Westinghouse WPro8500, WPro12000 - Portable Generator Manual

TECHNICAL SPECIFICATIONS

Model Number	Running Watts	Peak Watts	Fuel Tank Size (L/G)	Rated Speed (RPM)	Ignition Type	Spark plug	Engine Disp (cc)	Stroke X Bore	Oil Capacity (L)	Oil Type	THD
WPro8500	8500	11500	25 L 6.6 G	3600	TCI	F7TC	457cc	66X90	1.1 L	10W30	<5%
WPro12000	12000	15000	40 L 10.5 G	3600	TCI	F7TC	713cc	71X80	1.6 L	10W30	<5%

NOTICE
This generator is not equipped with altitude carburetor modification. Even with a carburetor modification, engine horsepower will decrease about 3.5% for each 300 meter (1,000 foot) increase in altitude. The effect of altitude on horsepower will be greater if no carburetor modification is made. A decrease in engine horsepower will decrease the power output of the generator. Contact our service team to order altitude kits.

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.

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.

HAVE QUESTIONS?
Email us at service@wpowereq.com or call 1-855-944-3571

KEEP YOUR PURCHASE RECEIPT TO ENSURE TROUBLE-FREE WARRANTY COVERAGE.

PRODUCT REGISTRATION

To ensure trouble-free warranty coverage, it is important you register your Westinghouse generator.
You can register your generator by either:

1. Filling in the product registration form below and mailing to:
   Product Registration
   MWE Investments LLC
   777 Manor Park Drive
   Columbus, Ohio 43228
2. Registering your product Online at www.westinghouseportablepower.com/register-your-product/
   To register your generator you will need to locate the following information:

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 alerts 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.

NOTE: Indicates a procedure, practice or condition that should be followed in order for the generator to function in the manner intended.

SAFETY SYMBOL DEFINITIONS

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 flood plain 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.

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.
Never use the generator to power medical support equipment.
Always remove any tools or other service equipment used during maintenance from the generator before operating.

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.

UNPACKING

CAUTION
Always have assistance when lifting the generator. The generator is heavy; lifting it could cause bodily harm.
Avoid cutting on or near staples to prevent personal injury.

Tools required – box cutter or similar device.

1. Carefully cut the packing tape on top of the carton.
2. Fold back top flaps to reveal the manual.
3. Remove the Wheel Kit Accessories cardboard box.
4. Carefully cut two sides of the carton to remove the generator.

WHAT COMES IN THE BOX (WPRO12000)
Owners Manual
Quick Start Guide/Maintenance Schedule
Wireless Remote Starter (1)
1.6 Liter Bottle of SAE 10W30 Oil (1)
Spark Plug Socket Wrench (1)
Wheel Kit Accessories Box Funnel (1)

WHAT COMES IN THE BOX (WPRO8500)
Owners Manual
Quick Start Guide/Maintenance Schedule
Lifting bracket (1)
Wireless Remote Starter (1)
1.1 Liter Bottle of SAE 10W30 Oil (1)
Spark Plug Socket Wrench (1)
Wheel Kit Accessories Box
Funnel (1)

WHEEL KIT ACCESSORIES BOX
Open the Wheel Kit Accessories box and verify the contents against the list right. If any parts are missing, please locate an authorized Westinghouse Generator dealer at service@wpowereq.com or call 1-855-944-3571.

1. Washer (2 used)
2. Flange Bolt M8 x16mm (4 used)
3. Hairpin Cotter Pin (2 used)
4. Wheel Axle Pin (2)

ASSEMBLY

INSTALLING WHEELS AND FEET

BEFORE ASSEMBLING THE GENERATOR, REVIEW THE SAFETY SECTION.

CAUTION
Never lift the generator without assistance. The generator is heavy and lifting without assistance could result in personal injury.
Never use the handles as a lifting point to support the entire weight of the generator. Only use the handles to move the generator by lifting the handles and using the wheels to move the generator.

Use caution when collapsing the handles. Hands and fingers could get caught and pinched.

NOTICE
Assembling the generator will require lifting the unit on one side. Make sure all engine oil and fuel are drained from the unit prior to assembling. Once assembled, the wheel kit is not intended for onroad use. The wheel kit is designed for use on this generator only.

INSTALLING FEET TO FRAME

1. Place generator on a flat surface.
2. Using a block of wood, raise and support the back of the generator.
3. Install the mounting foot to the frame using M8 flange bolts. (See Figure 1)
   
   1. Mounting Feet
   2. Flange Bolts M8

INSTALLING WHEELS TO FRAME

1. Insert axle pin through washer and wheel. (See Figure 2)
   
2. Install the wheel with axle pin through the axle bracket on the frame. The eye of the bolt should be facing toward the inside of the generator. (See Figure 3)
   
   1. Axle Bracket
   2. Hairpin Clip
   3. Axle Pin
3. Install the hairpin cotter through the axle pin to lock it in place.
4. Repeat previous steps on other wheel.

