Echo Bear Cat 73554 - Manual (Page 33)

Page 30 Bearcat Chipper Shredder Operator’s Manual
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. Remove the spark plug wire.
2. Remove the belt guard.
3. Slip the drive belt off the pulleys. If necessary, loosen
the engine bolts and tip the engine forward to allow the
belt to slip off the pulley.
4. Inspect pulleys for wear. Replace the pulleys if they are
cracked or worn so that the belt contact area is not
smooth and flat.
5. Place new belt over pulleys. Do not force or pry the belt
over pulleys as this may cause cord breakage. If neces-
sary, loosen engine mounting bolts and tip the engine
forward to allow the belt to be easily placed over the
pulley.
6. Align the engine so the crankshaft is parallel to the rotor
shaft. Tighten engine mounting bolts to 20 ft. lbs. torque.
7. Check pulley alignment. Place a straightedge across the
face of both pulleys to inspect. If necessary, loosen the
set screws on both pulleys and move them so that they
are directly in line. Be sure that the idler pulley contacts
near the center of the belt. Retighten the pulley set
screws.
8. Replace upper and lower belt guards. Allow 1/8 inch
clearance between top of belt and inside of lower belt
guard. make sure all bolts, nuts and fasteners are prop-
erly torqued to 20 ft. lbs.
Service & Maintenance
REMOVING ROTOR
Do not operate machine without proper guards and screens
in place.
1. Loosen and remove the 3/8” carriage bolt securing the
chipper top.
2. Open the chipper top cover exposing the chipper shred-
der compartment and inside of chipper top and dischage
chute.
3. Loosen the bushing bolts holding the drive pulley to
the shaft and remove the pulley.
4. 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 beremoved.
5. Unbolt bearings and lift rotor out of machine.
6. Remove bearings from rotor shaft.
7. Re-install rotor assembly and bearings and tighten bolts
to proper torque.