Adjustment Of The Moving Knife And Counter Knife Position; Floating Amount Of The Thread Tension Disk - JUKI AMS-221EN Series Engineer's Manual

(21) Adjustment of the moving knife and counter knife position

Counter knife position : The clearance between the counter knife
Moving knife position : Before thread trimmer operation (standby state), the distance from the throat plate
1.0mm

(22) Floating amount of the thread tension disk

When the sewing machine power supply is turned off (AT solenoid
tension and thread tension disc
4 mm or less
A
B
Standard Adjustment
front end to the tip of the thread cutter lever (small)
However, there shall be a proper clearance toward the moving knife tip during needle
thread clamp and feed forward.
Standard Adjustment
is 1.6mm for S type and 1.1mm for H type.
Close contact
0.5mm
Plunger shaft center
and the needle hole guide
18.5mm
is OFF), the gap between AT thread
Hole center of
oblong hole
– 34 –
is 18.5±0.5mm.
There shall be a
clearance
±
18.5 0.5mm
±
H : 1.1 0.1mm
±
S : 1.6 0.1mm
Plunger shaft center
C
0.5mm
is 1.0mm.