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MAINTENANCE SCHEDULE
General
After each
refueling
Daily
Weekly
Quarterly
Shutting down
procedure
FAULT LOCATION
Fault
System
Engine not
Ignition system Ignition
starting or
under
difficulties
Fuel supply
Compression
Mechanical
fault
Engine assembly
Screws and nuts
Throttle lever
Safety lock key
STOP switch
Air filter
Cooling air duct
Cutting tool
Idling speed
Spark plug
Muffler
Suction head
Fuel tank
Fuel tank
Carburetor
Observation Cause
spark is
present
No ignition
spark
Fuel tank
filled
Inside of
engine
Outside of
engine
Starter not
engaging
Tank filled
Ignition
spark
Visual inspection for damage and tightness
Check for general condition and security
Functional check
Functional check
Functional check
To be cleaned
To be cleaned
Check for damage and sharpness
Inspection (cutting tool must not move)
Inspection replace if necessary
Check and if necessary clean the opening
To be replace
To be cleaned
Empty fuel tank
Operate until engine runs out of fuel
Faulty fuel supply or compression system,
mechanical defect
STOP-switch operated, wiring fault or short
circuit, spark plug or connector defective,
ignition module faulty
Incorrect choke position, carburetor
defective, suction head (gas line filter) dirty,
fuel supply line bent or interrupted
Cylinder bottom gasket defective,
crankshaft seals damaged, cylinder or
piston rings defective
Improper sealing of spark plug
Broken starter spring, broken parts inside of
the engine
Carburetor contaminated, have it cleaned
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