Operation; To Do Before You Operate The Product; Premixed Fuel; To Mix Fuel - Husqvarna 525HF3S Manual Del Usuario

Introduction
WARNING: Read and understand the safety
chapter before you use the product.

To do before you operate the product

• Examine the work area and remove loose objects.
• Do a check of the cutting unit. Refer to
check of the blades and blade guard on page 7 .
• Make sure that the gear housing is correctly
lubricated.
• Make sure that the safety devices of the product
operates correctly. Do not use the product without all
safety devices installed correctly.
• Make sure that all screws and nuts are tight.
• Make sure that all covers are attached correctly and
not damaged before you start the product.
• Make sure that the cutting unit stops when the
engine is at idle speed.
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 of a good
quality, 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.
• We recommend that you use gasoline of a higher
octane grade for work with continuously high rpm.
1118 - 001 - 05.09.2019

Operation

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.
To do a
To mix gasoline and two-stroke oil
Gasoline, liter
5
10
15
20
US gallon
1
2 1/2
5
1. Fill half the quantity of gasoline in a clean container
for fuel.
2. Add the full quantity of 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.
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.
Two-stroke oil,
liter
2% (50:1)
0.10
0.20
0.30
0.40
US fl. oz.
2 ½
6 ½
12 ⅞
9