•Check engine oil level before each use as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully.
•Clean air cleaner every 25 hours under normal conditions or once a season. Clean every few hours under extremely dusty conditions. To service the air cleaner, refer to the separate engine manual packed with your unit.
•The spark plug should be cleaned and the gap reset once a season. Check engine manual for correct plug type and gap specifications.
Removing The Flail Screen
If the discharge area becomes clogged, remove the flail screen and clean area as follows:
•Stop the engine and make certain the chipper shredder has come to a complete stop.
•Disconnect spark plug wire from spark plug and ground against the engine.
•Remove the bag and two wing knobs on each side of the discharge chute and lift the discharge chute up to keep it out of the way. See Figure 9.
Discharge |
Chute |
Hairpin |
Clips |
Wing Knobs |
Figure 9
•Remove the two hairpin clips from each clevis pin which extend through the housing and remove the pins. See Figure 9.
•Remove the flail screen from inside the housing and clean the screen by scraping or washing with water.
•Reinstall the screen, making certain to reassemble the flail screen with the curve side down.
•Reattach the discharge chute with the hardware previously removed and connect the bag (if equipped) to unit.
Sharpening Or Replacing Chipper Blades
•Disconnect the spark plug wire and ground against the engine.
•Remove the flail screen as instructed in the previous section.
•Remove the chipper chute by removing three hex nuts and washers.
Models 462 or 465
•Remove the chipper chute support brace from the frame by removing the hex bolts.
All Models
•Rotate the impeller assembly by hand until you locate one of the two chipper blades in the chipper chute opening.
•Remove the blade by removing the internal hex screws, lock washers and hex nuts which secure it to the impeller. Retain the hardware. See Figure 10.
Lock Washer |
& Nut |
Internal Hex |
Screw |
Chipper Blade |
Impeller |
Figure 10
NOTE: Use a 3/16” hex key (Allen) wrench on the outside of the blade and a 1/2” box (or socket) wrench on the inside of the impeller. Hold the Allen wrench stationary and rotate the box (or socket) wrench to loosen the nut.
•Install a replacement blade (Part No.
IMPORTANT: When sharpening the blade, protect hands by using gloves. Follow the original angle of grind and make sure to remove an equal amount from each blade.
•To replace the other blade, rotate the impeller to expose the second blade and repeat the steps above.
NOTE: Make certain blades are reassembled with the sharp edge facing upward. Torque hardware to 250 - 300 in. lbs.
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