Rotor Lock; Chipper Blades Maintenance; Removing The Blades - Echo BEAR CAT CH45540 Owner's Manual

SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE, AND

5.2 ROTOR LOCK

WARNING
The rotor assembly has a lock mechanism. When
working on the rotor assembly, use the lock mechanism
at all times.
Follow the steps below to install the rotor lock:
1. Remove the chipper deflector.
2. Rotate the chipper rotor until the hole on the chipper
paddle is aligned with the hole on the chipper housing
(Figure 5.1).
3. Install a punch or screwdriver into the holes.
BLADE HARDWARE
ACCESS HOLE
ROTOR
LOCK HOLE
MATCHING HOLE
ON ROTOR PADDLE
Figure 5.1, Rotor Lock

5.3 CHIPPER BLADES MAINTENANCE

The chipper blades will eventually become dull, making
chipping difficult and adding extra strain on the machine.
CHECK THE SHARPNESS OF THE BLADES EVERY
5-15 HOURS OF OPERATION AND SHARPEN AS
NEEDED.
Your blades need to be sharpened if:
● Machine vibrates severely when material is fed into
the chipper.
● Chips discharge unevenly or have stringy tails,
especially when chipping green branches.
12
MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
CHIPPER
ROTOR
4.5 INCH CHIPPER
WARNING
Before you sharpen the chipping blades, check for
permanent damage. Replace the blade if:
● There are cracks, broken corners or nicks greater
than 1/8" (see below).
● The base of the cutting edge is worn or has been
re-sharpened so that it no longer extends past the
chipping slot (see below).

5.4 REMOVING THE BLADES

Chipping blades are sharp! Use caution when working
on machine to avoid injury.
1. Remove the chipper deflector from the chipper
housing by removing the two 3/8 × 5-1/2" bolts
securing the discharge cap or optional discharge tube
to the chipper housing. Remove the discharge cap or
optional discharge tube.
2. Install the rotor lock (Section 5.2). The rotor is now
restrained for removing the blades. To access the
remaining blade, remove the punch or screwdriver,
reposition the rotor and return the punch or screwdriver
to the rotor lock hole.
WARNING