Maintenance And Inspection; Cleaning The Rotary Hook - Brother LK3-B434E MKII Instruction Manual

9. MAINTENANCE AND INSPECTION

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.

9-1. Cleaning the rotary hook

q
r
CAUTION
1. Pull the shuttle race cover toward you to open it,
and then remove the bobbin case.
2. Open the setting claw q in the direction indicated
by the arrow, and then remove the shuttle race
body w and the shuttle hook e.
w
e
3. Clean all the dust and thread ends from around
the driver r, the top of the rotary hook thread
guide and the shuttle race.
LK3-B434E Mark II
9. MAINTENANCE AND INSPECTION
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