JUKI MO-6000S series Engineer's Manual page 19

Adjustment Procedures
1) Fit upper looper guide support gauge 1 over gauge fixing pin
3 which has been driven in frame 2 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 installin upper looper guide support 4, press it against
the gauge while keeping the upper looper guide support into
close contact with the frame guide surface, then tighten the
screws.
(Caution) Refer to "4- (4) -1) - 7 Various sealants" for the
various sealants.
Results of Improper Adjustment
™ 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.
™ If the upper looper guide has
been inaccurately positioned
laterally, it will cause stitch
skipping, or contact with the
looper.
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