Nomenclature of Parts and Disassembly/Assembly Instructions With the Durs Egg Flintlock as Example

TOOLS: 1/4'' flat screwdriver • 6'' or 8'' common pliars • small hammer & center A vice is handy, but optional

SEQUENCE OF LOCK DISASSEMBLY 1. Remove main spring: a. Hammer must be all the way down. b. Compress any spring only the amount necessary. Overstress will collapse or break it. A pair of pliers is best. 2. Remove stirrup: Take note that it hangs in the "S" position with small end in the tumbler. Any other position can cause damage! ("Z" position for left hand models only.) 3. Remove sear spring. 4. Remove sear screw and sear. (When reinstalling, tighten screw only until contact is made between bridle and sear. Then back up 1/4 turn, so sear will operate freely.) 5. Remove top bridle screw and bridle. 6. To remove the tumbler from the plate: a: Take out hammer screw. b: Using the jaws of a vise, tum the tumbler side of the plate down, with the vise jaws only far enough apart to allow the tumbler to fit freely. Now, using a punch that will just fit the square hammer hole, tap the tumbler out of the hammer. Caution: Keep track of the fly during this operation! 7. Remove fly from tumbler. (Take note of the fly's position regarding its beveled edge. It must be reinstalled in the same way.) 8. Remove frizzen spring screw and spring. 9. Remove frizzen pivot screw and frizzen.

Lock Reassembly 1. Install frizzen and pivot screw. 2. Install frizzen spring and screw. 3. Install fly in tumbler. (Remember the position of the beveled edge.) 4. Install tumbler in plate. 5. Install bridle and top screw. 6. Install sear and sear spring. (Remember about screw tension.) 7. Install stirrup so that it "hangs" properly. 8. Install main spring. (Be sure tumbler is in relaxed position, as if hammer were all the way down.) 9. With pliers or properly adjusted vise grips, tum the hammer pole to the "half cock" position. Press the hammer onto the tumbler. Install the hammer screw. If the hammer is properly tight on the tumbler, it should not be necessary to do more than "finger tighten" the hammer screw. ** If you are not certain how to proceed, or if you have any questions, PLEASE don't hesitate to call.

ADJUSTING THE DOUBLE-SET TRIGGERS 1. Make sure that the main spring is "centered" in the main spring "notch". 2. With the triggers 'un-set", begin to tighten the main spring screw until contact is made against the rear set trigger. At this time, small movement of the screw will make large differences in the amount of set trigger power, SO GO SLOWLY (the main spring CAN be broken), testing the tension as you go by setting the triggers and firing them.* 3. Our triggers are pre-set at the shop with enough tension to trip a properly hardened and adjusted sear. Setting the trigger too strong can be damaging to the lock and/or triggers. When trigger and sear tensions are properly matched, your firing mechanisms will be safe and a joy to operate. * Remember: only move the screw with the triggers un-set.

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