SB13 hands not moving
SP13 clock, the gears are all running well - been ticking away for 4 days now.
The problem is that the hands aren't moving - and I believe that gear 4a is not driving gear 4b through the friction spring.
I have checked 4b is locked properly to the arbour with the M3 screw, so it seems it is 4a freely rotating and not driving the arbour (and 4b) through the spring.
Any tips for debugging this specific issue? Thanks!
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Thanks for the tips, Steve - it's working now. I took the 4n assembly apart and discovered a small burr on the arbour I had missed, which was fouling in the hole on the back plate. Just the slightest of fouls at one point in the rotation!