McCulloch VIRGINIA MH 542 User Manual download pdf (Page 6)

ENGLISH - 4

H. Regular maintenance

Technical data

G. Carburettor adjustment

Your machine is fitted with a highly sensitive

low emission carburettor. We therefore recom-

mend that carburettor adjustments are only

made by an authorised servicing dealer,

equipped with instruments that will ensure

best performance with lowest emission levels.

To adjust the idle speed, however, proceed as fol-

lows:

With engine running and warm, slowly turn screw

‘I’ clockwise until the engine runs smoothly with a

consistent noise level but without making the

blade move.

If the cutting attachment does move or the engine

runs too fast, slowly turn screw ‘I’ in an anticlock-

wise direction until the correct speed is obtained.

Precise numerical engine speed settings are men-

tioned in the technical detail chart in the front of

the operator’s manual.

Warranty may be invalidated from incorrect

carburettor adjustment made by persons

other than an authorised dealer.

Every 10 work hours

1 Air filter cleaning

Never operate hedgetrimmer without the air fil-

ter, this will damage the engine.

• Remove the 2 air cleaner cover screws.

• Take off the air cleaner cover and remove air

filter from the back of the cover.

• Clean air filter in warm soapy water. DO NOT

USE PETROL.

• Allow filter to dry.

• Re-install filter.

Note: replace filter if torn or damaged.

2 Remove spark plug

• Clean and adjust electrodes setting.

Every 50 work hours

3 Change spark plug

Long storage

• Empty fuel tank and run engine dry.

Displacement (cc) 25

Bore 35

Stroke (mm) 26

Engine output din hp/kW 0.9/0.7

Engine speed at max power 8,000 - 9,000

Fuel tank capacity (cc) 370

Weight (Kg) 4.5/4.8

Sound pressure level (at the operator’s ear) LpAav (dBA) (ISO7917) 83/100dB(A)

Guaranteed noise level LwAav (dBA) (ISO 10884) 108

Measured sound power level LwAav (dBA) (ISO 10884) 106

Vibration levels recorded at the operators hand position idle/racing 4/8 m/s

1 2 3 4 5 6 7

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McCulloch VIRGINIA MH 542 User Manual Page 6

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