Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your PEDROLLO JSWm/2CX self-priming water pump. Please read these instructions carefully before installation or use and retain them for future reference.

Figure 1: PEDROLLO JSWm/2CX Self-Priming Water Pump. This image shows the blue-colored pump unit with its motor housing and pump body, designed for efficient water transfer.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the pump:
- Ensure the pump is installed by a qualified professional.
- Disconnect power before performing any maintenance or service.
- Do not operate the pump with flammable or corrosive liquids.
- Protect the pump from freezing temperatures.
- Ensure proper grounding of the electrical connection.
Product Overview
The PEDROLLO JSWm/2CX is a self-priming centrifugal pump designed for reliable water transfer. It is suitable for pumping clean water and liquids that are not chemically aggressive to the pump's components. Its self-priming capability allows it to draw water even when air is present in the suction line, making it ideal for domestic water supply, small to medium autoclave tank systems, and garden irrigation.
Key Features:
- Self-priming design for efficient operation.
- Suitable for clean water and non-aggressive liquids.
- Robust construction with stainless steel components.
- Designed for continuous duty in domestic and garden applications.
Setup and Installation
Proper installation is crucial for the pump's performance and longevity. Consult a qualified technician for installation.
- Location: Install the pump in a dry, well-ventilated area, protected from direct sunlight and freezing temperatures. Ensure adequate space for maintenance.
- Mounting: Securely fasten the pump to a stable, level surface using appropriate bolts to minimize vibration.
- Piping:
- Use pipes of adequate diameter to minimize friction losses.
- Ensure all connections are airtight, especially on the suction side, to prevent air ingress.
- Install a foot valve with a strainer at the end of the suction pipe to prevent debris from entering the pump and to maintain prime.
- Install a gate valve on both the suction and discharge sides for isolation during maintenance.
- Electrical Connection:
- Connect the pump to a suitable power supply (220-230V, 50Hz) as indicated on the motor's data plate.
- Ensure the electrical circuit is protected by a residual current device (RCD) and an appropriately rated circuit breaker.
- Verify proper grounding according to local electrical codes.
- Priming: Before initial startup, completely fill the pump casing and the suction line with clean water through the priming port. This is essential for self-priming pumps to initiate operation.
Operating Instructions
- Initial Start-up: After installation and priming, open the discharge valve fully. Switch on the power supply. The pump should start and begin to draw water.
- Continuous Operation: Monitor the pump for unusual noises or vibrations. Ensure the pump is not running dry, as this can cause severe damage.
- Shut-down: To stop the pump, switch off the power supply. If the pump is part of an automatic system (e.g., with a pressure switch), it will start and stop automatically based on demand.
- Temperature Limits:
- Liquid temperature: up to +40 °C.
- Ambient temperature: -10 °C to +40 °C.
Maintenance
Regular maintenance ensures optimal performance and extends the pump's lifespan. Always disconnect power before maintenance.
- Regular Checks: Inspect the pump and piping for leaks, corrosion, or damage.
- Strainer Cleaning: Periodically clean the foot valve strainer to prevent blockages and maintain flow.
- Winterization: In areas prone to freezing, drain the pump completely and store it in a warm, dry place, or insulate it adequately to prevent damage from ice expansion.
- Motor Inspection: Ensure the motor's cooling fins are free from dust and debris to prevent overheating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power supply; Motor overload; Seized impeller. | Check power connection and circuit breaker; Reset thermal overload; Contact service technician. |
| Pump runs but no water is delivered | Pump not primed; Air leak in suction line; Foot valve clogged; Suction lift too high. | Re-prime the pump; Check all suction connections for leaks; Clean foot valve strainer; Reduce suction lift if possible. |
| Reduced flow or pressure | Partial blockage in piping; Worn impeller; Air in system. | Inspect and clear piping; Contact service technician for impeller replacement; Bleed air from system. |
| Excessive noise or vibration | Cavitation (air in water); Loose mounting; Bearing wear. | Check for air leaks and ensure proper priming; Tighten mounting bolts; Contact service technician. |
Specifications
| Parameter | Value |
|---|---|
| Model | JSWm/2CX |
| Brand | Pedrollo |
| Power (HP) | 1 HP |
| Voltage / Frequency | 220-230V / 50Hz |
| Max Flow Rate | 70 Liters per minute |
| Liquid Temperature Range | Up to +40 °C |
| Ambient Temperature Range | -10 °C to +40 °C |
| Material | Stainless Steel (pump body components) |
| ASIN | B07HMZ2DKQ |
| International Article Code | 08052230012515 |
Note: The specification for "Power: 220 Watts" found in some product listings may refer to a specific component or a different metric. The pump's performance is rated at 1 HP.
Warranty and Support
For warranty information, technical support, or spare parts, please contact your authorized Pedrollo dealer or visit the official Pedrollo website. Keep your purchase receipt as proof of purchase.
Manufacturer: PEDROLLO





