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8. MAINTENANCE AND INSPECTION
BAS-341F,342F
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8. MAINTENANCE AND INSPECTION
CAUTION
Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the foot
switch is depressed by mistake, which could result in injury.
Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not
get into your eyes or onto your skin, otherwise inflammation can result.
Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and
diarrhoea. Keep the oil out of the reach of children.
8-1. Cleaning the shuttle hook
8-2. Lubrication
Note
• Fill the machine with oil when the oil level is down to about one-third full in the oil sight glass.
• If oil is not added and the oil drops below this level, there is the danger that the machine may seize during
operation.
• Be sure to let the machine operate for a while after adding the oil.
• Use only specified Brother oil (Nisseki Mitsubishi Sewing Lube 10N; VG10) for the machine oil.
1936S
1945S
1946S
(5)
1. Pull the shuttle hook cover (1)
forward to open, and then remove
the bobbin case.
2. Open the large shuttle hook set
claw (2) in the direction indicated
by the arrow, and then remove the
large shuttle hook (3) and the inner
shuttle hook (4).
3. Clean all the dust and thread ends
from around the driver (5), the top
of the shuttle hook thread guide
and the shuttle race.
1926S
1927S
1. Fill the arm-side oil tank with oil. 2. Fill the bed-side oil tank with oil.