7. ADJUSTMENTS
SL-710A
74
When changing from the normal rotary hook to the rotary hook RP (lubrication-free rotary hook)
1. While referring to the instruction manual, replace the
rotary hook RP and the cap screw.
2. Tighten the lubrication adjustment screw (3) as far as it
will go, and then turn it back the other way about three
full turns.
(At this time, the head (A) of the lubrication adjustment
screw (3) should be almost flush with the edge (B) of
the bed.)
Note: If the sewing machine is used while the
lubrication adjustment screw (3) is in the fully-
tightened position, it will cause oil to leak out
through the gap between the rotary hook shaft (4)
and the bracket (5).
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