Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your General Pump Triplex Plunger Pump, Model TS1511. Please read this manual thoroughly before installation, operation, or maintenance to ensure proper use and to prevent injury or damage to the equipment. Keep this manual in a safe place for future reference.

Image: General Pump Triplex Plunger Pump, Model TS1511. This image displays the robust construction of the pump unit, highlighting its yellow and brass components.
Safety Information
Your safety and the safety of others are extremely important. Always observe the following safety precautions when working with the pump:
- Read all instructions: Familiarize yourself with the pump's operation and safety features before use.
- Wear appropriate personal protective equipment (PPE): This includes eye protection, hearing protection, and protective clothing.
- Ensure proper ventilation: If operating with a combustion engine, ensure adequate ventilation to prevent carbon monoxide buildup.
- Disconnect power: Always disconnect the power source (engine or motor) before performing any maintenance or service.
- Check for leaks: Regularly inspect all connections and hoses for leaks. High-pressure leaks can cause serious injury.
- Use only approved accessories: Using unapproved parts or accessories can void your warranty and create safety hazards.
- Keep children and pets away: Do not allow unauthorized persons near the pump during operation.
Setup
Proper setup is crucial for the optimal performance and longevity of your pump.
Unpacking
- Carefully remove the pump from its packaging.
- Inspect the pump for any visible damage that may have occurred during shipping. Contact your supplier immediately if damage is found.
- Verify that all components listed in the packing list are present.
Mounting
- Mount the pump on a stable, level surface capable of supporting its weight and the weight of the driving motor/engine.
- Ensure proper alignment between the pump shaft and the drive shaft to prevent premature wear.
- Secure the pump using appropriate bolts and fasteners to prevent vibration and movement during operation.
Connecting Water Supply
- Connect the water inlet hose to the pump's inlet port. Ensure the connection is tight and leak-free.
- Use a water source that provides sufficient flow and pressure for the pump's requirements. A filter should be installed on the inlet line to prevent debris from entering the pump.
- Avoid running the pump dry, as this can cause severe damage.
Connecting High-Pressure Outlet
- Connect the high-pressure hose to the pump's outlet port. Ensure all connections are rated for the maximum operating pressure of the pump.
- Verify that the high-pressure hose is free from kinks, cuts, or damage before operation.
Operating Instructions
Follow these steps for safe and effective operation of your General Pump TS1511.
Pre-Operation Checklist
- Check engine/motor oil levels (if applicable to your drive unit).
- Verify pump oil level is within the recommended range.
- Ensure all hoses are securely connected and free from damage.
- Confirm water supply is connected and turned on.
- Inspect the work area for any hazards.
Starting the Pump
- Ensure the unloader valve is in the bypass position (if equipped) or the trigger gun is open to allow water flow and prevent pressure buildup during startup.
- Start the driving engine/motor according to its manufacturer's instructions.
- Allow water to flow through the pump and hose until all air is purged.
- Engage the unloader valve or close the trigger gun to build operating pressure.
Shutting Down the Pump
- Release pressure by opening the trigger gun or engaging the unloader valve to bypass.
- Shut off the driving engine/motor.
- Turn off the water supply.
- Disconnect hoses and drain any remaining water from the pump and system, especially in freezing conditions.
Maintenance
Regular maintenance extends the life of your pump and ensures reliable performance.
Routine Checks
- Before each use: Check pump oil level, inspect hoses and connections for leaks or damage.
- After each use: Flush the pump with clean water, especially if using chemicals.
- Periodically: Check for loose fasteners and tighten as necessary. Inspect valves and seals for wear.
Oil Changes
- The first oil change should be performed after the initial 50 hours of operation.
- Subsequent oil changes should occur every 3 months or 250 hours of operation, whichever comes first.
- Use only recommended pump oil (e.g., General Pump Series 100 oil or equivalent non-detergent pump oil).
- Refer to the pump's oil sight glass for correct fill level.
Seal and Valve Replacement
- Over time, seals and valves will wear and may require replacement.
- Symptoms of worn seals include water leaks from the pump manifold.
- Symptoms of worn valves include inconsistent pressure or reduced flow.
- Consult a qualified technician or the General Pump service manual for detailed instructions on replacing these components.
Troubleshooting
This section provides solutions to common operational issues. For problems not listed, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No pressure or low pressure |
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| Water leaks from pump manifold |
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| Pump making unusual noise |
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Specifications
Key technical specifications for the General Pump Triplex Plunger Pump TS1511.
| Feature | Value |
|---|---|
| Brand | General Pump |
| Model Number | TS1511 |
| Maximum Flow Rate | 4 Gallons Per Minute |
| Item Weight | 33 Pounds |
| Product Dimensions | 11 x 15 x 16 inches |
| Material | Brass |
| Color | Yellow |
| Manufacturer | General Pump |
| ASIN | B0014C4T6E |
Warranty and Support
General Pump products are manufactured to high standards. Specific warranty details are typically provided with your purchase documentation or can be found on the official General Pump website. Please retain your proof of purchase for warranty claims.
For technical assistance, replacement parts, or warranty inquiries, please contact General Pump customer service directly. You can usually find contact information on the manufacturer's website or in the packaging materials.
Note: Unauthorized repairs or modifications may void your warranty.





