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 TM 55-1905-220-14-9
4-42. WASHER/DRYER - MAINTENANCE INSTRUCTIONS (Continued).
(a)
Timer. The washer timer is the electric control that is set by the user to select the sequence of
operation of the washer unit. It consists of a motor, an escapement and a switching mechanism. The timer
motor drives the escapement through gear reductions. The escapement, in turn, controls the time interval
between timer advances and drives the switching mechanism. The switch mechanism consists of a notched
cam that makes and breaks movable contacts as it rotates in operation. This movement controls the operation
the washing cycle.
(b)
Water Level Switch. The water level switch is a pressure activated switch. The various water
levels are calibrated and sealed by the manufacturer. No adjustment should be made in the field.
(c)
Temperative Selector Switch. This control is used to select the desired water temperature for
washing.
Change 1
4-1063
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