Daisy Powerline 717 747 777 Seal Reseal Repair O-Ring Kit Total 5 0-Rings Kit

Daisy Powerline 717, 747, 777 Reseal O-Ring Kit

Revive your Daisy Powerline 717, 747, or 777 air pistol with this comprehensive reseal kit! Designed specifically for these models, each kit contains all the essential O-rings needed for two complete valve and piston pump rebuilds. Made in the USA from durable Buna 70 Nitrile rubber, these black O-rings ensure a reliable seal.

Kit Contents (Total of 5 O-Rings):

• (1) Pump Seals (O-Ring)
• Bolt/Probe Seals (O-Ring)
• (1) Stem Seals (O-Ring)
• (1) Large Outer Valve Seals (O-Ring)
• (1) Inner Valve Seals (O-Ring)
• (1) Bolt/Probe Seals (O-Ring)

Features:

• Enough O-rings for full reseals, keeping your pistol ready for action.
• Does not include oil wiper (sold separately if needed).
• Always in stock—no delays!

Shipping:

• Ships via USPS First Class Mail without tracking, USA only.

Thank you for choosing this kit to bring your Daisy Powerline back to peak performance!

Instructions: How to Replace the Daisy Powerline 717, 747, 777 Seal Repair O-Ring Kit

Tools Needed:

• Small Phillips and flathead screwdrivers
• Tweezers or small needle-nose pliers
• Light lubricant (e.g., silicone oil or pellgun oil, non-petroleum-based)
• Clean cloth or rag
• Replacement O-ring kit for Daisy Powerline 717, 747, 777

Steps:

1. Safety First:
• Ensure the pistol is unloaded and not pressurized. Remove any CO2 cartridge or discharge any remaining air by dry-firing in a safe direction.
2. Disassemble the Pistol:
• Remove the grips by unscrewing the grip screws (usually Phillips head) on both sides of the handle.
• Locate and remove the screws holding the main body halves together (typically 2-4 screws, depending on the model). Gently separate the halves, keeping track of screw locations.
• Carefully lift out the valve assembly, pump piston, and bolt/probe assembly. Note their orientation for reassembly.
3. Remove Old O-Rings:
• Using tweezers or a small flathead screwdriver, carefully remove the old O-rings from the following locations:
• Pump Seal: On the piston head in the pump tube.
• Large Outer Valve Seal: Around the exterior of the valve body.
• Inner Valve Seal: Inside the valve assembly where the valve stem sits.
• Stem Seal: On the valve stem at the base of the valve.
• Bolt/Probe Seal: Around the bolt or probe that seals the breech.
• Clean each area with a cloth to remove debris or old lubricant.
4. Install New O-Rings:
• Lightly lubricate each new O-ring with silicone oil to ease installation and ensure a good seal.
• Place the new O-rings in their respective locations:
• Pump Seal: Stretch onto the piston head groove.
• Large Outer Valve Seal: Fit around the valve body exterior.
• Inner Valve Seal: Insert into the valve assembly interior.
• Stem Seal: Slide onto the valve stem base.
• Bolt/Probe Seal: Match the correct size (use the one that fits snugly) and install on the bolt/probe.
• Test fitment—O-rings should sit snugly without excessive stretching or looseness.
5. Reassemble the Pistol:
• Reinstall the valve assembly, pump piston, and bolt/probe into their original positions within one half of the pistol body.
• Carefully align and close the body halves, ensuring no wires or components are pinched.
• Secure the screws, starting with a light tighten and then fully tightening in a cross pattern.
• Reattach the grips and tighten the grip screws.
6. Test the Repair:
• Pump the pistol (for 717) or insert a CO2 cartridge (for 747/777) and test for leaks by listening for hissing or applying soapy water to joints (bubbles indicate leaks).
• Fire a few test shots to ensure proper operation and sealing.
7. Final Adjustments:
• If leaks persist, disassemble and check O-ring placement or try a different-sized bolt O-ring (if multiple sizes are provided). Re-lubricate if needed.

Tips:

• Work in a clean, well-lit area and keep small parts organized.
• Avoid over-tightening screws to prevent stripping threads.