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BJ5-615 Chapter 5: Maintenance 49 of 85
WARNING! Danger of cutting caused by sharp cutters at all times—even when rotor is at
standstill. Serious Injury especially to the hands and fingers can occur. Wear protective gloves!
Setting the Cutting Knives
Cutters for the SMS series shredder do not have to be adjusted. All adjustments have to
be done with the bed cutters. To simplify cutter setting and shorten standstill periods
when replacing cutters, bed cutters have 4 adjusting screws, 2 each for pushing and
pulling the cutter. Having several cutter sets helps to avoid standstill periods. Correct
and careful setting of the gap between the cutters and bed knives (cutting gap) is
important for productive capacity of the shredder. Factors for the size of the cutter gap
are the size of the rotor, the design of the rotor, and the material to be ground.
1. Remove old knives (see “dismounting the bed knives”).
2. Insert sharp cutter or turn old cutter.
3. Put in the cutter adjusting screws and adjust them roughly
4. Put in the cutter mounting screws (DIN912 – M12x55 – 12.9) and tighten
lightly first
5. Adjust the gap between cutters and bed knife to 0.8-1.0 mm using a
calibre gauge.
6. Tighten the cutter mounting screws using a torque wrench.
1
2
6
5
3
4
7
(1) Bed knife
(2) Knife mounting screws
(3) Knife holder
(4) Cover plates
(5) Knife adjusting screw for
pushing
(6) Knife adjusting screw for
pulling
(7) Cover plate mounting
screws