Echo 74520 Owners Manual v.2 - Manual (Page 28)

Page 24 5" Chipper W/Hyd Feed Owners Manual
5.11 GENERAL TROUBLESHOOTING (CONTINUED)
Drive system vibration
Check drive belts and pulleys for bad
or worn areas. Check PTO shaft for
wear.
Rotor out of balance
Inspect rotor for broken or missing
chipper blades. Repair if needed.
Check rotor to see if rotor is
assembled correctly.
Chipper blade to anvil clearance is
incorrect
Set chipper blade to anvil clearance to
recommended distance (1/16" to 1/8")
Drive belt too loose or broken Adjust or replace
Obstructed discharge
Use branch or similar object to clear
discharge
Plugged rotor Clear rotor
Improper belt installation Install belt properly
Shock absorber binding Replace shock absorber
Improper belt tension Tighten or loosen belt as needed
Engagement spring binding in spring
cover
Remove spring cover and clean
Pulleys not aligned Aligned pulleys with straight edge
Clutch pedal binding Determine cause and repair
Not using correct belt
Contact authorized dealer to order
Bear Cat belts
Pulley damaged or wore Replace pulley
Pulley not in alignment Align pulley with straight edge
Belt tension too loose Tighten belt or replace
Trailer sways during towing Tire air pressure not correct Check tire sidewall for inflation limits
Engine speed too slow Increase engine speed
Feeding material too fast into chipper Slow feed rate
Plugged discharge tube
Excessive belt wear
Rotor will not turn
Cannot engage clutch
Excessive vibration while
running
Service and Maintenance