How to reduce speed on siner 95-10 industrial clutch motor machine?

[Kohlrausch]

1 hour ago, obow60 said:

 The enclosure will consist of 2-4 layers of sunbrella material and a layer of .030" clear vinyl material.  I figure I need a least a 3/4hp motor with 2" pulley.

Hi,

 

I once stitched 20 layers of truck tarpaulin, 1/2 inch total. That took about 1/7 hp to accomplish. I did this twice, one time with a clutch motor converted to single phase at 700 stitches per minute at a Pfaff 145 and one time with a servo motor at 70 stitches per minute at a Pfaff 345. The clutch motor drew 150 watts, the servo 130. Considering that the effectiveness of the motors is about 60 percent for the clutchies that's about 100 watts power output. Four layers of sunbrella I can sew on a Husqvarna Viking Combina 19e-houshold sewing machine (technically speaking. In real live the Husky gets pushed over the table by the weight and stiffness of my old folding kayak skins ;-) So I think you can go easy on the motor power, it won't be the limiting factor.

 

Greets

Ralf C.

[Northmount]

3 hours ago, obow60 said:

 The belt that is on the machine now is a round leather one, will I need to change the fly wheel also and will the servo motor allow me to do a back/lock stitch? I will only be using the machine a few times a year but want it to be set up the right way. Sorry for all the questions but this all new to me. If it were any kind of vehicle I'd have no problem fixing it.

OBOW

The round leather belt will ride just fine in the pulley on the servo motor. 

Note you can't do a back/lock stitch by turning a sewing machine backwards.  The hook is designed to only pick up the thread loop when turning the correct direction.  It can not pick up the thread loop when turned backwards. 

Tom

[dikman]

What he said. If the machine isn't manufactured with a reverse lever then you can't sew "backwards". The usual method in this case is to turn the material around, if possible, and sew a few stitches then turn it back and start sewing normally. This will lock the stitches.

As to which motor to buy, yes, that can be confusing with the choices out there. A 500w (3/4 hp) should be more than adequate for your needs. If you have any qualms about buying one from China, via ebay, then I suggest you look at the sponsors/vendors on this site and buy locally. You are lucky, in the US, in that you have dealers who sell these motors at reasonable prices. This will at least give you peace-of-mind and they're not that much dearer than buying via ebay.

[obow60]

I put the Consew CSM550 motor on and it works great. I can control the top rpm speed with the nob and variable feed speed with the pedal, it works great. Toke some time to redo the pedal linkage but it worked out well.
Thanks to all for your feedbacks
OBOW

[SewNice336]

I am new to Leatherworker.net. This thread was very helpful. I had been thinking about replacing the clutch motor on my Singer 95-10, but didn't know where to start. This thread answered all of the my questions. I hope to replace the motor in the next couple of weeks. I will keep you updated. THANKS OBOW60 AND ALL WHO CONTRIBUTED!