– 11 –
1) Fit upper looper guide support gauge over gauge fixing pin which
has been driven in frame and secure the gauge with an O ring.
Then position the gauge taking the marker dot engraved on it or the
chamfering direction as reference.
2) When installing upper looper guide support , press it against the
gauge while keeping the upper looper guide support into close con-
tact with the frame guide surface, then tighten the screws.
(Caution) Refer to “4- (4) -1) –
7
Various sealantsî for the various
sealants.
o If the upper looper guide has
improperly positioned vertically,
it will cause oil leakage or
disturbed path of the upper
looper with resultant stitch
skipping.
o If the upper looper guide has
been inaccurately positioned lat-
erally, it will cause stitch skipping,
or contact with the looper.
Adjustment Procedure Results of Improper Adjustment
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