Echo 72928 Owners Manual v.2 - Manual (Page 23)

20
T R O U B L E S H O O T I N G
Troubleshooting
Suggested
Remedies
a) Use branch or
similar object to
clear discharge
b) Clear rotor
a) Use branch or
similar object to
clear discharge
b) Sharpen blades
c)
Adjust clearance
a) Use branch or
similar object to
clear discharge
b) Clear rotor, feed
material into
shredder more
slowly
c) Alternately feed dry
material, or allow
material to dry
a) Clear rotor
b) Adjust belt tension
or replace belts if
needed
a) Check drive belts
and pulleys for bad
or worn spots.
b) Inspect rotor for
broken or missing
chipper blades and
paddles. Repair if
needed.
c) Check rotor to see if
it wobbles
d) Check to see if rotor
is assembled
correctly
a) Contact local
engine service
center
Probable Cause
a) Obstructed
discharge
b) Plugged rotor
a) Obstructed
discharge
b) Dull chipper blades
c)
Improper blade
clearance
a) Obstructed
discharge
b) Plugged rotor
c)
Green material will
not discharge
a) Plugged rotor
b) Loose or worn belts
a) Drivehead vibration
b) Rotor out of
balance
a) Engine problems
Problem
1. Rotor does not turn
2. Hard to feed
chipper or
excessive power
needed to chip
3. Chipper requires
excessive power or
stalls
4. Drive belts
squealing or
smoking
6. Vibration while
running
7. Engine dies or runs
poorly
Reference
Service and Maintenance
Service and Maintenance
Service and Maintenance
Service and Maintenance
Service and Maintenance
Service and Maintenance
Engine Manual