UnionSpecial 31200AQ64, Adjusting Instructions And Illustrated Parts List

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DESCRIPTION OF MACHINE
31200AQ64
High Speed, Feed Up The Arm, Plain Feed, Two needle, two looper, Side Wheel Cylinder Bed Machine specifi-
cally designed for Taping Shoulders and Collar Seams on Knitwear.
Equipped with top tape reel and Presser Foot with folder for a precut 3/4" (19mm) tape to finish 3/8" (9.5mm).
Seam Spec. 401SSag-3. 6.4mm (16ga) needle spacing only. 4500 R.P.M. Maximum speed.
31200AQ64Z6
Same as 31200AQ64 except without presser foot.
NEEDLE TYPE:
128 GJS: Short, double groove, struck groove, thin ball point, spotted, tapered blade reinforcement, chro-
mium plated - sizes 070 / 027, 075 / 029, 080 / 032, 090 / 036.
SETTING THE NEEDLES:
Before readjusting the machine insert two new needles type 128GJS as far as they will go into the needle bar
head. The long groove must show to the operator. Tighten set screws securely.
SETTING OF THE NEEDLE BAR:
To set the needle bar for the correct needle space in line of feed use the assembled needle guard, as the
step of the needle guard is the same as the needle space. The needles should slightly touch the needle
guard. After the setting, check that the needles are in the center of the stitch holes.
LOOPER ADJUSTMENT:
Insert the rear looper in the rear looper holder and be sure that the screw rests on the looper flat. The looper
gauge is 13/64"(5.16mm) measured from the center line of the left needle to the looper point with the looper
at the extreme left of its travel. Use of looper gauge 21225 - 13/64" is of advantage. For adjusting the looper
gauge loosen the clamp screw of the rear looper holder and move holder on the looper shaft to obtain
proper setting.
NEEDLE BAR HEIGHT:
Set the needle bar so that the tops of the needle eyes are about 5/64"(2mm) below the looper points when
the points are flush with the right side of the needles on their travel to the right. Watch that the needle bar
does not turn during this adjustment.
LOOPER TO NEEDLE SET:
After setting the needle bar to the correct height, set the loopers front to back to touch but not deflect the
needles at loop taking time