Bedienungsanleitung Husqvarna 450 II (Seite 24 von 120) (Englisch, Portugiesisch, Spanisch)

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5. Make sure that the edges of the cutters point forward

on the top edge of the guide bar. (Fig. 38)

6. Align the hole in the guide bar with the chain adjuster

pin and install the clutch cover.

7. Tighten the bar nut finger tight.

8. Tighten the saw chain. Refer to

To adjust the tension

of the saw chain on page 35

for instructions.

9. Tighten the bar nut.

Operation

Introduction

WARNING: Read and understand the safety

chapter before you use the product.

To do a function check before you use

the product

1. Make sure that the chain brake operates correctly

and that it is not damaged.

2. Make sure that the right hand guard is not damaged.

3. Make sure that the throttle lockout operates correctly

and that it is not damaged.

4. Make sure that the start/stop switch operates

correctly and that it is not damaged.

5. Make sure that there is no oil on the handles.

6. Make sure that the vibration damping system

operates correctly and that it is not damaged.

7. Make sure that the muffler is correctly attached and

that it is not damaged.

8. Make sure that all parts of the product are correctly

attached and not damaged or missing.

9. Make sure that the chain catcher is correctly

attached.

10. Do a check of the saw chain tension. (Fig. 39)

Fuel

This product has a two-stroke engine.

CAUTION: Incorrect type of fuel can result in

engine damage. Use a mixture of gasoline

and two-stroke oil.

Premixed fuel

• Use Husqvarna premixed alkylate fuel for best

performance and extension of the engine life. This

fuel contains less harmful chemicals compared to

regular fuel, which decreases harmful exhaust

fumes. The quantity of remains after combustion is

lower with this fuel, which keeps the components of

the engine more clean.

To mix fuel

Gasoline

• Use good quality unleaded gasoline with a maximum

of 10% ethanol contents.

CAUTION:

Do not use gasoline with an

octane grade less than 90 RON/87 AKI.

Use of a lower octane grade can cause

engine knocking, which causes engine

damages.

Two-stroke oil

• For best results and performance use Husqvarna

two-stroke oil.

• If Husqvarna two-stroke oil is not available, use a

two-stroke oil of good quality for air-cooled engines.

Speak to your servicing dealer to select the correct

oil.

CAUTION: Do not use two-stroke oil for

water-cooled outboard engines, also

referred to as outboard oil. Do not use oil

for four-stroke engines.

To mix gasoline and two-stroke oil

Gasoline, liter Two-stroke oil,

liter

2% (50:1)

5 0.10

10 0.20

15 0.30

20 0.40

CAUTION: Small errors can influence the

ratio of the mixture drastically when you mix

small quantities of fuel. Measure the quantity

of oil carefully and make sure that you get

the correct mixture.

(Fig. 40)

1. Fill half the quantity of gasoline in a clean container

for fuel.

2. Add the full quantity of oil.

3. Shake the fuel mixture.

4. Add the remaining quantity of gasoline to the

container.

5. Carefully shake the fuel mixture.

1286 - 002 - 03.06.2020

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