Westinghouse WPro8500 and WPro12000 portable generators



Westinghouse WPro8500 and WPro12000 portable generators

Basic and Product Technical Specifications

1. Overview

This document is the official user manual for Westinghouse's two portable generators (WPro8500, WPro12000), covering the entire process from safe operation to maintenance troubleshooting, as well as product registration, after-sales support and other service information. It emphasizes the "continuous product improvement policy" and reserves the right to modify specifications. Some images may vary due to model differences.

2. Technical specification comparison

Model Running Watts Peak Watts Fuel Tank Capacity (L/G) Rated RPM Ignition Type Spark Plug Engine Displacement (cc) Stroke x Bore Oil Capacity (L) Oil Type THD

WPro8500 8500 11500 25L / 6.6G 3600 TCI F7TC 457 66×90 1.1 10W30 <5%

WPro12000 12000 15000 40L / 10.5G 3600 TCI F7TC 713 71×80 1.6 10W30 <5%

Note: Both generators do not require altitude carburetor modification. For every 300 meters (1000 feet) increase in altitude, the engine horsepower decreases by approximately 3.5% (the decrease is more significant without carburetor modification). For altitude kits, please contact the service team.

Safety warnings and regulatory requirements

1. Core security warning

California Proposition 65 Warning: ① Engine exhaust contains chemicals known to cause cancer, birth defects, or reproductive harm; ② Some components of the product and related accessories contain harmful chemicals of the same type, and hand washing is required after operation.

DANGER level risk:

Do not use in damp/rainy/snowy environments to avoid short circuits or malfunctions;

It is prohibited to operate in a confined space. The exhaust contains carbon monoxide (colorless, odorless, and toxic), and can only be used outdoors and away from doors, windows, and ventilation openings.

Warning level risk:

Electric shock risk: A certified electrician is required to connect to the power grid, use grounding extension cords, and avoid touching live terminals/operating with wet hands;

Gasoline risks: refuel in outdoor ventilated areas, refuel after cooling down, do not overfill (leave room for expansion), stay away from fire sources;

Equipment abnormality: It is prohibited to operate when the load overheats/output drops/sparks/smoke occur, and it is also prohibited to supply power to medical equipment.

2. Definition of Security Terms

Meaning of Terms

DANGER's failure to avoid may result in death or serious injury

Warning: Failure to avoid may result in death or serious injury

CAUTION may cause minor/moderate injuries if not avoided

NOTICE may cause equipment/property damage or abnormal operation

NOTE: Necessary operations/conditions to ensure the normal operation of equipment

Unpacking and assembly process

1. Open box contents

Model includes items

WPro8500 ① User Manual; ② Quick Start Guide/Maintenance Plan; ③ Lift bracket (1 piece); ④ Wireless remote control (1 unit); ⑤ 1.1L SAE 10W30 engine oil (1 bottle); ⑥ Spark plug socket wrench (1 piece); ⑦ Wheel kit accessory box; ⑧ Funnel (1 piece)

WPro12000 ① User Manual; ② Quick Start Guide/Maintenance Plan; ③ Wireless remote control (1 unit); ④ 1.6L SAE 10W30 engine oil (1 bottle); ⑤ Spark plug socket wrench (1 piece); ⑥ Wheel kit accessory box; ⑦ Funnel (1 piece)

Wheel kit accessory box: 2 washers, 4 M8 × 16mm flange bolts, 2 split pins, 2 wheel axle pins.

2. Assembly steps

Wheel and foot installation:

Place the generator on a horizontal surface, elevate the rear with wooden blocks, and install the support feet with M8 flange bolts;

The axle pin passes through the washer and the wheel, and is installed through the frame axle bracket. The split pin is fixed, and the other side of the wheel is operated repeatedly;

Attention: Before assembly, the engine oil and fuel must be drained. The wheel kit is only applicable to this generator and is not allowed for road use.

Battery installation (key steps for preventing electric shock):

Confirm that the positive (red) cable is securely fastened to the positive pole of the battery and covered with a protective cover;

Remove the protective packaging of the negative (black) cable terminal, disconnect the cable tie and lead it to the negative pole;

Open the black sleeve, tighten the negative cable, and then put back the protective sleeve;

Rule: Connect the power first and then the negative, disconnect the power first and then the negative, prohibit metal tools from crossing the two poles, and use insulated tools for operation.

Installation of lifting bracket (WPro8500 only): Align the bracket on the top of the fuel tank and fix it with 4 M8 flange bolts.

Operation Guide

1. Preparation before startup

Location selection: Outdoor ventilation, level and solid surface, at least 6 feet (1.8 meters) away from buildings/combustibles, away from doors, windows/ventilation openings.

Environmental requirements: Do not operate on rainy/snowy days, operate on dry surfaces to avoid loose materials (sand/grass debris) blocking the air vents.

Load and grounding: Disconnect all loads (unplug extension wires) before starting; A certified electrician is required to determine whether a grounding rod is needed (usually required when connecting the backup power supply to the transfer switch), and connect the control panel grounding terminal with a ≥ 10 AWG copper wire for grounding.

