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51
10. Adjustment
LK3-B448E MARKII/BA-16
4. Gently tilt back the machine head, and then place the
V-belt u remove the V grooves on the machine head
pulley i and the motor pulley o.
NOTE:
After tilting back the machine head, do not push
the face plate side or the pulley side from above.
5. Gently return the machine head to its original position
replace V-belt.
* Be careful not to clamp the cords at this time.
6. Adjust the belt tension by moving the tension pulley
assembly to the right and left so that there is 9-10 mm
of deflection in the V-belt q when it is gently pushed
in the middle with a force of approximately 10 N. After
adjusting, tighten the bolt A to secure the left pulley
assembly.
7. Move the right tension pulley so that there is a gap of
about 1 mm between it and the V-belt q, and then
tighten the bolt B to secure the rigth pulley assem-
bly.
8. After adjustment, install the belt cover and the motor
cover.
10-17. Replacement the V-belt
r
q
e
w
y
t
i
u
o
e
belt
Approx. 1
mm
Approx. 9 - 10 mm
10N
A
B
1. Then remove the belt cover.
(Refer to “Tilting back the machine head” on page 35).
2. Remove the motor back cover q with the screws w
and the flat washers e.
3. Remove the wood screw t and washers y securing
the motor cover r, and remove the table.