Echo CH5540 Owners Manual v.1 - Manual (Page 17)

5 INCH PTO 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.
5.6 aDJusTInG/replaCInG DrIve BelT
1. Disengage PTO and shut tractor engine off.
2. Remove belt guard.
3. Remove idler pulley by removing its 1/2 x 4-1/2" bolt,
spacers, washer and nut. Take the drive belt off the
pulleys (Figure 5.4)
4. Install the new belts and reinstall idler pulley.
5. Check pulley alignment with a straight edge and adjust
if needed.
6. Check belt tension and adjust if needed. The belt
deflection at the center of the belt should be 7/16" when
a 20 lb. load is placed against it (see Figure 5.5).
7. Reinstall belt guard.
8. Start tractor engine and engage PTO drive clutch (see
tractor owner's manual). Increase engine speed to rated
PTO RPM. Test unit and adjust pulleys if needed.
Figure 5.4, PTO model drive belts
To adjust the Chipping anvil:
1. lift rotor access cover and expose rotor. loosen
the two 1/2" bolts that hold the chipper anvil to the
frame.
2. Measure the amount of clearance between chipping
blade and chipping anvil from inside of housing.
3. Adjust inward or outward to desired measurement.
5.5 seTTInG THe BlaDe ClearanCe
Figure 5.3, Chipping anvil location
4. use short grinding times and cool with water or some
type of liquid coolant.
5. Remove an equal amount off each blade to maintain
rotor balance.
6. Small imperfections such as nicks and burrs on
the flat side of the blade will not affect the chipping
performance of the machine.
7. For blades that have been repeatedly sharpened,
ensure that the sharpened surface extends past the
chipping slot opening. If it does not extend past the
opening, the blades should be replaced.
The chipping blades should clear the anvil by 1/16" to
1/8". Check the clearance every 8 hours of operation and
adjust if needed. The chipping anvil is reversible. All four
sides of the anvil can be used for chipping.
Check the condition of the drive belt annually or after every
25 hours of operating, whichever comes first. If the belt is
cracked, frayed, or worn, replace it. To replace or adjust
drive belt, proceed as follows:
4. Tighten bolts on chipping anvil to 75 ft-lbs. Make
sure all blades clear the anvil by 1/16" to 1/8" before
operating.
If the chipping anvil edge is damaged or worn unevenly,
remove the two bolts holding the anvil and use one of the
other three edges. Adjust for correct measurement.