I have been refurbishing a Mikron WF1 and have an issue with the main traversing drive chain.
The chain looks like it's the wrong pitch, it works but makes a clicking sound as it feeds onto the lower sprocket. The tighter the chain the more pronounced the click, so there is definitely a pitch issue. The length is correct as the adjustment is in the center of it's range.
It would appear to be a 5/8" pitch chain and I wonder if a BS standard chain is correct. The sprocket looks ok and the chain has very little play either side or length ways. Are there any other chain standards that could have been used on a Swiss machine.
When I got the machine the traversing was not working and it turned out to be the usual motor phases wrong, so I have no idea what state this chain drive was in originally.
Ciao Adrian.
The chain looks like it's the wrong pitch, it works but makes a clicking sound as it feeds onto the lower sprocket. The tighter the chain the more pronounced the click, so there is definitely a pitch issue. The length is correct as the adjustment is in the center of it's range.
It would appear to be a 5/8" pitch chain and I wonder if a BS standard chain is correct. The sprocket looks ok and the chain has very little play either side or length ways. Are there any other chain standards that could have been used on a Swiss machine.
When I got the machine the traversing was not working and it turned out to be the usual motor phases wrong, so I have no idea what state this chain drive was in originally.
Ciao Adrian.