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Assessment procedure:
1- visual inspection to establish degree of wear;
2- check teeth rotate in their seats, as shown in fig. 1 below.
Following the assessment, replace any broken tools or those showing excessive wear (as outlined in
para. 10.3) or clean the seats of the teeth that are completely jammed, as explained below.
1- remove the tooth that does not turn (see para.10.3);
Tooth cleaning:
2- clean the shank of the tooth and the seat;
3- lubricate with diesel fuel;
4- refit the tooth in its seat.
If the tooth only turns slightly, it can be lubricated with diesel fuel without being removed from its seat.
To facilitate tooth rotation in the seat, and therefore lengthen the tooth’s working life, we
recommend you brush diesel fuel onto the rear of the tooth at the end of the working day, making
sure the oil seeps in between the tooth and the seat.
fig. 1
DO NOT ROTATE THE CUTTER DRUM WITH NEW OR JUST LUBRICATED TEETH WITHOUT
APPLYING IT TO THE GROUND, AS THE TEETH COULD COME OUT OF THEIR SEATS AS A
RESULT OF THE CENTRIFUGAL FORCE.
TO AVOID DAMAGING THE TOOTH HOLDERS, NEVER WORK WITH EXTREMELY WORN
AND/OR JAMMED TEETH.
Summary of Contents for PL 4520
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