DR Power 16.50 Pro - Manual (Page 41)

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8. Remove the dull or damaged Knife and visually inspect the Flywheel Slot and Knife mounting area
and be sure they are clean and that the replacement Knife will be able to mount flush against the
Flywheel.
9. Install a new or sharpened Knife as shown with the Knife edge facing up and towards you and finger
tighten the Allen screws and Lock Nuts (use the new hardware supplied with a new Knife kit) to hold
the Knife to the Flywheel.
10. Using a 7/32" Allen wrench and a 9/16" socket, tighten the center Screw and Locknut, then tighten
the outer Screw and Locknut, and finally tighten the inner Screw and Locknut.
11. Double-check that all three Locknuts on the Allen Screws are tight.
12. Reinstall the two Access Covers.
13. Replace the Belt Guard.
14. Check and if needed adjust the gap between the Knife and Wear Plate (See “Checking and Adjusting
the Knife to Wear Plate Gap” in this Chapter).
Removing and Replacing the Wear Plate
Tools Needed:
• 7/16" Wrench
1. Remove the Hopper (See “Inspecting the Chipper
Knife and Wear Plate” in this Chapter)
2. Remove the three Locknuts and Carriage Bolts that
attach the Wear Plate to the Chipper Assembly with a
7/16" wrench and then remove the Wear Plate (Figure
38).
3. Install the new Wear Plate and secure with the three
Carriage Bolts and Locknuts.
NOTE: The Gap between the Knife and Wear Plate must be
adjusted whenever the Wear Plate is removed. See the
following instructions.
Carriage Bolt
and Locknut
Figure 38
Wear
Plate
Chipper
Knife
IF THE FLYWHEEL SURFACE IS NOT CLEANED PROPERLY AND THE CHIPPER KNIFE IS NOT MOUNTED
FLUSH ON THE FLYWHEEL, THE KNIFE COULD CRACK WHEN THE HARDWARE IS TIGHTENED.