31
Fig. 1
SECTION 4. CARE OF YOUR MACHINE
Note
:
Turn off the power switch and unplug the machine
before cleaning or doing any type of maintenance. Do not
dismantle your machine other than as explained in this
section.
Cleaning the Feed Dog:
1. Remove the needle and the presser foot.
2. Remove the needle plate set screw and remove the
needle plate. (Fig. 1)
3. With a brush, clean out any dust and lint that is clogging
the feed dog teeth. (Fig. 2)
4. Replace the needle plate.
Cleaning the Hook Race Area:
To dismantle hook race unit:
1. Raise the needle to its highest position and open the
hook cover. (Fig. 3)
2. Open the hinged latch of the bobbin case and remove it
from the machine.
3. Open the hook race ring holders and remove the hook
race ring. (Fig. 4)
4. Remove the hook.
5. Clean the shuttle race with a brush and a soft dry cloth.
a. Bobbin case
b. Hook race ring holders
c. Hook race ring
d. Hook
e. Shuttle race
f. Center pin
g. Notch
To oil the shuttle race
:
1. Before assembling the shuttle race, oil the shuttle
race using a few drops of fine quality sewing
machine oil.
To assemble hook race unit:
1. Hold the hook by the center pin and fit it carefully back
into the shuttle race, forming a perfect circle with the
shuttle driver. (Fig. 5)
2. Attach the hook race ring making sure the bottom pin fits
into the notch.
3. Lock the hook race ring by turning the holders back into
position.
4. Insert the bobbin case back into the machine.
Fig. 4
Fig. 2
Fig. 3
a
b
Fig. 5
c
d
e
f
g
Summary of Contents for 612C
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