GALKIN GAP-X5, Operations Manual & Parts List

Page: 11 / 63

F. Upper Looper Position
1) Height Setting
Setting the upper looper too high, or too low, will result on the looper failing to
catch the needle thread, or in the needle or thread breakage. To set the height,
use a 5mm hex wrench on the screw at the end of the upper looper bracket to
adjust looper height to 17/32 inch(13.7mm) above the throat plate, (Figure13,
dim D) when the upper looper is at the extreme left of its travel.
2) Protrusion
Set upper looper protrusion to 13/64 inch (5.1mm) to the needle (Figure 13, dim
E).
3) Clearance Setting
See Section 4.F., above, for clearance between the upper and lower loopers.
G. Chain Looper Adjustment
1) Looper Position
Looper position is set to ensure proper forming. Set the position so that, when
the looper is at the leftward most point of its travel, the point is 1/16 inch
(1.7mm) from the center of the needle (Figure 14, dim L).
2) Looper Clearance (Figure 14)
As the point of the looper passes behind the needle, it should just clear the back
of the needle by about .004 inch (paper thickness). If not properly set, the looper
may miss, picking up the thread, or it may hit the needle, breaking the needle or
damaging the looper.
From the library of: Diamond
Needle
Corp