4.2 Needle bar height
Caution: Danger of injury !
Switch off main switch.
Check and adjust needle bar height only when sewing machine is
switched off.
Standard checking
In looping stroke position the hook tip must be a t the level of the middle
of the needle hollow groove 3.
–
Move needle in looping stroke position by handwheel.
In looping stroke position the hook tip is at the level of the middle of
the needle.
–
Check position of the hook tip to the needle hollow groove 3.
Correction
–
Take off head cover.
–
Loosen both screws 1.
–
Adjust the height of needle bar 2 in such a way that the hook tip is
at the level of the middle of the needle hollow groove 3.
Attention!
Needle bar 2 must not be twisted when being shifted.
–
Tighten screws 1.
ATTENTION !
After a correction of the needle bar height:
Check position of the hook protection and correct it, if necessary.
A wrong adjustment of the needle bar height can have the following
consequences:
–
Damage to the hook tip
–
Jamming of the bobbin thread between needle and needle
protection
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2
3
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