INSTALLING LIFT BRACKET

1. Align the lifting bar with the mounting brackets on the top of the fuel tank and secure with the 4 M8 flange bolts provided. (See Figure 4)
   

INSTALLING THE BATTERY

WARNING
To avoid electrics hock:

• ALWAYS connect the positive (+) battery cable (red boot) first when connecting battery cables.
• ALWAYS disconnect the negative (-) battery cable (black boot) first when disconnecting battery cables.
• NEVER connect the negative (-) battery cable (black boot) to the positive (+) post on the battery.
• NEVER connect the positive (+) battery cable (red boot) to the negative (-) post on the battery.
• NEVER touch both battery posts simultaneously.
• NEVER place a metal tool across both battery posts.
• ALWAYS use insulated or nonconducting tools when installing the battery.

1. Verify the positive (+) battery cable (red boot) is securely tightened to the positive (+) battery post. Make sure boot is over battery post.
2. Carefully remove the protective wrapping around the lug of the negative (-) battery cable (black boot).
3. Locate negative (-) cable attached to alternator cable, remove tie and route to the negative (-) battery post. See figure 5 below for location of negative (-) cable.
4. Pull back the black boot and securely attach the negative (-) battery cable (black boot) to the negative (-) battery post as shown in Figure 5. Replace the black boot so it protects the cable lug and battery post.
   
   1. Positive (+) Battery Cable (Red)
   2. Negative (-) Battery Cable (Black)

NOTE: The electric start generator is equipped with a battery charging feature. Once the engine is running, a small charge is supplied to the battery via the battery cables and will slowly recharge the battery.

FEATURES

1. Electric Start Switch: Starts and stops the engine. Also, disconnects battery power when in "Off" position.
2. Fuel Cap: Close until clicking sound is heard.
3. Control Panel: Contains the circuit breakers and outlets.
4. Battery: Included for electric start models.
5. Oil Fill Plug: Must be removed to add oil.
6. Oil Drain Plug: Must be removed to drain engine oil
7. Never Flat Wheels: For easy portability
8. Fuel Shut off Valve: Controls the flow of fuel to the engine.
9. Auto Choke: Battery must be hooked up for auto choke to work properly.
10. Lifting Bracket: Build in bracket to lift generator at work site using a crane.
11. Fuel Gauge: Indicates fuel level.
12. Spark Plug Boot (Wire): Must be removed when servicing the engine or the spark plug.

CONTROL PANEL FEATURES

1. Engine Control Switch/Battery Disconnect:
   • START - When the switch is momentarily depressed and held in the START position, the electric start motor engages and starts the engine. Once the engine starts, release the switch. (The switch will automatically go to the RUN position).
   • RUN - Once started, the switch will remain in the RUN position
   • STOP - To stop the engine, move the switch to the STOP position. The battery will disconnect in the STOP position to save battery life.
2. Battery Charging Port: Charge the battery when the unit is off with trickle charger.
3. USB Duplex: Two 5V DC USB ports.
4. Data Center: This VFT Meter is a four function unit. Function 1 will be the first thing you see. This is your Frequency. Press the button once and you will go to the function 2, which is not being used. Press the button once more and you will see function 3 for your time/Hours and by pressing one final time you will see function 4, which is the voltage.
   The frequency and voltage can vary +/- 5% and still be within tolerance.
   
5. GFCI Circuit Breaker: The main circuit breaker controls total output of all outlets to protect the generator. This GFCI breaker allows for full panel GFCI and is OSHA compliant.
6. 120-Volt, 20-Amp Duplex Outlets (NEMA 5-20R): Each outlet is capable of carrying a maximum of 20 amps on a single receptacle or a combination of both receptacles.
7. 20-Amp Circuit Breakers: Each circuit breaker limits the current that can be delivered through the 120-volt duplex outlets to 20amps.
8. 120-Volt, 30-Amp Twist Lock Outlet (NEMA L5-30R): Outlet can supply 120V up to 30 amps.
9. 120/240-Volt, 30-Amp Twist Lock Outlet (NEMA L14-30R): Outlet can supply either 120V or 240V up to 30 amps.
10. 120/240-Volt, 50-Amp Outlet (NEMA 14-50R): Outlet can supply either 120V or 240V up to 50 amps.
11. Ground Terminal: The ground terminal is used to ground the generator.
12. Remote Start Program Button: Use this button along with the key fob to program the generator to be started remotely. Button located on side of control panel on WPro12000.

