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3-8. Adjusting the take-up thread tension control lever
Needle
thread loop
Lowest
point dead
MS-1261A
: 3 mm
MS-1261AM
: 0 mm
❶
❷
❸
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Needle thread loop size is determined
by adjusting the position of take-up
thread tension control lever
❶
.
The needle thread loop size changes
in accordance with the thread and
material used. So, adjust the thread
loop size upon occasion.
1) Loosen two screws
❷
, and adjust
the position of the thread take-
up lever guide by moving it up or
down.
3-9. Adjusting the position of the intermediate tension release lever and needle thread ten-
sion controller
Adjust the position of intermediate thread tension releasing lever
❶
and thread guide
❹
of the needle thread
tension controller as described below.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
1) Turn the handwheel to bring the nee-
dle bar to the highest dead point.
2) Remove rubber cap
❷
. Loosen
setscrew
❻
locating under the rub-
ber cap. Adjust intermediate thread
tension release lever
❶
so that the
thread coming out of intermediate
needle thread guide
❸
is horizontal.
3) Then, loosen two screws
❺
, and
adjust the position of thread guide
❹
of the needle thread tension control-
ler so that the thread coming from
intermediate thread tension releasing
lever
❶
makes a beeline.
❺
❶
❹
❸
Highest dead
point
2) Adjust so that, when the needle bar is in the lowest dead point, the top end of the thread tension control
lever is positioned 3 mm above the top end of thread hole in needle bar thread take-up lever
❸
. (0 mm for
MS-1261AM)
3) Lowering thread tension control lever
❶
decrease the loop size. Lifting the lever increases it.
❷
❻
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