How to Maintain an NRS Super 2 HP Pump

The NRS Super 2 HP Pump is a handy, user-friendly option for inflating all types of watercraft, from rafts to inflatable kayaks to stand-up paddleboards. On water raft top-ups or inflating your packraft from scratch, the Super 2 HP Pump uses a double-chamber design for optimal power with minimal effort, and is easy to maintain. With a few simple steps, you’ll be able to troubleshoot and address common issues with your pump and keep it functioning well for years to come.

Troubleshooting O-Ring and Barrel Issues

The Super 2 HP Pump has two internal air chambers. The larger Air Max chamber uses a rubber O-ring around the base of the piston to create an air-tight seal, allowing the pump to move air effectively. The barrel is lubricated to help keep the pump action smooth.

If the pump isn’t pushing air correctly, it’s usually caused by either a dislodged O-ring or the inner barrel is dry and needs to be lubricated. Thankfully, these issues are very easy to troubleshoot.

If the O-ring sustains damage, or becomes dislodged, the pump will no longer move air effectively. If the inside of the barrel is dry, it can create excess friction and adversely affect the pump action.

To inspect the O-ring and inner barrel, disassemble the pump and follow these steps.

1. Using a Phillips-head screwdriver, remove the two screws on either side of the top cap.

   

2. Set the pump on the floor, pull up on the handle until the piston separates from the barrel.
   • Tip: use your feet to secure the main body of the pump on the ground as you pull up on the handle.
3. Inspect the bottom of the piston. You should see a groove where the O-ring is seated.

   

4. Inspect the O-ring, checking for signs of damage or debris. Clean any dirt or debris with a clean, dry cloth.
5. If the O-ring is undamaged, reposition it within the groove at the bottom of the piston.
   • If the O-ring is dry, apply a small amount of white lithium grease.
   • If the O-ring is damaged or torn, contact our customer experience team to request a replacement.
6. Inspect the inner wall of the barrel. Clean any dirt or debris with a clean, dry cloth. If the inner wall is dry, apply a small amount of white lithium grease to aid operation.
7. Once the O-ring is back in place, reassemble the pump. Start by positioning the bottom of the piston above the opening of the pump barrel, then push the piston down and into the barrel.

   

8. Once the piston is fully inserted, replace the two screws on either side of the top cap.
9. Once the pump has been reassembled, ensure the lubricant is dispersed evenly by giving the pump a few complete strokes.
10. Your pump is now good to go!

Tip: periodically check the inner barrel of the pump to ensure it’s clean and well lubricated. For average use, once or twice per year is sufficient. For heavy use, consider inspecting the pump monthly.

Other Potential Issues

Sometimes things break and can’t be fixed at home. Fortunately, NRS stocks a variety of replacement parts for the Super 2 Pump including:

• Inflation hose
• Inflation hose fitting
• Piston O-ring
• Handle
• Pressure gauge
• Valve adapter set

Please contact our customer experience team to request replacements for any of these parts.