Husqvarna 49 manual Cooling system, Daily maintenance, Centrifugal cleaning Air Injection

MAINTENANCE

Cooling system

To obtain the lowest possible running temperature the saw is equipped with a cooling system.

Below you will find some general maintenance instructions. If you have more questions, contact your servicing dealer.

Daily maintenance

1. Check the throttle trigger

for smooth operation. If

The cooling system consists of:

1.Air intake on the starter unit.

2.Air guide plate.

3.Fan blades on the flywheel.

4.Cooling fins on the cylinder.

5.Cylinder cowling (supplies cold air over the cylinder).

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any binding occurs, or if

engine fails to return to

idle, the saw should be

taken to your dealer,

before it is used again.

Also, be sure that the

trigger cannot be pulled

until the throttle trigger

lockout is depressed.

2. Clean the chain brake

and check its function

according to the

instructions. Make sure

that the chain catcher is

undamaged. Otherwise

replace it immediately.

3. Clean or replace the air

filter as necessary. Check

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

Centrifugal cleaning ”Air Injection”

Centrifugal cleaning means the following:

All air to the carburetor is carried through the starter. Dirt and dust is centrifuged away by the cooling fan.

IMPORTANT! In order to keep the function of the centrifugal cleaning, a continous maintenance and care must be made.

• Clean the air intake to the starter, the fan wings of the flywheel, the space around the flywheel, inlet pipe and carburetor space.

	for damage or holes.
4.	The bar should be turned
	daily for more even wear.
	Check the lubrication hole
	in the bar, to be sure it is
	not clogged. Clean the
	bar groove, if the bar has
	a sprocket tip, this should
	be lubricated.
5.	Check the function of the
	oiler to be sure the bar
	and chain receive proper
	lubrication.
6.	Sharpen the chain and
	check its tension and
	condition. Check the drive
	sprocket for wear.
	Replace if necessary.
7.	Check the starter and
	starter cord for wear or
	damage. Clean the air
	intake slots on the starter
	housing.
8.	Check for any loose nuts
	and screws and retighten
	if necessary.
9.	Test the stop switch to be
	sure it shuts off the
	engine.

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32 – English