Operation; To Check Before Starting; Premixed Fuel - Husqvarna 525P4S Manual De Usuario

Introduction
WARNING:
product, you must read and understand the
safety chapter.

To check before starting

1. Inspect the working area. Remove any objects that
could be thrown out.
2. Check the saw chain. Never use blunt, cracked or
damaged equipment.
3. Check that the product is in perfect working order.
4. Check that all nuts and screws are tight.
5. Make sure the chain is adequately lubricated, refer
To check the chain lubrication on page 23 .
to
6. Check that the saw chain always stops when the
engine is idling.
7. Only use the product for the purpose it was intended
for.
8. Make sure the handle and safety features are in
order. Never use a machine that has any parts
missing or has been modified in relation to the
specification.
Fuel
This product has a two-stroke engine.
CAUTION:
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
CAUTION:
octane number less than 90 RON (87 AKI).
This can cause damage to the product.
CAUTION:
more than 10% ethanol concentration (E10).
This can cause damage to the product.
12

Operation

Before you operate the
Incorrect type of fuel can
Do not use gasoline with an
Do not use gasoline with
CAUTION:
This can cause damage to the product.
• Always use new unleaded gasoline with a minimum
octane number of 90 RON (87 AKI) and with less
than 10% ethanol concentration (E10).
• Use gasoline with a higher octane number if you
frequently use the product at continuously high
engine speed.
• Always use a good quality unleaded gasoline/oil
mixture.
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:
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
5
10
15
20
CAUTION:
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.
Do not use leaded gasoline.
Do not use two-stroke
Two-stroke oil,
liter
2% (50:1)
0.10
0.20
0.30
0.40
Small errors can influence
703 - 008 - 02.11.2022