1. Introduction
This manual provides essential instructions for the safe operation, maintenance, and troubleshooting of your FIRMAN P03504 Gas Portable Generator. Please read this manual thoroughly before operating the generator to ensure proper use and to prevent injury or damage.
Image 1.1: The FIRMAN P03504 Gas Portable Generator. This image displays the overall design of the generator, including its frame, engine, control panel, and wheels.
The FIRMAN P03504 is a gas-powered portable generator designed to provide 4450 starting watts and 3550 running watts. It features a 208cc engine, a 5-gallon fuel tank for extended runtime, and a CO Alert system for enhanced safety. This generator is suitable for various applications, including home backup, RV use, and outdoor power needs.
2. Safety Information
Operating a generator safely is paramount. Always follow all safety warnings and instructions provided in this manual.
2.1 Carbon Monoxide (CO) Alert System
This generator is equipped with a built-in CO Alert system. Carbon monoxide is a colorless, odorless, and poisonous gas. The CO Alert system is designed to detect hazardous levels of carbon monoxide and automatically shut down the engine to prevent CO accumulation around the generator. If the CO Alert indicator light illuminates, move the generator to an open, well-ventilated area immediately and allow it to cool before attempting to restart.
Image 2.1: Close-up of the CO Alert indicator light on the generator's control panel. This light indicates when the CO Alert system has detected dangerous carbon monoxide levels or a system fault.
2.2 General Safety Precautions
- Never operate the generator indoors or in enclosed spaces. Generators produce carbon monoxide exhaust, which can be fatal.
- Ensure adequate ventilation when operating the generator outdoors. Position it away from windows, doors, and vents.
- Keep children and pets away from the generator during operation.
- Do not refuel the generator while it is running or hot. Allow it to cool down before adding fuel.
- Store fuel in approved containers in a well-ventilated area, away from ignition sources.
- Always ground the generator properly before use.
- Wear appropriate personal protective equipment (PPE) when handling the generator.
3. Unpacking and Assembly
Carefully unpack the generator and all included components. Inspect for any shipping damage. If damage is found, contact customer support immediately.
3.1 Included Components
The following items are typically included with your FIRMAN P03504 generator:
- FIRMAN P03504 Generator Unit
- Wheel Kit (includes wheels, axles, and mounting hardware)
- Engine oil bottle
- Oil funnel
- Spark plug wrench
- Two double open-ended wrenches (10mm x 12mm)
- Single folding handle
- Owner's Manual
Image 3.1: Visual representation of the included accessories: tool kit, engine oil bottle, oil funnel, spark plug wrench, two double open-ended wrenches, single folding handle, and 8-inch never-flat wheels.
3.2 Wheel Kit Installation
To install the wheel kit:
- Carefully tilt the generator to access the axle mounting points.
- Attach the axles to the generator frame using the provided hardware.
- Slide the wheels onto the axles and secure them with the appropriate pins or nuts.
- Attach the folding handle to the designated mounting points on the frame.
4. Setup
Before starting the generator for the first time, it is crucial to add engine oil and fuel.
4.1 Adding Engine Oil
The generator is shipped without engine oil. Operating the engine without sufficient oil will cause severe damage and void the warranty. Use the provided oil funnel to add the recommended type and amount of oil.
- Locate the oil fill cap/dipstick.
- Remove the cap and slowly pour the engine oil into the crankcase using the funnel.
- Check the oil level with the dipstick; it should be at the 'Full' mark.
- Securely replace the oil fill cap. The generator features a low oil shutoff to prevent engine damage if oil levels become too low during operation.
4.2 Adding Fuel
The FIRMAN P03504 operates on gasoline. Always use fresh, unleaded gasoline with an octane rating of 87 or higher.
Image 4.1: The FIRMAN P03504 generator with an overlay indicating it is 'GAS FUELED'. This highlights the fuel type required for operation.
- Ensure the generator is turned off and has cooled down before refueling.
- Open the fuel cap on the 5-gallon steel tank.
- Slowly add gasoline, being careful not to overfill. Leave some space for fuel expansion.
- Securely replace the fuel cap.
Image 4.2: Graphic illustrating the generator's 5-gallon fuel tank, 14 hours of runtime at 50% load, 208cc OHV engine, and CO Alert system.
5. Operating Instructions
Follow these steps to start and operate your FIRMAN P03504 generator.
5.1 Starting the Generator (Recoil Start)
- Ensure the generator is on a level surface and in a well-ventilated outdoor area.
- Check oil and fuel levels.
- Turn the fuel valve to the 'ON' position.
