Dolmar MS-260 U, MS-330 U, MS-430 U, MS-230 C, MS-260 C, MS-330 C Brush Cutter User Manual


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18
Trouble shooting
After about 50 operating hours the gear box (D/8) should be
checked by a OLMAR service centre, and if necessary re-
grease.
The service centre will add the exact amount of grease, as
excessive grease will lead to overheating of the gearbox.
Lubricating the gear box
Thefeltlter(E/9)ofthesuctionheadisusedtolterthefuel
taken in by the carburetor.
Aperiodicalvisualinspectionofthefeltltershouldbecon
-
ducted. For this purpose open the tank cap, and use a wire
hook to pull out the suction head through the tank opening. If
thelterhashardenedorisdirtyorclogged,replaceit.
Insufcientfuelsupplycanresultintheadmissiblemaximum
speed being exceeded. It is therefore important to replace the
feltlteratleasteverythreemonthstoensureagoodfuelsup-
ply to the carburetor.
Cleaning the mufer opening
Regularlyinspectthemuferopening(E/8). When it becomes
clogged with carbon residues, carefully scrape them out with
the suitable tool.
Suction head in the fuel tank
Service
Servicing and maintenance
After about 50 tankfuls, have the brushcutter thoroughly inspected
at a DOLMAR service centre.
No maintenance and adjustment work not described in this
manual may be performed by the user. Al such work must
be performed only by a DOLMAR service centre.
Fault System
Observation Cause
Engine will not start or Ignition system Ignition spark OK Fault in fuel supply or compression system,
startsonlywithdifculty mechanicaldefect
No ignition spark STOP switch is depressed, wiring fault or short
circuit, spark plug or connector defective,
ignition module faulty
Fuel supply Fuel tank full Incorrect choke position, carburetor defective,
suction head dirty, fuel supply line bent or
interrupted
Compression Inside of engine Cylinder bottom gasket defective, crankshaft
system seals damaged, cylinder or piston rings worn
Outside of engine Poor sealing of spark plug
Mechanical fault Starter not engaging Broken starter spring, broken parts inside engine
Warmstartproblems Carburetor Tanklled Incorrectcarburetorsetting
Ignition spark OK
Engine starts but Fuel supply Tank full Incorrect idle speed, suction head or
dies immediately carburetor dirty
Fuel tank vent defective, fuel supply line
interrupted, cable or STOP switch faulty
Insufcientpower Severalsystems Engineidling Airlterdirty,carburetoradjustment
maybeaffected incorrect,muferclogged,exhaustductin
simultaneously the cylinder clogged
D
E
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