How to service door locks - Schalge 707
That's the keyway of the 707
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Press the button with a flat screwdriver to pop and remove the secondary knob.
3
Remove the cap and screws to expose the core mechanism. Remove the cutter pins to remove the core mechanism's housing. (Note that once you clear the 4 protuding bracket, you will need to turn the housing a few degrees to fully remove it.)
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To remove the mecanism, you need to pry (gently!) the 4 brackets toward the exterior WHILE holding the core down. Be careful when removing it, the 2 springs contained within will want to jump out.
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One last step to remove the locking mechanism. Gently pull the locking mechanism out. Its the innermost ring in the center. Keep note of its position, you can't put it back in any other and it doesn't form a full circle.
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all parts exposed.
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The locking mechanism. Both sides.
xeo: you do whatever the lock wants