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direction until the cylinder door is lined up with
the outer shell door.
The programmer is illustrated in figure 5-16
and lists all major controls and indicators. The
drain indicator and switch open or close the drain
and indicate when it is in use. Depress the cold
or hot water indicators and switches to add cold
or hot water. A light on the panel indicates when
the programmer is in use. The master and timer
indicator lights are used in conjunction with the
operation of the timer. Once these two switches
are energized, the timer wheel begins to move. The
wash indicator light is also used in conjunction
with the master switch for operating the machine
in the manual mode. The steam indicator and
switch are used to emit steam to the machine in
the manual mode or indicate steam is being added
by the light being lit during the automatic mode.
The signal indicator light and switch light up and
sound a bell when the automatic cycle is complete
to alert laundry personnel. The extract indicator
light and switch are used to energize the extract
motor during the manual mode and light up when
extract is being used during the automatic mode.
A microswitch is installed inside the pro-
grammer to protect the user. Once the door to
the programmer is opened, the microswitch pops
out and de-energizes the circuit to prevent
electrical shock. The drum control disk is used
to manually turn the program wheel around.
As you can see there are several controls,
however, if you run the machine automatically
the way it was intended, you will never have to
use most of them.
DESCRIPTION OF THE
PROGRAMMER
The operation of the programmer is controlled
by energizing the control switch on the control
panel and then energizing the master and timer
switch on the programmer. (See fig. 5-16.)
A program chart is cut to conform with Navy
wash formulas and is installed on the control disk
wheel inside the programmer. Also inside the
programmer are fingers that drop into grooves
that were cut in the program chart. Once these
fingers come in contact with the metal on the disk,
they energize that particular operation. The disk
Figure 5-16.—Layout of washer extractor programmer.
5-22
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