If it s simply a matter of tightening the hands push the hour hand against the clock shaft first.
How to remove hands on over size wall clock.
If you see one your clock hands are held by a pin and collet.
Take an hour hand and gently push on machin s hour niddle step 2.
Take a minute hand and gently push on machin s minute ni.
How to fix clock hands step 1.
If there is a second hand on your clock you may need to use your pliers to remove a small nut and cap that holds the hand in place.
Take a pair of needle nose pliers and pull out the pin.
Lift off the minute hand then the collet.
The pin should be tapered so pull from the fatter end.
Hold the second hand and tighten the tiny nut at the end of the shaft with needle nose pliers.
Use a magnifying glass to see if a metal pin is passing through the arbor parallel to the clock face.