2.11 Sewing arm
2.11.1 General information
The switches on the cylinder are actuated by the magnet core on the
piston rod when the sewing head is lifted or lowered.
The catch 1 serves for locking the sewing head in its upper position
when the pneumatic system is depressurised, e.g. after pressing the
key "
O
" or after stopping the machine.
2.11.2 Lower position of the sewing arm
Caution: Danger of bodily injuries !
The machine must be in the position "Safe motor stop ".
Rule and control
In the lowered position of the arm, the hexagonal distance gauge 4
(82,8 mm high) should fit between the throat plate and the underside
of the sewing arm.
–
Lower the sewing head by the function "
Lifting/lowering the
sewing head
".
–
Press the key "
O
".
"Safe motor stop " will be switched on.
Correction
–
Loosen the counter-nut 2.
–
Turn the piston rod 3 accordingly.
–
Tighten the counter-nut.
Note
With this adjustment, the upper position of the sewing arm will be
determined by the piston rod stroke of the cylinder.
4
2
3
1
31
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