OPERATION

BEFORE STARTING THE UNIT

BEFORE STARTING THE GENERATOR, REVIEW SAFETY SECTION

Location Selection – Before starting the generator, avoid exhaust and location hazards by verifying:

• You have selected a location to operate the generator that is outdoors and well ventilated.
• You have selected a location with a level and solid surface on which to place the generator.
• You have selected a location that is at least 6 feet (1.8 m) away from any building, other equipment or combustible material.
• If the generator is located close to a building, make sure it is not located near any windows, doors and/ or vents.

DANGER Using a generator indoors CAN KILL YOU IN MINUTES. Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell.
NEVER use inside a home or garage, EVEN IF doors and windows are open.	Only use OUTSIDE and far away from windows, doors, and vents.
Avoid other generator hazards. READ MANAL BEFORE USE.

WARNING
Always operate the generator on a level surface. Placing the generator on non level surfaces can cause the generator to tip over, causing fuel and oil to spill. Spilled fuel can ignite if it comes in contact with an ignition source such as a very hot surface.

NOTICE
Only operate the generator on a solid, level surface. Operating the generator on a surface with loose material such as sand or grass clippings can cause debris to be ingested by the generator that could:

• Block cooling vents
• Block air intake system

Weather – Never operate your generator outdoors during rain, snow or any combination of weather conditions that could lead to moisture collecting on, in or around the generator.

Dry Surface – Always operate the generator on a dry surface free of any moisture.

No Connected Loads – Make sure the generator has no connected loads before starting it. To ensure there are no connected loads, unplug any electrical extension cords that are plugged into the control panel receptacles.

NOTICE
Starting the generator with loads already applied to it could result in damage to any appliance being powered off the generator during the brief start-up period.

Grounding the Generator – The National Electric Code (NEC), as well as many local electrical codes, may require the generator to be connected to earth ground before operating. The most common application that requires a ground rod is when you are using the generator as a separately derived system to provide back up power to your house. Typically this is when a transfer switch has a switched neutral.
As the generator application has many variables that cannot be determined by the manufacturer of the generator, a licensed electrician will need to determine if a grounding rod is needed.
If a licensed electrician has determine the application requires a ground rod, make sure it is connected to earth ground by connecting the ground terminal on the control panel to earth ground using copper wire (minimum 10 AWG). Consult a qualified electrician for local grounding requirements.

Neutral Bonded: There is a permanent conduct or between the generator (stator winding) and the frame.

WARNING
Be sure the generator is properly connected to earth ground before operating. The generator must be grounded to prevent electrical shock due to faulty appliances.

POWERCORDS

Using Extension Cords
Westinghouse Portable Power assumes no responsibility for the content within this table. The use of this table is the responsibility of the user only. This table is intended for reference only. The results produced by using this table are not guaranteed to be correct or applicable in all situations as the type and construction of cords are highly variable. Always check with local regulations and a licensed electrician prior to installing or connecting an electrical appliance.

LIFTING BRACKET

1. Before lifting the generator, inspect the bracket and make sure it is securely fastened to the generator. Do not lift the generator unless the lifting bracket is securely fastened.
2. Hook a chain or strap through the eye on the lifting bracket and make sure it is securely fastened.
3. Connect a suitable lifting device to the chain or strap. Inspect chain and hook for any damaged links or any defects that could cause failure. It is recommended to use hooks with safety latches installed.
4. Lift the generator slightly to ensure it is lifting straight and level. Adjust the bracket if required to allow it to lift correctly.

Do not lift anywhere else than the eye on the lifting bracket. Improper lifting could damage unit.

ADDING / CHECKING ENGINE FLUIDS AND FUEL

BEFORE ADDING/CHECKING ENGINE FLUIDS AND FUEL, REVIEW SAFETY SECTION.

DANGER
Filling the fuel tank with gasoline while the generator is running can cause gasoline to leak and come in contact with hot surfaces that can ignite the gasoline.

Before starting the generator, always check the level of:

• Engine oil
• Gasoline in the fuel tank

Once the generator is started and the engine gets warm, it is not safe to add gasoline to the fuel tank or engine oil to the engine while the engine is running or the engine and muffler are hot.

CHECKING AND / OR ADDING ENGINE OIL

WARNING
Internal pressure can build in the engine crankcase while the engine is running. Removing the oil fill plug/ dipstick while the engine is hot can cause extremely hot oil to spray out of the crankcase and can severely burn skin. Allow engine oil to cool for several minutes before removing the oil fill plug/dipstick.

The unit as shipped does not contain oil in the engine. You must add engine oil before starting the generator for the first time. See Checking Engine Oil and Adding Engine Oil for instructions on checking engine oil level and the procedure for adding engine oil.