2. Fuel and oil requirements

Fuel: Only use unleaded gasoline, ethanol content ≤ 10%, octane rating ≥ 87; Stop the machine for cooling before refueling, ensure that the oil level does not exceed the neck of the filling port, and check for leaks after refueling.

Engine oil: The new engine has no engine oil, and 10W30 engine oil must be added before the first start-up (5W30 in winter and SAE30 in summer); Check the liquid level of the refrigeration unit, which should be between the H (high) and L (low) marks on the dipstick.

3. Startup method

Startup method, operating steps, applicable models, precautions

Electric start 1. Confirm that the engine oil is sufficient and the battery is connected; 2. Reset the circuit breaker; 3. Turn the fuel valve to ON; 4. Press the switch to START and release it after starting (automatic return to RUN). Both options are applicable. If it does not start for 5 seconds, release it and retry after 15 seconds; Charging when the battery is depleted

Backlash start 1. Same as 1-3 above; 2. Slowly pull the rope until the resistance increases, and quickly pull it upwards away from the generator. When only the WPro8500 battery runs out of power/disconnects, manually turn on the choke and turn it off after starting

Remote start 1. Turn the switch to RUN; 2. Long press the REMOTE PAIRING button on the panel for 3 seconds; 3. Long press the STOP button on the remote control until the indicator light flashes, and then long press the START button until it flashes; 4. Press and hold the PAIRING key for 3 seconds to complete pairing; 5. Press the START button on the remote control to start both models, with an effective distance of ≤ 100 feet (affected by battery level). After starting, there will be a 15 second delay in output

4. Stop method

Normal stop: 1 Disconnect all loads; 2. Cooling during no-load operation; 3. Turn the switch to OFF; 4. Close the fuel valve (allow the carburetor to run out of fuel during long-term storage).

Emergency stop: Simply turn the engine control switch to OFF.

Special maintenance operation

Oil change: When the engine is in a cold state, drain the oil from the oil pan through the oil drain plug, remove the plug and drain, then reinstall and add oil to the standard level.

Air filter cleaning: Remove the cover and take out the filter cotton, clean with household detergent and warm water, squeeze and drain (do not twist), air dry, apply a thin layer of cleaning oil, and reinstall according to the "fine filter (ash) inside, coarse filter (black) outside".

Spark plug maintenance: Remove the spark plug with a spark socket wrench, check the insulation layer for cracks and a gap of 0.027-0.032 inches (0.60-0.80mm), clean and reinstall it; Recommended replacement models: AC Delco 4EXLS, Autolite 52, Champion N9YC, Bosch W7DC, Torch F7TC.

Battery maintenance: Start the generator every 2-3 months and charge it for 15 minutes, or connect the charger to the charging port (RUN mode) for charging; The replacement model is as follows:

Model Westinghouse Part Number Compatible Battery Model Voltage (V) Capacity (Ah) Size (inches)

WPro8500 100557 YT9A 12 9 5 5/16 × 3 × 5 3/8

WPro12000 100639 YT51913-22 12 20 7 1/8 × 3 × 6 9/16

Troubleshooting

Possible causes and solutions for the problem

The engine is running but there is no power output. 1. The circuit breaker has tripped; 2. The power plug is not securely plugged in; 3. Power cord malfunction; 4. Electrical equipment malfunction; 5. GFCI trips; 6. Internal equipment malfunction: 1. Reset the circuit breaker and check for overload; 2. Re plug (the 240V plug needs to be turned clockwise by 1/4 turn); 3. Replace the power cord; 4. Connect to normal equipment testing; 5. Reset the GFCI circuit breaker; 6. Send to authorized service points

The engine cannot start/stalls after starting. 1. The fuel valve is closed; 2. Lack of gasoline; 3. Fuel pipeline blockage; 4. The startup battery runs out of power; 5. The air filter is dirty; 6. Low oil level (low oil protection); 7. Spark plug not tightened/faulty; 8. Fuel deterioration: 1. Open the fuel valve; 2. Add gasoline that meets the requirements; 3. Check and clean the fuel passage; 4. Charging (electric start only); 5. Clean/replace the air filter; 6. Add engine oil to the standard level; 7. Tighten/replace spark plugs; 8. Drain the deteriorated fuel and add new fuel

Remote start failure: 1. The remote control battery is dead; 2. Exceeding the remote control distance (>100 feet); 3. The remote control is not paired with the generator. 1. Replace the remote control battery; 2. Close to the generator (≤ 100 feet); 3. Follow the pairing process again

Sudden shutdown of generator: 1. Lack of fuel; 2. Low oil level (protective shutdown); 3. Excessive load; 4. Internal equipment malfunction: 1. Add gasoline; 2. Add engine oil; 3. Reduce load after restart; 4. Send to authorized service points

Product drawings

Explosion view: WPro8500 (page 26), WPro12000 (page 31) complete machine parts breakdown, including part numbers and names (such as generator assembly, fuel tank, control panel, etc.).

Engine view: Position markings and part numbers for the internal structures (pistons, connecting rods, valves, ignition coils, etc.) of two engine models.

Schematic diagram: Schematic diagram of electrical system (voltage regulator, wiring harness), fuel system (carbon canister, oil pipe) and other connections.