Westpro Westinghouse WH3250 Series User manual

2
California
Proposition 65 Warning
Certain components in this product and its
related accessories contain chemicals
known to the state of California to cause
cancer, birth defects or other reproductive
harm. Wash hands after handling.
California
Proposition 65 Warning
The engine exhaust from this product
contains chemicals known to the state of
California to cause cancer, birth defects
or other reproductive harm.
DISCLAIMERS:
All information, illustrations and specifications in this manual are based on the latest information available at
the time of publishing. The illustrations used in this manual are intended as representative reference views only.
Moreover, because of our continuous product improvement policy, we may modify information, illustrations and/or
specifications to explain and/or exemplify a product, service or maintenance improvement. We reserve the right to
make any change at any time without notice. Some images may vary depending upon which model is shown.
ALL RIGHTS RESERVED:
No part of this publication may be reproduced or used in any form by any means – graphic, electronic or
mechanical, including photocopying, recording, taping or information storage and retrieval systems – without the
written permission of Westpro Power Systems, LLC.

i
TABLE OF CONTENTS
SAFETY .................................................................................................................................................................1-1
Safety Definitions .............................................................................................................................................1-1
Safety Symbol Definitions ................................................................................................................................1-1
General Safety Rules .......................................................................................................................................1-2
WARRANTY...........................................................................................................................................................2-1
Westpro Power Systems “Three Year” Limited Warranty..................................................................................2-1
Westpro’s Responsibility............................................................................................................................2-1
Owner’s Responsibility ..............................................................................................................................2-1
Product Warranty Applications and Product Warranty Periods..................................................................2-1
Consumer Application.........................................................................................................................2-1
Commercial Application ......................................................................................................................2-1
Non-Warrantable Applications.............................................................................................................2-2
Exclusions...........................................................................................................................................2-2
Disclaimer of Implied Warranties ...............................................................................................................2-2
EMISSIONS CONTROL WARRANTY ...................................................................................................................2-3
Federal and/or California Emission Control Warranty Statement.....................................................................2-3
Your Warranty Rights and Obligations .......................................................................................................2-3
Manufacturer’s Warranty Coverage:...........................................................................................................2-3
Owner’s Warranty Responsibilities:............................................................................................................2-3
Defects Warranty Requirements................................................................................................................2-4
Warranted Parts:........................................................................................................................................2-5
Questions:..................................................................................................................................................2-5
SPECIFICATIONS..................................................................................................................................................3-1
Specifications...................................................................................................................................................3-1
Bolt and Fastener Torque Information ..............................................................................................................3-2
Wiring Diagrams...............................................................................................................................................3-3
WH3250 Series .........................................................................................................................................3-3
WH4500 Series, WH5500 Series ..............................................................................................................3-4
WH6000 Series .........................................................................................................................................3-5
WH6500E Series .......................................................................................................................................3-6
WH7000E Series .......................................................................................................................................3-7
WH7500E Series .......................................................................................................................................3-8
COMPONENTS......................................................................................................................................................4-1
General Generator Components......................................................................................................................4-1
Control Panel Features ....................................................................................................................................4-3
PREPARING FOR SERVICE .................................................................................................................................5-1
Required Tools .................................................................................................................................................5-1
Transporting Generator ....................................................................................................................................5-1
SERVICE REPAIR TIME ANALYSIS......................................................................................................................6-1
Service Repair Time Analysis and Flat Rate Schedule....................................................................................6-1
MAINTENANCE.....................................................................................................................................................7-1
Maintenance ....................................................................................................................................................7-1
Maintenance Schedule ..............................................................................................................................7-1
Fuel .................................................................................................................................................................7-2
General Fuel Information ..........................................................................................................................7-2
Oxygenated Fuels ....................................................................................................................................7-2

