Manual Husqvarna 236 (page 11 of 464) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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GENERAL SAFETY PRECAUTIONS

English – 11

1153134-26 Rev. 3 2010-02-11

General rules

• Only use cutting equipment recommended by us!

See instructions under the heading Technical data.

• Keep the chain’s cutting teeth properly sharpened!

Follow our instructions and use the recommended

ﬁle gauge. A damaged or badly sharpened chain

increases the risk of accidents.

• Maintain the correct depth gauge setting! Follow

our instructions and use the recommended depth

gauge clearance. Too large a clearance increases the

risk of kickback.

• Keep the chain properly tensioned! If the chain is

slack it is more likely to jump off and lead to increased

wear on the bar, chain and drive sprocket.

• Keep cutting equipment well lubricated and

properly maintained! A poorly lubricated chain is

more likely to break and lead to increased wear on the

bar, chain and drive sprocket.

Cutting equipment designed to reduce

kickback

The only way to avoid kickback is to make sure that the

kickback zone of the bar never touches anything.

By using cutting equipment with ”built-in” kickback

reduction and keeping the chain sharp and well-

maintained you can reduce the effects of kickback.

Bar

The smaller the tip radius the lower the chance of kickback.

Chain

A chain is made up of a number of links, which are

available in standard and low-kickback versions.

Some terms that describe the bar and chain

To maintain the safety features of the cutting equipment,

you should replace a worn or damaged bar or chain with a

bar and chain combinations recommended by Husqvarna.

See instructions under the heading Technical Data for a list

of replacement bar and chain combinations we

recommend.

Bar

• Length (inches/cm)

• Number of teeth on bar tip sprocket (T).

• Chain pitch (inches). The spacing between the drive

links of the chain must match the spacing of the teeth on

the bar tip sprocket and drive sprocket. Number of drive

links. The number of drive links is determined by the

length of the bar, the chain pitch and the number of teeth

on the bar tip sprocket.

• Bar groove width (inches/mm). The groove in the bar

must match the width of the chain drive links.

• Chain oil hole and hole for chain tensioner. The bar must

be matched to the chain saw design.

Chain

• Chain pitch (inches)

• Drive link width (mm/inches)

• Number of drive links.

Sharpening your chain and adjusting

depth gauge setting

General information on sharpening cutting teeth

• Never use a blunt chain. When the chain is blunt you

have to exert more pressure to force the bar through the

wood and the chips will be very small. If the chain is very

blunt it will produce wood powder and no chips or

shavings.

• A sharp chain eats its way through the wood and

produces long, thick chips or shavings.

• The cutting part of the chain is called the cutter and

consists of a cutting tooth (A) and the depth gauge (B).

The cutters cutting depth is determined by the

difference in height between the two (depth gauge

setting). (7)

When you sharpen a cutting tooth there are four important

factors to remember.

1 Filing angle

2 Cutting angle

3 File position

4 Round ﬁle diameter

It is very difﬁcult to sharpen a chain correctly without the

right equipment. We recommend that you use our ﬁle

gauge. This will help you obtain the maximum kickback

reduction and cutting performance from your chain.

See instructions under the heading Technical data for

information about sharpening your chain.

Sharpening cutting teeth

To sharpen cutting teeth you will need a round ﬁle and a ﬁle

gauge. See instructions under the heading Technical data

for information on the size of ﬁle and gauge that are

recommended for the chain ﬁtted to your chain saw.

• Check that the chain is correctly tensioned. A slack

chain will move sideways, making it more difﬁcult to

sharpen correctly.

• Always ﬁle cutting teeth from the inside face. Reduce

the pressure on the return stroke. File all the teeth on

one side ﬁrst, then turn the chain saw over and ﬁle the

teeth on the other side.

WARNING! Faulty cutting equipment or

the wrong combination of bar and saw

chain increases the risk of kickback!

Only use the bar/saw chain

combinations we recommend, and

follow the ﬁling instructions. See

instructions under the heading Technical

data.

IMPORTANT! No saw chain design eliminates the

danger of kickback.

WARNING! Any contact with a rotating

saw chain can cause extremely serious

injuries.

WARNING! Always wear gloves, when

working with the chain, in order to

protect your hands from injury.

WARNING! Departure from the

sharpening instructions considerably

increases the risk of kickback.

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Husqvarna 236 Manual

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