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B
A
4. PREPARATION OF THE SEWING MACHINE
4-1. Lubrication
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
1) Check that the place between lower line
B and
upper line A is lled with oil. Fill there with oil
using the oiler supplied with the machine as
accessories when oil is short.
1. Do not lubricate to the places other than the oil tank and the hook of Caution 2 below.
Trouble of components will be caused.
2. When using the sewing machine for the rst time or after an extended period of disuse,
use the machine after lubricating a small amount of oil to the hook portion. (For remov-
ing the shuttle, see
"III-1-1. Adjusting the needle-to-shuttle relation" p.115
.)
2) Apply one drop of oil to the hook race
part to
spread on it.
The oil tank which is lled with oil is only for lubricating to the hook portion. It is possible
to reduce the oil amount when the number of rotation used is low and the oil amount in the
hook portion is excessive. (Refer to "III-1-9. Amount of oil supplied to the hook" p.125 .)
4-2. Attaching the needle
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
Loosen setscrew
and hold needle with the long
groove facing toward you. Then fully insert it into the
hole in the needle bar, and tighten setscrew
.
When tightening setscrew
, be sure
to use the minus screwdriver (Part No.
: 12347308) supplied as accessories.
Allowable difference in count number
between the right and left needles is
two or less.
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