General Instructions; Special Instructions - Husqvarna 531RS Workshop Manual

Introduction and safety regulations

1.7 General instructions

The workshop where repairs are to be done must be
equipped with safety equipment as set out in local
regulations.
No one may repair the product unless they have read
and understood the contents of this Workshop Manual.
This Workshop Manual contains the following warning
texts in relevant places. Warning texts are positioned
before the procedures they refer to.
WARNING!
The warning text warns of the risk of
personal injury if the instructions are not
followed.
CAUTION!
The caution text warns of the risk of
machine damage if the instructions are
not followed.
NOTE! This text warns of material damage if
the instructions are not followed.

1.8 Special instructions

The fuel used in the product has the following
hazardous properties:
1. The fluid and its fumes are poisonous.
2. Can cause skin irritation.
3. Is highly inflammable.
• Do not start the engine without the clutch drum and
driveline fitted as the clutch can become detached
and cause severe personal injury.
• Do not touch hot components, e.g. the muffler and
clutch before they have cooled sufficiently to avoid
burns.
• Avoid getting fuel or oil on your skin or in your
mouth.
• Use a barrier cream on your hands. This reduces
the risk of infection and makes dirt easier to wash
away.
• Long term contact with engine oil can represent a
health hazard.
• Never start the engine indoors. Running an engine
in a confined or badly ventilated area can result
in death due to asphyxiation or carbon monoxide
poisoning.
4 - English
• Wipe up oil spills from the floor immediately to avoid
slipping.
• Do not use tools that are worn or fit badly, for ex-
ample on nuts and bolts.
• Always work on a clean bench.
• Always work logically to ensure all parts are fitted
correctly and that nuts and bolts are tightened.-
• Use the special tools where recommended to be
able to carry out the work correctly and efficiently.
• When using compressed air, do not direct the jet
towards your body. Air can penetrate into the blood
stream, which can endanger life.
• Wear protective earplugs or earmuffs when test
running.
• After test running, do not touch the muffler until
it has cooled down. Risk of burns. Use protective
gloves when working with the muffler.
• Exercise care to ensure the starter spring does not
fly out and cause personal injury. Wear protective
glasses. If the spring tension is activated on the
starter pulley when it is to be taken up, the spring
can fly out and cause personal injury.
• Keep in mind the fire risk. The machine may emit
sparks, which cause ignition.
• Ensure all surfaces are clean and free from gasket
residue, etc. When cleaning use a tool that will not
damage the contact face. Any scratches or uneven-
ness should be removed using a flat fine cut file.
• Always replace a sealing ring that has been dis-
mantled. The sensitive sealing lip can easily be
damaged resulting in inferior sealing capacity.
Surfaces which the seal shall seal against must also
be completely undamaged. Lubricate the sealing
lip with grease before it is fitted and ensure that it
is not damaged e.g. by shoulders and splines on a
shaft. Use tape or a conical sleeve as protection. It
is important that the sealing ring faces in the right
direction for it to act as it is intended.
1.9 Tools
Special tools are required for some stages. All service
tools are listed in the Workshop Manual. Usage is made
apparent in each section.
We recommend the use of special tools in order to avoid
expensive damage to parts in question and personal
injury and to provide an efficient repair procedure.
Always use Husqvarna's original:
• Spare parts