COMPACT PTO
GENERATORS
OPERATOR INSTRUCTION MANUAL
COMPACT SERIES
TRACTOR DRIVE GENERATOR
W15PTOS/E
TABLE OF CONTENTS
SAFETY INFORMATION ......................................................................................................................................... 1
SPECIFICATIONS ................................................................................................................................................... 2
UNPACKING ............................................................................................................................................................ 2
INSTALLATION ........................................................................................................................................................ 2
FOUNDATION MOUNTING ............................................................................................................................. 3
TRAILER MOUNTING...................................................................................................................................... 3
THREE POINT HITCH MOUNTIN ................................................................................................................... 3
ELECTRICAL CONNECTIONS................................................................................................................................ 4
LOAD DISCONNECT PLUG INSTALLATION ......................................................................................................... 5
PRE-START CHECKLIST ........................................................................................................................................ 5
GENERATOR STARTING PROCEDURE ............................................................................................................... 6
STORAGE & MAINTENANCE REQUIREMENTS................................................................................................... 7
PTO ALIGNMENT .................................................................................................................................................... 7
LUBRICATION ......................................................................................................................................................... 7
SERVICE DIAGNOSIS............................................................................................................................................. 8
RECEPTACLE PANEL ASSEMBLY ILLUSTRATION/WIRING DIAGRAM ............................................................ 9
COMPLETE UNIT ASSEMBLY ILLUSTRATION .................................................................................................... 10
TWO WHEEL TRANSPORT .................................................................................................................................... 11
WINCO LIMITED WARRANTY ................................................................................................................................ 14
Copy you model and serial number here.
MODEL
No other Winco generator has the same serial
number as yours. It is important that you record the
number and other vital information here. If you
SERIAL NUMBER
PURCHASE DATE
should ever need to contact us about this unit it will
help us to respond to your needs faster.
DEALER
CAUTION
FOLLOW THE INSTRUCTIONS IN THE OWNER’S MANUAL SPECIFICALLY WHEN PUTTING THIS PTO
GENERATOR INTO SERVICE.
IMPORTANT
ALL STANDBY POWER PLANTS INCLUDING TRACTOR DRIVEN GENERATORS SHOULD BE PERIODICALLY EXERCISED. FOR PROPER MAINTENANCE OF YOUR TRACTOR DRIVEN GENERATOR, IT
SHOULD BE OPERATED FOR ONE HOUR CARRYING RATED LOAD AT LEAST TWICE A YEAR. THIS WILL
ASSURE THAT YOUR PTO GENERATOR IS IN OPERATING CONDITION AND READY FOR USE WHEN
THE NEED ARISES.
PARTS LIST, PARTS DRAWINGS, AND WIRING DIAGRAM PERTAINING TO YOUR UNIT ARE ENCLOSED
WITH THIS MANUAL.
This manual covers the latest compact portable tractor driven Power Take Off (PTO) generator model from Winco.
This 15,000 watt generator is designed to provide120/240V single phase electrical power for standby and utility service
when commercial power is interrupted, inaccessible or impractical. This PTO unit has a cast iron gear case with a
1-3/8” – 6 spline, 540 rpm rated input shaft and brushless, heavy-duty 3600 rpm, 2 pole, low waveform distortion
generators.
This compact PTO generator unit is designed to provide reliable electrical power for customers who already have a
compact utility tractor with 24 to 40 horsepower and a 540 rpm rated PTO shaft. The PTO unit is a cost-effective way
of providing needed electrical power without the cost or added maintenance of a dedicated drive engine. Primary
applications for these PTOs are for infrequent or medium duty loads where the unit will normally be operated less than
50 to100 hours per year. Typical uses might be for farm, ranch or home standby or portable field power away from
convenient utility or where running an extension cord is impractical. The compact PTO units are built to last, but are not
intended for prime power (continuous or sole source) applications.
60706-180 0310-00
Page i
SAFETY INFORMATION
This generator set has been designed and manufactured to
allow safe, reliable performance. Poor maintenance, improper
or careless use can result in potential 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.
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 also
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.
g. Do not make or break electrical connection under
load.
2. FIRE HAZARD- Gasoline, diesel and other fuels always
present a hazard of possible explosion and/or fire.
a. Keep a fire extinguisher nearby and know its
proper use. Fire extinguishers rated ABC by
NFPA are appropriate.
3. DEADLY EXHAUST GAS - Exhaust fumes from any
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.
4. NOISE HAZARD - Excessive noise is not only tiring, but
continual exposure can lead to loss of hearing.
a. Use hearing protection equipment when
working around this equipment for long periods of
time.
b. Keep your neighbors in mind when permanently
installing this equipment.
