hour for a selected number of minutes. Any hour or hours may be omitted 

 from the recording program by removing the knurled screws from the 

 programmer dial . 



c. Maintenance 



The recording station will require servicing at regular in- 

 tervals to change the strip-chart recorder-paper and fill the recorder 

 inkwell. Also the programmer should be checked for timing accuracy. 



The wave-sensing unit should be raised and inspected at 6-month 

 intervals to see whether it has been fouled by sea growth, and whether 

 the entire gage has settled into the ocean bottom and bellows operation 

 restricted. 



77 



