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Figure 5-14.-100 pound washer extractor basic parts
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Program Chart
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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