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1~4~]
Treadle
Stepping Pressure
★If the machine starts running at low speed just by
placing your foot on the treadle or by stepping on it
lightly, the adjustment is required to change the
position [(a) through (d)] where the treadle spring
O
is hung on the treadle lever @.
* The stepping pressure is required more in the order
from (a) to (d).
Stepping Back Pressure
★ Loosen the nut 0 and turn the bolt O for adjust¬
ment. When the bolt Q is tightened, the stepping
back responds heavily. And when loosened, it
responds lightly.
Stepping Stroke
★When the nut
0
is removed and the connecting
joint
0
is moved as shown in the figures A and B,
the stepping stroke increases by 80%. When the
stepping stroke is changed, the stepping and the
stepping back pressures change and require re¬
adjustment.
1. Be sure to turn off the power switch.
2. Disconnect the motor plug.
3. Remove the clamp screws O-
4. Remove the brushes 0
5. After checking the reference line of the brush ©,
mount the usable brush
0
so that the reference
line
0
directs toward the treadle unit. Replace
the brush used to the reference line
0
with a new
one.
6. Tighten the clamp screws O with 10-15 kg/cm
torque.
7. Connect the motor plug.
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