Pfaff 141 User Manual

14. The safety clutch
Model C and D machines are equipped with a safety clutch which prevents disturbance of
the hook timing and damage to the bobbin case base in case of thread jamming in the
hook raceway.
If an irregularly spun needle thread should jam in the hook raceway and block the sew
ing hook, the safety clutch automatically disengages the hook drive.
After
the jammed thread has been removed, tilt back the sewing head and rotate the
balance wheel, while holding the hook drive shaft steady, until the tip of the latch is
positioned exactly above the groove in the clutch bushing. Now push back the spring-
loaded pin so that the latch can snap Into this groove.
To resume sewing, simply let down the sewing head again.
R 9343
Fig. 15
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 141 Specifications

General

Brand	Pfaff
Model	141
Category	Sewing Machine
Language	English