Operation
Operating Instructions 878-M PREMIUM - 02.0 - 02/2018 39
5.6.2 Setting hook thread tension
Fig. 19: Setting hook thread tension
The hook thread tension is adjusted using the adjusting screw (1).
Insert a screwdriver through the hole (2).
To increase the tension:
1. Turn the adjusting screw (1) clockwise.
To reduce the tension:
1. Turn the adjusting screw (1) counterclockwise.
WARNING
Risk of injury from needle and moving parts!
Switch off the sewing machine before adjusting
the hook thread tension.
①
②
(1) - Adjusting screw (2) - Hole