Operator's Manual

26
Cutting Blades
Among the most critical elements of the Stump Grinder is the cutting blades. It is also the most
subject to damage and wear. In the course of grinding stumps it not only makes contact with the
wood, but also encounters numerous abrasives and objects in the stump’s environment, such as
dirt, stones, and occasionally a large rock or buried scrap.
The wear and loss of cutting teeth can significantly impair the efficiency and performance of the
stump grinder. Therefore, it is important to make frequent checks of the condition of all of the
cutting teeth and replace any damaged or worn blade sections.
Replacing Cutting Blades
1. Clean all dirt from the cutting blade and
mounting flanges.
2. Remove the two bolts that hold each cutting
blade section. Use care not to let a section drop
and chip when they become loose.
3. Check each section for cracks. Replace blade
section if it is cracked or has missing or worn
teeth.
4. When replacing cutting blade sections, make
sure blade section is placed in correct
alignment with blade rotation.
5. Insert blade section between the blade
mounting flanges.
6. Slide bolt through one side of flange, and
through flange on other side. Install lock
washer and nut on each bolt.
7. Tighten securely. Torque to 27-33 ft-lb (37-45
N-m).