NOTICE
The engine does not contain engine oil as shipped. Attempting to start the engine can damage engine components. The owner of the generator is responsible to ensure the proper oil level is maintained during the operation of the generator. Failure to maintain the proper oil level can result in engine damage.

ADDING GASOLINE TO THE FUEL TANK

WARNING
Never refuel the generator while the engine is running.

Always turn the engine off and allow the generator to cool before refueling.

Required Gasoline – Only use gasoline that meets the following requirements:

• Unleaded gasoline only
• Gasoline with maximum 10% ethanol added
• Gasoline with an 87 octane rating or higher

Filling the Fuel Tank – Follow the steps below to fill the fuel tank:

1. Shut off the generator.
2. Allow the generator to cool down so all surface areas of the muffler and engine are cool to the touch.
3. Move the generator to a flat surface.
4. Clean area around the fuel cap.
5. Remove the fuel cap by rotating counterclockwise.
6. Slowly add gasoline into the fuel tank. Be very careful not to overfill the tank. The gasoline level should NOT be higher than the filler neck (see Figure 6).
   
7. Install the fuel cap by rotating clockwise until you hear a click, indicating the cap is completely installed.

CAUTION
Avoid prolonged skin contact with gasoline. Avoid prolonged breathing of gasoline vapors.

PROGRAMMING THE UNIT FOR REMOTE START

NOTICE
The key fob included with the generator should come already paired with the unit. If it does not you can follow the directions below to reconnect. If your unit was shipped without a key fob please contact our customer support team.

WARNING
Always make sure the area around the generator is clear of bystanders before using the remote start to start the generator.

The generator can be started remotely from up to a maximum of 100 feet away using the remote start key fob with new, fully charged batteries in the key fob. As the batteries' state of charge in the key fob reduces, the distance to start the generator will also reduce.

Before the generator can be started, an initial start-up procedure must be performed so the generator and the key fob recognize each other. If the key fob is replaced, you will need to go through this procedure with the new fob.

1. Turn the engine control switch to the RUN position.
2. Push and hold the red REMOTE PAIRING button on the control panel (or side of control panel) for 3 seconds.
3. Press and hold the STOP button on the remote start key fob until the indicator light (see 1 in Figure 7 below) flickers.
   
   1. Pairing Indicator light
   2. Start Button
   3. Stop Button
4. Press and hold the START button on the remote start key fob until the indicator light at the top of the remote flickers once.
5. Press and hold the REMOTE PAIRING button on the generator for 3 seconds. The generator is now programmed to start remotely

STARTING THE UNIT

BEFORE STARTING THE GENERATOR, REVIEW SAFETY SECTION.

Before attempting to start the generator, verify the following:

• The engine is filled with engine oil. See Checking Engine Oil.
• The generator is situated in a proper location (Location Selection).
• The generator is on a dry surface (Weather and Dry Surface).
• All loads are disconnected from the generator (No Connected Loads).
• The generator is properly grounded the Generator (See Before Starting the Unit).

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.

NOTICE
The engine is equipped with a low oil shutdown switch. If the oil level becomes low, the engine may shut down and not start until the oil is filled to the proper level. Poor oil quality may interfere with the operation of the low oil shutdown switch.
The owner of the generator is responsible to ensure the proper oil level is maintained during the operation of the generator. Failure to maintain the proper oil level can result in engine damage.
This generator is equipped with an automatic choke for starting. This system is always on and cannot be turned off. Do not attempt to make adjustments to the automatic choke or any other carburetor adjustments. Tampering with the automatic choke system may void your warranty. See an authorized Westinghouse service center for more information.

STARTING THE GENERATOR

1. Check oil levels (see Adding Engine Oil)
2. Battery must be connected for Auto Choke to work.
3. Make sure the circuit breakers are properly set (see Figure 8 below).
   
   1. 240/120VMain Circuit Breaker Operating Position
   2. 240/120V Main Circuit Breaker Tripped Position
   3. 120V Circuit Breaker Operating Position
   4. 120V Circuit Breaker Tripped Position
4. Move the fuel shut off valve to the ON position (see Figure 9 below).
   
5. Choose starting method:
   1. Electric Start: Push the engine control switch to the START position until the engine starts. Once the engine starts, release the switch; the switch will automatically move into the RUN position (see figure 10 below).
      

NOTICE
Failure to release the engine control switch once the engine starts could result in damage to the generator. Never put the engine control switch to the START position while the engine is running; this could damage the generator.

NOTE: If the engine fails to start after 5 seconds, release the engine control switch. Let the generator sit idle for 15 seconds and then repeat step 4. If the cranking speed drops after each unsuccessful attempt, then the battery may not be adequately charged.

NOTE: The generator is equipped with a battery charging feature. Once the engine is running, a small charge is supplied to the battery via the battery cables and will slowly recharge the battery.

