MAINTENANCE
ROTOR KNIFE SHARPENING
The rotor knives must be sharpened to within 0.003" (0.076 mm) of each other. Greater dimensional variations prevent the proper setting of the knife gap and may create other serious complications.
Grinding the cutting edge until it is free of nicks can be wasteful. It is not harmful to allow small nicks to remain in the cutting edge
.
WARNING
Do not install rotor knives, which are smaller than the minimum dimension shown because the fasteners, which secure these knives will interfere with the cutting circle. The rotor will not be able to rotate and the bed knives will be damaged.
It is important to note that the minimum dimensions given for the rotor knife and bed knife cannot be combined simultaneously to produce a cutting combination. The grinding charts shown below and on the following page indicate the rotor knife and bed knife combinations that will work for each type of rotor knife.
EXAMPLE: A keen edge rotor knife with 4.200 inch
"A " dimension will work only with bed knives which have "D" dimensions of 0.790" or greater.
NOTE: Replacement knife sets and knife re sharpening services are available from Cumberland Engineering. Contact the Customer Service Department at
SECTION 6-14
Knife Sharpening
92
