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STORAGE
–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. | Drain fuel | Humidity |
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–Clear dirt or dust from the cutter blade and outside of engine, wipe them with a
Maintenance schedule
General | Engine assembly, screws and | Visual inspection for damage and tightness |
| nuts | Check for general condition and security |
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After each refuelling | Control lever | Functional check |
| Functional check | |
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Daily | Air filter | To be cleaned |
| Cooling air duct | To be cleaned |
| Cutting tool | Check for damage and sharpness |
| Idling speed | Inspection (cutting tool must not move) |
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Weekly | Spark plug | Inspection, replace if necessary |
| Muffler | Check and if necessary clean the opening |
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Quarterly | Suction head | To be replaced |
| Fuel tank | To be cleaned |
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Shuting down procedure | Fuel tank | Empty fuel tank |
| Carburetor | Operate until engine runs out of fuel |
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Fault location
Fault
Engine not starting or with difficulty
Warm start problems
Engine starts but dies
Insufficient performance
System | Observation | Cause |
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Ignition system | Ignition spark O.K. | Fault in fuel supply or compression system, mechanical |
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| defect |
| No ignition spark | |
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| plug or connector defective, ignition module faulty |
Fuel supply | Fuel tank filled | Incorrect choke position, carburetor defective, fuel supply |
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| line bent or blocked, fuel dirty. |
Compression | No compression when | Cylinder bottom gasket defective, crankshaft seals |
| pulled over | damaged, cylinder or piston rings defective or improper |
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| sealing of spark plug |
Mechanical fault | Starter not engaging | Broken starter spring, broken parts inside of the engine |
| Tank filled ignition spark | Carburetor contaminated, must be cleaned |
| existing |
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Fuel supply | Tank filled | Incorrect idling adjustment, carburetor contaminated |
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| Fuel tank vent defective, fuel supply line interrupted, |
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| cable or |
Several systems | Engine idling poor | Air filter contaminated, carburetor contaminated, muffler |
may simultaneously |
| clogged, exhaust duct in the cylinder clogged |
be affected |
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