2. Recoil Start (WPro8500 only): Firmly grasp and pull the recoil handle slowly until you feel increased resistance. At this point, apply a rapid pull while pulling up and slightly away from the generator (see Figure 11).
   Note: If battery is dead or disconnected you will have to set choke to "On" manually and move to "Off" when engine starts.
   
3. Remote Start: Click START on the wireless key FOB provided (see Figure 12). After the generator is running, there will be a delay of electrical output for 15 seconds. If the remote it not paired see pairing procedure in section above.
   

STOPPING THE UNIT

Normal Operation
During normal operation, use the following steps to stop your generator:

1. Remove any connected loads from the control panel receptacles.
2. Allow the generator to run at "no load" to reduce and stabilize engine and alternator temperatures.
3. Position the engine control switch to OFF (see figure 13).
   
   NOTE If you plan to store the generator after use, turn the fuel shutoff valve to the OFF position and allow the fuel to be consumed from the carburetor.
4. To stop generator remotely simply push the STOP button on the wireless control (see figure 14). The generator will run for an additional 15 seconds as it goes through a cool down cycle before shutting off.
   
5. Turn the fuel shutoff valve to the OFF position.

During an Emergency
If there is an emergency and the generator must be stopped quickly, position the engine control switch to the OFF position immediately.

MAINTENANCE

BEFORE PERFORMING MAINTENANCE ON THE GENERATOR, REVIEW THE SAFETY SECTION, AS WELL AS THE FOLLOWING SAFETY MESSAGES.

WARNING
Avoid accidentally starting the generator during maintenance by removing the spark plug boot from the spark plug. For electric start generators, also disconnect the battery cables from the battery (disconnect the black negative (-) cable first) and place the cables away from the battery posts to avoid arcing.
Allow hot components to cool to the touch prior to performing any maintenance procedure.

WARNING
Internal pressure can build in the engine crankcase while the engine is running. Removing the oil fill plug/ dipstick while the engine is hot can cause extremely hot oil to spray out of the crankcase and can severely burn skin. Allow engine oil to cool for several minutes before removing the oil fill plug/dipstick.

Always perform maintenance in a wellventilated area. Gasoline fuel and fuel vapors are extremely flammable and can ignite under certain conditions.

MAINTENANCE SCHEDULE

WARNING
Failure to perform periodic maintenance or not following maintenance procedures can cause the generator to malfunction and could result in death or serious injury.

NOTICE
Periodic maintenance intervals vary depending on generator operating conditions. Operating the generator under severe conditions, such as sustained high-load, high-temperature, or unusually wet or dusty environments, will require more frequent periodic maintenance. The intervals listed in the maintenance schedule should be treated only as a general guideline.

CAUTION
Avoid skin contact with engine oil or gasoline. Prolonged skin contact with engine oil or gasoline can be harmful. Frequent and prolonged contact with engine oil may cause skin cancer. Take protective measures and wear protective clothing and equipment. Wash all exposed skin with soap and water.

Following the maintenance schedule is important to keep the generator in good operating condition. The following is a summary of maintenance items by periodic maintenance intervals.

TABLE 1: MAINTENANCE SCHEDULE - OWNER PERFORMED

Maintenance Item	Before Every Use	After First 20 Hours or First Month of Use	After 50 Hours of Use or Every 6 Months	After 100 Hour of Use or Every 6 Months	After 300 Hours of Use or Every Year
Engine Oil	Check Level	Change	Change	-	-
Cooling Features	Check/Clean	-	-	-	-
Air Filter	Check	-	Clean*	-	Replace
Spark Plug	-	-	-	Check/Clean	Replace

*Service more frequently if operating in dry and dusty conditions

TABLE 2: MAINTENANCE SCHEDULE - AUTHORIZED WESTINGHOUSE SERVICE DEALER PERFORMED

Maintenance Item	Before Every Use	After First 20 Hours or First Month of Use	After 50 Hours of Use or Every 6 Months	After 100 Hour of Use or Every 6 Months	After 300 Hours of Use or Every Year
Valve Clearance	-	-	-	-	Check/Adjust
Fuel Filter	-	-	-	Check/Clean	-
Idle Speed	-	-	-	-	Check/Adjust

ENGINE OIL MAINTENANCE

Engine Oil Specification

1. Only use the engine oil specified in Figure 15.
   
2. Only use 4-stroke/cycle engine oil. NEVER USE 2-STROKE/CYCLE OIL. Synthetic oil is an acceptable substitute for conventional oil.

CHECKING ENGINE OIL

NOTICE
Always maintain proper engine oil level. Failure to maintain proper engine oil level could result in severe damage to the engine and/or shorten the life of the engine. Always use the specified engine oil. Failure to use the specified engine oil can cause accelerated wear and/or shorten the life of the engine.

