U.S. BLIND STITCH MACHINE CO.
IS A DIVISION OF NEW YORK SEWING MACHINE ATTACHMENT CORP.
2011-15 85th Street, North Bergen, NJ 07047
•
Web: www.usblindstitch.com
Tel: 201-809-2009 • 1-800-225-2852 • FAX: 201-861-9201 • e-mail: [email protected]
15
9. After all the necessary adjustments have been made, tighten all set screws and the lock nut
and recheck all the adjustment points. Referring to Figure 9, the looper should now clear the
chain-off pin (“D”), feeder (“E”), looper slot (“F”), needle, and pass over the needle in the correct
position to pick up the loop.
B. REPLACING THE NEEDLE GUIDE
1. After considerable service, it may be expected that the wearing action of the needle will
cause a sharp edged groove to form on the needle guide (item “G” in Figure 9).
This condition can cause thread breakage and uneven penetration. When this happens the
guide should be replaced. The needle guide was specifically designed as a readily replaceable
wear plate to prevent damage to the presser foot from the action of the needle.
2. Loosen the needle guide attaching screw (item “A” in Figure 9) and remove the worn needle
guide. Clear out any lint or dirt that may have accumulated under the old guide and insert the
new guide. Insure that the new guide is seated flush with the top and side of the presser foot
and then retighten the attaching screw. Slowly turn the handwheel in the direction away from
the operator and check to insure that the new guide fits properly under the needle and that no
interference has been introduced between the guide and the looper.
C. REPLACING THE SHOE
1. The shoe, (item "E" in Figure 8), also known as a cloth retainer, normally will not required
replacement. However, in the event of wear due to the particular fabrics being used, or if the
shoe or spring suffers any damage, they may be readily replaced.
2. The first step is to remove the complete front guide assembly by unscrewing the front guide
holder attaching screw (item “A” in Figure 8). Next loosen the shoe pin and the shoe eccentric
barrel lock screws, (item “B” Figure 8), and slide out the shoe pin (item “F”), shoe and retaining
spring (item “G”). Before removing these components it is advisable to note the manner in
which the spring is assembled so that it may be reinstalled in the same way.
FIGURE 9
From
the
library
of:
Diamond
Needle
Corp