ii
TABLE OF CONTENTS
Oxygenated Fuel Types .............................................................................................................................7-2
Ethanol (Ethyl or Grain Alcohol)..........................................................................................................7-2
Methanol (Methyl or Wood Alcohol) ....................................................................................................7-2
MTBE (Methyl Tertiary Butyl Ether).....................................................................................................7-2
Adding Gasoline to the Fuel Tank..............................................................................................................7-2
Engine Oil ........................................................................................................................................................7-3
Engine Oil Specification.............................................................................................................................7-3
Low Oil Protection ....................................................................................................................................7-3
Checking Engine Oil ..................................................................................................................................7-3
Adding Engine Oil......................................................................................................................................7-4
Changing Engine Oil..................................................................................................................................7-4
Air Filter Maintenance ......................................................................................................................................7-5
Cleaning the Air Filter ................................................................................................................................7-5
Cleaning the Fuel Sediment Bowl....................................................................................................................7-7
Spark Plug Service ..........................................................................................................................................7-7
Cleaning the Spark Arrestor.............................................................................................................................7-9
Checking and Adjusting Valve Lash .................................................................................................................7-9
Governor Adjustment .....................................................................................................................................7-10
Governor Range Adjustment ...................................................................................................................7-10
Battery Service ..............................................................................................................................................7-11
Battery Replacement...............................................................................................................................7-11
Cleaning the Generator..................................................................................................................................7-12
Storage...........................................................................................................................................................7-13
TROUBLESHOOTING ...........................................................................................................................................8-1
Troubleshooting................................................................................................................................................8-1
Electrical Diagnostics.......................................................................................................................................8-2
Engine Diagnostics ..........................................................................................................................................8-5
SERVICE AND DISASSEMBLY.............................................................................................................................9-1
Control Panel ...................................................................................................................................................9-1
Alternator .........................................................................................................................................................9-2
Engine and Alternator ......................................................................................................................................9-4
Fuel Tank System.............................................................................................................................................9-5
Exhaust Control System ..................................................................................................................................9-6
Carburetor........................................................................................................................................................9-7
Electric Starting System (Electric Start Models) ..............................................................................................9-8
Recoil Starter ...................................................................................................................................................9-9
Fan Cover.......................................................................................................................................................9-10
Wheel, Leg And Handle Assembly.................................................................................................................9-11

1-1
SAFETY
SAFETY DEFINITIONS
The words DANGER, WARNING, CAUTION and
NOTICE are used throughout this manual to highlight
important information. Be certain that the meanings of
these alerts are known to all who work on or near the
equipment.
!
This safety alert symbol appears
with most safety statements. It
means attention, become alert, your
safety is involved! Please read and
abide by the message that follows
the safety alert symbol.
!DANGER
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
!WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
!CAUTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which can cause damage to the
generator, personal property and/or the environment,
or cause the equipment to operate improperly.
OTE:N Indicates a procedure, practice or condition
that should be followed in order for the
generator to function in the manner intended.
SAFETY SYMBOL
DEFINITIONS
Symbol Description
!Safety Alert Symbol
Asphyxiation Hazard
Burn Hazard
Burst/Pressure Hazard
Don’t leave tools in the area
Electrical Shock Hazard
Explosion Hazard
Fire Hazard
Lifting Hazard
Pinch-Point Hazard
Read Manufacturer’s Instructions
Read Safety Messages Before
Proceeding
Wear Personal Protective Equipment
(PPE)

1-2
SAFETY
GENERAL SAFETY RULES
!DANGER
Never use the generator in a location
that is wet or damp. Never expose the
generator to rain, snow, water spray or
standing water while in use. Protect the
generator from all hazardous weather
conditions. Moisture or ice can cause a
short circuit or other malfunction in the
electrical circuit.
Never operate the generator in an
enclosed area. Engine exhaust
contains carbon monoxide. Only
operate the generator outside and away
from windows, doors and vents.
!WARNING
Voltage produced by the generator
could result in death or serious injury.
• Never operate the generator in
rain or a floodplain unless proper
precautions are taken to avoid being
subject to rain or a flood.
• Never use worn or damaged
extension cords.
• Always have a licensed electrician
connect the generator to the utility
circuit.
• Never touch an operating generator
if the generator is wet or if you have
wet hands.
• Never operate the generator in highly
conductive areas such as around
metal decking or steel works.
• Always use grounded extension
cords. Always use three-wire or
double-insulated power tools.
• Never touch live terminals or
bare wires while the generator is
operating.
• Be sure the generator is properly
grounded before operating.
!WARNING
Gasoline and gasoline vapors are
extremely flammable and explosive
under certain conditions.
• Always refuel the generator outdoors,
in a well-ventilated area.
• Never remove the fuel cap with the
engine running.
• Never refuel the generator while
the engine is running. Always turn
engine off and allow the generator to
cool before refueling.
• Only fill fuel tank with gasoline.
• Keep sparks, open flames or other
form of ignition (such as match,
cigarette, static electric source) away
when refueling.
• Never overfill the fuel tank. Leave
room for fuel to expand. Overfilling
the fuel tank can result in a sudden
overflow of gasoline and result in
spilled gasoline coming in contact
with HOT surfaces. Spilled fuel
can ignite. If fuel is spilled on
the generator, wipe up any spills
immediately. Dispose of rag properly.
Allow area of spilled fuel to dry
before operating the generator.
• Wear eye protection while refueling.
• Never use gasoline as a cleaning
agent.
• Store any containers containing
gasoline in a well-ventilated area,
away from any combustibles or
source of ignition.
• Check for fuel leaks after refueling.
Never operate the engine if a fuel leak
is discovered.

