Singer 3368 - Sewing Machine Maintenance; Cleaning Stitch Plate and Feed Teeth; Lubricating the Hook Assembly

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Caution:
Always make sure that the machine is unplugged
from power source and the main switch is on "O"
before inserting or removing any parts and before
cleaning.
Remove the stitch plate:
Cleaning and lubricating the hook:
Important:
Turn the handwheel until the needle is fully raised.
Open the hinged front cover and unscrew the needle
plate screw with the screw driver. (1)
Remove the bobbin case and use the brush supplied
to clean the whole area. (2)
Remove the bobbin case. Snap the two hook
retaining arms (a) outwards. Remove the hook race
cover (b) and the hook (c) and clean with a soft cloth.
Lubricate at the points (d) (1-2 drops) with sewing
machine oil. Turn the handwheel until the hook race
(e) is in the left position. Replace the hook (c).
Replace the hook race cover and snap back the two
bobbin and replace the stitch plate.
Fabric fluff and threads must be removed
regularly. Your machine should be serviced at regular
Maintenance
1
a
b
c
d
e
hook retaining arms. Insert the bobbin case and
Cleaning the feed teeth:
intervals at an authorized SINGER service center.