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Mattaphysics

8 day wall clock

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So I recently got this wall clock for next to nothing... Of course there's a reason. It's all sorts of gunked up but it's also missing the minutes hand. I'm planning on getting a new set to my liking but i cannot tell how the minute hand is supposed to stay on. Out doesn't look like a nut screws on the end and i don't see a hole for a taper pin. Is it possible it's that gunked up that the hole is covered by dirt? Not sure if the pictures clear anything up. I don't believe it's missing any pieces to my knowledge. Just an American movement that doesn't have a strike train. And a thought just occurred... Is it possible for me to add a strike train if I wish later?

 

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It’s a HAC movement Hamburg American Clock co and very popular in the collectors market. If it doesn’t have a strike or chime train then bestto leave it as is you can buy either for less than a conversion even if it was possible. Give it a good clean following a dismantle (loads on here about the procedure) Take lots of piccies, decide if it needs any rebushing and rebuild. A good starter movement.

spares should be readily available. 

Good luck on the cleaning and servicing.

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Oh and watch that open mainspring. It needs to be let down so at a minimum you will need a let down tool and a ring clamp to capture the spring. Trying to take it apart will give rise to problems with the movement and/or you if it lets go.

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 As Squiffy says mind the spring, wind the spring up tight and fit a clamp if no clamp fit a strong wire around the spring and twist to secure before loosening the plates.  The Min hand looks like a push/friction fit Check  all the pivots and bearings, by the look of it one or two may need bushing. all the best

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The minute hand should be pinned on. Have a good look at that square to see if the pin has broken off and is still in the hole. You will also need a hand collet to go over the minute hand and then the tow are held in place with a pin, use a steel pin not brass.

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A close up of the hands arbour would help, I am not sure it has a pin because I can see no collar on the minute shaft, therefore it would rub on the hour shaft. That said it seems a large hand to be a pressure fit, a close up should help work it out.

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First off thank you all for the quick responses and feedback. So looking at the minute pinion it doesn't look like you can tell at the end. It doesn't look like it takes a nut but i also can't see a clear sign at all. Here's dive pictures see if you can make heads or tails of it. Waiting for more cleaning fluid and alcohol for rinsing in the mean time. Is there a certain set of hands i need to get or just any for 5" dial will do?47516d93dc859f63069a9ce10ca1b248.jpg410c8a87460759e62c03f7e4c8374175.jpga661c4ca53833ff3fb49b4a556ffa55f.jpg

Sent from my LM-X210CM using Tapatalk

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You need to see what clearance you have, this must include the dial the hands and if it has a bezel holding a glass.  I’m sure you know nothing must be touching each other. Would it be possible to shorten the hour pipe and have good clearance from the dial.

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Looking at the clock dial it has no bezel therefore you can drill the end of the shaft and add a bit of steel. First file it to accomidate the minute hand and drill a hole for the taper pin, then solder it in place.

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Yes, good idea! I fit have those materials yet. I've never soldered before so perhaps i should practice on something else beforehand. I believe i could just cut some of the hour pipe off then drill a hole in the minute pinion?

Sent from my LM-X210CM using Tapatalk

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