If no pendulum is attached your mantle clock may be regulated by a balance wheel which is operated by a spring.
How to repair my wall clock.
Clock repair and troubleshooting make sure the battery is new and facing the right direction.
Small hour hand first then the minute hand.
Push the hour hand back and forth gently to release it.
Inspect the battery compartment for corrosion.
Alternatively pry the batteries out by.
Unless you oven dry the clock after this the springs will rust and your clock is in very bad shape with an expensive repair bill.
While holding the black box in place on the back of the clock put the new washer on the front then thread on the new nut on top of the washer securing tightly with a pliers or socket.
Most of the quartz clock starts losing its time because of the end of the power of the battery.
If you just put it in a bucket of hot soapy water then water gets into the spring barrells.
Put on gloves and pull the batteries out with tweezers or tongs.
You probably dont want to attempt to get the plates apart so heres a cheat.
The first and easiest problem to fix is restoring the clock s battery power which is done by removing the battery from the back of the clock and replacing it with a fresh one.
Check to see if the spring is in working order.
In this video i repair a disney kiddies winnie the pooh wall clock.
In this case you should replace the battery with a new one.
Open the clock face and inspect the clock hands.
Open the back door of the clock carefully with a small screwdriver.
Again the batteries might get expired.
This video is about repairing a battery operated quartz wall clock that was dropped.
How to fix battery operated clocks.
Finally put those hands on which i totally spray painted black.
Simply wipe off the dust with a piece of cloth or you can also try blowing them out.
If the pendulum is not swinging be sure the pendulum is hung from front to back and that the clock is.
Make sure the clock hands are properly seated on the clock shaft and not catching on each other.
If the clock hands are touching that may be the reason the clock stopped moving.