yoji

Hi All Due to limited cylinder arm table availability here, i need to make my own table. by recycling some of the materials from the old one. In order to make the most out of my working space i would like to use a bit narrower table. So my question is, does the V-belt which goes from the motor pulley to the machine pulley must be angled like around 45 degrees? Or is it OK to place the motor pulley directly under the machine pulley (180 degrees)? It is for adler 69 cylinder arm. My logic tells me that it should not cause any loss in torque, but i am not the experienced one here, nor an engineer. Also i am going to use a somewhat strong and dense 25- 30mm MDF and 3mm steel plate underneath for some extra durability.. Is it too much? I am using a servo motor which is around 13lbs, and the adler around 62lbs. (i will be placing a leg just under the machine to remove some of the stress and distribute weight better in order not to stress the wood too much. does the plate is an overkill? Thanks.

Finally done. Now it works like it should.. Apparently there is a chapter in the manual called "advancing movement of the upper feed foot" which lets you to position the the foot on top of the dog by loosening two screw on the cam insinde the arm. it was a little bit tricky to set it up since once the cam is loose it is a bit hard to get it screwed back again at the correct position since it moves and you no comfortable acces to it. Steve, thanks for the guidence.

Hi Steve Thanks for your reply. Yup, the allen key is there for around 4-5 hours I have tried almost eny combination but i cant figure out that sweet spot where the feeder fott meets the dog and pulls the material while the needle on down stroke. It never comes up the correct way. And if somehow i manage to sync the feeder and the dog, thn the pressure foot wont move at all.. Any tips on which position should i put the needle before resetting the foot height with the allen key?

Hi all, Thank you for this wonderful forum. Without it i would probably waste my money on any "industrial machine" which could not handle what i needed. After reading for a long time and considering the limited availibilty of leather sewing machines here, i have finally got an Adler 69-373 cylinder arm, what a heavy machine. If it is Adler (not durkopp -adler) , so i think it must be pre 1980? Anyway, i tested the machine and it was working good. Cleaned it up inside and out and started to test again. It was skipping a lot of stitches, so i tried different needles from different manufacturers but nothing helped. So i got the manual and starting to play with the settingst. Obviously i have made a mistake somewhere along the road which messed up the synch between the feeder foot and the presser foot. The material pressor foot is always down, not moving at all and the feeder foot is moving out of sync from the needle (when the needle is up the foot is down and vice versa). I tried to get them back into synch but whatever i do i can not manage to get them back to work in harmony. The manual not really talks about the sync between these two or how to set it up correctly. I will really appriciate any help! Thanks a lot Yossi