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16
DM-4610
Trouble
Engine
- starts hard
Cause
Remedy
- does not start
Engine
Fuel at
No fuel
• Fuel filter clogged
• Clean or replace
cranks
carburettor
at carburettor
• Fuel line clogged
• Clean
• Carburettor
• Ask your ECHO dealer
Fuel at
No fuel
• Carburettor
• Ask your ECHO dealer
cylinder
at cylinder
Muffler wet
• Fuel mixture is too rich
• Open choke
with fuel
• Clean/replace air filter
• Adjust carburettor
• Ask your ECHO dealer
Spark at
No spark
• Electrical problem
• Ask your ECHO dealer
end of
at end of
plug wire
plug wire
Spark at
No spark at
• Spark gap incorrect
• Adjust 0.6 mm to 0.7 mm
plug
plug
• Covered with carbon
• Clean or replace
• Fouled with fuel
• Clean or replace
• Spark plug defective
• Replace plug
Engine
• Internal engine problem
• Ask your ECHO dealer
does not
crank
Engine
Dies or
• Air filter dirty
• Clean or replace
runs
accelerates poorly
• Fuel filter dirty
• Clean or replace
• Fuel vent plugged
• Clean
• Spark plug
• Clean and adjust/replace
• Carburettor
• Adjust
• Cooling system plugged
• Claen
• Exhaust port/silencer plugged • Clean
No mist
• Valve closed (or partially
• Open
discharge/
closed)
poor mist
• Valve clogged
• Clean
discharge
• Discharge pipe clogged
• Clean
• Nozzle clogged
• Clean
• Loosened chemical tank cap • Secure
No/poor
Malfunction of
• Frozen shutter
• Clean or replace
discharge of
shutter
• Distortion of shutter
• Replace
dust/granule/
mechanism
mechanism
fertilizer
• Loosening/dislocation of
• Adjust/secure
shutter linkage
• Misposition of shutter
• Adjust
control arm
• Damped/aged chemical
• Use fesh/dry chemical
Chemical
• Foreign substance in
• Remove/use fresh chemical
cause
the chemical
• Hardened chemical
• Crush well
• Loosened chemical tank cap • Secure
Poor
• Unstable seating of
• Secure
preparation
chemical tank mount
TROUBLE SHOOTING
WARNING DANGER
• SERVICING OF THIS MACHINE, OTHER THAN ITEMS LISTED IN THE OPERATOR’S MANUAL, SHOULD BE
PERFORMED BY COMPETENT SERVICE PERSONNEL.
• FUEL VAPORS ARE EXTREMELY FLAMMABLE AND MAY CAUSE FIRE AND/OR EXPLOSION. NEVER
TEST FOR IGNITION SPARK BY GROUNDING SPARK PLUG NEAR CYLINDER PLUG HOLE, OTHERWISE
SERIOUS PERSONAL INJURY MAY RESULT.