Adjusting The Looper Thread Trimmer Mechanism; Initial Position Of The Looper Thread Trimmer Mechanism - JUKI MF-7900 Instruction Manual

VI. ADJUSTING THE LOOPER THREAD TRIMMER MECHANISM
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest. In addition, cut the air
supply from air compressor.
❹
24 ± 0.5 mm
When lower knife ❹ is located at its leftmost position,
the top end of the lower knife ❹ has to be spaced 24 ±
0.5 mm from the center of needle bar.
Center of needle
bar
– 7 –
1. Initial position of the looper
thread trimmer mechanism
Perform the work with the needle bar at the
highest position when actuating the thread
trimmer mechanism by hand.