29
Cleaning the Feed Dog
Remove the needle and the presser foot.
Remove the needle plate set screw and remove the needle
plate.
With a brush, clean out dust and lint clogging on the feed dog
teeth.
Reset the needle plate.
Note :
Turn off the power switch and/or unplug the machine
before cleaning the feed dog.
Dismantling and Assembling
Hook Race Unit
Note :
Turn off the power switch and/or unplug the machine.
To dismantle hook race unit:
Raise the needle to its highest position and open the hook cover.
Open the hinged latch of bobbin case and take it out of the
machine.
Open the hook race ring holders and remove the hook race ring.
Remove the hook.
* Clean the hook race with a brush and a soft dry cloth.
Bobbin case
Hook race ring holder
Hook race ring
Hook
Hook race
1
2
3
4
5
To assemble hook race unit:
Hold the hook by the center pin and fit it carefully back into the
hook race, forming a perfect circle with the shuttle driver.
Attach the hook race ring making sure the bottom pin fits into the
notch.
Lock the hook race ring by turning the holders back into position.
Insert the bobbin case.
Pin
Notch
6
7
1
2
3
4
5
6
7
SECTION 6. CARE OF YOUR MACHINE
Summary of Contents for 419S
Page 1: ...Models 419S 423S...
Page 34: ...Printed in Taiwan 303 800 051...
