Brother PR-620 Operation Manual page 81

OTHER BASIC PROCEDURES
As shown in the illustration, press 1 to extend
the needle-mounting clamp 2. Attach the
clamp to the needle, and then release the
pressed area to clamp the needle. To unclamp
the needle, press 1 again.
4 While holding the needle in place with your
left hand, tighten the needle set screw.
Use the allen screw driver to turn the needle
set screw clockwise.
CAUTION
●
Be sure to insert the needle all the way
up until it touches the needle bar stopper
and securely tighten the needle set screw
with the allen screw driver, otherwise the
needle may break or the machine may be
damaged.
●
If the needle is not fully inserted, the
hook of the automatic needle-threading
mechanism will not pass through the eye
of the needle during automatic needle
threading, and the hook may bend or the
needle cannot be threaded.
●
If the hook of the automatic needle-
threading mechanism is bent or
damaged, contact your authorized
retailer.
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