Engine oil level should be checked before every use.

1. Always operate or maintain the generator on a flat surface.
2. Stop engine if running.
3. Let engine sit and cool for several minutes (allow crankcase pressure to equalize).
4. With a damp rag, clean around the oil fill plug/dipstick.
5. Remove oil fill plug/dipstick (see Figure 16 below).
   
6. Check oil level: When checking the engine oil, remove the oil fill plug/dipstick and wipe it clean. Thread the oil fill plug/dipstick all the way back in and then remove and check the oil level on the oil fill plug/dipstick.
   • Acceptable Oil Level – Oil is visible on the crosshatches between the H and L lines on the oil fill plug/dipstick (see Figure 17).
     
   • Low Oil – Oil is below the L line on the oil fill plug/ dipstick.

ADDING ENGINE OIL

1. Always operate or maintain the generator on a flat surface.
2. Stop engine if running.
3. Let engine sit and cool for several minutes (allow crankcase pressure to equalize).
4. Thoroughly clean around the oil fill plug/dipstick.
5. Remove oil fill plug/dipstick and wipe clean.
6. Select the proper engine oil as specified in Figure 15.
7. Using the supplied funnel and tube, slowly add engine oil to the engine. Stop frequently to check the level to avoid overfilling.
8. Continue to add oil until the oil is at the correct level. See Figure 17.

CHANGING ENGINE OIL

1. Stop the engine.
2. Let engine sit and cool for several minutes (allow crankcase pressure to equalize).
3. Place oil pan (or suitable container) under the oil drain plug (see Figure 18).
4. With a damp rag, thoroughly clean around the oil drain plug.
5. Remove the oil drain plug (see Figure 18).Once removed, place the oil drain plug on a clean surface.
6. Allow oil to completely drain.
7. Replace oil drain plug.
8. Fill crankcase with oil following the steps outlined in Adding Engine Oil.

NOTICE
Never dispose of used engine oil by dumping the oil into a sewer, on the ground, or into ground water or waterways. Always be environmentally responsible. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility.

AIR FILTER MAINTENANCE

WARNING
Never use gasoline or other flammable solvents to clean the air filter. Use only household detergent soap to clean the air filter.

Cleaning the Air Filter
The air filter must be cleaned after every 50 hours of use or 3 months (frequency should be increased if generator is operated in a dusty environment).

1. Turn off the generator and let it cool for several minutes if running.
2. Move the generator to a flat, level surface.
3. Unclip the clips on the top and bottom of the air filter cover (Figure 19).
   
4. Remove the black coarse air filters.
5. Wash the foam air filter elements by submerging the elements in a solution of household detergent soap and warm water. Slowly squeeze the foam to thoroughly clean.

NOTICE
NEVER twist or tear the foam air filter element during cleaning or drying. Only apply slow but firm squeezing action.

6. Rinse in clean water by submerging the air filter elements in fresh water and applying a slow squeezing action

NOTICE
Never dispose of soap cleaning solution used to clean the air filter by dumping the solution into a sewer, on the ground, or into ground water or waterways. Always be environmentally responsible. Follow the guidelines of the EPA or other governmental agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility.

7. Dispose of used soap cleaning solution properly.
8. Dry the air filter elements by again applying a slow firm squeezing action.
9. Once the air filters are dry, coat the air filters with clean engine oil (see Figure 20 below).
   
10. Squeeze the filters to remove any excess oil.
11. Install the filters back into the unit. If there are two filters make sure the gray (fine) air filter goes in first followed by the black (coarse) air filter on the outside.
12. Install the air filter cover and secure the air filter assembly.

SPARK PLUG MAINTENANCE

The spark plug must be checked and cleaned after every 100 hours of use or 6 months and must be replaced after 300 hours of use or every year.

1. Stop the generator and let it cool for several minutes if running.
2. Move the generator to a flat, level surface.
3. Remove the spark plug boot by firmly pulling the plastic spark plug boot handle directly away from the engine (see Figure 21).
   

NOTICE
Never apply any side load or move the spark plug laterally when removing the spark plug. Applying a side load or moving the spark plug laterally may crack and damage the spark plug boot.

4. Clean area around the spark plug.
5. Using the 13/16" spark plug socket wrench provided, remove the spark plug from the cylinder head.
6. Place a clean rag over the opening created by the removal of the spark plug to make sure no dirt can get into the combustion chamber.
   Inspect the spark plug for:
   • Cracked or chipped insulator
   • Excessive wear
   • Spark plug gap (the acceptable limit of 0.027–0.032 in. [0.60 – 0.80 mm]) (see Figure 22).
     

