Echo CH45540 Owners Manual v.5 - Manual (Page 14)

4.5 INCH CHIPPER 10
SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
WARNING
1. Remove the chipper deflector from the chipper housing
by removing the two 3/8" x 5-1/2 bolts securing the
discharge cap or optional discharge tube to the chipper
housing and loosening the 5/6" flange nuts on the
weldment bolts. Remove the discharge cap or optional
discharge tube.
2. Install the disk lock (Section 5.2). The disk is now
restrained for removing the blades. To access the
remaining blade, remove the punch or screwdriver,
reposition the disk and return the punch or screwdriver
to the disk lock hole.
3. Remove the two bolts that hold the blade to the disk.
The hardware can be reused. Repeat for remaining
blade. The blades have two edges and can be reversed
one time before sharpening.
4. Inspect blades to see if cracks or nicks are visible. If
cracks are present, replace the blades. Replace the
blade if nicks cannot be removed by sharpening.
When working on the disk assembly, use the lock
mechanism at all times (Figure 5.1). Follow the steps below
to install the disk lock:
1. Remove the chipper deflector.
2. Rotate the chipper disk 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.
CHIPPER
DISK
MATCHING HOLE
ON DISK PADDLE
DISK LOCK
HOLE
NOTE
One of the 3/8" x 5-1/2" bolts from the chipper deflector
can also be used to lock the disk.
5.2 INSTALLING THE DISK LOCK
WARNING
Chipping blades are sharp! Use caution when working
on machine to avoid injury.
5.3 CHIPPER BLADE MAINTENANCE
5.4 REMOVING THE BLADES
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).
NEW
BLADE
CHIPPER
DISC
CHIPPING
SLOT
CHIPPER
DISC
BLADE IS
TOO SHORT,
MUST BE
REPLACED
CHIPPING
SLOT
• 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).
NICK GREATER
THAN 1/8”
CRACK
GREATER
THAN 1/8”
BROKEN
CORNER
Figure 5.1 Disk lock