Brushing the mechanical works with a soft brush such as a paint brush should dislodge any dust or dirt.
How to fix a wall clock pendulum.
Open the battery compartment with your fingertips and nails or use a screwdriver to open it.
Dried oil and debris can clog and stop the clock mechanism.
Dabbing a few drops of clean oil on the area then restarting the pendulum should get the clock running again.
Check to see if the spring is in working order.
Lengthen the pendulum by turning the screw mechanism to the left 1 2 turn.
If your pendulum clock has lost its best beat you can get it back in time with a bit of beat education and simple tools.
Too low causes the clock to run slow.
Check your clock with a bubble level and find where it needs to be shimmed.
A pendulum too high causes the clock to run fast.
Wind the spring as far as it will go.
If no pendulum is attached your mantle clock may be regulated by a balance wheel which is operated by a spring.
Bend the clock verge back into position with a set of needle nose pliers instead of shimming your out of beat clock.
Inspect the battery compartment for corrosion you will likely see a bloom of blue and white or green and white mold around the ends of a battery.
The verge is the wire from which the pendulum hangs.
Understanding the mechanics of your cherished time piece will help you fix problems that can occur without having to drag the clock to a repair specialist.
If dried oil is visible gently brush it away.
Step 2 put on gloves and pull the batteries out with tweezers or tongs.