15
STORAGE
– When keeping the machine in storage for a long time, drain fuel from
the fuel tank and carburetor, as follows: Drain all fuel from the fuel tank.
– Remove the spark plug and add a few drops of oil into the spark plug
hole. Then, pull the starter gently to confirm that oil film covers the
engine inside and tighten the spark plug.
– Clear dirt or dust from the cutter blade and outside of engine, wipe
them with a oil-immersed cloth and keep the machine at a place as dry
as possible.
– Abide by Federal and Local regulations for safe storage and handling of
gasoline.
MAINTENANCE SCHEDULE
General
Engine assembly,
screws and nuts
Visual inspection for damage and tightness
Check for general condition and security
After each refuelling
Throttle lever
Safety lock key
STOP switch
Functional check
Functional check
Functional check
Daily
Air filter
Cooling air duct
Cutting tool
Idling speed
To be cleaned
To be cleaned
Check for damage and sharpness
Inspection (cutting tool must not move)
Every 15 hours
Gear case
Supply of grease
Weekly
Spark plug
Muffler
Inspection, replace if necessary
Check and if necessary clean the opening
Quarterly
Suction head
Fuel tank
To be replaced
To be cleaned
Shutting down
procedure
Fuel tank
Carburetor
Empty fuel tank
Operate until engine runs out of fuel
FAULT LOCATION
Fault System Observation
Cause
Ignition system
Ignition spark is present
Faulty fuel supply or compression system, mechanical defect
Engine not starting
or under difficulties
No ignition spark
STOP-switch operated, wiring fault or short circuit, spark plug or
connector defective, ignition module faulty
Fuel supply
Fuel tank filled
Incorrect choke position, carburetor defective, suction head (gas line
filter) dirty, fuel supply line bent or interrupted
Compression
Inside
of
engine
Cylinder bottom gasket defective, crankshaft seals damaged,
cylinder or piston rings defective
Outside of engine
Improper sealing of spark plug
Mechanical
fault
Starter not engaging
Broken starter spring, broken parts inside of the engine
Warm start problems
Tank filled
Ignition spark existing
Carburetor contaminated, have it cleaned
Incorrect idling adjustment, suction head or carburetor contaminated
Engine starts but dies
immediately
Fuel supply
Tank filled
Fuel tank vent defective, fuel supply line interrupted, cable or
STOP-switch faulty
Insufficient
performance
Several
systems may
simultaneously
be affected
Engine idling
Air filter contaminated, carburetor contaminated, muffler clogged,
exhaust duct in the cylinder clogged