NOTICE
Use only recommended spark plugs when servicing. The manufacturer is not responsible for engine damage when using spark plugs not recommended by the manufacturer.

7. Install the spark plug by carefully following the steps outlined below:
   1. Carefully insert the spark plug back into the cylinder head. Hand-thread the spark plug until it bottoms out.
   2. Using the 13/16" spark plug socket wrench provided, turn the spark plug to ensure it is fully seated.
   3. Replace the spark plug boot, making sure the boot fully engages the spark plug's tip.

Recommended Spark Plug Replacement:
AC Delco: 4EXLS
Autolite: 52
Champion: N9YC
Bosch: W7DC
Torch: F7TC

CHECKING AND ADJUSTING VALVE LASH

CAUTION
Checking and adjusting valve lash must be done when the engine is cold.

1. Remove the rocker arm cover and carefully remove the gasket. If the gasket is torn or damaged, it must be replaced.
2. Remove the spark plug so the engine can be rotated more easily.
3. Rotate the engine to top dead center (TDC) of the compression stroke. Looking through the spark plug hole, the piston should be at the top.
4. Both the rocker arms should be loose at TDC on the compression stroke. If they are not, rotate the engine 360°.
5. Insert a feeler gauge wbetween the rocker arm and the push rod and check for clearance (see Figure 23). See table below for valve lash specifications
   
   1. Push Rod,
   2. Feeler Gauge Area
   3. Rocker Arm,
   4. Jam Nut,
   5. Adjusting Nut

WPro8500 and WPro12000 Standard Valve Lash
	Intake Valve	Exhaust Valve
Valve Lash	0.0031 ± 0.0047 in (0.08 ± 0.12 mm)	0.0051 ± 0.0066 in (0.13 ± 0.17 mm)
Bolt Torque	8-12N.m	8-12N.m

6. If an adjustment is required, hold the adjusting nut and loosen the jam nut.
7. Turn the adjusting nut to obtain the correct valve lash. When the valve lash is correct, hold the adjusting nut and tighten the jam nut to 106 in-lb (12 N•m).
8. Recheck the valve lash after tightening the jam nut.
9. Perform this procedure for both the intake and exhaust valves.
10. Install the rocker arm cover, gasket and spark plug.

BATTERY SERVICE

To ensure the battery remains charged, the generator should be started every 2 to 3 months and run for a minimum of 15 minutes or a charger should be plugged into the generator and the generator should be charged overnight. Make sure the engine control switch is in the "RUN" position when charging. Plug the cord from the charger into the charging port on the generator. Plug the charger into a 110/120-volt AC outlet.

Battery Replacement

1. Remove the spark plug wire from spark plug.
2. Loosen and remove the bolts on the battery hold down plate and swing the plate out.
3. Tip the battery forward slightly to access battery cables.
4. Disconnect the black negative (-) battery cable from the battery first.
5. Disconnect the red positive (+) battery cable second and remove the battery.

NOTICE
Dispose of the used battery properly according to the guidelines established by your local or state government.

6. Install the new battery into the generator frame.
7. Connect the red positive (+) battery cable to the battery first.
8. Connect the black negative (-) battery cable to the battery second.
9. Install the battery hold-down plate using the nuts removed in step 2.
10. Install the spark plug wire onto spark plug.

See below for the battery specification when replacing the battery.

Model	WPro8500
Westinghouse Part No.	100557
After Market Battery Model	YT9A
Volts	12
Amp Hr	9
Dimensions	5 5/16in by 3in by 5 3/8in
Model	WPro12000
Westinghouse Part No.	100639
After Market Battery Model	YT51913-22
Volts	12 V
Amp Hr	20
Dimensions	7 1/8in by 3in x 6 9/16in

CLEANING THE PRODUCT

It is important to inspect and clean the generator before every use.

Clean All Engine Air Inlet and Outlet Ports – Make sure all engine air inlet and outlet ports are clean of any dirt and debris to ensure the engine does not run hot.

Clean All Engine Cooling Fins – Use a damp rag and a brush to loosen and remove all dirt on or around the engine's cooling fins.

Clean All Alternator Cooling Air Inlets and Exhaust Ports – Make sure the cooling air inlets and exhaust ports of the alternator are free of any debris and obstructions. Use a vacuum cleaner to remove dirt and debris stuck in the cooling air inlets and exhaust ports.

General Cleaning of the Generator – Use a damp rag to clean all remaining surfaces.

STORING THE PRODUCT

WARNING
Never store a generator with fuel in the tank indoors or in a poorly ventilated area where the fumes can come in contact with an ignition source such as a:

1. pilot light of a stove, water heater, clothes dryer or any other gas appliance; or
2. spark from an electric appliance.

