Thread Tension Mechanism - Janome MC7700 QCP Service Manual

THREAD TENSION MECHANISM ADJUSTMENT
WHEN THE PRESSER FOOT LIFTER IS RAISED, THE TENSION DISKS SHOULD OPEN APPROXIMATELY 1.0 MM.
WHEN THE PRESSER FOOT IS LOWERED, THE TENSION DISKS SHOULD CLOSE AND THE TENSION RELEASE
PLATE (2) SHOULD BE FREE FROM TENSION.
DISK HOLDER
TENSION RELEASE PLATE
TENSHON DISKS
MECHANICAL ADJUSTMENT
SETSCREW (A)
THREAD TENSION DIAL
1. OPEN THE FACE PLATE.
REMOVE THE TOP COVER (SEE PAGE 2).
2. LOWER THE PRESSER LIFTER.
3. ADJUST THE THREAD TENSION DIAL AT "9".
LOOSEN THE SETSCREW (A).
4. PRESS THE TENSION RELEASE PLATE TO
THE DISK HOLDER.
5. TIGHTEN THE SETSCREW (A).
RAISE THE PRESSER FOOT LIFTER.
MAKE SURE THE TENSION DISKS SHOULD OPEN
AT "9" SETTING.
6. LOWER THE PRESSER FOOT LIFTER.
TURN THE THREAD TENSION DIAL "9" TO "0".
MAKE SURE THE TENSION DISKS DOES NOT
MOVE.
7. ATTACH THE TOP COVER.
CLOSE THE FACE PLATE.
AFTER THIS ADJUSTMENT, CHECK THE THREAD
TENSION (SEE PAGE 16).
18