Echo CH8993H Owners Manual v.7 - Manual (Page 32)

28 8 INCH TURNTABLE CHIPPER
TROUBLESHOOTING
Machine chips poorly.
Dull chipper blades. Flip or sharpen blades.
Drive belts loose or worn.
Inspect drive belts, adjust or replace if
needed.
Attempting to feed branches that are
too large.
Limit branch size to 8 inches in diameter.
Engine overheats.
Cooling system plugged.
Clean cooling fan and cooling fins on the
radiator.
Improper coolant level.
Fill engine to correct coolant level. Refer to
the engine owners manual.
Hard to feed chipper; requires
excessive power to chip.
Dull chipper blades. Flip or sharpen blades.
Obstructed discharge.
Use branch or similar object to clear
discharge.
Improper blade clearance.
Set blade/anvil clearance to recommended
distance.
Engine stalls or belt squeals
when engaging belt.
Engaging belt too fast. Engage belt more slowly.
Belt tension too loose. Replace belt or spring.
Excessive vibration while
running.
Dull chipper blades. Flip or sharpen blades.
Drive system vibration.
Check drive belts, bearings, and pulleys for
bad or worn areas. Check for dull chipper
blades or shredder knives.
Disk out of balance.
Inspect rotor for damaged or missing chipper
blades; replace if needed.
Chipper blade to anvil clearance is
incorrect.
Set blade/anvil clearance to recommended
distance.
Cannot engage belt.
Improper belt installation; belt not
under belt guide.
Install belt properly; install belt under belt
guide.
Improper belt tension.
Adjust belt tension. Replace belt or spring if
needed.
Excessive belt wear.
Not using correct belt.
Contact your nearest authorized dealer to
order the correct belt for your chipper.
Pulley(s) damaged or worn. Replace pulley(s).
Pulley(s) not in alignment.
Align pulley(s) to within 1/16" with straight
edge.
Belt(s) tension too loose. Replace belt or spring.
Trailer sways during towing.
Discharge tube and/or extension tray
not in correct towing position.
Before towing the machine, position the
discharge tube over the hitch poll and raise
the extension tray.
Tire air pressure is not correct. Check tire sidewall for inflation limits.