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Hi! My name is XXXXX XXXXX it is my pleasure to assist you. First, The next time the clock chimes the hour move just the HOUR HAND ONLY to match the number of chimes. Next move the minute hand only in a clockwise manor stopping to let the clock chime until you reach the desired time. This should cure your problem if not you'll have to remove the hands after it chimes out of sync to match the chimes then replace the hands back onto the shaft.
No you don't have to stop the pendulum. The next time the clock chimes the hour for example at 11 am it chimed twice move just the HOUR HAND ONLY to the 2 then move the minute hand only stopping to let the clock chime then just go through the sequence until you reach the desired time.