To Adjust The Pressure On The Pedal Switch Assembly:
1.
The pressure setting on the Pedal Switch Assembly (33F) has been factory set
and should only be adjusted when sewing a special material. (See Figure I.)
2.
Turn the Adjusting Screw (14B) clockwise to increase pressure for heavy-weight
materials such as denim, tweed, or hard linen. (See Figure D.)
3.
Turn the Adjusting Screw (14B) counterclockwise to decrease pressure for light-
weight materials such as georgette, lawn, or tricot.
(See Figure D.)
3 Thread And 4 Thread Overlock:
1.
This is a two Needle/4 thread overlock Sewing Machine. One Needle/three
thread overlock can be done by means of using only the left or right Needle and
three threads. When using only one Needle, make sure to remove the other
Needle. (See Figure N and Figure O.)
SKU 91500
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REV 12/04
2.
Set the Upper Knife (2D) in its non-operating position as described in steps 4-a
and 4-b under
To Replace / Adjust the Upper Knife on page 15.
(See Figure M.)
3.
Loosen the Screw (30D), and remove the Lower Knife Pressure Plate (29D) and
the old Lower Knife (28D).
4.
Place a new Lower Knife (28D) in the groove of the Lower Knife Bracket (27D),
and align the cutting edge slightly below the top of the Needle Plate (1E). Re-
place the Lower Knife Pressure Plate (29D) and tighten the Screw (30D). Then,
return the Upper Knife (2D) to its original position. (See Figure D and Figure M.)
RIGHT LOOPER THREAD (TOPSIDE)
LEFT NEEDLE THREAD
RIGHT NEEDLE THREAD
LEFT LOOPER THREAD
(UNDERSIDE)
FIGURE N
