1. Introduction
This manual provides essential information for the safe and efficient operation, setup, and maintenance of your General Pump Triplex Pressure Washer Pump, Model EP1812E17. Please read this manual thoroughly before installation or operation to ensure proper use and to prevent damage or injury.
The General Pump Triplex Pressure Washer Pump is designed for high-performance pressure washing applications, featuring a direct drive system, solid ceramic pistons, and premium bearings for durability and reliability.
2. Safety Information
WARNING: Failure to follow these safety instructions could result in serious injury or property damage.
- Always wear appropriate personal protective equipment (PPE), including eye protection, gloves, and hearing protection, when operating or servicing the pump.
- Ensure the pump is securely mounted and all connections are tight before operation.
- Do not operate the pump without adequate water supply. Running dry can cause severe damage.
- Disconnect power before performing any maintenance or service.
- Keep children and pets away from the operating area.
- Do not direct the high-pressure spray at people, animals, or electrical equipment.
- Use only genuine General Pump replacement parts.
3. Setup
3.1 Unpacking and Inspection
Carefully remove the pump from its packaging. Inspect for any signs of shipping damage. Report any damage to your supplier immediately.
3.2 Mounting the Pump
The pump is designed for direct drive electric motor applications. Ensure the mounting surface is stable and capable of supporting the pump's weight and operational forces.
Figure 1: General Pump Triplex Pressure Washer Pump, Model EP1812E17. This image shows the overall view of the pump with its brass manifold and black housing, ready for installation.
3.3 Water Inlet Connection
Connect a suitable water supply hose to the pump's inlet port. Ensure the water supply meets the pump's flow rate requirements (4 GPM minimum) and is filtered to prevent debris from entering the pump.
3.4 High-Pressure Outlet Connection
Connect the high-pressure hose to the pump's outlet port. Ensure all connections are sealed properly to prevent leaks.
3.5 Oil Fill
Before initial operation, ensure the pump crankcase is filled with the recommended oil to the correct level. Refer to the specifications section for oil type and capacity.
Figure 2: Side view of the General Pump Triplex Pressure Washer Pump, Model EP1812E17. This view highlights the electric flange connection point and the robust construction of the pump housing.
4. Operating Instructions
4.1 Pre-Operation Checklist
- Verify all connections (water inlet, high-pressure outlet, power) are secure.
- Check oil level in the crankcase.
- Ensure adequate water supply is connected and turned on.
- Purge air from the system by allowing water to flow through the pump and out the high-pressure hose until a steady stream is observed.
4.2 Starting the Pump
Once the pre-operation checklist is complete, turn on the power to the electric motor. The pump will begin to pressurize the system.
4.3 During Operation
- Monitor the pump for unusual noises or vibrations.
- Ensure consistent water flow. Interruption of water supply can damage the pump.
- Do not allow the pump to run in bypass mode for extended periods, as this can lead to overheating.
4.4 Shutting Down the Pump
- Turn off the power to the electric motor.
- Turn off the water supply.
- Relieve any residual pressure in the system by activating the spray gun or opening a valve.
- Disconnect hoses and drain the pump if storing in freezing temperatures.
5. Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your General Pump Triplex Pressure Washer Pump.
5.1 Oil Changes
Change the pump oil after the first 50 hours of operation, then every 3 months or 500 hours, whichever comes first. Use General Pump Series 100 oil or equivalent non-detergent pump oil.
5.2 Inlet Filter Cleaning
Regularly inspect and clean the inlet water filter to prevent debris from entering the pump and causing damage.
5.3 Seal and Valve Inspection
Periodically inspect seals and valves for wear or damage. Replace worn components promptly to maintain pump efficiency and prevent leaks.
5.4 Winterization
If storing the pump in an environment where temperatures may drop below freezing, it is essential to winterize it. Drain all water from the pump and flush with an anti-freeze solution designed for pressure washer pumps.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No pressure or low pressure |
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| Pump making unusual noise |
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| Oil leaking from pump |
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7. Specifications
| Feature | Detail |
|---|---|
| Model Number | EP1812E17 |
| Brand | General Pump |
| Pump Type | Triplex Plunger Pump |
| Maximum Flow Rate | 4.0 Gallons Per Minute (GPM) |
| Maximum Pressure | 3045 PSI |
| Drive Type | Direct Drive, Electric Flange |
| Piston Material | Solid Ceramic |
| Bearings | Premium |
| Crankshaft | Oversized Forged |
| Material | Metal (Brass manifold, other components) |
| Item Weight | 15.4 Pounds |
| UPC | 682491066125 |
| ASIN | B00DS5OOD8 |
8. Warranty and Support
8.1 Warranty Information
General Pump products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official General Pump website. Keep your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, parts, or service inquiries, please contact your authorized General Pump dealer or visit the General Pump official website for contact information. When contacting support, please have your pump's model number (EP1812E17) and serial number available.