30
※
The standard initial assembling position of the movable knife
①
is where the movable knife-edge protrudes
about 3mm
③
from the fixed knife edge
②
when the trimming action is finished, that is, when the movable
knife is in its initial stop position. When fixing the position of the movable knife, the following directions must
be followed so that the power generated in the cam
④
is delivered without any loss to the trimming action.
(Adjustment Order)
①
Manually turn the pulley to finish trimming of the trimming cam
④
. Place the cam so that the roller
⑧
can enter
the complementary straight line
⑤
.
②
Slightly loosen the fixing screws
⑥
of movable knife shaft crank.
③
Press the trimmer shake linkage
⑦
to enter the roller
⑧
inside the cam. Push slightly the ball joint linking bar
⑨
to the right so that there is no excess room in each linking device. When this is done, the roller
⑧
adheres to the
right side of the cam
’
s complementary straight line
⑤
, as can be seen in the picture
⑩
. While maintaining this
position, adjust the movable knives on the right and the left to protrude about 3mm from the fixed knife-edge
②
.
Now, tightly fasten the crank fixing screws
⑥
.
④
If the initial position of the movable knives of both sides are to be adjusted slightly, use the ball joint linking bar
⑨
.
D) Adjusting lower thread holder
※
The position of lower thread holder
①
is set by
fixed knife
②
and bolt
③
.
As in the picture, loosen the bolt
③
and place the
lower thread holder
①
edge at the lower side of
the movable knife, about 8mm apart from the
movable knife edge
⑤
. Make sure to check that
the right and left upper sides
and
of the
lower thread holder is tightly adhered to the
lower side of the movable knife.
[Figure 57]
⑤
③
①
②
④
①
3mm
8mm
⑤
①
⑷
Checkpoints on the assembling status of other trimming devices
Check the starting point of the movable knife when the trimming action takes place
Operate trimming movement manually to check whether the thread take up lever is in the lowest or at least 2.5 mm
raised level when the movable knife starts working. (See Figure 58)
Maintenance of fixed knife
When the thread does not get trimmed or if the trimmed section of the thread is sloppy, please check the edge
condition of the fixed knife.
If the edge of the knife is too dull, sharpen the edge using oil stone or sand paper. (See Figure 59.)
[Figure 59]
[Figure 58]
0~2.5mm
60。
60。
Lowest position of the
thread take up lever
(Sand paper)
(Oil stone)
Summary of Contents for KM-560
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