Echo Bear Cat 70385 - Manual (Page 40)

Page 34 Bear Cat Chipper Shredder Operator’s Manual
SETTING CHIPPING BLADE CLEAR-
ANCE
The chipping blades should clear the chipper block located
directly opposite the chipper chute intake by 1/16 inch to 1/
8 inch. To adjust the blade clearance, proceed as follows:
1. Loosen the set screws holding the lock collars on the
2-bolt flange bearings.
2. Use a punch and hammer to tap the lock collars di-
rectly opposite of normal rotation.On the front side
tap punch in a CW rotation. On the rear side tap
punch in a CCW rotation
3. Using a rubber mallet tap the end of the rotor shaft to
obtain 1/16” to 1/8” of an inch clearance. Rotate the
rotor and check the clearance on all chipping blades.
4. Once clearance has been set, the lock collars must be
replaced and retightened. Using a punch and a ham-
mer, rotate the lock collars in the direction of shaft rota-
tion (i.e. counterclockwise on the rear bearing and
clockwise on the front bearing) and "set" them with
a positive hammer tap. Tighten the lock collar set
screws.
5. Loosen the set screws holding the belt pulley on the
rotor shaft. Move the pulley on the shaft so it is aligned
with the engine drive pulley. The pulley should be moved
the same amount the rotor was moved, only in the op-
posite direction.
6. Insure the pulley drive key is completely seated under
the pulley and tighten the set screws.
7. Check pulley alignment by laying a straightedge across
the pulley faces. Pulley faces should line up. If not,
repeat steps 9 and 10 until the pulley is lined up.
Fig. #43 lock collar
To prevent personal injury or property damage: Shut off
engine, disconnect spark plug wire, remove ignition key
(if applicable), and make sure that all moving parts have
come to a complete stop, before servicing, adjusting or
repairing.
The chipping blades are sharp! Use care when working
on machine to avoid injury.
WARNING
Service & Maintenance