Introduction; General; Document Description; Target Group - Husqvarna HS 139A Workshop Manual

1.1 General

This publication covers Husqvarna engines HS 139A,
HS 166A from model year 2020. Workshop manuals are
available for models that are no longer sold.

1.2 Document description

This manual gives a full description of how to do
maintenance and repair on the product. It also gives
safety instructions that the personnel must obey.

1.3 Target group

This manual is for personnel with a general knowledge
of how to do repair and do servicing. All personnel that
do repair or do servicing on the product must read and
understand the manual.

1.4 Revisions

Changes to the product can cause changes to the
maintenance work and spare parts. Separate
information is sent out for each change.
Read the manual together with all received information
about changes to maintenance and spare parts for the
product.

1.5 Safety

WARNING: All personnel that repair or do
servicing on the product must read and
understand the safety instructions in this
workshop manual.

1.6 Servicing tools

The servicing tools for this product are standard tools. It
is not necessary to use special Husqvarna servicing
1425 - 001 - 03.06.2020

1 Introduction

HS 139A
HS 166A
tools. The instructions give information on which tools
that are necessary for each procedure.
Introduction - 3