- Move the choke lever to the 'CHOKE' position (if the engine is cold).
- Turn the engine switch to the 'ON' position.
- Firmly grasp the recoil starter handle and pull it slowly until resistance is felt, then pull quickly and smoothly to start the engine.
- Once the engine starts, slowly move the choke lever to the 'RUN' position.
Image 5.1: Overview of generator features, highlighting the recoil start mechanism for easy engine ignition.
5.2 Connecting Electrical Loads
Once the generator is running smoothly, you can connect your electrical devices. The generator is equipped with multiple outlets to handle various power requirements.
Image 5.2: Illustrates the generator's capability to power various items such as portable AC units, power tools, RVs, appliances, smartphones, and laptops.
- Ensure the total wattage of connected devices does not exceed the generator's running wattage (3550W).
- Plug in devices one at a time.
- Avoid overloading circuits.
5.3 Stopping the Generator
- Disconnect all electrical loads from the generator.
- Allow the generator to run for a few minutes without load to cool down.
- Turn the engine switch to the 'OFF' position.
- Turn the fuel valve to the 'OFF' position.
6. Maintenance
Regular maintenance ensures the longevity and reliable performance of your generator.
6.1 Engine Maintenance
The FIRMAN P03504 features a durable 208cc 4-stroke engine with a cast iron sleeve, designed for consistent performance. Regular checks are recommended.
Image 6.1: Close-up view of the generator's engine area, emphasizing its robust construction and components.
- Oil Change: Change engine oil after the first 20 hours of operation, then every 50-100 hours or annually.
- Air Filter: Inspect and clean the air filter every 50 hours or more frequently in dusty conditions. Replace if damaged.
- Spark Plug: Inspect the spark plug every 100 hours. Clean or replace as needed using the provided spark plug wrench.
- Fuel Filter: Check and clean the fuel filter periodically.
6.2 Storage
For long-term storage, prepare the generator as follows:
- Drain the fuel tank and carburetor, or add a fuel stabilizer.
- Change the engine oil.
- Remove the spark plug and pour a small amount of engine oil into the cylinder. Pull the recoil starter a few times to distribute the oil, then reinstall the spark plug.
- Clean the exterior of the generator.
- Store in a clean, dry, well-ventilated area.
7. Troubleshooting
This section addresses common issues you might encounter with your generator.
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine will not start | No fuel Low oil level Engine switch OFF Choke not set correctly Spark plug issue | Add fresh fuel Add engine oil Turn engine switch ON Adjust choke lever Inspect/clean/replace spark plug |
| Engine starts then stops | Low oil level CO Alert activated Stale fuel | Add engine oil Move generator to open area, allow to cool Drain and refill with fresh fuel |
| No power output | Circuit breaker tripped Overload | Reset circuit breaker Reduce connected load |
If you encounter issues not listed here or if solutions do not resolve the problem, contact FIRMAN customer support.
8. Specifications
Detailed technical specifications for the FIRMAN P03504 Gas Portable Generator.
Image 8.1: Visual representation of the generator's dimensions (24.8"L x 21.7"W x 21.7"H) and weight (108.5 lbs).
| Specification | Value |
|---|---|
| Brand | Firman |
| Model Name | Gas Portable Generator 4450W Recoil Start 120V with CO alert |
| Part Number | P03504 |
| Starting Wattage | 4450 Watts |
| Running Wattage | 3550 Watts |
| Voltage | 120 Volts |
| Fuel Type | Gasoline |
| Engine Type | 208cc 4 Stroke OHV |
| Tank Volume | 5 Gallons |
| Runtime (50% load) | Up to 14 hours |
| Item Weight | 108.5 Pounds |
| Product Dimensions (L x W x H) | 24.8" x 21.7" x 21.7" |
| Special Features | Automatic Shut Down, CO Sensor, Fuel Efficient, Portable |
| Material | Iron & Cast Iron, Plastic |
| Total Power Outlets | 1 (Note: Product image shows multiple outlets, this spec might be generalized. Refer to product for exact outlet configuration.) |
| UPC | 840876135044 |
9. Warranty and Support
9.1 Warranty Information
The FIRMAN P03504 Gas Portable Generator typically comes with a 3-year limited warranty. Please refer to the warranty card included with your product for specific terms, conditions, and registration details.
9.2 Customer Support
For technical assistance, parts, or warranty claims, please contact FIRMAN customer support. Contact information can usually be found in your owner's manual or on the official FIRMAN website.
For additional information or to explore other FIRMAN products, visit the Firman Store.
