Zenoah YM 415 DW Manuale Utente

0.6 — 0.7mm

■ BLADE

• Check the blade and the fasteners for looseness, cracking, or bending.
• Check the cutting edges and reform with a flat file.

Point (F16):
1. Keep the end corner sharp.
2. Round the root of the edge.
3. Do not use water when using a grinder.

■ AIR CLEANER

• Check and clean the filter element in warm, soapy water as required. Dry completely

before installing. If the element is broken or shrunk, replace with a new one. (F17)

A clogged air filter may increase fuel consumption while cutting down the engine power.
And operate the brushcutter without the air filter or with a deformed filter element will
quickly ruin the engine.

■ FUEL FILTER

• When the engine runs short of fuel supply, check the fuel strainer for blockage. (F18)

A clogged fuel filter may cause poor acceleration of the engine.

■ SPARK PLUG

• Starting failure and mis-firing are often caused by a fouled spark plug. Periodically

clean the spark plug and replace with a new one as required. (F19)

■ GEAR CASE

• Supply multi-purpose grease at every 25 hours of use.
• Remove the cutter holders to arrange for old grease to exit. (F20)

■ MAINTENANCE BEFORE STORAGE

• Aged fuel is one of major causes of engine starting failure. Before storing the unit,

empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and
the carburetor. Store the unit indoor taking necessary measures for rust prevention.

• Check all parts and the functions. If the failured or damaged parts have been found,

replace them with new ones.