OPERATION UNDER UNUSUAL CONDITIONS
This section covers the operating instructions, in addition to those previously covered, that are necessary for
the components of the clothing repair shop to function properly under unusual conditions, such as in extreme
heat and cold and in dusty and sandy areas.
OPERATION IN EXTREME HEAT AND COLD AREAS .
Extremes of heat and cold have little or no effect upon the operation of the clothing repair shop. Extremes of
humidity require the sewing machines to be lubricated (Chapter 3, Section I) more frequently because even
ordinary humidity will cause the machines to rust or to corrode unless they are kept thoroughly oiled. Also,
extremes of humidity will cause the thread to deteriorate and break easily during operation. All possible
precautions should be taken to keep the thread dry.
OPERATION IN SANDY AND DUSTY AREAS.
In extremely sandy and dusty areas, the working parts of the sewing machines will require more frequent
cleaning and lubrication (Chapter 3, Section I). Be sure to remove all sand or grit from the material to be
stitched; sand or grit will work into the parts of the sewing machines and cause unnecessary wear and possible
damage to the sewing machines.