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3.
Needle ldection
is
not
conec:l
(C.Ual)
.
Moue
ling of Timing belt, Clutch wheel
and pulley
Is
not correct.
Fig. 37
The connecting
part
of
timing
belt must
fit
both
concave
parts
of
.i
pulley and clutch wheel.
'i
(See on
paae
32
to adjsut.)
s
,
(Caua
2)
M ounting
of
rotary
cam or clutch
wheel
is
not
correct.
The carriage movement
is
SYnchronized
with
the needle selection
mechanism
with
timing
belt.
Therefore,
if there
is a
time
lag,
It
causes wron&
needle
selection.
(Correct
position of
rotii)'
am
and clutch
wheel)
telector cam
to
side.
(Cbeclc
the
pOiition)
(Upper
riew)
the
CODC&ft
patt
of
the clutdlwbulju11
"""'the
rofaly cam
shaft.
Fig. 38
When the flat part
of
r<?.JII!¥
cam
is placed horizontally, the concave
part of
clutch
wheel muit be just over the rotii)'
earn
shaft.
2.1
Remove the
timing
belt 1nd belt sulde plate of the
clutch
wheel.
·
2.2
Rem<We
the
map rln& for
clutch wheel
shaft
from
back side
and
~emove
the
car4;fee4ing
cam and card
reader
release
cam.
2.3
Pull up the
clutch
wheel a little,
and turn
the clutch
wheel to
get correct
p<)8itlon.
·
·
-37-
'
.
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