– 6 –
○
Remove setscrew
5
from the thread tension cover.
Remove the thread tension cover.
○
Remove setscrews
6
to
!0
from the spool cover.
○
PulloutthecableofbobbinwindermotorfromthemicrocomputerPCB.
○
Remove the spool cover from the main unit of the machine, paying attention to
thebasetension.
○
Remove setscrews
!1
and
!2
fromthebottomcoverofthefreearm.
Removethebottomcover.
4) Spool cover
5) Bottom cover of the free
arm
6
7
8
9
!0
5
Microcomputer PCB
Base tension
!1
!2