How to repair this old door lock

lockrepair

An old knob on my bedroom door fails to retract to its normal position. I opened the lock in an attempt a repair it and discovered two loose springs.

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I suspect that the loose springs aided a third spring to lift the door knob back to its natural position. Because the two springs have become loose the third spring is not able to retract the knob on its own.

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I don't know how to reattach the loose springs. Does any know have experience with this type of mechanism?

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Best Answer

That spring is definitely broken. It sits in the square bracket and pushes against the lever above it.

Do you have another working handle that you can disassemble to compare to?

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