Echo 76624 Owners Manual v.4 - Manual (Page 20)

16 6 INCH CHIPPER
SERVICE & MAINTENANCE
BEFORE INSPECTINg OR SERVICINg ANy PART OF THIS MACHINE, SHuT OFF POWER SOuRCE,
DISENgAgE THE HyDRAulICS, AND MAKE SuRE All MOVINg PARTS HAVE COME TO A COMPlETE STOP.
WaRNING
5.2 CHIppER bLaDE maINTENaNCE
Access cover on top of feed roller
Retaining bolts on main frame access cover
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).
NICK GREATER
THAN 1/8”
CRACK
GREATER
THAN 1/8”
BROKEN
CORNER
• 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).
NEW
BLADE
CHIPPER
DISC
CHIPPING
SLOT
CHIPPER
DISC
BLADE IS
TOO SHORT,
MUST BE
REPLACED
CHIPPING
SLOT
WaRNING
Chipping blades are sharp! use caution when working
on machine to avoid injury.
5.3 REmovING THE bLaDES
Remove the two 3/8" retaining bolts on the access 1.
cover.
tilt access cover open to allow access to rotor. Rotate
2.
the rotor so that the bolts holding the blade in place are
accessible. To remove the inner blade, open the access
cover on top of the feed roller.
Remove the two nuts and cap screws holding the blade
3.
to the rotor. the blades have two edges and can be
reversed one time before sharpening.