Dolmar MS-24 U - Storage

20
Fault location
Maintenance schedule
When the machine is in storage for a long time, drain fuel from the fuel –
tank and carburetor, as follows: Drain all fuel from the fuel tank. Dispose of
properly and in accordance with all local laws.
Remove the spark plug and a few drops of oil into the spark plug hole. –
Then, pull the starter gently, so that oil 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 in a place as dry as possible.
Drain fuel
Humidity
STORAGE
Fault System Observation Cause
Engine not starting or with
difculty
Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical
defect
No ignition spark I-O switch operated, wiring fault or short circuit, spark
plug or connector defective, ignition module faulty
Fuel supply Fuel tank lled Incorrect choke position, carburetor defective, fuel supply
line bent or blocked, fuel dirty
Compression No compression when
pulled over
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective or improper
sealing of spark plug
Mechanical fault Starter not engaging Broken starter spring, broken parts inside of the engine
Warm start problems Tank lled ignition spark
existing
Carburetor contaminated, must be cleaned
Engine starts but dies Fuel supply Tank lled Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or I-O switch faulty
Insufcient performance Several systems may
simultaneously be
affected
Engine idling poor Air lter contaminated, carburetor contaminated, mufer
clogged, exhaust duct in the cylinder clogged
General Engine assembly, screws and nuts Visual inspection for damage and tightness
Check for general condition and security
After each refuelling Control lever
I-O switch
Functional check
Functional check
Daily Air lter
Cooling air duct
Cutting tool
Idling speed
To be cleaned
To be cleaned
Check for damage and sharpness
Inspection (cutting tool must not move)
Weekly Spark plug
Mufer
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