.
B. The foundation must be solid enough to absorb generator starting
and reected load torque during operation.
C. The foundation surface should be at.
D. Space is required around the generator for mounting switching
devices, making connections, and for servicing.
THREE-POINT HITCH KIT
Optional 3-Point Hitch Part Number TPH241
WARNING: PERSONAL INJURY & EQUIPMENT DAMAGE
When using the 3-point hitch assembly all three points must be
attached to the tractor. Failure to do so will cause the generator to tip
when lifting it damaging both the t-bar and the generator.
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60706-241
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A. The three point hitch must be attached to the tractor at all times
the trailer should enable aligning the drive shaft (tumbling bar)
in a straight or nearly straight line between the power take-off
and generator input shafts. Misalignment must be less than 10
degrees during generator operation, even though the mechani-
cal design of the tumbling bar would allow greater misalign-
ment.
D. The generator mounting area of the trailer bed should be
flat.
All four generator mounting pads must rest firmly on the trailer
bed. Install shims if necessary to even out the bed under the
mounting pads, then bolt the generator firmly in place.
WINCO THREE POINT HITCH
during operation.
switch must in all cases be equal to or greater than the rating of the
entrance rated breaker.
B. When operating the generator the three point hitch and generator
must be sitting on at level ground. All four deck pads must be in
constant contact with the ground at all times. This will reduce the
vibration in both the generator and the tumbling bar.
C. For safety the generator must be bolted to the three point hitch deck
using all four mounting bolts.
ELECTRICAL CONNECTIONS
The second way to install the system is to purchase and install an
emergency distribution panel and move the circuits you wish to back
up to the new distribution panel. In this case the manual transfer switch
only has to be sized to the amperage of the circuit breaker in the main
distribution panel that is feeding it.
Before deciding which system to install, rst determine which loads you
can safely run on your PTO generator and the cost of buying a large
manual transfer switch versus the cost of a smaller switch and the
additional distribution panel.
The nal item that you are going to have to assemble/wire is the plug
that will be used to connect the generator to the manual transfer
switch. You should have found this load plug in a small box when you
unpacked the PTO generator. If you need additional plugs for multiple
sites you can order additional plugs from your Winco dealer, the part
number is “300137”.
WARNING: PERSONAL INJURY:
Disconnect power before wiring.
IMPORTANT:
Use copper wire only. Do NOT use tinned conductors. Sizing cable
- see NEC 400-5
CAUTION:
Only qualied electricians should install electrical wiring. Wiring must
conform to all applicable national, state, and local codes. (Reference:
National Fire Protection Association Manual No. 70, National Electrical
Code.)
DANGER: PERSONAL INJURY:
If the generator is to be used as a standby power source,, a manual
transfer switch must be installed to separate the generator and the
commercial power lines. The switch must isolate the generator from the
commercial power lines and the load when the generator is on standby,
and must isolate the commercial power lines from the load and the
generator when the generator is supplying power. See the following
diagrams.
A properly rated and installed double throw manual power isolation
transfer switch must be used with a standby generator. The transfer
switch isolates the load from the power line and allows you to safely
operate your loads without endangering the power line repair crew. See
previous diagrams
The load, connected to the normal terminals of the transfer switch, is
energized by the normal power line when the switch is in the normal
position. The generator, connected to the emergency terminals of the
switch, furnishes power when the switch is in the emergency mode
position.
There are two ways to install a manual transfer switch. The rst is
to install the switch between the watt-hour meter and the normal
distribution panel. As with any system you must install an entrance
rated breaker before the manual transfer switch. The manual transfer
60706-241
Cord size: #4/4 conductor cord SO, 1.25” dia. max.
To assemble and wire the load disconnect plug, proceed as follows:
1. Strip outer jacket 2-3/4”.
2. Cut and strip leads to lengths specied for the particular plug.
3. Disassemble cable clamp and top cover.
4. Remove one blade at a time, insert the stripped end of the
appropriate colored wire designated above, and tighten the set
screw.
5. Fit blades through slots in bottom cover and push down until
home. Please note: Make sure blades are in correct slots and
oriented in accordance with the diagram above or you will not be
able to close the top cover fully.
6. Place top plastic cover over assembly and partially tighten the
bakelite assembly screw. Realign blades straight (so they t into
the top bakelite housing properly) and tighten the assembly
screw.
