71020 & 70554 Chipper Shredder Owners Manual Page 17
5.6 CLEANING PLUGGED ROTOR
(TOWABLE MODELS)
1. Stop engine, disengage rotor clutch and allow ma-
chine to come to a complete stop. Remove the spark
plug wire.
2. Remove the discharge screen in place.
3. Clean the debris out of the shredding rotor. Turn the
rotor by hand to be sure it is free to rotate.
4. Replace discharge screen.
5. Replace spark plug wire, restart engine and resume
operation.
5.7 CLEANING PLUGGED ROTOR
(PTO MODELS)
1. Disengage PTO and shutoff tractor engine.
2. Remove the discharge screen.
3. Clean the debris out of the shredding rotor. Turn the
rotor by hand to be sure it is free to rotate.
4. Replace discharge screen.
5. Start tractor, engage PTO and resume operation.
5.8 REMOVING ROTOR
1. Remove the discharge screen, belt guards and the
rotor shaft end cover.
2. Loosen the bushing bolts holding the drive pulley to
the shaft and remove the pulley.
3. Loosen the set screw in the lock collars. Using a
punch and hammer, tap the lock collars in a direction
opposite of normal rotation so that they can be
removed.
4. Loosen the set screw in the center of the rotor
assembly.
5. Remove the two 3/8x2-1/2" bolts running through the
rotor shaft.
6. Using a rubber mallet or other soft hammer, drive the
shaft towards the chipper chute side of the machine.
7. Once the shaft has been removed, the rotor assembly
can be taken from the chamber through the discharge
opening.
8. To ease reinstallation, smooth any divots or marks in
the shaft caused by the set screws. Clean shaft as
much as possible before installing into machine.
5.9 REPLACING DRIVE BELTS (TOW-
ABLE MODELS)
Check the condition of the drive belts annually or every 30
hours of operation, whichever comes first. If the belt is
cracked, frayed or worn, it should be replaced. To replace
the belt, proceed as follows:
1. Depress the foot clutch pedal. Shut off the engine and
remove the spark plug wire.
2. Remove the large belt guard.
3. Remove the inner belt guide from under the drive belt.
4. Disconnect and plug the fuel line from the fuel tank.
Remove the fuel tank from the frame assembly.
5. Adjust for correct belt tension by loosening the four
bolts that mount the engine to the frame and slide the
engine forward as much as possible.
6. Torque engine mount bolts, replace fuel tank and
reconnect fuel line.
7. Install lower belt guide and start the engine to test if
belt is tensioned correctly. If the belt continues to be
loose, it will have to be replaced.
8. Replace large belt guard and resume operation.
5.10 REPLACING DRIVE BELTS (PTO
MODELS)
Check the condition of the drive belts annually or every 30
hours of operation, whichever comes first. If the belt is
cracked, frayed or worn, it should be replaced. To replace
the belt, proceed as follows:
1. Disengage PTO and shut off tractor engine.
2. Remove PTO shaft from tractor and disconnect
machine from 3 pt. hitch.
3. Remove the round shield connected to the belt guard
that covers the PTO shaft by removing the two 5/16"
nuts.
4. Remove the PTO shaft from the chipper/shredder by
loosening the two set screws and pulling the shaft off.
Service and Maintenance
WARNING
Before inspecting or repairing any part of the machine,
shut off the engine and make sure all moving parts
have come to a complete stop.
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