1-3
SAFETY
!WARNING
Never operate the generator if powered
items overheat, electrical output drops,
there is sparking, flames or smoke
coming from the generator, or if the
receptacles are damaged.
Always remove any tools or other
service equipment used during
maintenance from the generator before
operating.
The muffler becomes very hot during
operation and remains hot after
stopping the engine.
• Never touch hot surfaces and avoid
hot exhaust gases.
• Let engine cool before storing the
generator indoors.
Battery gases are explosive.
Never allow open flames, lit cigarettes,
sparks or spark-producing equipment
near the battery.
Battery electrolyte fluid is comprised of
sulfuric acid, which can cause severe
burns.
Never allow battery electrolyte fluid
to contact eyes, skin or clothing.
If contact or spillage of electrolyte
occurs, immediately flush the area with
water.
!• Never use this product to power
life support devices or life support
appliances.
• Never use this product to power
medical devices or medical
appliances.
• Inform your electricity provider
immediately if you or anyone in your
household depends on electrical
equipment to live.
• Inform your electrical provider
immediately if a loss of power
would cause you or anyone in your
household to experience a medical
emergency.
!WARNING
!California Proposition 65
The engine exhaust from this product
contains chemicals known to the state
of California to cause cancer, birth
defects or other reproductive harm.
NOTICE
Never modify the generator.
Never operate the generator if it vibrates at high
levels, if engine speed changes greatly or if the
engine misfires often.
Always disconnect tools or appliances from the
generator before starting.

