Introduction
The Little Giant Select Series LG-SWJ50 1/2 HP cast iron shallow well jet pump is designed for supplying fresh water to rural homes, farms, and cottages. This pump is suitable for suction lifts down to 25 feet and delivers up to 12.6 GPM at 30 PSI with a 5-foot lift. It includes a 30/50 pressure switch and features dual voltage capability (115/230 Volts).
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your LG-SWJ50 pump. Please read all instructions carefully before use.
Safety Information
WARNING: Improper installation or use can result in electrical shock, fire, personal injury, or property damage. Always follow local electrical and plumbing codes.
- Disconnect power before servicing the pump.
- Ensure the voltage switch on the pump matches the power source to prevent severe damage.
- Do not operate the pump dry. Always ensure water is flowing through the pump when it is on.
- This pump is designed for fresh water only. Do not use with flammable or corrosive liquids.
- Keep children and unauthorized personnel away from the pump during operation.
Components Checklist
Verify that all components are present before beginning installation:
- Little Giant Select Series LG-SWJ50 Shallow Well Jet Pump
- 30/50 Pressure Switch (pre-installed)
- Owner's Manual (this document)
Setup
1. Unboxing and Inspection
Carefully remove the pump from its packaging. Inspect the pump for any signs of shipping damage. If damage is found, do not proceed with installation and contact your supplier.
2. Voltage Selection
The LG-SWJ50 pump is factory-set for 115 Volts. If your power source is 230 Volts, you must switch the pump's voltage setting. Refer to the detailed instructions in the owner's manual for the correct procedure to switch from 115V to 230V operation. Failure to match the pump's voltage setting to the power source will cause severe damage to the pump.
3. Plumbing Connections
Connect the pump to your well and discharge lines. The pump features a 1-1/4-inch Female NPT threaded intake and a 1-inch Female NPT threaded discharge. Ensure all connections are watertight using appropriate sealants and fittings.
4. Priming the Pump
Before initial operation, the pump must be properly primed. Remove the priming plug and fill the pump casing with water until it overflows. Replace the priming plug securely. This step is crucial for self-priming after the initial setup.
Operating Instructions
Once installed and primed, the LG-SWJ50 pump operates automatically via the integrated 30/50 pressure switch. When the system pressure drops below 30 PSI, the pump will activate. When the pressure reaches 50 PSI, the pump will shut off.
- Ensure the power supply is connected and the voltage setting is correct.
- Open a faucet or valve in your water system to allow water to flow. The pump should start.
- Close the faucet/valve. The pump will build pressure and shut off automatically.
- Monitor for leaks and proper pressure operation during the first few cycles.
Maintenance
Regular maintenance ensures optimal performance and longevity of your pump.
- Winterization: In freezing climates, drain the pump completely to prevent damage from ice expansion. Remove the drain plug and priming plug to allow all water to escape. Store the pump in a warm, dry place if possible.
- Check for Leaks: Periodically inspect all plumbing connections for leaks. Tighten fittings as necessary.
- Clean Intake Screen: If the pump's performance decreases, check the intake for debris and clean if necessary.
- Motor Inspection: Ensure the motor is free from dirt and obstructions for proper cooling.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start | No power; incorrect voltage setting; motor overload; faulty switch | Check power supply; verify voltage switch setting; reset thermal overload; inspect pressure switch. |
| Pump runs but no water | Pump not primed; air leak in suction line; low water level in well; clogged intake | Re-prime pump; check suction line for leaks; verify well water level; clean intake screen. |
| Low pressure/flow | Partially clogged lines; worn impeller; air in system; pressure switch setting | Inspect and clear lines; contact service for impeller replacement; bleed air from system; adjust pressure switch. |
| Pump cycles too frequently | Water leak in system; faulty pressure switch; undersized pressure tank (if applicable) | Check for leaks; replace pressure switch; consider adding or replacing pressure tank. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 97080504 |
| Horsepower (HP) | 1/2 HP |
| Voltage | 115/230 Volts (Dual Voltage) |
| Amperage (115V) | 8.4 Amps |
| Amperage (230V) | 4.2 Amps |
| Maximum Flow Rate | 12.6 Gallons Per Minute (at 30 PSI, 5-ft. lift) |
| Maximum Lifting Height | 25 Feet |
| Maximum Pressure | 64 PSI |
| Suction Connection | 1-1/4-inch Female NPT |
| Discharge Connection | 1-inch Female NPT |
| Material | Cast Iron (housing), Glass-filled polyester (impeller/volute) |
| Item Weight | 21.7 Pounds |
| Product Dimensions (L x W x H) | 13.86" x 8.54" x 8.4" |
| Included Components | Pump with 30/50 pressure switch, Installation manual |
| Certifications | NSF-372 certified for fresh drinking water |
Warranty and Support
Little Giant products are backed by a commitment to quality and customer satisfaction. For warranty information and support, please refer to the following:
- 30 Day Return Policy: For items purchased within 30 days, please refer to Amazon's return policy.
- After 30 Days: If Amazon.com is the seller, your product is covered by the terms outlined in this manual. For troubleshooting or installation assistance, please contact Little Giant customer support. If another seller is indicated, please contact them directly.
For more information about Little Giant and their product range, you can visit their official store: Little Giant Store on Amazon.