5. 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 material that could
create potential fire hazards.
6. SERVICING EQUIPMENT- 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. Use extreme caution when working on electrical
components. High output voltages from this
equipment can cause serious injury or death.
d. Always avoid hot mufflers, exhaust manifolds, and
engine parts. They all can cause severe burns
instantly.
7. INSTALLATION- Installing a PTO generator is not a “do-ityourself” project. Consult a qualified, 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 a 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 a turndrive shaft with your hand or
your foot.
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60706-180
DESCRIPTION
UNPACKING
The WINCO rotating field 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 specifications.
This generator may be mounted in many different fashions.
The three most popular are foundation mounted, trailer mount
or 3-point hitch mounted, for used as a standby or portable
electrical power source. 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, 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. The input shaft is a 1 3/8 in. diameter 6
spline shaft.
The factory thoroughly tests each generator before shipment.
All are continuous duty rated.
IMPORTANT: THE MANUFACTURER STRONGLY RECOMMENDS RUNNING THE GENERATOR UNDER LOAD AT
LEAST ONCE A MONTH IN ORDER TO EVAPORATE ANY
ACCUMULATED MOISTURE CONDENSATION.
SPECIFICATIONS
Model Number W15PTOS/E
Wattage 15000
Amperage 62.5
Input Speed 515 RPM
Generator Speed 3600 RPM
Input Shaft 1 3/8” - 6 spline
Tractor PTO Hp Required 30
Gear Lube
Volume 16 ounces
Type 85/90W-140
CAUTION: Equipment Damage
DO NOT invert generator during unpacking. The Gearcase
contains oil which will leak out if inverted during unpacking.
Unpack the generator as follows:
1. Remove the carton.
2. Examine the unit for damage.
3. Find the small subpack carton packed in the large carton.
Be careful not to throw away the subpack carton with the
large carton.
4. Open the subpack carton and make sure it contains:
a. Generator instruction manual
b. Load disconnect plug (disassembled, in bag)
5. Remove the four bolts which hold down the generator feet
to the pallet.
6. Lift the generator from the pallet by means of the lifting eye
on the top of the generator.
7. Inspect the generator carefully for freight loss or damage. If
loss or damage is noted at time of delivery, require that the
person making the delivery make note of the loss or
damage on the freight bill, or sign the consigner’s memo of
the loss or damage. Contact the carrier for claim procedures.
When loss or damage is noted after delivery, segregate the
damaged material, and contact the carrier for claim procedures.
“Concealed damage” means damage to the contents of a
package which is not evident when the package is delivered by
the carrier, but which is discovered later. The carrier or carriers
are responsible for merchandise lost or damaged in transit. The
title to the goods rests with the consignee when the goods are
shipped FOB factory, and only the consignee can legally file
claims. Two years are allowed in which to file suit after a claim
is disallowed in writing by the carrier.
INSTALLATION
Features
* Brushless, low harmonic design with skewed rotor and
damper windings for minimal load noise
* Capacitor Excitation
* Dual voltage - 120/240 volt output
* 4 wire Load connection plug for convenient full load 120/
240 volt output cord set
* 15 Amp duplex convenience receptacle
* Large face Voltmeter for setting proper speed
60706-180
FOUNDATION MOUNTING
Mount the generator on a foundation if it is to be used as a
permanent or standby power source. See “TRAILER MOUNTING” or “THREE POINT HITCH MOUNTING” if generator will
be used as a portable power source. When planning a foundation consider the following points:
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 10 degrees during generator
operation, even though the mechanical design of the tumbling bar would allow greater misalignment.
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0310-00
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 mechanical design of the tumbling bar would allow greater misalignment.
D. The generator mounting area of the trailer bed should be
flat.
B. The foundation must be solid enough to absorb generator
starting and reflected load torque during operation.
C. The foundation surface should be flat.
D. Space is required around the generator for mounting
switching devices, making connections, and for servicing.
E. The generator mounting bracket must rest evenly and
firmly on the foundation. Install shims if necessary to even
out the foundation under the mounting pads then bolt the
generator firmly in place.
TRAILER MOUNTING
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 reflected load torque.
WARNING: Personal Injury & Equipment Damage
TRAILER MAY TIP OVER AND CAUSE INJURIES IF
WHEELS ARE NOT SPACED FAR ENOUGH APART.
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. FAILURE TO DO SO WILL CAUSE THE GENERATOR TO TIP
WHEN LIFTING IT DAMAGING BOTH THE T-BAR AND THE
GENERATOR.
