Replacing The Blades - Tar River BDR 210 Original User Manual

7.2.

Replacing the blades:

The cutting blades must be replaced in compliance with the specific safety rules:
1. Use only the original and functional parts for the cutting unit.
2. Each time the replacement must include the full set. You must remember about the uniform distribution of
the rotating masses, to ensure the uniform wear of the blades.
3. Check the condition of the related components: holder, knife. Replace them with new ones if any damage
occurs.
4. When tightening bolted joints observe the values in Table 3, to ensure appropriate tightening torque of screws
and nuts.
Worn out or damaged elements must be obligatorily replaced with new ones.
Working with damaged elements of the working disc, holders or blades, is strictly
prohibited.
The replacement or turning of a blade must be done with the special wrench, according to Fig. 22. Insert the
wrench between the working disc and holder in such a way that the edge of the wrench is placed above the
blade's holder.
Loosen up the holder up to the point, when the blade can be removed.
After checking the blades and holders, install blades in the same spot or in the adjacent disc (rotating in the
opposite direction), under condition that they are not damaged, or replace them with new ones, then release
Inspection of the blades should be performed every time before you
start working and after each instance of hitting an obstacle, e.g. stone,
wood, metal. It is mandatory to wear protective gloves.
Figure 9 Replacing blades:
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