This manual provides detailed information and
procedures to safely repair and maintain the following:
Husqvarna Z448, Z454, Z454X, Z460, and Z460X
This manual is intended to introduce and guide the user
through the latest factory-approved troubleshooting and
repair techniques and practices.
Before you attempt to troubleshoot or make repairs, you
must be familiar with the operation of this machine. Refer
to the operator manual and parts manual for specific
information on these topics.
THE INFORMATION CONTAINED IN THIS MANUAL IS
BASED ON MACHINES MANUFACTURED UP TO THE
TIME OF PUBLICATION. HUSQVARNA RESERVES
THE RIGHT TO CHANGE ANY OF THIS INFORMATION
Proposition 65 Warning
Certain vehicle components contain or emit
chemicals known to the State of California to
cause cancer and birth defects or other
How to Use This Manual
This manual is designed to provide multiple ways to
locate and access repair information.
Read each section in its entirety before beginning a
procedure. Proper understanding of machine operation
and components is the key to successful diagnostics and
Make use of the special information features within this
manual in order to be better prepared to perform
repairs. Always follow manual procedures and safety
guidelines. Never take shortcuts.
Table of Contents
Major machine components or topics of interest are
separated into specific chapters. Each manual lists
these chapters in a main Table of Contents.
Required Tools and Materials
Some procedures will require the use of specific tools
and/or materials. These tools and/or materials will be
listed for reference as needed.
Quick Reference Specifications
A list of all machine specifications can be found in
Chapter 2, "Specifications". This listing contains the
• Product Identification Number Location
• Engine Identification Number Location
• Component Location
• Machine Specifications
• Special Torques
• Hex Head Cap Screw Torques
Warnings and Cautions
Warning and caution indicators are located throughout
the manual at specific points of interest. These notices
are given to prevent personal injury, death, and/or
equipment damage. Always heed these notices and
practice common sense when performing any
maintenance or repair procedure.
Note and Important
Special notes are given in order to draw attention to
detailed instructions. These notes are intended to give
further important information regarding the machine
and/or a step in a procedure.
Troubleshooting charts are provided in chapters 5–7, to
aid in the diagnostic process. Use these suggestions to
aid in identifying a potential mechanical, electrical, or