1-4
SAFETY
This Page Intentionally Left Blank

2-1
WARRANTY
WESTPRO POWER SYSTEMS “THREE YEAR” LIMITED
WARRANTY
Effective July 1, 2011
WESTPRO’S RESPONSIBILITY
Westpro Power Systems, LLC (“WESTPRO”) warrants to the original purchaser that its Westinghouse line of
generators will be free from defects in material and workmanship. Under normal use and maintenance from the
date of purchase, WESTPRO agrees to repair or replace at WESTPRO’s discretion, any defective product free of
charge at any authorized WESTPRO Authorized Service Dealer within the below listed applications, time periods,
limitations, and exclusions. THIS LIMITED WARRANTY IS EXTENDED TO THE ORIGINAL PURCHASER ONLY
AND IS NOT TRANSFERABLE TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. This
warranty is separate from the Emission Control Warranty Statement supplied with your new product. Please consult
the Emission Control Warranty Statement for details regarding emission related parts. For a list of WESTPRO
Authorized Service Dealers refer to www.westpropower.com or call 1-855-944-3571.
OWNER’S RESPONSIBILITY
To ensure trouble free warranty coverage it is important that you register your WESTPRO Westinghouse generator.
You may register on-line at www.westpropower.com, by automated phone at 1-855-944-3571, or by filling out
and returning to WESTPRO the warranty registration card supplied with your generator. Registering your product
confirms your warranty coverage and provides a direct link between you and WESTPRO if we find it necessary to
contact you.
Your receipt for purchase including date, model and serial number must be maintained and presented to a
WESTPRO Authorized Service Dealer for warranty service. Proof of purchase rests solely with you, the original
purchaser.
You must demonstrate reasonable care and use, and follow preventive maintenance, storage, fuel and oil usage
as prescribed in the operator’s manual for your WESTPRO Westinghouse unit. Should a product difficulty occur,
you must, at your expense, deliver or ship your WESTPRO Westinghouse unit to a WESTPRO Authorized Service
Dealer for warranty repairs (which must occur within the applicable warranty period), and arrange for pick-up or
return of your unit after the repairs have been made. For the WESTPRO Authorized Service Dealer nearest to you,
call WESTPRO’s automated phone at 1-855-944-3571 or you may locate a WESTPRO Authorized Service Dealer
at www.westpropower.com. Should you require assistance or have questions concerning WESTPRO’s Warranty
Statement, you can contact us through the web at www.westpropower.com or call 1-855-944-3571.
PRODUCT WARRANTY APPLICATIONS AND PRODUCT WARRANTY PERIODS
CONSUMER APPLICATION
For the purpose of this limited warranty “Consumer Application” means usage by the original purchaser for the
purpose of personal residential household or recreational use.
Parts and labor will be covered at 100% for a period of one (1) year from the date of purchase.
Parts only will be covered at 100% for a period of three (3) years from the date of purchase.
If proof of purchase is not available to establish the purchase date nor is the equipment registered as suggested
herein, the date of manufacturing as recorded by WESTPRO will start the product warranty period.
COMMERCIAL APPLICATION
For the purpose of this limited warranty “Commercial Application” means usage by the original purchaser for the
purpose of income producing, business related use. Once a generator has been used for income producing and
business related purposes, it shall thereafter be considered a ”Commercial Application” and the following warranty
will apply.
Parts and labor will be covered at 100% for a period of one (1) year from the date of purchase.
If proof of purchase is not available to establish the purchase date nor is the equipment registered as suggested
herein, the date of manufacturing as recorded by WESTPRO will start the product warranty period.

2-2
WARRANTY
NON-WARRANTABLE APPLICATIONS
THE WESTPRO WESTINGHOUSE LINE OF GENERATORS IS EXPRESSLY NOT RECOMMENDED FOR NOR
WARRANTED FOR THE FOLLOWING APPLICATIONS:
Medical and Life Support Uses – This product is not recommended for and is NOT warranted for the use to power
Medical and Life Support equipment or devices.
Prime Power – This warranty does not apply to generators used for Prime Power (primary source of power) in
place of utility power where utility power service is present or where utility power service does not normally exist,
regardless of whether a Consumer Application or Commercial Application is involved.
EXCLUSIONS
x WESTPRO portable generators that utilize non-WESTPRO replacement parts.
x Costs of normal maintenance and adjustments.
x Failures caused by any contaminated fuels, oils, or lack of proper oil levels.
x Repairs or diagnostics performed by individuals other than WESTPRO authorized dealers not authorized in
writing by WESTPRO.
x Failures due to normal wear and tear, accident, misuse, abuse, negligence or improper use. As with all
mechanical devices, the WESTPRO engines need periodic part(s) service and replacement to perform as
designed. This warranty will not cover repair when normal use has exhausted the life of a part(s) or engine.
x Failures caused by any external cause or act of God, including but not limited to, collision, theft, vandalism,
riot, war, fire, freezing, lightning, earth-quake, windstorm, hail, water, flood, tornado, or hurricane.
x Damage related to rodent and/or insect infestation.
x Products that are modified or altered in a manner not authorized in writing by WESTPRO.
x Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any
delay in repair or replacement of the defective part(s).
x Failure due to misapplication.
x Telephone, cellular phone, facsimile, internet access, or other communication expenses.
x Expenses related to “customer instruction” or troubleshooting where no manufacturing defect is found.
x Overnight freight or special shipping costs for replacement part(s).
x Overtime, holiday or emergency labor.
x Starting batteries, fuses, light bulbs and engine fluids.
DISCLAIMER OF IMPLIED WARRANTIES
This limited warranty is in lieu of all other expressed or implied warranties, including any warranty of FITNESS FOR
A PARTICULAR PURPOSE OR USE and any implied warranty of MERCHANTABILITY otherwise applicable to
WESTPRO’s Westinghouse line of generators. WESTPRO and its affiliated companies shall not be liable for any
special, incidental or consequential damage, including lost profits. There are no warranties extended other than as
provided herein. This limited warranty may be modified only by WESTPRO. Any implied warranties allowed by law
shall be limited in duration to the terms of the express warranty provided herein. Some states do not allow limitations
on how long an implied warranty lasts, so the above limitation may not apply to you. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This
warranty gives you specific legal rights. You also have other rights from state to state. WESTPRO’S ONLY LIABILITY
SHALL BE THE REPAIR OR REPLACEMENT AS STATED ABOVE. IN NO EVENT SHALL WESTPRO BE LIABLE
FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF SUCH DAMAGES ARE A DIRECT RESULT
OF WESTPRO’S NEGLIGENCE. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you. This warranty gives you specific legal rights and you may
also have other rights from state to state.
This limited warranty is given by Westpro Power Systems, LLC, W237 N2889 Woodgate Rd. Unit B, Pewaukee, WI
53072.