Optional Trailer Part Number TDM75
C. The trailer height and mounting position of the generator on
0310-00
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
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60706-180
ELECTRICAL CONNECTIONS
CAUTION:
Only qualified 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 FIGURE 6
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Page 4
Figure
0310-00
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 page 4.
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
first shown on the left side of page 4 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 switch
must in all cases be equal to or greater than the rating of the
entrance rated breaker.
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. See the right hand drawing on page 4
Before deciding which system to install, first 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.
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 specified 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:
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 fit into the top bakelite
housing properly) and tighten the assembly screw.
7. Assemble cable clamp over the outer jacket of the
wire and tighten the two clamp screws.
Special Note: For small size round (less than 3/4”) and flat
cables, the wire clamp may be inverted.
WARNING: Failure to wire as instructed may cause
personal injury or damage to device or equipment. To be
installed or checked by an electrician or qualified person
only.
Make sure blades
PRE-START CHECKS
The final item that you are going to have to assembly/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.
CORD SIZE: #4/4 conductor cord SO, 1.25 inch dia. max.
WARNING: Personal Injury
When working on or around these generators, do not wear
loose fitting clothing or any articles that may get caught in
moving parts.
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 Maintenance section.
2. Check gear case oil level. (See
Figure 4.) Case should be filled
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.
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Figure 2
See “Lubrication” portion of
Maintenance for oil specifications.
Page 5
60706-180
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 flicker. Drive shafts shipped new from Winco are always synchronized and tethered so they can not be taken
apart.
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 first, 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 10° misalignment between the shafts.
Misalignment will cause generator output voltage to flicker.
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 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 .
NOTE: Equipment Damage
If the load includes motors turn them on one at a time,
highest starting current motor first, next highest second,
etc.
CAUTION:
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.
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.
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
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 sufficient 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 first, then generator end.
13. Exercise PTO alternator for one hour under load at least
twice a year.
60706-180
Page 6
0310-00
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 tarpaulin to prevent the
entrance of dust, chaff, and/or moisture.
The generator may be stored on end, provided
the generator is on a clean, dry elevated
surface such as a board. Do not have it resting
on a dirt surface. (Figure 3)
MAINTENANCE REQUIREMENTS
LUBRICATION
1. 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. Specifications 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
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 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.
WARNING: Equipment Damage
DO NOT CLEAN THE GENERATOR WHILE IT IS RUNNING.
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.
CAUTION: Equipment Damage
Do not overfill generator gear case. Overfilling causes
overheating and oil seal failure.
2. The generator bearings are factory lubricated and sealed,
and require no further lubrication.
3. The splined generator input shaft should be cleaned and
lubricated with a thin film of grease before and after each
use of the generator. See Figure 6 for lubrication schedule.
4. The drive shaft (tumbling bar) requires greasing. Keep the
universal joints in the coupling shaft free from grease and
dirt buildup.
NOTE: Do not
over lubricate
the universal joints.
0310-00
Page 7
Figure 6
60706-180
SERVICE DIAGNOSIS
POSSIBLE CAUSE
LOW OUTPUT VOLTAGE
Low Speed
1. Undersized/overloaded.
2. Defective governor.
3. Low power - worn engine.
High line loss. Indicated by lower voltage at load than at
generator terminals.
Shorted or grounded rotor coil.
Defective stator
HIGH OUTPUT VOLTAGE
Generator is spinning too fast, slow tractor down.
EXCESSIVE HEATING
Clogged ventilating inlet and/or outlet.
NO OUTPUT VOLTAGE
Broken or corroded connection.
REMEDY
Check for overload on the tractor or undersized.
Check tractor governor. Tight or defective throttle levers
and joints.
Worn or defective tractor engine
check list.)
Increase size of line wiring. Might also be the result of loose
connection indicated by excessive heating at the loose
connection terminal.
Test and replace if defective.
Repair or replace as required
Readjust or Replace as required
Clean screens, make sure interior of generator is unobstructed.
Clean and tighten generator and receptacle connections.
(see engine manufacturers
Defective diode(s) on rotor.
Open excitor circuit in stator
Grounded or shorted rotor winding.
Loss of residual magnetism. Usually occurs only after
disassembly of field frame or severe mechanical stress/abuse.
Shorted stator winding. This can be identified by the use of an
internal “growler” at a competent rewinding shop.
Grounded stator. Check winding by test lamp or high potential
tester from stator leads to lamination.
Open stator circuit. Measure circuit between leads with an
ohmmeter. Should have a circuit between any pair of leads.