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7. Assemble cable clamp over the outer jacket of the wire and
DANGER: PERSONAL INJURY
IF THE GENERATOR IS TO BE USED AS A STANDBY
POWER SOURCE, A MANUAL TRANSFER SWITCH
MUST BE INSTALLED TO SEPARATE THE GENERATOR
AND THE COMMERCIAL POWER LINES. THE SWITCH
MUST ISOLATE THE GENERATOR FROM THE COM-
MERCIAL POWER LINES AND THE LOAD WHEN THE
GENERATOR IS ON STANDBY, AND MUST ISOLATE
THE COMMERCIAL POWER LINES FROM THE LOAD
AND THE GENERATOR WHEN THE GENERATOR IS
SUPPLYING POWER. SEE FIGURE 6
tighten the two clamp screws. Special Note: For small size round
(less than 3/4”) and at cables, the wire clamp may be inverted.
Typical Connection Methods for Generator Power Service
WARNING: PERSONAL INJURY:
Failure to wire as instructed may cause personal injury or damage to
device or equipment. To be installed or checked by an electrician or
qualied person only.
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60706-241
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PRE-START CHECKS
to warm it up before proceeding, so that it will run smoothly
and achieve full power under generator load.
3. With engine idling, engage the power take-off drive.
4. Watch the voltmeter on the generator and slowly increase
engine speed until the output reaches approximately 240 to
245 volts, in green portion of voltmeter scale.
5. Plug 4 wire load cord set into receptacle. Place transfer
switch in the emergency position.
6. Place the load circuit breaker in the “on” position. If the
breaker trips, move manual transfer switch to “off” or
normal position. Check for short circuit or grounded
connection in the load cable to the double throw switch and
repair. A breaker that trips from overload or short circuit
must be reset by moving to “off” before reclosing.
7. With engine and generator running smoothly, switch on the
electrical load while watching the voltmeter. Readjust en-
gine throttle to keep generator output under load at 240V
WARNING: PERSONAL INJURY:
When working on or around these generators, do NOT wear loose
tting clothing or any articles that may get caught in moving parts.
WARNING: PERSONAL INJURY:
Make sure that all tumbling bar lock pins are engaged and that all
safety shields are in place before operating the PTO generator.
5. Make sure no binding exists in generator or gear box. If binding is
found, locate the cause and correct it before proceeding.
1. Visually inspect the generator. Check for:
a. Correct mounting.
b. Physical damage.
c. Debris in cooling vents and screens. (Could cause generator to
overheat)
IMPORTANT:
The manufacturer recommends that, if the generator has been stored
for any length of time, before using it, the operator remove the control
box cover and cooling fan screen, then inspect the generator for rodent
nests or other objects that could cause generator binding and/or
overheating. See ‘Cleaning’ portion of the Maintenance section.
2. Check Gearcase oil level. (See drawing) Case should be lled with
oil to plug marked ‘OIL LEVEL’. Fill or remove oil as required.
NOTE: Either too little or too much
oil can harm the equipment.
See ‘Lubrication” portion of
Maintenance for oil specications.
3. Make sure the drive shaft (tumbling bar) is assembled with its
universal joint knuckles “synchronized,” as illustrated in Figure 7. If
knuckles are not synchronized, the bar will chatter when rotating, which
will cause the generator output voltage to icker. Drive shafts shipped
new from Winco are always synchronized and tethered so they can not
be taken apart.
6. Make sure that the electrical loads to be driven by the generator will
not draw more current than the ratings of the generator receptacle or
cord set which will supply the current.
7. Check all electrical connections in the system to be energized by the
generator. Make sure the connections are correct and are tight.
8. Make sure all loads are turned off. Do not start the generator under
load.
9. Verify any special conditions specic to your application.
GENERATOR STARTING PROCEDURE
1. Set the manual transfer to mid or normal (up) position.
2. With the power take-off drive disengaged, start the engine which will
drive the generator. Run the engine long enough to warm it up before
proceeding, so that it will run smoothly and achieve full power under
generator load.
3. With engine idling, engage the power take-off drive.
4. Watch the voltmeter on the generator and slowly increase engine
speed until the output reaches approximately 240 to 245 volts, in green
portion of voltmeter scale.
CAUTION: EQUIPMENT DAMAGE:
Most electrical equipment in North America operates satisfactorily at
frequencies between 59 and 61 Hz (cycles per second). Operating the
generator at frequencies outside that range may cause damage to the
generator and/or to electrical equipment driven by the generator.
DANGER: PERSONAL INJURY:
Power take-off must be disengaged at this time.
