Dolmar MS-230 C Manuel D’Utilisation

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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 filter (E/9) of the suction head is used to filter the fuel
taken in by the carburetor.
A periodical visual inspection of the felt filter 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 filter has hardened or is dirty or clogged, replace it.
Insufficient fuel supply can result in the admissible maximum
speed being exceeded. It is therefore important to replace the 
felt filter at least every three months to ensure a good fuel sup-
ply to the carburetor.
Cleaning the muffler opening
Regularly inspect the muffler 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 difficulty
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 filled
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
Insufficient power
Several systems
Engine idling
Air filter dirty, carburetor adjustment  
may be affected
incorrect, muffler clogged, exhaust duct in
 
simultaneously 
 
the cylinder clogged
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