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9.
Rotate the Rotor Assembly using a Stick until the three Allen Screws
attaching the Knife to the Rotor are visible through the Access Opening
(
Figure 35
).
10.
Clean out the heads of the Allen Screws with an Awl or Sharp Tool.
11.
Insert a 3/16" Allen Wrench into the head of the Allen Screw and remove
the Lock Nut using a 1/2" Wrench (
Figure 36
).
12.
Repeat Step 11 for the remaining two Allen Screws and Lock Nuts.
13.
Remove the dull or damaged Knife and visually inspect the Rotor Slot and
Knife mounting area to be sure they are clean. Metal burrs may need filing
so that the replacement Knife will be able to mount flush against the Rotor.
14.
Install a new or sharpened Knife and finger tighten the Allen Screws and
Lock Nuts that hold the Knife to the Rotor.
Note:
If installing a new Chipper Knife, the new Knife will come with mounting
hardware, discard the used hardware.
15.
Tighten the center Allen Screw and Lock Nut first, then tighten the outer
Screw, and finally tighten the inner Screw using a 3/16" Allen Wrench and
1/2" Wrench.
16.
Double-check all three Screws and Lock Nuts for tightness one more time.
17.
Reinstall the Knife Access Plate (
Figure 34
).
18.
Reposition the Screen and reinstall the Upper Screen Retaining Bolt and
Locknut. Tighten the Upper and Lower Screen Bolts
(Figure 33)
.
19.
Reposition the Housing Top Plate and secure Bolt and Lock Nut
(Figure
32)
.
20.
Tighten the Lower and Upper Scroll Bolts.
21.
Check the gap between the Knife and Wear Plate and adjust if required per
the instructions described in “Check and Adjusting the Knife to Wear Plate Gap”.
22.
Re-connect the Negative Battery Terminal Wire and Spark Plug Wires.
Figure 35
Allen Screw
Head
Access
Opening
Chipper
Knife
Figure 36
Lock Nut and
Allen Screw
Knife
Slot
Rotor
