Working basis
Service Instructions 171/173 - 00.0 - 01/2020 13
3.3.2 Handwheel positions
Some settings require that the machine be set to a specific position.
Height of the thread take-up disk
Pusher eccentric for the feed dog
Expansion screw for replacing the arm shaft crank
Position Setting
A Adjusting disk on the upper toothed belt wheel with its deepest slot A
to the groove in the arm shaft crank
B Symmetry of the hook movement
C • Position of the lower toothed belt wheel
• Looping stroke
• Needle bar height
D Stroke and pusher eccentric of the feed dog on right-hand machines
E • Thread pick-up disk
• Eccentric for the puller
F Stroke and pusher eccentric of the feed dog on left-hand machines
Gage Setting
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