Echo Bear Cat 70520 - Manual (Page 17)

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S E C T I O N 3
5. Replace spark plug wire, restart engine and resume
operation.
3.3.2 Cleaning Plugged Rotor (PTO
Models
Do not operate machine without proper guards and
screens in place.
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.
3.3.3 Removing Rotor
Do not operate machine without proper guards and
screens in place.
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 direc-
tion 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 dis-
charge 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.
3.3.4 Replacing Drive Belts (Towable
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.(4-5/26" Bolts)
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 the mount the engine to the frame and slidding
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.
9. To replace the drive belt,
1. Remove the large belt guard and lower belt guide.
2. Lift belt idler pulley off the belt and remove the
belt from the pulleys.
3. Install a new belt onto the pulleys and lower belt
idler. Check belt tension before start-up. Install the
lower belt guide.
4. Install the large belt guard and resume oepration.
3.3.5 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.