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Disassembly
I. Remove the magazine. Draw the bolt fully rearward and visually inspect the chamber to be certain there is no cartridge in it and then release the bolt. The safety must be in the "off' (F) position. Point the pistol in a safe direction and pull the trigger, to be sure hammer has fallen. Hammer must be uncocked before pistol can be disassembled.
2. Insert a blunt, pointed instrument in the oval recess of the mainspring housing (at the back of the grip) and swing the housing latch open like the blade of a pocket knife. (Some users find that a paper clip, looped over the latch, is an ideal 'instrument' for this phase of disassembly.)
3. Swing the entire housing outward on its pivot and pull downward, removing mainspring housing and bolt stop pin. With new pistols it may be necessary to lightly tap (with a plastic hammer) on the top portion of the bolt stop pin-which protrudes above the receiver -- while pulling downward on the mainspring housing.
4. Point muzzle up. The bolt will drop out of the receiver or it can readily be removed.
5. With the mainspring housing, bolt stop pin (as an assembly), and bolt removed, a forward blow (with a plastic hammer) on the rear of the receiver will disengage the barrel-receiver , assembly from the grip fi'ame. No attempt should be made to remove rivets or staked pins. Further disassembly should be undertaken only by the factory.
Reassembly
1. Be certain pistol is free of cartridges! Safety must be in "F" position.
2, Place hammer in horizontal(cocked) position, keep finger off trigger.
3. Place barrel receiver on top of frame so that the square lug engages the square front recess on the underside of the receiver.(see Fig. A) Push barrel rearward until it stops, with the rear of the receiver slightly over-hanging the rear end of the grip frame(see Fig. B). If the alignment can't be achieved by hand pressure, strike the front of the barrel with a plastic or wood mallet, being careful not to dammage the muzzle.
4. Point muzzle up and pull trigger. Gravity will cause the hammer to return to its cocked position if it became dislodged in previous step.(see Fig. C)
5. Slide bolt (recoil spring upward) fully into receiver. Note: before sliding bolt into receiver, BE CERTAIN that the firing pin stop (part # A03500, a small pin) is in the bolt. (see Fig. D)
6. Point the muzzle toward the ground. Angle the rear of the pistol forward and slightly downward, and pull trigger. Gravity will now cause the hammer to fall to its uncocked position. You can see the hammer fall into this position through the slot in the rear of the grip frame. Release trigger. (see Fig. E)
7. Hold the pistol and the mainspring housing bolt stop pin assembly in a horizontap position and press bolt stop pin upward through the holes in the receiver and bolt until the tip of the pin protrudes beyond the top of the receiver.(see Fig. F)
8. Make sure the hammer strut is free to move and not "trapped" behind the crosspin inside the grip frame. If it is, gently move it over the crosspin with a small screwdriver blade.
9. Hold the bolt closed with your thumb, point the muzzle up. Swing the mainspring housing into the frame untill almost shut (see Fig. G). Spring pressure should be felt just before the housing is fully shut (see Fig. H), if internal parts are correctly alligned.
10.The housing latch can now be snapped shut. To determine if the reassembly is correct, pull bolt back. It should open fully. If not, open latch, remove mainspring housing and repeat steps 6-9.
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