Echo CH450H Owners Manual v.2 - Manual (Page 15)

11 4.5 INCH HYDRAULIC CHIPPER
SERVICE & MAINTENANCE
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.
WARNING
1. Lock disk assembly (Section 5.2).
2. Secure a blade to the disk with two hex bolts. Torque
to 120 Ft.-lb. Repeat for the remaining blades.
3. Reinstall the chipper deflector.
5.6 INSTALLING THE BLADES
5.7 SETTING BLADE CLEARANCE
Figure 5.2, Chipper blade and anvil clearance
The chipping blades should clear the chipping anvil, located
directly under the chipper chute, by 1/16".
Removing the chipper chute is not required for setting the
chipping blade clearance. However, removing the chipper
chute can provide better access for measuring the blade
clearance. To adjust the blade clearance, proceed as
follows:
1. Rotate the disk until a chipping blade is even with the
chipping anvil.
2. Measure the amount of clearance between the
chipping blade and chipper anvil from inside the
chipper housing. The distance between the chipping
blade and the anvil should be 1/16" (Figure 5.2).
3. Adjust the anvil by loosening the 5/16" x 5/8" bolts
holding the anvil to the disk cover and sliding the anvil
inward or outward until the desired measurement is
achieved.
4. Torque the bolts to 17 Ft-lbs.
5. Rotate the rotor to ensure the remaining blade clears
the anvil by 1/16".
6. If the chipper chute was removed, reinstall it.
5.8 LUBRICATION
IMPORTANT
Polyurea and lithium-based greases are not compatible.
Mixing the two grease types may lead to premature
failure.
NOTE
Do not over grease bearings. Overfilling can lead to
excessive heat and/or unseating of the seals. Add
grease slowly and under light pressure. Whenever
possible, rotate bearing slowly while lubricating.
50 h
Figure 5.3, Grease the zerk periodically
NOTE
If the chipping anvil edge is damaged or worn unevenly,
remove the three bolts and washers holding the anvil
to the disk cover and use one of the other three edges.
Adjust for correct measurement.
WARNING
It is important to ensure that the minimum gap between
the chipping anvil and ALL chipping blades is 1/16". All
chipping blades should be rotated until even with the
chipping anvil and then measured. Failure to do so can
result in the chipping blades striking the chipping anvil,
causing serious injury or death.
Lubricate the machine periodically with a lithium-based
grease. Extreme working conditions will require more
frequent greasing. Grease the zerk on the bearing every
50 hours of operating time.