29
C. Final fixing of the movable knife
’’
s initial position (See Figure 50.)
[Adjustment Order]
ⓐ Manually turn the pulley to finish trimming of the trimming cam ④. Place the cam so that the roller can enter the
complementary straight line ⑤.
ⓑ Slightly loosen the fixing screws ⑥, ⑦ of movable knife shaft crank of both the left and the right.
ⓒ Press the trimmer shake linkage ⑧ to enter the roller ⑨ inside the cam. Push the linking bar ⑩ to the right or the
left crank linking rod ⑪ to the left so that there is no excess room in each linking device. When this is done, the
roller ⑨ gets to adhere to the right side of the cam’s complementary straight line ⑤, as can be seen in the picture
⑫. While maintaining this position, adjust to make the movable knives on the right and the left protrude about 3mm
from the fixed blade-edge ②. Now, tightly fasten the crank fixing screws ⑥⑦ on both sides.
ⓓ If the initial position of the movable knives of both sides are to be adjusted slightly, use the ball joint linking bar ⑩.
If only the movable knives are to be adjusted, use the linking rod ⑪.
D. Adjusting lower thread holder (See Figure 51.)
The position of lower thread holder ① is set by
fixed blade ② and bolt ③. Like in the picture,
loosen the bolt ③ and place the lower thread
holder ① edge at the lower side of the movable
knife ④, about 8mm apart from the movable
knife edge ⑤. Make sure to check that the right
and left upper sides , of the lower thread
holder is tightly adhered to the lower side of the
movable knife.
The standard initial assembling position of the movable knife ① is where the movable knife-edge protrudes about
3mm ③ from the fixed blade 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.
Movable knife initial assembling position
Trimming cam lead
complementary
straight line
trimming
finish point
starting point of movable
knife movement
[Figure 50]
[Figure 51]
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