Phaff 145 presser foot to high

[DFH]

I moved the needle bar and it does not hit the foot any more and sews fine .  But after sewing for a few min. the front foot has slipped again and is contacting ahead of the needle again . The only thing I can figure because the screws are so bad I am not getting them tight enough .I am thinking of silver soldering pieces on top of them for a allen wrench   

[dikman]

Got any photos? I doubt if silver soldering would be strong enough to withstand tightening up with an allen key, but if that's all you've got available I suppose it's worth a try.

[DFH]

No more banging or knocking .Replaced all the bad screws it sure looks better . Took it to a retired mechanic he had the screws and the skill it was a great afternoon working on in his shop on this rainy day .

[dikman]

You did very well finding someone who had all the correct screws for a machine like that!

[DFH]

Yes he had small bottles of all kind of screws . The only thing left i need to do is replace the feed dog it is showing a lot of ware . I will call Henderson after the New Year .

I will pass this on the most frustrating noise turned out to be a very simple fix .   The shaft under the bed that goes from one end of the machine to the other that operates the feed dog was lose on the hand wheel end of the machine .     If it was the engine in a car it sounded like a bad rod bearing .       As it turns out that shaft is supported on each end with a tapered pin / shaft    

All i had to do is loosen one set screw tap the shaft in to take up the ware .     The long shat has female taper on each end and the pins are male .