4. Couple the tractor to the generator with the drive shaft (tumbling
bar). Couple the tumbling bar to the generator input shaft rst, then to
the power take-off shaft. Check alignment, tractor, power take-off shaft
(tumbling bar), and generator input shaft should form a straight (or
nearly straight) line, with less than 5° misalignment between the shafts.
Misalignment will cause generator output voltage to icker.
60706-241
5. Plug 4 wire load cord set into receptacle. Place transfer switch in the
emergency position.
6. Place the load circuit breaker in the “on” position. If the breaker trips,
move manual transfer switch to “off” or normal position. Check for short
circuit or grounded connection in the load cable to the double throw
switch and repair. A breaker that trips from overload or short circuit
must be reset by moving to “off” before re-closing.
7. With engine and generator running smoothly, switch on the electrical
load while watching the voltmeter. Readjust engine throttle to keep
generator output under load at 240V (in green portion of voltmeter
scale). If engine is equipped with speed governor, it may automatically
readjust the throttle as the load changes and keep the generator output
at the proper level. However, some governors are not sensitive enough
to maintain proper output under changing load, and in such cases the
throttle will have to be manually readjusted.
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CLEANING
1. Inspect for loose or broken wiring connections. Make sure
that wiring connections are not loose at the generator end,
circuit breakers, and receptacles.
2. Do not allow dirt or chaff to collect in the interior of the
generator or the ventilation openings. Inspect for indica-
tion of the entrance of mice or insects into the generator.
The inlet and outlet openings are louvered, but possible
damage to the louvers could occur. Mice can destroy the
generator winding.
NOTE: EQUIPMENT DAMAGE:
If the load includes motors turn them on one at a time, highest starting
current motor rst, next highest second, etc
CAUTION: EQUIPMENT DAMAGE
Do not overll generator gear case. Overlling causes overheating and
oil seal failure.
8. The return of normal power will be indicated by the lamp on the front
of transfer switch; (applicable only when the transfer switch is equipped
with indicating lamps or your electrician has installed them). After
sufcient time to assure that power restoration isn’t temporary, return
the transfer switch to normal power (10 - 20 minutes).
9. Place the alternator circuit breaker in “off” position. Do not remove
plug before opening the breaker.
10. Slowly reduce power take-off speed to a minimum and disengage
the power take-off. Some tractors have a brake on the power take-off
that stops the shaft instantly. Stopping the alternator rotor instantly from
rated speed may result in a broken shaft or other drive line failures.
WARNING: PERSONAL INJURY:
Never try to manually stop the generator. Always let it coast until it
stops.
11. Shut off the engine.
12. Disconnect drive shaft (tumbling bar) power take-off end rst, then
generator end.
B. The generator bearings are factory lubricated and sealed, and
require no further lubrication.
C. The splined generator input shaft should be cleaned and lubricated
with a thin lm of grease before and after each use of the generator.
See Figure 6 for lubrication schedule.
D. The drive shaft (tumbling bar) requires greasing. Keep the universal
joints in the coupling shaft free from grease and dirt buildup.
E. Exercise PTO alternator for one hour under load at least twice a
year.
NOTE: Do not over lubricate the universal joints.
CLEANING
WARNING: Equipment Damage:
Do not clean the generator while it is running.
A. Inspect for loose or broken wiring connections. Make sure that wiring
connections are not loose at the generator end, circuit breakers, and
receptacles.
STORAGE & MAINTENANCE
If the generator is mounted on an off-highway trailer, such as the Winco
trailer, it should be stored in a garage, barn or machine shed in a dry
and clean location. The generator should be covered with a tarp to
prevent the entrance of dust, chaff, and/or moisture.
The generator may be stored on end (as pictured),
provided the generator is on a clean, dry elevated
surface such as a board. Do not have it resting on
a dirty surface.
MAINTENANCE REQUIREMENTS
LUBRICATION
A. Check the generator gear case oil level before each use of the
generator. See Figure 4. Maintain the oil level before each use of the
generator. Maintain the oil level at oil level plug height. The generator
is shipped with lubricant in the gear case. Specications for gear case
lubricant are: API Service: GL-5 EP Rated, Grade: SAE 85W-90-140,
Amount: 1 pint.
The following kinds of oil are recommended for use in the generator
gear case:
Mobil SAE 85W90-140 API Service GL-5
Sunoco/DX XL80W90-140
Kendal Three Star 85W-140
Amoco 85W140 or equivalent
B. Do not allow dirt or chaff to collect in the interior of the generator
or the ventilation openings. Inspect for indication of the entrance of
mice or insects into the generator. The inlet and outlet openings are
louvered, but possible damage to the louvers could occur. Mice can
destroy the generator winding.
