Bedienungsanleitung McCulloch M4620 (Seite 13 von 19) (Englisch, Französisch, Portugiesisch, Spanisch)

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SERVICE AND ADJUSTMENTS

WARNING: Disconnect t he spark

plug before performing maintenance, except

for carburetor adjustments.

We recommend all service and adjus tments

not listed in this manual be performed by an

Authorized Service Dealer.

MAINTENANCE SCHEDULE

Check:

Fuel mixture level Before each use....

Bar lubrication Before each use.......

Chain tension Before each use.......

Chain sharpness Before each use....

For damaged parts Before each use..

For l oose caps Before each use......

For loose fasteners Before each use...

Fo r loose parts Before each use......

Inspect and Clean:

Bar Before each use................

Complete saw After each use.......

Air filter Every 5 hours*.............

Chain brake Every 5 hours*........

Spark arresting screen

and muffler Every 25 hours*.........

Replace spark plug Yearly.

Replace fuel filter Yearly...

*HoursofOperation

AIR FILTER

CAUTION: Do not clean filter in gaso-

line or other flammable solvent to avoid

creating a fire hazard or producing harmful

evaporative emissions.

Cleaning th e air filter:

A dirty air filter decreases engine perform-

ance and increases fuel consumption and

harmful emissions. A lways clean after every

5 hours of operation.

1. Loosen 3 screws on cylinder cover.

2. Remove cylinder cover.

3. Remove air filter.

4. Clean the air filter using hot soapy water .

Rinse with clean coolwater. Air dry com-

pletely before reinstalling.

5. Reinstall air filt er.

6. Reinstall cylinder cover and 3 screws.

TIghten securely.

Air Filter

Screws

BAR MAINTENANCE

If your saw cuts to one side, has to beforced

through the cut, or been run with animproper

amount of bar lubrication it may be neces-

sary to service your bar.

A worn bar will damage your chain andmake

cutting difficult.

After each use, ensure ON/STOP switch is

in the STOP position, then clean all sawdust

from the guide bar and sprocket hole.

To maintain guide bar:

S Move ON/STOP switch to the STOP posi-

tion.

S Loosen and remove chain brake nuts and

chain brake. Remove bar and chain from

saw.

S Clean the oil holes a nd bar groove after each

5 hours of operation.

Remove Sawdust From

Guide Bar Groove

Oil Holes

S Burring of guide bar rails is a nor m al

process of rail wear. Remove t hese burrs

with a flat file.

S When rail top is uneven, use a flat file to r e-

store square edges and sides.

Correct GrooveWorn Groove

File Rail Edges

and Sides

Square

Replace guide bar w hen the groove is worn,

the guide bar is bent or cracked, or when

excess heating or burring of the rails occurs.

If replacement i s necessary , use only t he guide

bar specified for your saw in the repai r parts list

or on the decal located on the chain saw .

SPARK PLUG

The spark plug should be replaced each

year to ensure the engine starts easier and

runs better. Ignition timing is fixed and non-

adjustable.

1. Loosen 3 screws on cylinder cover.

2. Remove t he cylinder cover.

3. Pull off the spark plug boot.

4. Remove spark plug from cylinder and

discard.

5. Replace with Champion RCJ--7Y spark

plug and tighten securely with a 19 mm

socket wrench. Spark plug gap should

be 0,5 mm.

6. Reinstall the spark plug boot .

7. Reinstall the cylinder cover and 3

screws. Tighten securely.

Spark Plug

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