Veris Technologies 3100 Soil EC Mapping System (1997-2008 floppy disk drive 1.76G) - Operating Instructions - Manual (Page 9)

Veris Technologies
Pub. #OM 1CM02-1
9
Pivot grease zerks
Rachet jack --
40 hour intervals
grease zerks
Electrode coulters
Pivot -- In all but the most extremely rocky conditions, the coulter electrodes should
not flex in the field, thus minimal movement will be realized at the pivot.
80-hour intervals should be sufficient.