Echo 73040 Owners Manual v.2 - Manual (Page 17)

Page 13 EZ Trim Mower Owners Manual
Problem Probable Cause Suggested Remedies
Broken off or damaged belts Replace belts
Broken spindle Repair spindle
Failed bearings Repair bearings
Cutting string is too weak
Replace with heavier cutting string
(.155)
Growth is too thick or heavy
Reduce trimming area by half or raise
the trimmer head off the ground
Engine not running at full RPM Speed up engine to full throttle
Cutting string is too weak
Replace with heavier cutting string
(.155)
Drive belts are loose or worn Replace drive belts
Growth is too thick or heavy
Reduce the size of trimming area in
half or raise the trimmer head off the
ground slightly
Belts too tight
Move spindle hub assembly towards
the rear of the trimmer
Drive belts are loose or worn Replace drive belts
Worn or damaged pulley Replace pulley
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 (bail
disconnected)
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 air cleaner or replace. Clean
cooling fins and shroud area of
engine.
Engine brake control open Replace engine brake control
Pulley not aligned Align pulleys
Belt not tensioned properly Tension belt with 70 lbs of force
Spindle bearing failed Replace bearing
Loose chain Tighten chain
Worn chain Replace chain
Worn sprocket Replace sprocket
Sprocket not aligned
Align drive sprocket and wheel clutch
assembly with washers
Engine won't start or is
hard to start
Drive belt rolling or falling
off of pulleys
Chain Falling off Self
Propelled Model
Cutting strings do not
turn
Cutting is slow or rough
Trimmer requires
excessive power or stalls
Drive belts squealing or
smoking
Service and Maintenance
4.10 TROUBLESHOOTING