Echo 74520 Owners Manual v.2 - Manual (Page 27)

Page 23 5" Chipper W/Hyd. Feed Owners Manual
Problem Possible Cause Correction
Improper control settings Use proper setting
Lack of fuel Fill fuel tank
Internal problems See dealer
Spark plug disconnected Connect spark plug
Dirty, stale, or contaminated gas Refill tank with fresh gasoline
Obstructed discharge
Use branch or similar object to clear
discharge
Improper blade clearance Adjust clearance
Dull chipper blades Sharpen blades
Feeding material too fast into chipper Slow feed rate
Plugged rotor Clear rotor
Dull chipper blades Sharpen blades
Improper blade clearance Adjust clearance
Obstructed discharge
Use branch or similar object to clear
discharge
Engaging clutch too fast Lift clutch lever more slowly
Plugged rotor
Clear rotor, feed material into shredder
more evenly
Belt tension too loose Tighten or replace belt
Stringy, green material bypasses
chipper blades
Rotate branch or material when
feeding to cut completely
Improper blade clearance Adjust clearance
Chipper blades to anvil clearance is
incorrect
Set chipper blade to anvil clearance to
recommended distance (1/16" to 1/8")
Dull chipper blades Sharpen or replace blades
Material from chipper wraps
around the rotor shaft
Hard to feed chipper requires
excessive power
Engine will not start
Engine or rotor stalls or stops
Engine stalls or belt squeals
with engaging clutch
Service and Maintenance
5.11 GENERAL TROUBLESHOOTING