First, there is seldom any reason to remove the hand from the trigger. I know I felt like I needed three hands to re-install it correctly, and even made a special tool to hold the spring in the correct position while installing the hand.

Second Using a needle oiler, I put 1 drop on every shaft bearing surface, (where the hammer and trigger and cylinder lock ride) and wipe my finger with one drop of oil across the surface where the rebound spring slide runs.

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H Richard
SWCA1967 SWHF244