Merrow Class 70 - Merrow Class 70 Looper Setting; Class 70 Looper Co-operation

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
THE MERROW MACHINE COMPANY ________________ _
LOO P ER S ETTING
32. For proper sewing, both the Upper and Lower Looper must co-operate with the needle.
Before adjusting
Loopers, insert a new Needle into the machine, since this action may make
further adjustment unnecessary. The Lower Loopers are made in two general forms, one for
one thread stitching and the other for two thread stitching, but genera l adjustment of the two
kinds
is similar.
33. Both the Upper and Lower Looper are nearly self-setting but may need slight bending. If
it is necessary to bend a Looper always bend it slightly too far in the direction desired and
flex
the Looper back to position.
Otherwise,
in use, the Looper is likely to gradually spring back to its original position.
Bend a Looper only in
its exposed shank portion, since the areas of the Looper subject to wear
are hard and will not retain a bend.
34.
In bending or ilexing Loopers, always use smooth surfaced pliers, or Looper Bender
30-10. If a Looper requires more than minor adjustment, remove the Looper from the
machine, hold it in a smooth jawed vice and bend it with smooth jawed pliers or Looper Bender
30-10.
I IN C~ES
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SETTING LOOPERS
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