39
8.3.2) Disassembling the thread detector
You will need to disassemble the thread-break detector unit when you to have to clean it for more smooth
rotation. Remove the cover of the thread tension adjusting plate, separate the cables of the thread detection
board, and unfasten the roller base bolts. The entire unit will be disassembled including the rollers and bush
bearing.
8.3) THREAD DETECTOR ASSEMBLY AND FUNCTIONS
8.3.1) Functions of the thread detector
The thread detector prevents bad embroidery by detecting breaks of the upper or the lower threads. The thread
detection roller performs the detection.
Roller base bolt
Thread detector roller
Bush bearing
Roller base
Film
Wrong detection can occur if the thread detection roller does not rotate smoothly.
CAUTION
1) When assembling the thread detection roller, check between the sensor groove and the film
on the thread detection board.
2) Thread detection may not work according to the location of the thread detection board.
3) You can adjust the location of the board using the board base bolts.
CAUTION
Summary of Contents for MA-6
Page 2: ......