Echo Bear Cat 70554S - Manual (Page 16)

13
P.T.O. models: Disengage P.T.O. Shut off tractor
engine.
2. Remove 5/16 inch bolt holding the discharge
screen in place. Pull the screen out of the ma-
chine.
3. Clean the debris out of the shredding rotor. Turn
the rotor by hand to be sure it is free to rotate.
4. Replace discharge screen by inserting top lip of
screen into slot inside machine and rotate screen
downward until bolt hole in screen bottom aligns
with hole in machine.
5. Replace spark plug wire (engine models), restart
engine and resume operation.
3.4 Replacing Drive Belts
Check the condition of the drive belt(s) annually or
every 30 hours of operation, whichever comes first. If a
belt is cracked, frayed or worn, it should be replaced. To
replace a belt, proceed as follows:
3.4.1 Engine models:
1. Stop engine, disengage rotor clutch, and allow
machine to come to a complete stop. Remove the
spark plug wire.
2. Remove large belt guard (four 5/16" bolts).
3. Remove inner belt guard from under drive belt.
4. Disconnect and plug fuel line from fuel tank.
5. Remove fuel tank from frame assembly.
6. Slip the drive belt off the pulleys. If necessary,
loosen the engine bolts and tip the engine forward to
allow the belt to slip off the pulley.
7. Inspect pulleys for wear. Replace the pulleys if they
are cracked or worn. The belt contact area should
be smooth and flat.
8. Place new belt over pulleys. Do not force or pry the
belt over the pulleys as this may cause cord break-
age. If necessary, loosen engine mounting bolts and
tip the engine forward to allow the belt to be easily
placed over the pulley.
9. Align the engine so the crankshaft is parallel to the
rotor shaft. Tighten engine mounting bolts to 20 ft.
lbs. torque.
S E C T I O N 3
10. Check pulley alignment. Place a straightedge
across the face of both pulleys to inspect. If
necessary, loosen the set screws on both pulleys
and adjust them so that they are directly in line.
11. Replace belt guards. Allow 1/8 inch clearance
between top of belt and inside of lower belt guard.
Make sure all bolts, nuts, and fasteners are properly
torqued to 20 ft. lbs.
3.4.2 P.T.O. Models
1. Disengage P.T.O. Shut off tractor engine.
2. Disconnect P.T.O. shaft from tractor and remove
machine from 3 pt. hitch.
3. Remove round shield (connected to belt guard that
covers P.T.O shaft) by removing two 5/16" nuts.
4. Remove P.T.O. shaft from chipper/shredder by
removing two set screws and pulling shaft off.
5. Remove belt guard end and belt guard that covers
pulleys.
6. Loosen bolts that attach the jack shaft pillow block
and move shaft toward frame. Slip belts off pulleys.
7. Inspect pulleys for wear. Replace the pulleys if they
are cracked or worn. The belt contact area should
be smooth and flat.
8. Place new belts over pulleys. Do not force or pry
the belt over the pulleys as this may cause cord
breakage.
9. Check pulley alignment. Place a straightedge across
the face of both pulleys to inspect. If necessary,
loosen the set screws on both pulleys and move
them so that they are directly in line. Retighten the
pulley set screws. Make sure jack shaft is aligned
parallel to rotor shaft before tightening pillow block
bolts.
10. Install belt shields and guards. Allow 1/8 inch
clearance between top of belt and inside of lower
belt guard. Make sure all bolts, nuts, and fasteners
are properly torqued to 20 ft. lbs.
11. Install P.T.O shaft and tighten set screws. Install
P.T.O. shield. Never run P.T.O without all shields in
place.