Adjusting the potentiometer
74 Service Instructions 827/827-M - 01.0 - 05/2019
16 Adjusting the potentiometer
The potentiometer adjusts the s.p.m. to the set sewing foot stroke and
reduces the s.p.m. if the sewing foot stroke is too much.
Proper setting
After accessing the technician level and pressing the OK button, the left
display will show 1 in the first instance and the relevant maximum speed
next to it.
Cover
• Disassemble the arm cover ( p. 15)
Fig. 55: Adjusting the potentiometer (1)
To adjust the potentiometer:
1. Switch off the machine.
2. Keep the buttons P (2) and Reset (3) pressed down simultaneously
and switch on the machine when doing so.
The display starts.
3. Release the buttons P (2) and Reset (3).
The display indicates the current level.
The potentiometer is set at technician level t 10 04.
If the display indicates a different level:
WARNING
Risk of injury from moving parts!
Crushing possible.
The machine remains switched on when
the potentiometer is set.
Carry out all work with great caution.
(1) - ESC button
(2) - P button
(3) - Plus/Minus buttons
(4) - Reset button
(5) - OK button
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