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8. MAINTENANCE
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57
KE-430F, BE-438F
8. MAINTENANCE
CAUTION
Turn off the power switch before carrying out cleaning, otherwise the machine may operate if the foot switch is
pressed 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 rotary hook
1. Pull the shuttle race cover downward to open it, and then
remove the bobbin case.
2. Open the setting claw (1) in the direction indicated by the
arrow, and then remove the shuttle race base (2) and the
shuttle hook (3).
3. Clean all the dust and thread ends from around the driver
(4), the top of the rotary hook thread guide and the
shuttle race.
4482Q
4461Q
4462Q