【
6
】
TO ADJUST THE TIMING BETWEEN THE UPPER AND THE LOWER SHAFT
■
Turn the hand pulley and align mark B on the hand
wheel mark P. The needle bar position would be at
the top of its stroke.
■
In this case, the line E marked on the lower shaft D
should be vertical. And make sure if the first screw
S of the turning direction is above the V-belt pulley
C or not.
■
If not, loosen screw G (4pcs) on the timing pulley F
of the upper shaft to be adjusted to the
above-mentioned position.
Make sure of tightening screw G (4pcs) again after
adjustment.
9
F
F
B
B
X
X
s
s
e
e
r
r
i
i
e
e
s
s
