Storage; Fault Location - Dolmar MS-335.4 U Originalbetriebsanleitung

STORAGE

WARNING: When draining the fuel, be sure to stop the engine and confirm that the engine cools down.
Just after stopping the engine, it may still hot with possibility of burns, inflammability and fire.
ATTENTION: When the machine is kept out of operation for a long time, drain up all fuel from the fuel tank and
carburetor, and keep it at a dry and clean place.
– Drain up fuel from the fuel tank and carburetor according to the following
procedure:
1) Remove the fuel tank cap, and drain fuel completely.
If there is any foreign matter remaining in the fuel tank, remove it
completely.
2) Pull out the fuel filter from the refill port using a wire.
3) Push the primer pump until fuel is drained from there, and drain fuel
coming into the fuel tank.
4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap.
5) Then, continue to operate the engine until it stops.
– Remove the spark plug, and drip several drops of engine oil through the
spark plug hole.
– Gently pull the starter handle so that engine oil will spread over the engine,
and attach the spark plug.
– Attach the cover to the metal blade.
– In general, store the machine in horizontal position. If it is not possible,
place the machine as the motor unit comes below the cutting tool. Otherwise
engine oil may leak from inside.
– Always pay attention to storing the machine in a safe place to prevent
machine damage and personal injury.
– Keep the drained fuel in a special container in a well-ventilated shade.
Attention after long-time storage
– Before startup after long-time shutdown, be sure to replace oil (refer to P 18). Oil will deteriorate while the machine is kept out of
operation.

Fault location

Fault
Engine not starting or with
difficulty
Warm start problems
Engine starts but dies
Insufficient performance
System Observation
Ignition system Ignition spark O.K.
No ignition spark
Fuel supply Fuel tank filled
Compression No compression when
pulled over
Mechanical fault Starter not engaging
Tank filled ignition spark
existing
Fuel supply Tank filled
Several systems may Engine idling poor
simultaneously be
affected
Cause
Fault in 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, fuel supply
line bent or blocked, fuel dirty
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective or improper
sealing of spark plug
Broken starter spring, broken parts inside of the engine
Carburetor contaminated, have it cleaned
Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or STOP-switch faulty
Air filter contaminated, carburetor contaminated, muffler
clogged, exhaust duct in the cylinder clogged
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