Husqvarna 340E EPA II, 350 epa I Cooling system, Air Injection centrifugal cleaning, Winter use

Page 40

MAINTENANCE

Cooling system

To keep the working temperature as low as possible the machine is equipped with a cooling system.

The cooling system consists of:

1Air intake on the starter.

2Air guide plate.

3Fins on the flywheel.

4Cooling fins on the cylinder.

5Cylinder cover (directs cold air over the cylinder).

5

4

3

2

1

Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.

Note! The cooling system on a chain saw with catalytic converter must be cleaned daily. This is particularly important on chain saws with catalytic converters, because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit.

”Air Injection” centrifugal cleaning

Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan.

IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the flywheel, the space around the flywheel, inlet pipe and carburetor compartment.

40 – English

Winter use

Running problems can occur when using the machine in the cold and snowy conditions caused by:

•Too low engine temperature.

•Icing of the air filter and carburetor. Special measures are therefore often required:

•Partly mask the air inlet on the starter to increase the working temperature of the engine.

•Preheat the intake air to the carburetor by using the heat from the cylinder.

Temperature 0°C (32°F) or colder:

A special winter kit, including necessary parts and assembly instructions, is available for using the machine in cold temperatures.

Before usage a hole is made in the cylinder cover and a winter flap is fitted (see illustration below). Twist the winter flap so that preheated air from the cylinder can pass into the carburetor space preventing icing of the air filter, etc.

For temperatures below -5°C (23°F) and/or in snow conditions there is also:

•a special cover (A) for the starter housing

•a winter plug (B) for the air nozzle that is fitted as shown.

These reduce the flow of cooling air and prevent large amounts of snow from being sucked into the carburetor space.

For further information see assembly instructions for the winter kit.

CAUTION! When the winter plug is fitted the winter flap must be open!

IMPORTANT! If the temperature rises above -5°C

(23°F) or 0°C (32°F) respectively the machine MUST be restored to its normal set-up. Otherwise there is a risk of overheating, which can cause severe engine damage.

115 09 86-95 Rev.2 2007-11-27

Page 39 Page 41
Image 40
Page 39 Page 41
Contents EPA II 340e EPA 345e EPA II 350 EPA KEY to Symbols Symbols on the machineSymbols in the operator’s manual You will find the following labels on your chain sawEPA Contents Introduction Dear customerWhat is WHAT? What is what on the chain saw?Before using a new chain saw General Safety PrecautionsAlways use common sense Personal protective equipment Machine′s safety equipmentChain brake and front hand guard General Safety Precautions Chain catcher Throttle lockoutRight hand guard Stop switch Cutting equipmentVibration damping system MufflerBar Cutting equipment designed to reduce kickbackChain Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment 345eChecking chain lubrication Filling with chain oilChain drive sprocket Needle bearing lubrication Checking wear on cutting equipmentAssembly Fitting the bar and chain340, 340e 345eAssembly Fuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingCold engine Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique TermsLimbing Safe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreat FellingDirectional cuts Felling cutFreeing a tree that has fallen badly Freeing a trapped treeHow to avoid kickback What is kickback?General advice Cutting trees and branches that are in tensionCutting the trunk into logs Carburetor adjustment MaintenanceGeneral Correctly adjusted carburetor High speed jet HChecking the brake trigger ImmediatelyMuffler Replacement of broken recoil and drive disc springs Starter Changing a broken or worn starter cord Tensioning the recoil springAir filter Spark plugFitting the starter Drive disc spring BWhen making adjustments Needle bearing lubrication Adjustment of the oil pumpLubricating the bar tip sprocket Air Injection centrifugal cleaning Temperature 0C 32F or colderCooling system Winter useMaintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataSaw chain filing and file gauges Bar and chain combinations050 H30 058 H25 Federal Emission Control Warranty Statement Your Warranty Rights and ObligationsAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautions´z+R§e¶57¨ 115 09 86-95 Rev.2 1150986-95
Top Page Image Contents