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Re: Hammer removal

Posted by Dick Hosmer on Saturday, 3 January 2015, at 2:31 p.m., in response to Hammer removal, posted by Ab Abercrombie on Saturday, 3 January 2015, at 12:50 p.m.

Well, the first point is that you do NOT want to attempt what would seem obvious!

The hammer is not pried away from the lock-plate, but rather the tumbler is driven out of the hammer. This requires removing the lock, which must be done with care to avoid taking out a chip. Make sure the hammer is at fully cocked (use vice-grips if need be), then loosen the lock-plate screws a little at a time, tapping on the heads to see if the plate will come free. Once it does, you will need to disassemble the lock. The cocked mainspring must be captured (M1879 tool, or locking pliers) and wiggled off. After dismounting sear and spring you can get to work. find a couple of small wood blocks and put them under the (face up) plate. Spray with WD40 and let sit, then drive the tumbler out of the hammer - the tumbler punch (made for this exact purpose) on the M1879 tool works best (you really need two of these) but anything that will not damage the tumbler threads will work. Take note of how the hammer is oriented on the tumbler. Reassemble in reverse order - the last piece to go on will be the hammer, which can be squeezed on in a large padded vise.

Takes longer to describe than to do!


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