2-3
EMISSIONS CONTROL WARRANTY
FEDERAL and/or CALIFORNIA EMISSION CONTROL
WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS
Westpro Power Systems, LLC, the United States Environmental Protection Agency (EPA), and, for those products
certified for sale in the state of California, the California Air Resources Board (CARB) are pleased to explain the
emission control system (ECS) warranty on your 2014 small off-road spark-ignited engine and equipment (the
outdoor equipment). In California, new outdoor equipment must be designed, built and equipped to meet the state’s
stringent anti-smog standards (in other states, outdoor equipment must be designed, built, and equipped to meet
the U.S. EPA small offroad, spark ignition engine regulations). Westpro Power Systems, LLC must warrant the ECS
on your outdoor equipment of the period of time listed below provided there has been no abuse, neglect or improper
maintenance of outdoor equipment.
Your ECS may include parts such as the carburetor, fuel-injection system, the ignition system, catalytic converter,
fuel tanks, fuel lines, fuel caps, valves, canisters, filters, vapor hoses, clamps, connectors, and other associated
emission-related components.
Where a warrantable condition exists, Westpro Power Systems, LLC will repair your outdoor equipment engine at no
cost to you including diagnosis, parts and labor.
MANUFACTURER’S WARRANTY COVERAGE:
This emission control system is warranted for two years. If any emission-related part on your outdoor equipment is
defective, the part will be repaired or replaced by Westpro Power Systems, LLC.
OWNER’S WARRANTY RESPONSIBILITIES:
As the outdoor equipment owner, you are responsible for performance of the required maintenance listed in your
owner’s manual. Westpro Power Systems, LLC recommends that you retain all receipts covering maintenance on
your outdoor equipment, but Westpro Power Systems, LLC cannot deny warranty solely for the lack of receipts or
your failure to ensure the performance of all scheduled maintenance.
As the outdoor equipment owner, you should however be aware that Westpro Power Systems, LLC may deny you
warranty coverage if your outdoor equipment or a part has failed due to abuse, neglect, or improper maintenance or
unapproved modifications.
You are responsible for presenting your outdoor equipment to a Westpro Power Systems, LLC’s Authorized Warranty
Service Dealer as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of
time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact a Westpro Power
Systems, LLC Service Representative at 1-855-WHHELP1 (1-855-944-3571) or contact Westpro Power Systems,
LLC at the following address: W237 N2889 Woodgate Road, Unit B, Pewaukee, WI 53072 or
www.westpropower.com.

