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Operator’s Manual

Chipper Shredders

22 Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5

Chipping Knives Sharpening and Replacement

The chipping knives should be sharpened or replaced when

tree limbs require extra force to feed into the chipper cone.

The chipping knives may be sharpened at a 30 degree angle

until the distance between the edge of the blade bevel and

SEE FIGURE 22

To inspect, sharpen, or replace the chipping knives:

1. Turn the engine off and wait for all moving parts to stop.

  

the spark plug.

 .

SEE FIGURE 17 (previous page)

4. Remove the rotor housing by removing the hardware that

secures it to the main housing. SEE FIGURE 18

5. Remove the chipper cone base. Rotate the rotor such that

one of the chipper knives is visible through the cone hole.

SEE FIGURE 20

  

and remove the two socket head cap screws and the

chipper knife (SEE FIGURE 21). Make sure to hold onto

the chipper knife through the cone hole, be aware of the

sharp cutting edge. SEE FIGURE 20

7. Inspect, rotate, sharpen, or replace the chipper knife.

SEE FIGURE 22

8. Reinstall the chipper knife and tighten the socket head

cap screws to 18-20 ft-lb (24-27 N.m.). We recommend the

use of high strength threadlocker on screws.

9. Rotate the rotor 180 degrees and repeat with the other

chipper knife. Reinstall the rotor cover and shredder

hopper when completed.

1/16”

Min

30°

Top View Side View

FIGURE 22 - Chipper Knife Minimum Cutting Edge

FIGURE 20 - Removing the Chipper Cone

WARNING

AMPUTATION HAZARD. TO AVOID SERIOUS INJURY

FROM ACCIDENTAL STARTING, ALWAYS DISCONNECT

THE SPARK PLUG WIRE AND SECURE IT AWAY FROM

THE PLUG WHEN SERVICING THE UNIT.

WARNING

CUTTING HAZARD. TO AVOID SERIOUS INJURY, AVOID

CONTACTING THE SHARP CUTTING EDGES OF THE

CHIPPING KNIVES.

FIGURE 21 - Removing the Chipper Knives

chipper

knife

socket head

cap screw

chipper

knife

chipper

cone base

cone

hole

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 39 40

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