Husqvarna T425 Workshop Manual page 7

2 Introduction and safety regulations
2.1 General information
This Workshop Manual provides a comprehensive
description of how to trouble shoot, repair and
test the chain saw. A description of different safety
measures that should be taken during repair work
is also given.
2.2 Safety
Note! The section dealing with safety must be
read and understood by everyone carrying out
repairs or service on the chain saw.
Warning symbols can be found in this Workshop
Manual and on the chain saw. See "Symbols on
the saw" and "Symbols in the Workshop Manual".
If any warning symbol on the chain saw has been
damaged or is missing, a new one must be fi tted
as soon as possible in order to achieve the highest
degree of safety when using the chain saw.
2.3 Target group
This Workshop Manual is written for personnel who
are assumed to have general knowledge of repair-
ing and servicing chain saws.
The Workshop Manual must be read and under-
stood by personnel who will carry out repair work
and service on the chain saw. The manual is also
suitable to use when training new employees.
2.4 Modifi cations
Modifi cations will be successively introduced on
the chain saw during production. When these
modifi cations affect service and/or spare parts, a
separate service message will be sent out on each
occasion. This means that in time this Workshop
Manual will become out of date. In order to prevent
this, the Manual should be read together with all
service messages concerning the chain saw in
question.
2.5 Tools
Special tools are required for some stages. All
service tools are listed in the Workshop Manual.
Usage is evident from the respective section.
Always use Husqvarna's original:
• Spare parts
• Service tools
• Accessories
Introduction and safety regulations
2.6 Structure
This Workshop Manual can be used in two differ-
ent ways:
• Repair of a specifi c system on the chain saw.
• Dismantling and assembly of the entire chain
saw.
Repair of a specifi c system
When a specifi c system on the chain saw must be
repaired, do as follows:
1. Look up the page for the system in question.
2. Carry out the steps: Dismantling
Dismantling and assembly of the entire chain saw
When taking apart and putting back together the
whole chain saw, do as follows:
1. Look up the chapter "Repair instructions", which
deals with The starter and carry out the instruc-
tions listed under the heading Dismantling.
2. Work forward in the Manual and carry out Dis-
mantling in the order set out in the sections.
3. Go back to Starter and carry out the instruc-
tions under Cleaning and checking.
4. Work forward in the Manual and carry out
Cleaning and checking in the order set out in
the sections.
5. Order or take out all requisite spare parts from
the stores.
6. Look up the chapter "Repair instructions",
which deals with The crankcase and carry out
the instructions under Assembly.
7. Work backwards in the Manual and carry out
Assembly in the order set out in the sections.
In order to increase the basic understanding, some
sections include a Description of the unit in ques-
tion.
2.7 Numbering
Position references to components inside the fi g-
ures are designated A, B, etc.
The fi gures are numbered 1, 2 etc.
The position references and fi gure numbers restart
in each new section.
Cleaning and checking
Assembly
English -
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