ATMOS: replacing chain & pulley spring

instarclock

NAWCC Member
Mar 23, 2009
461
19
18
Galveston
Country
Region
Hello All

I bought a non-working Atmos 528 with the plan of using it to learn on so I could handle simple service on the couple of Atmos clocks I have.

I need to replace the chain and pulley spring. I picked up the parts from a salvage clock off the usual auction site. Since they came already attached to the pulley, I thought I could just swap the pulley out, but it has some sort of nut that I guess takes a special tool to remove — or it may be friction fit, I don’t know and I don’t want to mess it up trying to figure out. (Atmos parts are pricey.)

Anyway, my question is about the pin that holds the spring and chain in the pulley. I notice that it is shorter than the width of the pulley, with the extra space left in the bottom hole. I would think I should drive the pin from the top into the gap on the bottom far enough to change out the parts. Right? Any input will be appreciated and thanks in advance.

Rt

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TQ60

Registered User
Sep 15, 2016
204
5
18
Madera CA
Country
You can drive out the pin or if you cannot get something in there to drive it you could use a sharp wire cutter you can gently grab the pin next to chain and push it out.
 

instarclock

NAWCC Member
Mar 23, 2009
461
19
18
Galveston
Country
Region
You can drive out the pin or if you cannot get something in there to drive it you could use a sharp wire cutter you can gently grab the pin next to chain and push it out.
Thanks for the tip. I plan to tackle this tomorrow.
Rt
 

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