JUKI APW-895 Engineer's Manual page 13

The knife is driven by the air cylinder. Therefore, relieve the air
pressure before adjustments.
1. Loosen two setscrews
throat plate at 5mm in the state that the moving knife
to the extreme front. Adjust the distance toward the needle
to 32 mm and tighten the two setscrews
In this case, confirm that a proper clearance is secured between the
center knife and the spreader
1. Loosen two setscrews
and left blades of the counter knife
knife . Then tighten the two setscrews
2. Check the motion of the cylinder shaft
accomplish cutting assuredly at 17.6N (1.8kgf) or less.
3. After thread cutting, the holding force for needle thread clamp is
more than 2.9N (300g) both right and left.
In the case when this force is not secured, select an adequate spacer
.
[The spacer has four types of thickness: 0.2mm, 0.4mm, 0.6mm,
and 0.8mm]
1. Loosen the setscrew
knife can be pulled off downwards.
2. Install a new moving knife
At that time, the pin
the moving knife
* The needle thread trimming unit has some mounting parts that can
change with the gauge size. Refer to the table below for details.
Size
No. 8mm
Name of parts
1 Counter knife
2 Moving knife 40033814
3 Clamp plate
Adjustment Procedures
and maintain the clearance toward the
.
Adjustment Procedures
of the counter knife
uniformly against the moving
. Confirm that it can work to
Adjustment Procedures
and remove the pin
and insert the pin
should be held almost in the same plane of
. Tighten the setscrew
10mm 12mm 14mm
16409906
40023020 40033809
40033815
is advanced
to 30
.
and push both right
again.
. Then, the moving
.
.
16mm 18mm 20mm 22mm
16411308
40033810
16411407
– 8 –
Results of Improper Adjustment
Results of Improper Adjustment
Results of Improper Adjustment
24mm 26mm 28mm
40039788
40033811 40033812
40039783
30mm 32mm
40033813