Lower Looper & Chain Looper Automatic Engagement - ELNA 745 Service Manual

LOWER LOOPER & CHAIN LOOPER AUTOMATIC ENGAGEMENT
7. Lower Looper:
Turn handwheel towards you to bring lower looper to its far right position. Press lever "a"
downwards. Turn handwheel towards you again and check if lever "a" returns automatically
to its initial position. If not, loosen screw "h" and insert a washer under the plate "b" to get
the gap 0.5 2.0 as shown in Fig. 12.
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Chain Looper:
Turn handwheel towards you to bring needle bar to its lowerst position. Lift up lever "A" to
disengage chain looper. Turn handwheel towards you again and check if chain looper is
automatically engaged. If not, loosen screw "h" and slide the plate "b" right or left to get the
gap 0.5 2.0mm as shown in Fig. 13.
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Note: If either lower looper or chain looper is set apart from the plate "b" so far or if either of
two touches the plate "b", handwheel is blocked and can not be turned.
Fig.10
h
Washer
b
Fig.12
Lower Looper
a
Chain Looper
Fig.11
h
b
0.5 '2.0
Fig.13
11e
A