Clearing A Plugged Rotor; Drive Belts - Echo BEARCAT SC5540 Owner's Manual

SERVICE & MAINTENANCE
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
4. Loosen the set screws on the lock collars.
5. Use a punch and hammer to tap the lock collars in the
opposite direction of normal rotation so they rotate
and can be removed.
6. Using a rubber mallet, tap the end of the rotor shaft to
obtain 1/16" to 1/8" clearance. The blade clearance
can be viewed through the discharge opening. Rotate
the rotor and check the clearance all chipping blades.
7. Once clearance has been set, the lock collars must
be replaced to retain the setting. Slip the lock collars
over the hub on the bearings. Using a punch and
a hammer, rotate the lock collars in the direction of
shaft rotation and set the lock collars with a hammer
tap. Tighten the lock collar set screws.
8. Loosen the bushing holding the belt pulley on the rotor
shaft. Move the pulley on the shaft so it is aligned
directly below the similar pulley on the engine shaft.
The pulley should be moved an equal but opposite
amount the rotor was moved.
9. Replace the rotor shaft cover, discharge door,
discharge screen and the lower belt guard.

5.10 CLEARING A PLUGGED ROTOR

Feeding too large or too much material at once may plug
the chipper. To clear a plugged rotor, proceed as follows:
1. Remove the discharge door by removing the retaining
bolt securing the discharge door to the chipper body.
2. Remove the two 5/16" × 3/4" bolts and nuts securing
the discharge screen to the frame. Pull the bottom of
the discharge screen outward to rotate the screen off
the lip.
3. Clean any trash or debris out from the screen area.
4. Place the top lip of the discharge screen into the slot
under the top slope of the chipper body and rotate the
screen so that the bolt holes align with the holes in
the chipper body.
5. Reinstall the bolts and torque to 17 ft-lbs.
6. Replace the discharge door.
14
AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
5 INCH CHIPPER/SHREDDER
WARNING

5.11 DRIVE BELTS

Check the condition of the drive belts annually or every
50 hours of operation, whichever comes first. Replace
the belt if cracked, frayed or worn. To replace the belt,
proceed as follows:
1. Remove the PTO shield and shaft from the tractor
and disconnect the machine from the 3-point hitch.
2. Remove the round shield connected to the belt guard
that covers the PTO shaft by removing the two 5/16"
nuts.
3. Remove the PTO shaft by loosening the two set
screw and sliding the shaft out of the chipper body.
4. Loosen the bolts securing the jackshaft pillowblock
bearings to the chipper body (see below).
5. Slide the jackshaft towards the frame and remove the
belt from the pulleys.
6. Install the new belt and make sure the pulleys are
aligned. If not, adjust the pulleys.
7. Slide the jackshaft away from the frame until the belt
deflection is 7/16" when a 20 lb. load is placed against
the belt. Make sure the jackshaft is aligned parallel to
the rotor shaft before tightening the bolts securing the
pillowblock bearings to the chipper frame.
8. Reinstall belt shields and guards. Install the PTO
shaft and tighten the two set screws. Install the PTO
shield.
Figure 5.6, Jackshaft bolts