Troy-bilt 47330 Manuale Utente Scaricare il pdf (Pagina 22)

22 Section 5: Maintenance

A WARNING

Failure to follow these instructions can result in serious personal injury or property damage.

Before inspecting, cieaning or servicing the machine, shut off engine, wait for ail moving parts to

come to a compiete stop, disconnect spark plug wire and move wire away from spark plug.

ENCINE MAINTENANCE

IMPORTANT: Refer to the separate Engine

Owner’s Manual tor complete engine

maintenance guidelines and instructions.

ENGINE OIL

• Check the oil level before each use and

after every 8 operating hours (whichever

comes first). Refer to the Engine

Owner’s Manual for how to check the oil

level.

• Change the engine oil after the first 5

hours of operation, then every 25 hours

thereafter (change more often if operat

ing in extremely dusty, dirty conditions).

See oil changing instructions in the sepa

rate Engine Owner’s Manual. TIP: When

changing oil, fold a piece of cardboard or

aluminum foil into a “V” and position

below the oil drain plug as shown in

Figure 5-9.

Figure 5-9: Orelnlng the engine oil.

AIR CLEANER MAINTENANCE

The engine air cleaner system filters the

air before it is drawn into the carburetor

for combustion. This air cleaner system

requires regular maintenance for maxi

mum engine life and performance. Refer

to the Engine Owner’s Manual for engine

air cleaner service information.

IMPORTANT: Service the air cleaner

system more often if used in extremely

dusty conditions.

ENGINE SPARK PLUG

To maintain peak engine efficiency, service

the spark plug every 100 hours, or annu

ally, as instructed in the Engine Owner’s

Manual.

KEEP ENGINE CLEAN

Check the engine recoil housing, cooling

fins and muffler frequently for debris and

clean daily before running the engine.

Grass, dirt, or wood chips can clog the

rotating screen and the engine air cooling

system and cause overheating. Clean the

muffler area to remove combustible

debris. Use a cloth or brush when clean

ing. Do not clean with a forceful spray of

water because water could contaminate

the fuel system.

If the engine is equipped with a spark

arrester screen, remove it for cleaning and

inspection. Replace if damaged or

plugged.

A WARNING

to avoid a fire hazard, keep ieaves,

grass, and other combustihie materiais

away from hot engine and muffler.

CARBURETOR ADJUSTMENT

■»The carburetor has been adjusted at the

factory. It should not need to be reset. If

a black exhaust is noted, check the air

cleaner first. An over-rich mixture is usu

ally caused by a poorly serviced or

clogged air cleaner element, not an

improperly adjusted carburetor. If read

justment is necessary, refer to the Engine

Owner’s Manual or contact your local

authorized dealer.

FUEL FILTER

If engine is equipped with a fuel filter,

clean it every 50 hours of operation (see

Engine Owner’s Manual for instructions).

OFF-SEASON STORAGE

When storing the unit for more than 30

days, follow the storage guidelines below

to help ensure that the unit will be in good

condition for future use.

Before storing the unit, stop the engine,

allow the engine to cool and disconnect

the spark plug wire from the spark plug.

• Thoroughly clean the unit.

• Tighten or replace any loose or missing

hardware.

• Sand and touch-up any rusted or

chipped painted surfaces.

• Inspect for missing or damaged parts.

Repair or replace parts as necessary.

• Refer to the Engine Owner’s Manual for

proper engine storage information and

service the engine as instructed. Be sure

to protect the fuel system and carburetor

from fuel gum deposits that can develop

during extended storage.

• Cover the unit with a suitable protective

cover that does not retain moisture.

NOTE; Do not use a plastic cover. A

plastic cover will retain moisture and

promote corrosion.

A CAUTION

Never store unit in an area where gaso

line vapors may reach an open flame or

spark.

Failure to follow this instruction can

result in personal injury or property

damage.

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