NOTICE
Gasoline stored for as little as 60 days can go bad, causing gum, varnish and corrosive buildup in fuel lines, fuel passages and the engine. This corrosive buildup restricts the flow of fuel, preventing an engine from starting after a prolonged storage period.

Proper care should be taken to prepare the generator for any storage.

1. Make sure the Engine Switch is switched to OFF so the generator does not draw power from battery.
2. Clean the generator.
3. Drain all gasoline from the fuel tank as best as possible.
4. With the fuel shut off valve open, start the engine and allow the generator to run until all the remaining gasoline in the fuel lines and carburetor is consumed and the engine shuts off.
5. Close the fuel shut off valve.
6. Change the oil (see Changing Engine Oil).
7. Remove the spark plug (see Spark Plug Maintenance) and place about 1 tablespoon of oil in the spark plug opening. While placing a clean rag over the spark plug opening, slowly pull there coil handle to allow the engine to turn over several times. This will distribute the oil and protect the cylinder wall from corroding during storage.
8. Replace the spark plug (see Spark Plug Maintenance).
9. Move the generator to a clean, dry place for storage.

TROUBLESHOOTING

WARNING
Before attempting to service or troubleshoot the generator, the owner or service technician must first read the owner's manual and understand and follow all safety instructions. Failure to follow all instructions may result in conditions that can lead to voiding of the EPA certification or product warranty, serious personal injury, property damage or even death.

PROBLEM	POTENTIAL CAUSE	SOLUTION
Engine is running but no electrical output	Circuit breakers are tripped.	Reset the circuit breakers and check for overload condition.
	The power cord's plug connector is not fully engaged in the generator's outlet.	Verify plug connector is firmly engaged in the generator's outlet. If using the 240V outlet, make sure plug connector is rotated 1/4 turn in the clockwise direction.
	Faulty or defective power cord	Replace power cord.
	Faulty or defective electrical appliance	Try connecting a known good appliance to verify the generator is producing electrical power.
	GFCI outlet is tripped	Switch the GFCI breaker to operating position.
	If trying 1-5 above does not solve the problem, the cause might be the generator has a fault.	Take the generator to your nearest authorized service dealer.
Engine will not start or remain running while trying to start.	Fuel shutoff valve is in the OFF position.	Move the fuel shut off valve to the ON position.
	Generator is out of gasoline.	Add gasoline to the generator.
	Fuel flow is obstructed.	Inspect and clean fuel delivery passages.
	Starting battery may have insufficient charge	On electric start models only. Check battery output and charge battery as necessary.
	Dirty air filter	Check and clean the air filter.
	Low oil level shut down switch is preventing the unit from starting.	Check oil level and add oil if necessary.
	Spark plug boot is not fully engaged with the spark plug tip.	Firmly push down on the spark plug boot to ensure the boot is fully engaged
	Spark plug is faulty.	Remove and check the spark plug. Replace if faulty.
	Stale fuel	Drain fuel and replace with fresh fuel.
	If trying 1-9 above does not solve the problem, the cause might be the generator has a fault.	Take the generator to your nearest authorized service dealer.
Remote start system not working	Low battery in remote start key fob	Replace batteries in key fob.
	Exceeding the range of remote start key fob	Move closer to generator. Must be no more than 100 ft away.
	Remote start key fob not programmed to generator	Program key fob to generator.
The unit suddenly stops running	Generator is out of fuel.	Check fuel level. Add fuel if necessary.
	The low oil shut down switch has stopped the engine.	Check oil level and add oil if necessary.
	Too much load	Restart the generator and reduce the load.
	If trying 1-3 above does not solve the problem, the cause might be a fault in the generator.	Take the generator to your nearest authorized service dealer.
Engine runs erratic/does not hold a steady RPM	Dirty air filter	Clean the air filter.
	Applied loads maybe cycling on and off	As applied loads cycle, changes in engine speed may occur; this is a normal condition.
	If trying 1-2 above does not solve the problem, the cause might be a fault in the generator	Take the generator to your nearest authorized service dealer.

WPro8500 EXPLODED VIEW

WPro8500 EXPLODED VIEW PART NUMBERS

WPro8500 ENGINE VIEW

WPro8500 ENGINE VIEW PART NUMBERS

WPro12000 EXPLODED VIEW

WPro12000 EXPLODED VIEW PART NUMBERS

WPro12000 ENGINE VIEW

WPro12000 ENGINE VIEW PART NUMBERS

SCHEMATIC

WPro8500

WPro12000

WestinghousePortablePower.com
Service Hotline: (855) 944-3571
777 Manor Park Drive
Columbus, OH 43228

Documents / Resources

References

• Warranty Registration | Westinghouse Outdoor Equipment
• Westinghouse Outdoor Power Equipment | Westinghouse Outdoor Equipment

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