Johnson Pump Ultima Combo Bilge Pump 750GPH, 12V

Introduction

This manual provides essential instructions for the safe and efficient installation, operation, and maintenance of your Johnson Pump Ultima Combo Bilge Pump 750GPH, 12V. Please read this manual thoroughly before use and retain it for future reference. Proper installation and maintenance are crucial for the longevity and reliable performance of your bilge pump.

Product Overview

The Johnson Pump Ultima Combo Bilge Pump is a compact and powerful 12-volt bilge pump designed for marine applications. It features an integrated automatic Ultima magnetic proximity float switch for reliable, hands-free water removal from your vessel's bilge. Its robust construction ensures durability in harsh marine environments.

Image of the Johnson Pump Ultima Combo Bilge Pump, a compact unit designed for marine applications. This image displays the pump's main body, integrated float switch, and outlet port.

Specifications

Safety Information

Always observe the following safety precautions to prevent personal injury or damage to your vessel:

• Disconnect Power: Always disconnect the battery power before installing, inspecting, or servicing the pump.
• Proper Wiring: Use appropriate marine-grade wiring and connectors. Ensure all electrical connections are secure and waterproof.
• Fusing: Install an appropriately sized fuse in the positive power lead to protect the pump and electrical system.
• Ventilation: Ensure adequate ventilation in the bilge area.
• Flammable Liquids: This pump is designed for water removal only. Do not use it to pump flammable liquids, fuels, or chemicals.
• Secure Mounting: Ensure the pump is securely mounted to prevent movement during vessel operation.
• California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Installation

1. Mounting Location: Select the lowest point in the bilge where water collects. Ensure the pump is mounted securely to a flat surface using appropriate fasteners. The pump should be easily accessible for inspection and maintenance.
2. Wiring Connections:
   • Connect the brown wire (automatic lead) directly to a fused 12V positive (+) battery source. This connection ensures the pump can operate automatically even when the vessel's main power switch is off.
   • Connect the brown/yellow wire (manual lead) to a fused 12V positive (+) source via a manual switch located at the helm. This allows for manual activation of the pump.
   • Connect the black wire to a negative (-) ground source.
   • Use marine-grade, heat-shrink butt connectors or similar waterproof connections for all wiring. Ensure all connections are sealed to prevent corrosion.
3. Hose Connection: Attach a suitable discharge hose to the pump's outlet port. Secure the hose with a marine-grade hose clamp. Route the hose to a suitable overboard discharge point, ensuring there are no kinks, sharp bends, or sags that could trap water and create an airlock. Install a siphon break if the discharge outlet is below the waterline.
4. Testing: After installation, briefly test the pump's operation. Fill the bilge with water until the float switch activates the pump. Verify that water is discharged overboard. To test the automatic function without water, place your fingers on the two contact points located on the side of the Ultima switch. This simulates water presence and should activate the pump. Remove your fingers to turn it off.

Operation

• Automatic Mode: When wired correctly, the integrated Ultima magnetic proximity float switch will automatically activate the pump when water in the bilge reaches a predetermined level. The pump will continue to run until the water level drops below the switch's turn-off point.
• Manual Mode: If a manual switch is installed and wired, you can activate the pump at any time, regardless of the water level in the bilge. This is useful for clearing small amounts of water or for testing.
• Monitoring: Periodically check the bilge area and the pump's operation, especially during and after rain, or when the vessel is unattended.

Maintenance

Regular maintenance ensures optimal performance and extends the life of your bilge pump:

• Clean Bilge Area: Keep the bilge area clean and free of debris such as oil, fuel, dirt, and other foreign objects that can clog the pump intake or damage the impeller.
• Inspect Pump and Connections: Regularly inspect the pump body, wiring, and hose connections for any signs of wear, corrosion, cracks, or leaks. Replace damaged components immediately.
• Float Switch Check: Ensure the Ultima float switch moves freely and is not obstructed by debris. Test its function periodically by manually raising it or by simulating water presence as described in the Installation section.
• Impeller/Cartridge Inspection: The pump features an interchangeable cartridge system. Periodically inspect the impeller for damage or wear. Refer to Johnson Pump's specific guidelines for cartridge replacement if necessary.

Troubleshooting

• Pump Does Not Run:
  • Check the power supply to the pump. Ensure the battery is charged and connections are secure.
  • Inspect the inline fuse. Replace if blown.
  • Verify all wiring connections are correct and free of corrosion.
  • Check the float switch for obstruction or malfunction. Ensure it moves freely.
  • Inspect the pump intake for clogs or debris.
• Pump Runs Continuously:
  • Check the float switch for sticking in the 'on' position or for debris preventing it from dropping.
  • Ensure there is no airlock in the discharge hose.
  • Verify that water is not re-entering the bilge through a faulty discharge hose or siphon.
• Pump Runs But Moves No Water:
  • Check for a severely clogged intake screen or discharge hose.
  • Inspect the impeller for damage or wear.
  • Ensure the water level in the bilge is sufficient for the pump to prime and operate effectively.

Warranty and Support

This Johnson Pump product is covered by a manufacturer's warranty. For specific warranty details, terms, and conditions, please refer to the official Johnson Pump website or the documentation included with your purchase. For technical support, troubleshooting assistance beyond this manual, or to inquire about replacement parts, please contact Johnson Pump customer service directly. Retain your proof of purchase for all warranty claims.