43
[Correct condition]
(1) Bobbin winder switch
(SP)
Move the bobbin winder
lever to the right and left.
Right Left
Press the stitch length plus
button.
(2) Presser bar lifter switch
(FL)
Move the presser bar lifter
up and down.
Up Down
Press stitch length plus
button.
(3) Auto thread cutter switch
(cL)
Move the driving arm (1) up
and down.
Up [oF] Down [on]
Press the stitch length plus
button.
(4) Drop feed switch (dd)
Move the drop feed lever to
the right and left.
Left [UP] Right {dn]
Press the clear button to
proceed to the next step.
* By pressing the stitch
length minus button, you
can return to the previous
step.
3. Switch
Bobbin winder switch
Presser bar
lifter switch
Auto thread
cutter switch
Drop feed
switch
Bobbin winder
lever at right
Bobbin winder
lever at left
Presser bar
lifter “UP”
Presser bar
lifter “DOWN”
Auto thread
cutter clutch
“UP”
Auto thread
cutter clutch
“DOWN”
Drop feed lever
at left
Drop feed lever
at right
Cam groove
Pin (C)
Move the driving arm (1)
Auto thread
cutter switch
[Faulty condition]
The LED does not change, or
it shows conversely.
Adjust the position of the switch, or
replace the switch and/or circuit
board A.
Summary of Contents for MC6300P
Page 1: ...SERVICE MANUAL MC6300P...
