Clock Suspension Spring Installation
How to Install Suspension Springs
Clock Suspension Spring Installation
The following is a description of a clock suspension spring installation. There are two ways that the clock suspension spring can be held into the suspension post. One way is to use a thumb, or set screw. When ready, just remove the screw and the suspension spring will fall out of its slot. Another way is to use a tapered pin. This is a pin that is skinny on one end and wide on the other. 
Push the skinny end through the pre-drilled hole in the suspension post. Then push it through the hole in the suspension spring all the way to the other side of the post. Similarly, remove it using needle nose pliers. Twist and yank it out from the wide side. Please note, some set screws may be too wide for the suspension top hole. In this case, use a tapered pin to secure the suspension spring instead of the screw. 
Push the skinny end through the pre-drilled hole in the suspension post. Then push it through the hole in the suspension spring all the way to the other side of the post. Similarly, remove it using needle nose pliers. Twist and yank it out from the wide side. Please note, some set screws may be too wide for the suspension top hole. In this case, use a tapered pin to secure the suspension spring instead of the screw. Connect the leader
Hook the leader on the suspension spring prior to install. The intent is to have the suspension spring spring hooked and the leader engaged with the crutch. At this point the suspension spring can be lifted into position as inserting the set screw. Note that the suspension spring is lifted with the leader hanging on it while the leader is engaged with the crutch as one unit.
What is next?
Hook the leader on the suspension spring prior to install. The intent is to have the suspension spring spring hooked and the leader engaged with the crutch. At this point the suspension spring can be lifted into position as inserting the set screw. Note that the suspension spring is lifted with the leader hanging on it while the leader is engaged with the crutch as one unit. 
The content of this website is copyright by Clockworks and written by James Stoudenmire in year 2022
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Hello – I am hoping you can help me. I am looking for a pendulum spring for my German made grandmother clock. It is plain steel with a hole at one end and a double through pin on the other. I hope this is enough information for you. If you need I can send you a photograph. Thank you.
Please order suspension spring A2 if you have a pendulum bob less then 8.5 inches wide, this is the round disk at the bottom of the pendulum
Please order suspension spring A3 if you have a pendulum bob is 8.5 inches wide or larger, from this link
https://www.clockworks.com/product/mechanical-clock-suspension-spring
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I have a Kundo electromagnetic battery operated dome mantel clock and the suspension spring is broken. I have only two pieces left any idea of what I would need or could get from you?
Do not have the parts for those unfortunately
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I just purchased 2 A-2 suspension springs from you for my grandmother clock, It seems the pendulum leader will not fit on to the spring. Any suggestions on how to get it on.
Hook the suspension on the leader, then bring both up and hook the suspension on its post
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a colonial grandfather clock and I will attach pictures of the model number and other identifiers and I need to know what suspension spring I need to purchase. Mine is missing one chain and the weights and the suspension spring. I need to replace all of the parts at this point and I am not sure which ones I need to purchase. The number on the plate is (Colonial of Zeeland 7720618 Registered serial number) and the name on the faceplate of the movement is ( Colonial).
What are the numbers off of the back plate of the clock movement itself? If it is hard to get to, usually you can stick a cell phone up behind the movement and get a picture of the numbers. Or through the side access panel if there is one.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Who do I text pictures to – of needed suspension
Spring ?
Right in this interface
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Can the Hermle suspension spring be changed without removing the movement?
Yes absolutely
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
So thats what its called, nice.