1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Tsurumi Pump EPT3-100V Vanguard Powered Trash Pump. Please read this manual thoroughly before operating the pump to ensure proper usage and to prevent injury or damage.
The EPT3-100V is a robust, engine-driven trash pump designed for demanding applications involving water with debris. It features a powerful Vanguard gas engine and durable construction for reliable performance.
2. Safety Information
Always prioritize safety. Failure to follow these instructions can result in serious injury or death.
- Read and understand all instructions and warnings in this manual and on the pump itself before operation.
- Ensure the pump is placed on a stable, level surface away from flammable materials.
- Operate the pump in a well-ventilated area to prevent carbon monoxide poisoning. Never operate indoors.
- Keep hands, feet, and clothing away from moving parts.
- Do not refuel the engine while it is running or hot. Allow it to cool before adding fuel.
- Wear appropriate personal protective equipment (PPE), including eye protection, gloves, and hearing protection.
- Never pump flammable liquids or operate the pump in explosive atmospheres.
- Disconnect the spark plug wire before performing any maintenance or inspection.
- Keep children and pets away from the operating area.
3. Product Overview
The Tsurumi EPT3-100V is an engine-driven trash pump designed for heavy-duty dewatering applications. Its robust construction and powerful engine make it suitable for handling water containing abrasive solids and debris.
Key Features
- Vanguard Powered: Driven by an 11 HP Vanguard gas engine with a low oil sensor for reliable performance.
- Solid Handling: Capable of pumping solids up to 1.25 inches.
- High Chrome Impeller: Built to handle fluid containing abrasive solids.
- Durable Construction: Features a Cast Iron volute casing and a Stainless-Steel wear plate for extended life.
- Protective Frame: Durable Rolled-Steel frame provides protection, ease of handling, and safe operation.

Figure 1: Tsurumi Pump EPT3-100V Vanguard Powered Trash Pump. This image shows the complete pump unit with its protective rolled-steel frame and engine.
Typical Applications
The EPT3-100V is suitable for various dewatering tasks where water may contain significant amounts of solids:
- Ditch Dewatering: Removing water from ditches and trenches.
- Pond Cleanouts: Draining and cleaning ponds or small bodies of water.
- Flood Remediation: Pumping out floodwaters from affected areas.

Figure 2: Visual examples of typical applications for the Tsurumi EPT3-100V trash pump, including ditch dewatering, pond cleanouts, and flood remediation.
4. Setup and Installation
- Unpacking: Carefully remove the pump from its packaging. Inspect for any shipping damage.
- Placement: Position the pump on a firm, level surface. Ensure adequate ventilation around the engine. Keep the pump as close to the water source as possible to minimize suction lift.
- Fuel and Oil:
- Fill the engine crankcase with the recommended engine oil (refer to the engine manufacturer's manual for type and capacity).
- Fill the fuel tank with fresh, unleaded gasoline. Do not overfill.
- Hose Connections:
- Connect a reinforced suction hose to the pump's suction inlet. Ensure all connections are airtight to prevent air leaks, which can affect priming and performance.
- Attach a discharge hose to the pump's discharge outlet. Secure all hose connections with appropriate clamps.
- Priming the Pump:
- Remove the priming cap located on top of the pump casing.
- Fill the pump casing completely with clean water until it overflows.
- Replace the priming cap securely. The pump must be primed before each use.
5. Operating Instructions
Starting the Engine
- Ensure the pump is properly primed (see Section 4).
- Open the fuel valve.
- Move the choke lever to the "CHOKE" position (if the engine is cold).
- Move the throttle lever to the "FAST" position.
- Turn the engine switch to the "ON" position.
- Pull the recoil starter handle slowly until resistance is felt, then pull sharply. Repeat until the engine starts.
- Once the engine starts, gradually move the choke lever to the "RUN" position as the engine warms up.
- Allow the engine to warm up for a few minutes before engaging the pump at full throttle.
Stopping the Engine
- Reduce the engine speed to idle by moving the throttle lever to the "SLOW" position.
- Allow the engine to cool down for a few minutes.
- Turn the engine switch to the "OFF" position.
- Close the fuel valve.
6. Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your Tsurumi pump.
Daily/Before Each Use
- Check engine oil level and add if necessary.
- Inspect air filter for dirt and debris; clean or replace if needed.
- Check fuel level.
- Inspect hoses and connections for leaks or damage.
- Ensure the pump casing is primed before starting.
Every 25 Hours or Annually
- Change engine oil.
- Clean or replace the air filter.
- Inspect spark plug; clean or replace as needed.
- Check and clean the impeller and volute casing for debris buildup. To do this, remove the front cover of the pump.
Storage
- Drain all fuel from the tank and carburetor if storing for more than 30 days, or use a fuel stabilizer.
- Drain all water from the pump casing and hoses to prevent freezing and corrosion.
- Clean the exterior of the pump.
- Store in a clean, dry area.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine will not start | No fuel; Engine switch OFF; Choke not set; Low oil level; Fouled spark plug | Add fuel; Turn switch ON; Adjust choke; Add oil; Clean/replace spark plug |
| Pump does not prime | Pump not filled with water; Air leak in suction line; Suction lift too high; Clogged suction strainer | Fill pump casing; Check/tighten suction hose connections; Reduce suction lift; Clean strainer |
| Low flow or no discharge | Partial prime; Clogged impeller/volute; Kinked hose; Worn impeller/seal | Re-prime pump; Clean impeller/volute; Straighten hose; Inspect/replace worn parts |
| Excessive vibration | Unbalanced impeller (debris); Loose mounting bolts | Clean impeller; Tighten all mounting bolts |
If problems persist after attempting these solutions, please contact Tsurumi Pump customer support.
8. Specifications

Figure 3: Key product specifications for the Tsurumi Pump EPT3-100V.
| Feature | Detail |
|---|---|
| Model Number | EPT3-100V |
| Brand | Tsurumi Pump |
| Engine | Vanguard 400 (14 HP) |
| Discharge Size | 4 inches |
| Maximum Flow Rate | 476 GPM (28,560 GPH) |
| Material | Cast Iron, Stainless Steel (Impeller: High Chrome) |
| Power Source | Gas Powered |
| Weight | 163 lbs |
| Tank Size | 1.61 Gallons |
| UPC | 894787000953 |
9. Warranty and Support
Tsurumi products are backed by a 2-YEAR WARRANTY. The EPT3-100V is UL & CSA certified, ensuring compliance with safety and quality standards.
For any questions, concerns, technical assistance, or warranty claims, please contact Tsurumi (America), Inc. customer support. You can find more information and contact details on the official Tsurumi Pump website or through your authorized dealer.
Visit the Tsurumi Pump Store for additional product information and support resources.

