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6-3. Adjusting the hook needle guard
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
1
2
0 to 0.1mm
When replacing the hook, confirm the position of the needle guard.
The standard position is the state that hook needle guard 2 comes in contact with the side of needle 1
and the needle is along the hook needle guard by 0 to 0.mm. If not, adjust by bending the hook needle
guard.
)
When bending the hook needle guard inward, perform by entering a screwdriver to the outside of
the hook needle guard.
2)
When bending the hook needle guard outward, perform by entering a screwdriver to the inside of
the hook needle guard.
6-4. Adjusting the inner hook guide
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
4
A
(Bend inward.)
3
2
1
5
2
)
Turn the handwheel in the normal direction to
bring inner hook guide 1 to the extreme rear
position.
2)
Turn bobbin case 2 in the direction of the
arrow, and make inner hook stopper 3 come
in contact with the groove of throat plate 4 .
3)
Loosen inner hook guide setscrew 5 , and set
the clearance between the inner hook guide
and protrusion A of the bobbin case to 0.2 to
0.3 mm.
– 27 –
(Bend outward.)
2
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