12
WHEELED TRIMMER
Section
6 TROUBLESHOOTING
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 dealer or ECHO
for service problems with the machine.
PROBLEM
POSSIBLE CAUSES
REMEDY
Trimmer disk does not
turn
Broken or damaged belt
Replace belt
Broken spindle
Replace spindle
Failed bearings
Replace bearings
Cutting is slow or
rough
Cutting string is too weak
Replace with heavier cutting string (.175)
Growth is too thick or heavy
Reduce the trimming area by half or raise the
trimmer head off the ground
Engine not running at full RPM
Speed up engine to full throttle
Trimmer requires
excessive power or
stalls
Cutting string is too long
Reduce cutting string length
Growth is too thick or heavy
Reduce the trimming area by half or raise the
trimmer head slightly off the ground
Belt too tight
Move spindle hub assembly towards the rear of
the trimmer
Drive belt squealing or
smoking
Drive belt is loose or worn
Replace drive belt
Worn or damaged pulley
Replace pulley
Engine won’t start or is
hard to start
Gas tank is empty
Fill gas tank
Spark plug wire is disconnected
Connect loose wire to the spark plug
Spark plug is defective
Replace spark plug
Gas line is obstructed
Remove gas line at carburetor and check for
obstruction. Drain gas tank and refill with fresh
gasoline.
Dirty, stale, water-contaminated gas
Drain tank and fill with fresh gasoline
Flooded engine
Put throttle control in run position and crank
engine several times to clear out excess gas
Dirty or plugged air cleaner or engine
cooling fins
Clean or replace air cleaner. Clean cooling fins
and shroud area of engine.
Trimmer bail not engaged
Engage trimmer bail
Wire harness connection
Check harness for loose connections or break in
wire
