9. MAINTENANCE AND INSPECTION
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KE-434C,435C
9. MAINTENANCE AND INSPECTION
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.
Wait until the motor has cooled down before cleaning the air holes.
The motor may be hot immediately after it has been used, and it may cause burns if touched.
9-1. Checking the needle
Always check that the tip of the needle is not broken and
also the needle is not bent before starting sewing.
9-2. Cleaning the rotary hook
1. Pull the shuttle race cover toward you 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 body (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.
0121Q
0122Q
2548Q
2549Q
