Singer 628 - Needle-Threader Operations; Needle-Threader Storage and Use

TROUBLE-SHOOTING GUIDE (Cont»d.)
Needle-Threader Storage and Use
(Class 620 Machines Only)
Servicemen should be aware of common customer
mistakes in the handling, use, and storage of the
Needle-Threader attachment. The following instruc¬
tions cover the procedure suggested to users of new
Class 620 Machines, and reflect the most common
causes of damage and misalignment. As such, they
can be of use for trouble-shooting during service
calls.
To prevent damage to and ensure proper alignment
of the Needle-Threader attachment, the procedure
given below should be followed in storing and using
this device.
1. When not in use, the needle-threader should be
stored in the space provided behind the face plate.
2. Before using needle-threader, be sure that presser
foot is lowered, and remains lowered while needle-
threader is in use.
CAUTION: DO NOT raise presser foot while needle-
‘hreader is attached to needle.
2. 'Vhen -eieasing *ne needle-threader : cr use. ao not
;ui! -,ne : ucccr': r, g arm Jut '0 me .err anv mere
--an -ecessorv "o :.ear me awer--nreca - ~ j i as
;. cm o mg-scre w.
4. Attach supporting arm to lower-fhread-guide clamp¬
ing-screw through larger end of machined hole in
arm. Upper and lower guides and needle-threader
hook should now be aligned with needle eye.
5. Using gripper-plate on supporting arm, gently pull
arm forward until hook passes through needle eye,
and guides engage needle shaft. The needle-thread¬
er is now ready tor use.
6. To remove needle-threader from needle, push back
gently on gr :per plate, free thread from hook,
disengage supporting arm from lower-thread-guide
clamping-screw, and carefully swingneedle-thread-
er assembly back up to storage nest.
CAUTION: DO NOT close face plate while needle-
threader is not properly stored.
ATTACH THREAD GENTLY PULL-THREAD
TO HOOK THROUGH NEEDLE EYE
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