Husqvarna 129C Workshop Manual page 7

2 Introduction and safety instructions
2.1 General
This Workshop Manual describes in detail how
to troubleshoot, repair and test the trimmer.
A description of different safety steps that must be
taken during repair work is also given.
2.2 Safety
Note: The section dealing with safety must be
read and understood by all those carrying out
repair work or service on the trimmer.
Warning symbols can be found in this Workshop
Manual and on the trimmer. See "Symbols on the
trimmer" and "Symbols in the Workshop Manual".
A new warning symbol decal must be applied
as soon as possible if a warning symbol on the
trimmer has been damaged or is missing so that
the greatest level of safety can be maintained when
using the trimmer.
2.3 Target group
This Workshop Manual is written for personnel
who are assumed to have general knowledge of
repairing and servicing trimmers.
The Workshop Manual must be read and
understood by personnel who will carry out repair
work and service on the trimmer. The Manual is
also suitable for use when training new employees.
2.4 Modifications
Any modifications to the trimmer will be gradually
introduced into ongoing production. As these
modifications affect service and/or spare parts,
specific service information 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Workshop Manual will become out of date.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 information concerning the trimmer
in question.
2.5 Tools
Special tools are required for some stages. All
service tools are listed in the Workshop Manual.
Usage is made apparent in each section.
Always use Husqvarna's original:
• Spare parts
• Service tools
• Accessories
Introduction and safety instructions
2.6 Structure
This Workshop Manual can be used in two different
ways:
• Repair of a specific system on the trimmer.
• Dismantling and assembly of the entire trimmer.
Repair of a specific system
When a particular system on the trimmer is to be
repaired, proceed as follows:
1. Look up the page for the system in question.
2. Carry out the following steps:
• Dismantling
• Cleaning and inspection
• Assembly
Dismantling and assembling the trimmer.
Proceed as follows when the trimmer is to be
dismantled and assembled:
1. Open the "Repair instructions" chapter which
deals with the Starter and carry out the
instructions outlined under the Dismantling
heading.
2. Work forward in the Manual and carry out
Dismantling in the order set out in the sections.
3. Go back to the Starter and carry out the
instructions under Cleaning and Inspection.
4. Work forward in the Manual and carry out
Cleaning and Inspection in the order set out in
the sections.
5. Order or collect all requisite spare parts from
the stores.
6. Look up the "Repair instructions" chapter which
deals with the Crankcase and carry out the
instructions outlined in Assembling.
7. Work back in the Manual and carry out
Assembling in the order set out in the sections.
Some sections include an introductory Description
of the actual unit in order to increase the basic
understanding.
2.7 Numbering
Position references to components inside the
figures are designated A, B, etc.
The figures are numbered 1, 2 etc.
The position references and figure numbers restart
in each new section.
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