Page 273 - Electrician - TT (Volume 2)

ELECTRICIAN - CITS

The conventional type with mangle wringer for drying: The conventional washing machines are relatively
simple in operation and construction. The washing cycle in such a type of machine would consist of the user filling
the central tub with water up to the water level mark. Soap and bleach are added.

Depending upon the types of the clothes to be washed the ‘ON’ time or the wash time of the machine is set and
then ‘the machine is switched ‘ON’. Most machines have the agitator directly driven without any intermediate
gears (Fig 4).

Fig 3

Fig 4

The wash is stopped by the timer setting on the machine. The agitator is brought to a standstill and the drain
pump is operated or the valve for gravity draining is activated. For rinsing the clothes the machine is switched ‘ON’
for a time duration such that all the detergent or soap is removed off the clothes. This cycle is called the rinse
cycle. The clothes are then put through the mangle wringer to press and roll out all the water from the clothes.
Some type washing machines having heater, is generally immersion rod type which is permanently fixed in the
bottom of the washing machine. The purpose is to produce warm water for loosening stubborn dirt particles of
the clothes for quick cleaning. In these types generally heater is not repairable, once found defective it has to be
replaced. Fig 5 shows the connection diagram of simple washing machine with heater .

Fig 5

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CITS : Power - Electrician & Wireman - Lesson 101-103