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7. ADJUSTING THE CORNER KNIFE
CAUTION
:
1. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
2. Do not touch your fingers or hands to the blade section of knife. so as to prevent fatal accidents.
3. Perform the adjustment work by the maintenance engineers who are familiar with the sewing machine
and trained for the safety so as to prevent accidents caused by unfamiliarity or wrong adjustment.
4. Be careful not to slip your hand since the adjustment work is performed with a screwdriver.
❶
A
Knife base A
X
Y
Knife fixing plate
[ Adjusting the cutting length of knife ]
Turn eccentric pin ❸
1)
blade screwdriver or the like and loosen the knife.
2)
Tilt the knife and adjust the cutting length.
Turn eccentric pin ❸
3)
blade screwdriver or the like and fix the knife.
④ After the adjustment, return the drawer to its home position and fix it with toggle clamp ❶ .
When returning the drawer, return corner knife on the moving side ❹ to the initial position.
❹
Knife base B
❷
X
Y
❸
in the direction of the arrow mark Y with a flat-
in the direction of the arrow mark X with a flat-
− 101 −
The angle of inclination
of the corner knife of this
model of machine has
been factory-adjusted to
approximately 60° at the
time of delivery so that the
blade tip of the knife does
not easily come in contact
with the rising part of the
welting patch.
① Release toggle clamp ❶ .
When drawing out the corner knives, move
corner knife ❹ on the moving side to its initial
position before releasing the toggle clamp.
If the corner knives are drawn out while the
corner knife on the moving side does not rest
at its initial position, corner knife and the table
can come in contact with each other, resulting
in breakage of the corner knife.
② Hold section A and draw out the drawer in the
direction of the arrow.
Draw it out. until it goes no further.
③ Adjustment procedure
[ Adjusting the open angle of knife ]
1)
Loosen angle adjustment
screws ❷ , adjust knife
bases A and B, and fix the
screws.
Direction of rotation
to loosen left/right
knives is different
from each other.
60°
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