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3. PREPARATION BEFORE SEWING
3-1.
Attaching the needle
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.
LH-4588C
❷
❶
❶
LH-4578C
❷
❶
❶
3-2.
Attaching and removing the bobbin
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.
❶
❷
❸
❷
❸
Switch "off" the motor.
Use DP×5(134) needles.
1)
Turn the handwheel until the needle bar has
come up to the highest point of its stroke.
Loosen needle clamp screws ❷ and pick up
2)
two needles ❶ in the way that their grooves
❸ are facing outwards.
3)
Insert the needles into the needle clamp as
far as they will go.
Tighten needle clamp screws ❷ firmly.
4)
When replacing the needle, check the
clearance provided between the nee-
dle and the blade point of hook. (Refer
to
"8-1. Needle-to-hook relation"
p.105
and
needle guard" p.110
If there is no clearance, the needle
and the hook will be damaged.
Lift latch ❶ and take out the bobbin case and
1)
the bobbin together.
2)
Hold the bobbin case by latch raised, put it
into the shaft in the hook correctly and re-
lease the latch.
– 20 –
"8-3. Adjusting the hook
.)
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