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Basic Maintenance For
Class 53100 Machines
The Union Special class
53100 machines are single needle zigzag 2 thread 404 stitch type machines.
These machines come in various styles to do a variety of operations, such
as attaching pre-made waistbands (Ro-Cap) lining to the waistbands of
men's dress and casual slacks, attaching lace and trim to nightgowns,
slips, panties and similar garments, and hemming panels on two way stretch
foundation garments.
Routine maintenance should
be performed on this machine and all machines to keep operating in tip-top
condition. The following maintenance should be performed twice per year or
after 2000 operating hours.
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Drain old oil from the
machine.
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Loosen and remove the feed
roller from the universal joint, disconnect the clutch assembly from the
clutch drive connecting rod, remove the cloth plate with clutch attached,
and remove the front, end and back oil shields from the machine. This is
necessary so that this area can be thoroughly cleaned. Remove all
lint, threads and other contaminants from this area using a rag, brush or
compressed air. (Figure 2)
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Remove the oil reservoir
covers and clutch drive mechanism from the machine and use a rag to remove
excess oil and contaminants that could be in the oil reservoir chamber,
also replace the gaskets if they are cracked, torn or have dry rot.
(Figure 3)
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Check for left to right
shake in the crankshaft and remove any excess movement, also inspect the
cam drive gear for wear. The machine should run freely with no shake or
binds. (Figure 4)
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Check for left to right
shake in the feed rocker and for excessive shake in the feed mechanism.
Replace any worn parts as necessary. This too should move freely without
shake or binds. (Figure 5)
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