Читать книгу The Gun Digest Book of Rimfire Rifles Assembly/Disassembly - J.B. Wood - Страница 11

Disassembly:

1. Remove the magazine, and cycle the action to cock the internal hammer. Set the safety in the on-safe position. Push out the large cross pin in the upper rear of the grip frame.

2. Tip the rear of the receiver upward, and pull back the charging handle to pull the bolt out of the rear of the receiver, and remove the bolt.

3. Move the charging handle downward, out of its track in the top of the receiver, and remove it toward the rear. Drifting out the vertical roll pin in the left lobe of the handle will allow removal of the lock lever and its spring.

4. The charging handle lug on top of the bolt is screw slotted and threaded into the bolt, and is also the retainer for the firing pin. Restrain the firing pin, and unscrew and remove the lug.

5. Release the firing pin and remove it toward the rear. The firing pin return spring may stay in its tunnel, and can be shaken out or extracted with a bent paper clip.

6. The extractor and its coil spring are retained on the right side of the bolt by a vertical roll pin, and when the pin is drifted out, the extractor and its spring are removed toward the right.

7. Remove the cap screw from the barrel and receiver hinge, and push out the hinge pin toward the opposite side. If the screw is tight, use a second screwdriver to stabilize the slotted head of the hinge pin while taking out the cap screw. Separate the barrel and receiver unit from the grip frame.

8. The bolt latch, located on the left side of the receiver at the lower edge, is retained by a cross pin. The pin is drifted out toward the left by inserting a drift punch through the ejection port, and the latch and its spring are removed downward.

9. The hinge pin for the ejection port cover is staked at both ends, and driving it out would damage the loops on the receiver. In normal takedown, the cover and its spring should be left in place. If removal is absolutely necessary, cut or file the spread edges at one end of the hinge pin, and push it out.

10. Two vertical Allen screws on the underside retain the front sight. Backing out these screws will allow the front sight to be moved forward, and the two sides of the forend can be taken

11. Remove the cross-screw on the left side of the ejector/hammer stop, and take off the part upward.

12. Turn the safety to the off-safe position, restrain the hammer, and pull the trigger. Ease the hammer down. Removal of the ejector/hammer stop will allow the hammer to go further forward than its normal position, partially relieving the tension of the hammer spring. Drift out the hammer pivot pin toward the right, and remove the hammer and hammer spring upward.

13. The hammer spring is easily detached from its studs on the side of the hammer.

14. Use an Allen wrench to remove the screw in the left frame wall, and take out the safety plunger and spring upward. Remove the safety toward the left.

15. Drift out the small pin at the rear of the grip frame, just above the handle, to release the expansion spring at the rear of the trigger.

16. Drift out the trigger cross pin toward the right.

17. Push the sear forward and hold it there while removing the trigger assembly upward. When the trigger is clear, allow the sear to snap over to the rear, partially relieving the tension of its spring. If necessary, drifting out the cross pin will separate the disconnector from the trigger.

18. Drifting out the sear cross pin toward the right will release the sear and its spring for removal upward. Caution: The sear spring is quite powerful. Restrain the sear and ease it out.

19. The magazine release button, located on the right side at the lower rear of the magazine housing, is screw-slotted and is threaded into the catch block on the opposite side. Unscrew the button, take it off toward the right, along with the spring, and remove the catch block

20. The grip handle is retained by a screw angled upward into the lower frame, accessible through the bottom of the handle. Remove the handle downward.

21. Remove the large and small Phillips screws at the rear of the buttstock, and take off the buttplate toward the rear. Slide the buttstock off toward the rear.

22. Unscrew the spring housing from the rear of the frame, and remove it.

23. Turn the upper buttplate screw back into the nylon bushing at the rear of the spring housing, and using the screw and a screwdriver push the bushing inward, then rotate it one quarter turn toward the right (clockwise, rear view). Caution: Grip the rear bushing firmly, and ease it out slowly, as this powerful spring is partially compressed, even when at rest.

24. Remove the rear bushing and recoil spring toward the rear.

25. Move the spring guide and follower to the rear, and rotate these parts until their lugs are aligned to clear the detent depressions at the rear of the tube. Remove the guide and follower toward the rear.