Defective Capacitors
VOLTAGE UNSTEADY/ LIGHTS FLICKERING
PTO drive line alignment.
Drive line knuckles out of sync. (See Figure 5.)
Replace defective diode(s).
Repair or replace stator assembly.
Replace grounded rotor assembly.
Back flash the 120 volt circuit with 12 volts DC
Replace stator. (Include generator model and serial number
on the order.)
Same as above.
Same as above.
Test and replace if defective.
Realign within 10 degrees.
Resync drive line halves.
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Page 8
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RECEPTACLE
PANEL
REF PART # QTY DESCRIPTION
1 300079-4 1 Control Box Sheet Metal
2 91370-000 1 Voltmeter 0 - 300 VAC
3 300136 1 Receptacle, NEMA 14-60R
4 50766-000 1 Receptacle, NEMA 5-20R
5 91286-001 1 Circuit Breaker 20 AMP - 120 VAC
6 63708-000 1 Ground Lug
7 57030-005 1 Circuit Breaker 60 AMP - 240 VAC
NI 300137 1 Plug. NEMA 14-60P (Supplied with the Unit)
WIRING DIAGRAM
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Page 9
60706-180
COMPLETE UNIT ASSEMBLY
REF PART # QTY DESCRIPTION
1 99839-001 1 Generator &
Gear Case Assy
S20F-230/A M5
2 300077-6 1 Base Assembly
3 99841-002 1 Gear Case Support
4 300160-6 1 Receptacle Box
Assembly
5 300080-2 1 Receptacle Box
Cover
6 300086-1 1 Safety Shield
7 15209-000 1 Safety Decal
8 Z-2516 1 Warning Decal
9 Z2553 1 Operating Instructions
Decal
60706-180
REF PART # QTY DESCRIPTION
10 Z9941 1 Oil Fill Hole Decal
11 Z2568 1 PTO Danger Decal
12 91369-003 1 515 RPM Decal
13 53113-001 1 WINCO Decal
14 62487-003 2.5’ Loom 5/8”
NI 300323-112 1 Capacitor,
31.5 mf, 425 V
NI 300323-212 2 Capacitor,
35 mf, 450 V
NI 300153 1 Gear Case
NI Not Illustrated
Page 10
0310-00
TWO WHEEL TRANSPORT
DESCRIPTION PART NO.
1 SUPPORT, TONGUE (QTY. 2) 300081
2 HITCH, TONGUE (QTY. 2) 300082
3 TONGUE 300083
4 AXLE (QTY. 2) 300085
5 SUPPORT, AXLE 300164
6 SUPPORT, PTO SHAFT 300161-1
7 SUPPORT, PTO SHAFT 300161-2
8 TIRE/RIM, PNEUMATIC (QTY. 2) 43657-000
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Page 11
60706-180
PTO GENERATOR
12 MONTH LIMITED WARRANTY
WINCO, Inc., warrants for twelve months from date of shipment, that it will repair or replace at
its option, for the original user, the whole or any part of the product found upon examination, by
WINCO at its factory at 225 South Cordova Avenue, Le Center, Minnesota, or by any factoryauthorized service station, to be defective in material or workmanship under normal standby use.
For warranty service, return the product within 12 months from the date of purchase,
transportation charges prepaid, to your nearest factory-authorized service station or the WINCO
factory.
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 12 months
from date of shipment, and liability for incidental or consequential damages or expenses is
excluded. Some states do not allow limitations on the duration of an implied warranty, and some
states do not allow the exclusion or limitation of incidental or consequential damages, so that
above limitation or exclusion may not apply to you. This warranty gives you specific legal rights;
you may have other rights which vary from state to state.
This warranty is limited to bench labor and parts only, no allowance will be made for travel time,
or removal and reinstallation of the PTO unit.
WINCO does not warrant drive lines, trailer tires, receptacles, or certain other component parts
of the product installed by others, since such items are warranted by their manufacturers.
WINCO does not warrant modifications or alterations which were not made or authorized by the
WINCO factory and which affect the stability or reliability of the product.
WINCO does not warrant products which have been exposed to misuse and/or negligence or
have been involved in an accident.
WINCO does not warrant products which have been installed in such a manner as not to protect
them from the adverse environmental conditions (water, mud, insects, etc.) or have not been
kept clean.
WINCO reserves the right to change or improve its products without incurring any obligations
to make such changes or improvements on products purchased previously.
60706-180 0310-00
0310-00
60706-180
225 SOUTH CORDOVA AVE
LE CENTER MN 56057
1-507-357-6831
60706-180 0310-00
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