2-4
EMISSIONS CONTROL WARRANTY
DEFECTS WARRANTY REQUIREMENTS
Westpro Power Systems, LLC warrants to the ultimate purchaser and each subsequent purchaser that the outdoor
equipment engine is designed, built and equipped so as to conform with all applicable regulations; and free from
defects in materials and workmanship that cause the failure of a warranted part, and is identical in all material
respects to that part as described in the application for certification.
The warranty period begins on the date the outdoor equipment is delivered to the ultimate purchaser or first placed
into service.
Subject to certain conditions and exclusions as stated below, the warranty on emission-related parts is as follows:
1. Any warranted part that is not scheduled for replacement as required maintenance in the written instructions
supplied is warranted for the warranty period stated above. If the part fails during the period of warranty
coverage, the part will be repaired or replaced by Westpro Power Systems, LLC according to subsection (4)
below. Any such part repaired or replaced under warranty will be warranted for the remainder of the period.
2. Any warranted part that is scheduled only for regular inspection in the written instructions supplied is warranted
for the warranty period stated above. Any such part repaired or replaced under warranty will be warranted for
the remaining warranty period.
3. Any warranted part that is scheduled for replacement as required maintenance in the written instructions
supplied is warranted for the period of time before the first scheduled replacement date for that part. If the part
fails before the first scheduled replacement, the part will be repaired or replaced by Westpro Power Systems,
LLC according to subsection (4) below. Any such part repaired or replaced under warranty will be warranted for
the remainder of the period prior to the first scheduled replacement point for the part.
4. Repair or replacement of any warranted part under the warranty provisions herein must be performed at a
warranty station at no charge to the owner.
5. Notwithstanding the provisions herein, warranty services or repairs will be provided at all of our distribution
centers that are franchised to service the subject engines or equipment.
6. The outdoor equipment owner will not be charged for diagnostic labor that is directly associated with diagnosis
of a defective, emission-related warranted part, provided that such diagnostic work is performed at a warranty
station.
7. Westpro Power Systems, LLC is liable for damages to other engine or equipment components proximately
caused by a failure under warranty of any warranted part.
8. Throughout the outdoor engine and equipment warranty period stated above, Westpro Power Systems, LLC will
maintain a supply of warranted parts sufficient to meet the expected demand for such parts.
9. Any replacement part may be used in the performance of any warranty maintenance or repairs and must be
provided without charge to the owner. Such use will not reduce the warranty obligations of Westpro Power
Systems, LLC.
10. Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any
non-exempted add-on or modified parts by the ultimate purchaser will be grounds for disallowing a warranty
claim. Westpro Power Systems, LLC will not be liable to warrant failures of warranted parts caused by the use of
a non-exempted add-on or modified part.

2-5
EMISSIONS CONTROL WARRANTY
WARRANTED PARTS:
The repair or replacement of any warranted part otherwise eligible for warranty coverage may be excluded from
such warranty coverage if Westpro Power Systems, LLC demonstrates that the outdoor equipment has been
abused, neglected, or improperly maintained, and that such abuse, neglect, or improper maintenance was the
direct cause of the need for repair or replacement of the part. That notwithstanding, any adjustment of a component
that has a factory installed, and properly operating, adjustment limiting device is still eligible for warranty coverage.
Further, the coverage under this warranty extends only to parts that were present on the outdoor equipment
purchased.
The following emission warranty parts are covered (if applicable):
(1) Fuel Metering System
x Cold start enrichment system (soft choke)
x Carburetor and internal parts (or fuel injection system)
x Fuel pump
x Fuel tank
(2) Air Induction System
x Air cleaner
x Intake manifold
(3) Ignition System
x Spark plug(s)
x Magneto ignition system
(4) Exhaust System
x Catalytic converter
x SAI (Reed valve)
(5) Miscellaneous Items Used in Above System
x Vacuum, temperature, position, time sensitive valves and switches
x Connectors and assemblies
(6) Evaporative Control
x Fuel hose
x Fuel hose clamps
x Tethered fuel cap
x Carbon canister
x Vapor lines
QUESTIONS:
If you have any questions regarding your emissions warranty rights and responsibilities you should contact Westpro
Power Systems, LLC at:
Phone: [phone], toll free
Email: [e-mail]
Address: Service Department
Westpro Power Systems, LLC
W237 N2889 Woodgate Road, Unit B
Pewaukee, WI 53072

