Echo CH5653 Owners Manual v.1 - Manual (Page 17)

5 INCH CHIPPER 13
ENGLISH
SERVICE & MAINTENANCE
WARNING
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE AND MAKE SURE
ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
To remove the chipper blades:
1. Remove the two 3/8" locking nuts that hold the access
cover (see Figure 5.1) to the main frame assembly.
5.2 chipper BlaDe mainTenance
warninG
The chipping blades are sharp! use care when
working on machine to avoid injury.
Figure 5.2, Locking Pin securing rotor in place
Figure 5.1, Rotor access cover
5.3 removinG The BlaDes
NICK GREATER
THAN 1/8”
CRACK
GREATER
THAN 1/8”
BROKEN
CORNER
CHIPPING
SLOT
NEW
BLADE
CHIPPER
DISC
BLADE IS
TOO SHORT,
MUST BE
REPLACED
CHIPPER
DISC
CHIPPING
SLOT
2. Tilt access cover over to allow rotor access. Rotate
the rotor so that the bolts holding a chipping blade are
most accessible and lock rotor in place with lock pin.
Figure 5.2
3. Remove the two 5/16" bolts holding the chipper blade.
Repeat for all four blades. The four chipping blades
have two edges per blade and can be reversed one time
each before sharpening. If both sides have not been
used, remove and reverse the chipping blades.
4. Reinstall chipping blades and torque to 25 ft-lbs.
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.
• Small diameter branches do not self-feed.
• Chips discharge unevenly or have stringy tails,
especially when chipping green branches.
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).