Manual Defort DPC-2220 (page 15 of 72) (English, German, French)

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TWO-STROKE OIL

• Never use two-stroke oil intended for water-cooled

engines, sometimes referred to as outboard oil (rat-

ed TCW).

• Never use oil intended for four-stroke engines.

MIXING RATIO

Petrol, litre Two-stroke oil, litre

2% (1:50) 3% (1:33)

5 0,10 0,15

10 0,20 0,30

15 0,30 0,45

20 0,40 0,60

MIXING

• Always mix the petrol and oil in a clean container

intended for fuel.

• Always start by ﬁ lling half the amount of the petrol

to be used. Then add the entire amount of oil. Mix

(shake) the fuel mixture. Add the remaining amount

of petrol.

• Mix (shake) the fuel mixture thoroughly before ﬁ lling

the machine’s fuel tank.

• Do not mix more than one month’s supply of fuel at

a time.

• If the machine is not used for some time the fuel tank

should be emptied and cleaned.

Chain oil

• We recommend the use of special oil (chain oil) with

good adhesion characteristics.

• Never use waste oil. This results in damage to the oil

pump, the bar and the chain.

• It is important to use oil of the right grade (suitable

viscosity range) to suit the air temperature.

• In temperatures below 0°C (32°F) some oils become

too viscous. This can overload the oil pump and re-

sult in damage to the oil pump components.

• Contact your service agent when choosing chain oil.

FUELLING

WARNING! Taking the following precautions,

will lessen the risk of ﬁ re: Do not smoke and

do not place any hot objects in the vicinity of

fuel. Always stop the engine and let it cool for a few

minutes before refuelling. When refuelling, open the

fuel cap slowly so that any excess pressure is released

gently. Tighten the fuel cap carefully after refuelling.

Always move the machine away from the refuelling

area before starting.

ASSEMBLY

FITTING THE BAR AND CHAIN

WARNING! Switch off the engine before car-

rying out any checks or maintenance. The

stop switch automatically returns to the start

position. In order to prevent unintentional starting, the

spark plug cap must be removed from the spark plug

when assembling, checking and/or performing mainte-

nance.

Always wear gloves, when working with the chain, in

order to protect your hands from injury.

Check that the chain brake is in disengaged position by

moving the front hand guard towards the front handle.

Remove the bar nuts and remove the clutch cover

(chain brake). Take off the transportation ring.

Fit the bar over the bar bolts. Place the bar in its rear-

most position. Place the chain over the drive sprocket

locate it in the groove on the bar. Begin on the top edge

of the bar.

Make sure that the edges of the cutting links are facing

forward on the top edge of the bar.

Fit the clutch cover (the chain brake) and locate the

chain adjuster pin in the hole in the bar. Check that

the drive links of the chain ﬁ t correctly over the drive

sprocket and that the chain is correctly located in the

groove in the bar. Tighten the bar nuts ﬁ nger tight.

Tension the chain by turning the chain tensioning screw

clockwise using the combination spanner. The chain

should be tensioned until it does not sag from the un-

derside of the bar.

The chain is correctly tensioned when it does not sag

from the underside of the bar, but can still be turned

easily by hand. Hold up the bar tip and tighten the bar

nuts with the combination spanner.

When ﬁ tting a new chain, the chain tension has to be

checked frequently until the chain is run-in. Check the

chain tension regularly. A correctly tensioned chain en-

sures good cutting performance and long life.

FUEL

Note! The machine is equipped with a two-stroke en-

gine and must always be run using a mixture of petrol

and twostroke oil. It is important to accurately measure

the amount of oil to be mixed to ensure that the cor-

rect mixture is obtained. When mixing small amounts

of fuel, even small inaccuracies can drastically affect

the ratio of the mixture.

WARNING! Always ensure there is adequate

ventilation when handling fuel.

Petrol

• Use good quality unleaded or leaded petrol.

• The lowest recommended octane grade is 92.

• When working with continuous high revs (e.g. limb-

ing) a higher octane is recommended.

Running-in

Avoid running at a too high speed for extended periods

during the ﬁ rst 10 hours.

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Defort DPC-2220 Manual

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