JUKI MF-7800D Series, Руководство инженера

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1. Inspection and replacement
Loosen setscrews in the oil filter cap and remove oil filter cap .
Draw out oil filter to inspect it. When it is clogged with dust, replace
it with a new one.
After the replacement, fix oil filter cap with setscrews in the oil
filter cap.
(Caution) When removing the oil filter cap , lubricating oil
collected in oil filter will leak out. So, be careful.
2. Oil circulation identification
(1) In case the oil does not come out from oil circulation identification
window even when oil filter is replaced with a new one, remove
four setscrews in the oil pan, remove oil pan , and tilt the
machine head to the rear up to the position where pipe connecting
joint screw can be removed.
(2) Oil sucked up from gear pump passes oil pipe and enters oil
filter from pipe connecting joint screw . When the lubrication oil
does not rise to oil circulation identification window , The hole in
pipe connecting joint screw may be clogged with dust. So, check
it.
(Caution) When there is any foreign material in oil pan , remove
it.
o In case oil cannot be observed
from oil circulation identification
window even when the sew-
ing speed is 2,500 rpm or over,
the machine will be in danger of
seizure if the operation is contin-
ued.
Adjustment Procedure
Results of Improper Adjustment