Echo 7812086 Owners Manual v.3 - Manual (Page 25)

12 INCH CHIPPER 21
Section
Before performing any of the corrections in this troubleshooting chart, refer to the appropriate information contained in
this manual for the correct safety precautions and operating or maintenance procedures. Contact your nearest dealer
or the factory for service problems with the machine.
problem poSSible.CauSe remeDy
Engine will not start.
Improper control settings.
Lack of fuel.
Dirty, stale or contaminated fuel.
Internal engine problems. 1.
2.
3.
4. use proper settings.
Fill fuel tank.
Refill tank with fresh, clean fuel.
See your dealer. 1.
2.
3.
4.
Engine or rotor stalls or stops.
Obstructed discharge.
plugged rotor. 1.
2. use branch or similar object to clear discharge.
Clear rotor. Feed material more evenly. 1.
2.
Engine overheats.
Cooling system plugged.
Improper oil level.
Insufficient coolant. 1.
2.
3.
Clean cooling fan and fins.
Fill engine to correct oil level. Refer to the
engine owners manual.
Fill coolant. 1.
2.
3.
hard to feed chipper; requires
excessive power to chip.
Dull chipper blades.
Obstructed discharge.
Improper blade clearance. 1.
2.
3.
Rotate or sharpen blades.
use branch or similar object to clear discharge.
Adjust clearance between the chipper blades
and anvil. 1.
2.
3.
Engine stalls or belt squeals
when engaging clutch.
Engaging clutch too fast.
plugged rotor.
Belt tension too loose. 1.
2.
3. Lower engagement handle more slowly.
Clear rotor. Feed material more evenly.
Replace belt or spring. 1.
2.
3.
Material from chipper wraps
around rotor shaft.
Stringy, green material bypasses chip-
per blades.
Dull chipper blades.
Improper blade clearance. 1.
2.
3.
Rotate branch or material when feeding to cut
completely.
Sharpen blades.
Adjust clearance between the chipper blades
and anvil. 1.
2.
3.
Excessive vibration while
running.
Drive system vibration.
Rotor out of balance.
Chipper blade/anvil clearance is
incorrect.
1.
2.
3.
Check drive belts and pulleys for bad or worn
areas. Check for dull chipper blades.
Inspect rotor for broken or missing chipper
blades; replace if needed. Check rotor to see
if it wobbles. Check to see if rotor is assembled
correctly.
Set chipper blade/anvil clearance to recom-
mended distance (3/16" to 3/8"). 1.
2.
3.
Rotor will not turn.
Drive belt too loose or broken.
Obstructed discharge.
plugged rotor.
1.
2.
3.
Replace belt or spring.
use branch or similar object to clear discharge.
Clear rotor. Feed material more evenly.
1.
2.
3.
Cannot engage clutch.
Improper belt installation.
Improper belt tension.
1.
2.
Install belt properly.
Replace belt or spring. 1.
2.
Excessive belt wear.
Not using correct belt.
pulley(s) damaged or worn.
pulley(s) not in alignment.
Belt(s) tension too loose.
1.
2.
3.
4.
Contact your nearest authorized dealer to order
the correct belt for your chipper.
Replace pulley(s).
Align pulley(s) with straight edge.
Replace belt or spring.
1.
2.
3.
4.
Trailer sways during towing. Tire air pressure not correct 1. Check tire sidewall for inflation limits. 1.
troubleshooting 6