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Maintenance
4
4.1
4.2
4.3
Machine Head
Cleaning
Oil Change
and Filter
Cleaning
Safety
Inspection
17
Ultra High Speed Overedge and Safety Stitch Machine | Instruction Manual and Parts List
Clean the machine periodically
with a soft and dry cloth to remove
the excess of dust on the machine
head. Do not use any kind of
lacquer thinner to wipe the surface.
When Machine is running, oil will
be sprayed into the oil window. If
no oil sprayed, please check oil
level (see topic 3.3)
If the machine was idle for a long
time, oil the top of the needle
holder, guides and looper guides
before resuming the operation.
The oil should be changed every
four months. To replace the oil,
follow the instructions of topic 3.3.
The oil filter should be cleaned
every month or replaced by a new
one as necessary. To clean or
replace the oil filter, follow the
instructions of topic 3.3.
Frequently check if all safety
devices are properly installed and
adjusted.
Check all screws that fix and hold
the machine head that should be
properly tight.
Check and be sure the V-belt is not
excessively worn out and see that
it has the proper tension (Except
321K)
Check and be sure there is no
motor overheating and be sure that
the cable and electric connector are
not damaged.
(Operating)
OK!
Figure 28
Figure 29