Landis McKay Stitcher 77, Инструкция для оператора

Страница: 7 / 18

LANDIS “77”
-5-
SETTING THE CAST-OFF
The adjustment of the Cast-Off S-95 is important. The Cast-Off Point
must be set low enough to completely cover the barb of the Needle S-
92 as the Needle pulls the thread up.
To adjust Cast-Off up or down, loosen Cast-Off Screw S-97, raising or
lowering the Cast-Off to the desired position, and afterward tighten-
ing the screw. (See figure 4).
The correct relation of the Cast-Off to the Needle is that it just clears
the side of the Needle. To test this relation, raise and lower the Cast-
Off repeatedly by lifting on Cast-Off Block, S-96. If too close, the
Cast-Off will spring the Needle sideways. To correct this, spring the
Cast-Off a little away from the Needle. Pliers will be found in the
supply package for this purpose. Should the Cast-Off be too far from
the Needle, remove the Needle, spring the Cast-Off in as much as nec-
essary.
TO REMOVE AND REPLACE CAST-OFF: Loosen Cast-Off Set Screw
(S-97). Loosen and take off Needle Clamp Collar S-93, remove Cast-
Off. To replace Cast-Off, insert Cast-Off in Cast-Off Block, tighten
Set Screw and replace Needle Clamp Collar. (See figure No. 4).
ADJUSTMENTS FOR ELIMINATING THE SKIPPING OF STITCHES
See that the following are in proper adjustment:
Timing of Whirl (See Page 8)
Setting of Needle (See Page 4)
Setting of Cast-Off (See Page 5)
LENGTH OF STITCH - ADJUSTMENT OF FEED
The usual practice is to use about 4-3/4 stitches per inch. Should
you desire to sew more or less stitches per inch, loosen the Hexa-
gon Screw S-260 on Feed Cam S-255. Turn Adjusting Screw S-
259 on Movable Cam S-256 in for more stitches per inch and
out for less stitches per inch. After adjustment is made, press
Movable Cam and Feed Cam together and tighten Hexagon
Screw. (See figure No. 5).
Figure No. 4
S-93
S-95
S-92
S-97
S-96
Figure No. 5
S-256
S-259
S-255
S-260