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Basic Maintenance for
Class CV & EV 900 and
MO250 Machines
The needles are straight, the
speed is fast and their capabilities are limitless.
The Union Special Class CV900
and EV900 machines sew on almost any fabric with almost any sewing thread.
Designed to simplify thread
handling with easy-to-use adjustments, these machines minimize your
downtime when setting up for different garment styles.
The CV900 and EV900 machines
come in many styles to sew a variety of types and weights of garments, and
can be equipped with various attachments for operator comfort and
productivity.
Yet, even the best machines
need regular maintenance to keep productivity at its peak. The following
routine maintenance procedures need to be performed at least twice yearly
or every 2,000 operating hours.
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Drain the old oil from the
machine. To do this, remove the plug screw,
Figure 1, located on the right end of the machine below and in
front of the hand wheel. Tip the machine slightly so that all of the oil
will drain out.
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Remove the oil pan from the
machine. To do this, remove the four nuts located in the comers of the oil
pan, Figure 2. Using a clean rag,
remove the excess oil and any contaminants that may be found in the pan
area.
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Clean the filter inside the
pan, Figure 3, removing any lint or
contaminants. If the filter is worn, remove
the filter holder and replace the filter.
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Check the oil pan gasket to
insure that it is not cracked, pinched or deteriorating from dry rot and
replace if necessary, Figure 4. After
the above areas have been cleaned replace the oil pan.
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