Here’s photo’s of when I repaired Mal’s 777. If it’s just the adjustment, it’s a quick fix: Here’s the a seal and valve repair procedure from RicDoug on the Yellow Forum: If any of the seals are not servicable a set of 3 seals from Daisy is available at a minimal cost, part# 717-5 (“O”ring seal group). Shown in the proper location with the bolt closed. The safety lever must go in front of the bolt or your gun will not fire after you put it back together. There is a safety for the bolt which prevents the gun from firing without the bolt closed. There are some things to know on reassembly. I would also take the time to clean out the pump tube and anything else that looks gritty. …and the inside of the valve body with q-tips and again use a light coat of oil. Now remove the valve assembly (above 6) with a wrench and clean the valve stem (circled)… Now inspect the seal in front of the valve body(5) Clean the seal and the pocket it rides in again and re-oil. I would gently remove it and wipe it clean and clean out the pocket it sits in with q-tips and then apply some airgun suitable oil to the seal and the sponge wiper behind it. Now slide the pump arm out with the attached pump head. Now remove this screw,(circled above) pull the front sight off from the top, then remove the cylinder that goes through the pump arm and the two spacers. There is nothing holding them in but friction. Remove the right side cover and close the cocking arm which usually pops the barrel and valve out the back. Circled is where the cocking arm meets the valve. Remove the left side cover and pull the grip back and away. Make sure that the safety is to the right, or on safe, or it will go flying when you open up the pistol!(4).Opening the bolt will make things easier too. To start off, lay the pistol on its right side and open the cocking lever. for the use of his details and photos for stripping and inspection of Daisy 7×7 seals.
Approximate range of adjustment 1-3 pounds. Trigger weight: Adjusting screw is located in front of grip frame directly below trigger guard. Sight AdjustmentsĮlevation: Clockwise down. The 777 was discontinued a few years ago, having Lothar Walther barrel, wooden grips and adjustable metal sights (717 and 747 are adjustable but plastic). All three models are identical as far as the action is concerned.
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