Strobel KA-ED, Operating And Mechanic'S Instructions

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BA_KA-ED_A22_190313_en.doc
5.7 Setting of switch S7 (Fig. 23)
Function:
Switch S7 is at the start of the stitch, about 2 mm before the highest position of the
plunger, and enables the sewing drive by closing its contact. At the end of the stitch
the carriage return is not enabled until switch S7 is activated, the contact is open.
Switch S7 is equipped with a light emitting diode.
Plunger up - contact S7 closed - LED is not lit
Plunger down - contact S7 open - LED is lit
Setting:
- Switch on main switch S0.
- Reduce air pressure on the maintenance unit to 1 bar.
- Switch on “Sewing stop” with button 1 on the operating control V810.
-
Switch toggle switch S6 on the switch box to “ ” position (“0” position). Start
up of the sewing drive and the carriage is blocked.
-
Turn the plunger all the way to the topmost position with the stitch depth
controller.
- LC display indicates 010 - 012.
- Loosen the two lock nuts (1) by loosening the two threaded pins (2).
CAUTION: Do not unplug plug switch S7 in the process.
- Loosen M3 screw at S7 and push switch down in the guide from the top edge of
the lift cylinder until the LED goes out. After the LED goes out continue pushing
the S7 switch further up until the LED just lights up again (after about 17 mm).
- Tighten M3 screw on S7 switch.
- Turn the plunger downwards with the stitch depth controller 6.5 rotations. LC
display indicates 650.
- Turn the plunger to the top with the stitch depth controller. The LED at S7
should go out after at the latest 4 rotations (400 ±30 on the LC display) before
the highest plunger position.
- In case the LED is still lit when the LC display indicates 370, loosen the M3 screw
and push the switch down a little. In case the LED goes out before 430, then
loosen the M3 screw and push the switch down a little. Tighten the M3 screw at
the S7 switch and turn the plunger downwards (at least 650 should be indicated
on the LC display and LED should be lit). After that check the switchpoint 400
±30 again.
-
If the switch point is correctly set, then switch S7 is to be secured again using the
two lock nuts (1).
-
Switch toggle switch S6 on the switch box to “ ” position (“1” position).
-
Switch off “Sewing stop” with button 1 on the operating control V810.
- Set the air pressure at the maintenance unit to 5 to 6 bar.