Sterlco SMS Series Single Shaft Shredder - Manual (Page 52)

GRN4-605 Chapter 5: Maintenance 52 of 93
3. Put in the cutter holder mounting screws (DIN912 – M8x25 – 12.9) and put some
Loctite on them.
4. Make sure that the cutter holder fits properly.
5. Tighten the cutter mounting screws using a torque wrench.
NOTE: The required torque for the cutter holder mounting screws is 39 Nm
(also see the table under “Working on Cutting Cutters”).
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!
Mounting the Cutters
1. Clean the cutter supporting surface and the hole on the cutter holder.
2. Insert sharp cutter or turn old cutter, and push against the cutter holder surface.
3. Put in the cutter mounting screw (DIN912 – M12x40 – 12.9) and the washer
(DIN433 – 13 – 300HV).
4. Screw in the mounting screws and tighten lightly first.
5. Make sure the cutter fits planar in the seat.
6. Tighten the cutter mounting screws using a torque wrench.
NOTE: The required torque for all cutter mounting screws is 120 Nm (also see
the table under “Working on Cutting Cutters”).
7. Check if the cutting gap is correct and make sure the cutters do not collide
as the rotor turns.
8. Remove tools and other objects from the cutting chamber.
9. Put back screen and fix it.
10. Switch on the shredder for a short time without material, and listen for noises. If
there are unusual noises, determine the cause and eliminate it.
NOTE: The cutting knives, in particular the cutters, should only be sharpened
or replaced in sets. There is a danger of balance error if a combination
of rotor cutters from different cutter sets is used.
Cutters are reversible and have four symmetrical cutting edges. This
makes it possible to turn the cutters and only to sharpen after every
fourth cutter change.