Safety & Operating Instructions
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25
Removing and Replacing the Chipper Knife
Tools Needed:
•
7/16" Wrench
•
1/2" Socket with extension
•
3/16" Allen wrench
•
Awl or Sharp Tool
•
Gloves
1.
Remove the Belt Cover (see “Removing, Replacing and Adjusting the
Drive Belt” in this Chapter) and Shredder Hopper (see “VISUAL inspection
of the Wear Plate (every 8-10 hours)” in this Chapter).
2.
Loosen the Locknuts that secure the rear Access Cover with a 7/16"
Wrench (
Figure 35
). Move the Cover over to align the larger portion of the
hole with the Locknuts and remove the Cover
.
3.
Rotate the Flywheel using a stick until the three countersunk Allen Screws
(Figure 36)
and Locknuts
(Figure 37)
attaching the Knife to the Flywheel
are visible through the Access Openings.
4.
Clean out the Allen Screws with an Awl or Sharp Tool
(Figure 36)
.
5.
Insert a 3/16” Allen Wrench into the head of a screw
.
6.
While holding the Allen Wrench, remove the Locknut using a 1/2"
socket
(Figure 37
).
7.
Repeat Steps 5 and 6 for the remaining two Allen Screws.
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.
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.
9.
Install a new or sharpened Knife as shown with the Knife edge facing
down and towards you
(Figure 37)
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 3/16" Allen wrench and a 1/2" socket with extension, 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.
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
Figure 34
Figure 35
Figure 36
Figure 37
1.
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).
2.
Install the new Wear Plate and secure with the three Carriage Bolts and Locknuts.
3.
Check the Chipper Knife to Wear Plate gap (see that section in this chapter).
Cover
Chipper Knife (Sharp edge
facing down and towards you)
Allen Screws
Wear Plate
Carriage Bolt
And Locknut