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TROUBLE SHOOTING TABLE
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Low Output Voltage 1. Undersized/overloaded.
2. Defective governor.
3. Low power - worn engine.
4. High line loss. Indicated by lower voltage at
load than at generator terminals.
5. Shorted or grounded rotor coil.
6. Defective stator.
7. Underspeed
High Output Voltage Generator is spinning too fast, slows prime mover
down.
Excessive Heating Clogged ventilating inlet and/or outlet Clean screens, make sure interior of generator is
No Output Voltage 1. Broken or corroded connection
2. Defective diode(s) on rotor.
3. Open exciter circuit in stator.
4. Grounded or shorted rotor winding.
5. Loss of residual magnetism. Usually occurs
only after disassembly of eld frame or severe
mechanical stress/abuse.
6. Shorted stator winding. This can be identied
by the use of an internal “growler” at a
competent rewinding shop.
7. Grounded stator. Check winding by test lamp
or high potential tester from stator leads to
lamination.
8. Open stator circuit. Measure circuit between
leads with an ohmmeter. Should have a circuit
between any pair of leads.
9. Defective Capacitors.
Voltage Unsteady/Lights
Flickering
1. PTO drive line off alignment.
2. Drive line knuckles out of sync.
1.Check for overload on the tractor or undersized.
2. Check tractor governor. Tight or defective throttle
levers and joints.
3. Worn or defective tractor engine.
4. Increase size of line wiring. Might also be the result of
loose connection indicated by excessive heating at the
loose connection terminal.
5. Test and replace if defective.
6.Repair or replace as required.
7. Verify frequency is between 59-61 Hz
Readjust or replace as required.
unobstructed.
1. Clean and tighten generator and receptacle
connections.
2. Replace defective diode(s).
3. Repair or replace stator assembly.
4. Replace grounded rotor assembly.
5. Back ash the 120 Volt circuit with 12 Volts DC
6. Replace stator. )Include generator model and serial
number on the order).
7. Same as #6.
8. Same as #6.
9. Test and replace if defective.
1. Realign within 5 degrees.
2. Re-sync drive line halves.
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W
10PTO W
IRING
HH
W15PTO WIRING
DIAGRAM
W10PTOS-3/A
WIRING DIAGRAMS
GENERATOR
1
4
3
2
VOLTMETER
G3
ON OFF
G1
45A
240V
BREAKER
G3
G1
GROUND LUG
DIAGRAM
20A
BREAKER
G3
G1
20 AMP
RCPT
H
N
G
N - G BOND
60 AMP
N
RCPT
HH
GND
W15PTOS-3/E
GENERATOR
V2
W1
V1
U2
U1
W2
N - G BOND
VOLTMETER
20A
G3
G1
60A
240V
BREAKER
G3
ON OFF
G1
GROUND LUG
11REV C
BREAKER
G3
G1
20 AMP
RCPT
N
H
G
60 AMP
N
RCPT
GND
60706-241
Page 12
12 MONTH LIMITED WARRANTY
WINCO, Incorporated warrants to the original purchaser for 12 months or 1000 hours which ever occurs rst, 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, return the product within 12 months or 1000 hours which ever occurs
rst from the date of purchase, transportation charges prepaid, to your nearest WINCO Authorized Service Center or to
WINCO, Inc. at Le Center Minnesota.
THERE IS NO OTHER EXPRESS WARRANTY.
To the extent permitted by law, any and all warranties, including those of merchantability and tness for a particular
purpose, are limited to 12 months or 1000 hours which ever occurs rst, 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 specic legal rights which may vary from state to state.
WINCO reserves the right to change or improve its products without incurring any obligations to make such changes or
improvement on products purchased previously.
EXCLUSIONS:
WINCO does not warrant Engines. Engines are covered exclusively by the warranties of their respective manufacturers,
see enclosed warranties.
WINCO does not warrant Component Parts that are warranted by their respective manufacturers.
WINCO does not warrant modications or alterations which were not made by WINCO, Inc.
WINCO does not warrant products which have been subjected to misuse and/or negligence or have been involved in an
accident.
This warranty does not include travel time, mileage, or labor for removal or re-installation of WINCO product from its
application.
WINCO INC. • 225 S. CORDOVA AVE. • LE CENTER, MN 56057 • 507-357-6821
60706-241
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