2-6
EMISSIONS CONTROL WARRANTY
This Page Intentionally Left Blank

SPECIFICATIONS
3-1
SPECIFICATIONS
Table 3-1: Westpro Portable Generator Specifications
GENERATOR WH3250
Series
WH4500
Series
WH5500
Series
WH6000
Series
WH6500E
Series
WH7000/E
Series
WH7500E
Series
POWER
Rated [watts]
(+/-10% under load) 3250 4500 5500 6000 6500 7000 7500
Maximum [watts]
(+/-10% under load) 3750 5600 6750 7500 8000 8500 9000
Frequency [Hz]
(+/-5% under load) 60
Voltage [volts]
(+/-5% under load) 120 / 240
OPERATING TEMPERATURE
Maximum [F / C] 104° / 40°
Minimum [F / C] 14° / -10°
ENGINE
Speed [RPM] 3600
Type OHV 4-cycle
Displacement [cc] 208 292 357 357 357 420 420
Valve Lash [in. / mm] IN: 0.005±0.001 / 0.125±0.025
EX: 0.007±0.001 / 0.175±0.025
Fuel†† 87 octane or higher unleaded, E10 Ethanol
Fuel Tank Capacity [gal / L] 6.6 / 25
Engine Oil SAE 10W-30*
Engine Oil Capacity [qt / L] 1.2 / 1.1
Spark Plug RN9YC†
Spark Plug Gap [in. / mm] 0.028-0.031 / 0.7-0.8
Air Filter 160006
Battery
(Electric Start Models
Only)
– – – – 100024 100024 100024
* See Engine Oil Recommendations on page 7-3 for other engine oil types outside general temperature use.
† See Spark Plug Service on page 7-7 for other recommended spark plug replacements.
†† See FUEL on page 7-2 for more information on engine fuels.

SPECIFICATIONS
3-2
BOLT AND FASTENER TORQUE INFORMATION
Table 3-2: Torque Values
Component-Specific Fastener Fastener Size Torque Values
ft-lb N·m
Alternator End Cover Bolts M5 x 0.75 x 12 3 4
Alternator Housing Bolts M10 x 1.25 x 80 35 48
Axle Bracket Bolts M8 x 1.0 x 16 18 25
Brush Assembly Bolt M5 x 0.75 x 16 2 2
Carbon Canister Bracket Bolts M6 x 1.0 x 10 2 2
Connecting Rod Bolts M8 x 1.25 11 15
Control Panel Bolts M6 x 1.0 x 15 3 4
Cooling Fan Flange Nut M18 x 1.5 77 105
Crankcase Cover Bolts M8 x 1.25 x 40 21 28
Cylinder Head Bolts M10 x 1.25 x 80 35 48
Exhaust Pipe Bolts M8 x 32 13 18
Fuel Shutoff Valve Hex Fitting M10 x 1.25 17 24
Fuel Tank Mounting Bolts M6 x 1.0 x 25 7 10
Ignition Coil Bolts M6 x 1.0 x 25 7 10
Muffler Cover Bolts M6 x 1.0 x 14 3 4
Muffler Rear Mounting Bracket Bolts M8 x 1.0 x 16 13 18
Muffler Side Guard Bolts M6 x 1.0 x 14 3 4
Oil Drain Screw M12 x 1.5 24 32
Pivot Adjusting Nuts M6 x 0.75 9 12
Pivot Bolts M8 x 1.25 22 30
Rotor Bolt – 35 48
Spark Arrestor Clamp Screw M4 x 0.75 x 16 1 1
Spark Arrestor Screw M3.5 x 0.75 x 10 1 1
Spark Plug 13/16" 21 28
Starter Solenoid Terminal Nut M6 x 1.0 4 6
Support Leg to Frame Bolts M8 x 1.0 x 16 18 25
Leg to Rubber Stopper Bolts M8 x 1.0 x 25 18 25
Handle Pivot Bracket Bolts M6 x 1.0 x 40 7 10

SPECIFICATIONS
3-3
WIRING DIAGRAMS
WH3250 Series
WH3250
Series
Figure 3-1 – WH3250 Series Wiring Diagram

SPECIFICATIONS
3-4
WH4500 Series, WH5500 Series
WH4500 Series WH5500 Series
Figure 3-2 – WH4500 Series, WH5500 Series Wiring Diagram

SPECIFICATIONS
3-5
WH6000 Series
WH6000
Series
Figure 3-3 – WH6000 Series Wiring Diagram

SPECIFICATIONS
3-6
WH6500E Series
WH6500E
Series
Figure 3-4 – WH6500E Series Wiring Diagram