Husqvarna 966451906 manual Introduction and safety instructions

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Introduction and safety instructions

2 Introduction and safety instructions

2.1 General

This Workshop Manual describes in detail how to be troubleshoot, repair and test the chain saw. 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 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”. A new warning symbol decal must be applied as soon as possible if a warning symbol on the chain saw has been damaged or is missing so that the greatest level of safety can be maintained 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 for use when training new employees.

2.4 Modifications

Any modifications to the chain saw will be gradually introduced into ongoing production. As these modi- fications affect service and/or spare parts, specific service information will be sent out on each occa- sion. This means that in time this Workshop Manu- al will become out of date. In order to prevent this, the Manual should be read together with all service information 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 made apparent in each section.

Always use Husqvarna’s original:

Spare parts

Service tools

Accessories

2.6 Structure

This Workshop Manual can be used in two different ways:

Repair of a specific system on the chain saw.

Dismantling and assembly of the entire chain saw.

Repair of a specific system

When a particular system on the chain saw 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 chain saw. Proceed as follows when the chain saw is to be dismantled and assembled:

1.Open the “Repair instructions” chapter which deals with the Starter and carry out the in- structions outlined under the Dismantling heading.

2.Work forward in the Manual and carry out Dis- mantling in the order set out in the sections.

3.Go back to the Starter and carry out the in- structions 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 Assem- bling in the order set out in the sections.

Some sections include an introductory Descrip- tion of the actual unit in order to increase the basic understanding.

2.7 Numbering

Position references to components inside the fig- ures are designated A, B, etc.

The figures are numbered 1, 2 etc.

The position references and figure numbers restart

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Contents 562XP/XPG Page Contents Index Vibration damping system Contents Introduction and safety regulationsIntroduction and safety instructions Special Instructions General InstructionsSymbols in the Workshop Manual Symbols on the sawTechnical data NGK CMR6H 12a Service tools12b 13d 13a 13b 13c Key Service dataEnglish Contents Safety equipmentDismantling the chain brake Cleaning and inspectionAlt Assembling the chain brake Do not touch the muffler until it has cooled. Risk of burns Dismantling the mufflerAssembling the muffler Functional inspectionDismantling the start/stop control Replacing the chain catcherResistance test stop function Assembling the start/stop controlCleaning and inspection Safety equipment Repair instructions Dismantling the starter Cleaning and inspection Clean the parts and checkTensioning the return spring Replacing a broken or worn starter cordWear protective glasses Replacing a broken return spring Starter assemblyDismantling the ignition module and flywheel Assembling the ignition module and flywheel Min 60 mm Dismantling the centrifugal clutchDismantling the oil pump and screen Assembly of centrifugal clutchDismantling the intake system Assembling the oil pump and screenAssembling the intake system Design CarburettorFunction Dismantling the carburettor English Assembly Cleaning and inspection Clean all units in clean petrolEnglish Fitting on the saw Pressure testing the carburettorMake sure that the following components are correctly fitted Opening pressure inwards Tank unitVenting the fuel tank Test Opening pressure outwardsVibration damping system Dismantle Replacing the fuel filterReplacing the fuel hose/return hose Replacing the fuel pump PurgeDismantling the piston and cylinder English Piston ring breakage Faults and causes Score marks on the piston aAssembling the piston and cylinder Carbon build-up BLoosen Pressure testing the cylinderDismantling the crankshaft and crankcase Page Repair Instructions Sealing rings Assembling a complete crankshaft Replacing the bar bolt Repairing damaged threadsReplacing a bar bolt with intact crankcase English Troubleshooting Starting TroubleshootingIdling low speed High speed Troubleshooting methodsAcceleration and retardation 2011W31 115 26