Echo CH5540 Owners Manual v.2 - Manual (Page 18)

5 INCH PTO CHIPPER 14
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.
5.7 REPLACING ROTOR BEARINGS
1. Remove the 3/8" retaining bolt holding access cover to
main frame assembly. Tilt access cover over to allow
rotor access.
2. Remove large belt guard.
3. Remove idler pulley and drive belts. Using the push
bolts from the bushing, remove the bushing, spacer
and pulley from the rotor shaft.
4. Remove the two 1/2" bolts on each rotor bearing and
remove the roll pin from the rotor shaft.
5. Using an overhead hoist or lifting device, lift the rotor
assembly completely out of the frame. The complete
rotor assembly is 140 lbs.
6. Once the rotor assembly is out of the frame, remove
both bearings and place new bearings on shaft.
7. Replace roll pin.
8. Use the overhead hoist or lifting device to return the
complete rotor assembly to the chipper frame.
9. Slide rotor back until the roll pin is tight against the front
bearing. Lock the front bearing and install the 1/2" bolts
on each bearing to secure them to the frame. Tighten
bolts to 75 ft-lbs. . Lock rear bearing.
10. Slide spacer and bushing onto shaft with flange against
bearing and lock bushing to shaft. Attach rotor pulley to
bushing. Replace drive belts and reinstall idler pulley. Check
and adjust chipper anvil if needed. Check alignment of
pulleys and belt tension. Adjust if needed.
11. Replace belt guard and resume operation.
12. Start tractor engine and engage PTO drive clutch (see
tractor owner's manual). Increase engine speed to
rated PTO RPM Position. Test unit; readjust pulleys
if needed.
5.8 CLEARING A PLUGGED ROTOR
1. Shut off power source and allow all moving parts to come
to a complete stop.
2. Remove the retaining bolt holding the access cover to
the main frame assembly and lift up access cover.
3. Clean the debris out of the chipping rotor. Turn the rotor
by hand to be sure it is free to rotate.
4. Close rotor access cover and replace bolt.
5. Start engine and engage drive belt to resume
operation.
5.9 LUBRICATION
Figure. 5.6. Grease zerks on CH5540
• Two bearings on the rotor shaft.
• One grease zerk on the discharge chute.
• One grease zerk behind pulley.
• One grease zerk underneath bearing.
Lubricate the machine periodically with a lithium-based
grease. Extreme working conditions will require more
frequent greasing.
Grease the following points every 50 hours of operating
time:
50 h