3.1.2 Description and adjustment of the integrated setting disk
By means of the locking pin 1 and the integrated setting disk 2, located
on the toothed belt pulley, the machine can be locked in any setting
position.
The setting disk is provided for this purpose with 6 incisions, marked
on the handwheel by the letters 
A, B, C, D, E
 and
 F
. The letters
indicate the position, in which the machine can be locked by the pin 1.
The 
A
 incision (loop stroke position) is deeper than the other incisions. 
Settings in the different positions:
A
Setting disk in respect to the groove in the arm shaft crank,
parallelism,
belt pulley, loop stroke, distance of the hook tip to the needle
C
2
nd
 needle position 
D
Control cam for the thread cutter 
E
Needle bar height 
OT
Upper dead centre 
Setting the phase position of the lifting eccentric
1
A
E
F
D
C
B
1
2
OT
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