Turn the nut only a small amount each time.
How to adjust antique wall clock.
Adjusting the pendulum shorter will cause your clock to run faster while lengthening it causes it to run slower or simply put speedup slowdown in the pendulum regulation diagram below look for the rating nut at the base of the pendulum which is what raised or lowers the pendulum disk or bob.
Use the adjustment nut.
Turn it to the right to move the disk up and to the left to lower it.
This depends how handy you are and on whether or not loosening the hands on your clock is difficult.
Video tutorial showing how to adjust the beat of an antique grandfahter clock.
Move the hour hand backward and forward between the hour positions until the clock chimes the correct hour then adjust to the correct time.
The clock can be made to go faster or slower by means of the nut at the bottom of the pendulum.
Secure the screw into the wall angled upward at a 45 degree angle and hang the clock.
Open the side or back panel to the grandfather clock to reveal the chime mechanism and check the hammer adjustment only if you are sure the chime tone sounds incorrect.
Turning the front of the nut to the right speeds up the clock and turning it to the left slows it down in other words move the nut up to speed up or down to slow down.
Antique clocks wall clocks mantle clocks.
Choose the proper size wood screw typically a 8 10 or 12 to fit the hanger at the top back of the clock and long enough to go securely through the wall into a stud.
Simply count the chimes at a convenient time say 10 then stop the clock immediately.
Video tutorial showing how to adjust the beat of an antique grandfahter clock.