Echo CH45540 Owners Manual v.5 - Manual (Page 18)

4.5 INCH CHIPPER 14
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
INSTALLING THE NEW ROTOR BEARINGS
1. Slide a snap ring, rear bearing and another snap ring
onto the rotor shaft. Tighten the set screw and install
the 1/2" hardware to connect the bearing to the chipper
frame. Torque to 120 ft-lbs.
2. Reinstall the bushing and sheave on the rotor shaft.
3. Replace the drive belt. Using a straight edge, check the
belt alignment. The two sheaves must be flush.
4. With the engagement lever in the RELEASE position,
reinstall the idler pulley.
5. Slide the front bearing and snap rings onto the rotor
shaft.
6. Install the bearing support weldment with 3/8" hardware.
Attach the front bearing to the support weldment with
two 1/2 x 1-1/2" bolts. Torque bearing bolts to 120 ft-lbs.
Tighten the bearing set screw.
7. Reinstall the front belt shield.
NOTE
To replace any of the other four bearings on the PTO
chipper, use a method similar to the process in Section
5.10.2. However, these four bearings contain locking
collars. To loosen the lock collar, loosen the set screw and
insert a punch into the collar open hole. Using a hammer,
tap the punch in the opposite direction of normal shaft
rotation. To install a new bearing, tap the collar in the
direction of shaft rotation and tighten the set screw.
1. Remove the chipper deflector and/or disk cover.
Remove debris, taking care to avoid the chipper blades
which can be extremely sharp.
2. Once debris is removed, replace the chipper deflector
and/or disk cover.
5.11 CLEARING A PLUGGED DISK
5.10 REPLACING THE ROTOR BEARINGS
(CONT.)