Husqvarna 1153179-95, 357XP, 357XP-XPG, 359G E-tech, 359-G User Manual

...

Oper ator’s manual

357XP/XPG , 357XP E-tech

357XPG E-tech

359/G

Please r ead the operator’s manual carefully and make sure you understand the instructions before using the machine.

, 359 E-tech, 359G E-tech

EEEEnnnngggglllliiiisssshh

Symbols on the mac hine:

ARNING! Chain saws can be dangerous! Careless or improper use can result in ser operator or others.

Please read the operator’s manual carefully and make sure y understand the instructions before using the machine.

Always wear:

• Approved protective helmet

• Approved hearing protection

• Protective goggles or a visor Both of the operator′s hands must be

used to oper

Never operate a chain saw holding it with one hand only

Never let the guide bar tip come in contact with an

ARNING! Kickback may occur when the nose or tip of the guide bar touches an object, and cause a lightning f re

verse reaction, kicking the guide bar up and towards the operator. May cause serious personal injury.

Decompression v alve: The valve is to

reduce the pressure in the cylinder and mak use the decompression valve when starting the machine.

Ignition;

in the choke position. automatically set the stop switch to the start position.

Air purge

Adjustment of the oil pump

ate the chain sa

ting easier. You should always

e star

choke:

atal injury to the

ious or f

y object.

Set the choke control

This should

ast

KEY T O SYMBOLS

Chain brake, activated (right) Chain br (left)

Other symbols/decals on the machine refer to special cer f

or certain markets.

Symbols in the operator’s man

Switch off the engine b y moving the stop switch to the STOP position before carrying out any checks or maintenance.

Always wear approved protective glo

Regular cleaning is required.

Visual check.

Protective goggles or a visor must be w

Refuelling.

e, not activated

tiﬁcation requirements

The engine exhaust from this product contains chemical known to the State

of California to cause cancer, birth

defects or other reproductive harm.

ual:

es.

If your machine bears this symbol it is equipped with a catalytic

erter.

con

–

English

Filling with oil and adjusting oil ﬂow.

KEY T O SYMBOLS

The chain br ake must be engaged when the chain saw is star

WARNING! Kickback may occur when the nose or tip of the guide bar touches an object, and cause a lightning

ast reverse reaction, kicking the guide

f bar up and towards the operator. May cause serious personal injury.

You will ﬁnd the following labels on your chain saw:

A I

ted.

EPA III

The Emissions Compliance P Emission Compliance label indicates the n

ating hours for which the engine has been shown to

oper meet Federal emissions requirements. Category C = 50 hours, B = 125 hours, and A = 300 hours.

Maintenance, replacement, or repair of the emission

vices and system ma

control de nonroad engine repair establishment or individual.

eriod referred to on the

umber of

y be performed by any

English

–

Contents

KEY TO SYMBOLS

Symbols on the machine: ...................................... 2

Symbols in the operator’s manual: ........................ 2

CONTENTS

Contents ............................................................... 4

INTR ODUCTION

Dear customer! ..................................................... 5

WHA T IS WHAT?

What is what on the chain sa w? ........................... 6

GENERAL SAFETY PRECA UTIONS

Bef ore using a new chain saw .............................. 7

Important .............................................................. 7

Always use common sense .................................. 8

Personal protective equipment ............................. 8

Machine′s safety equipment ................................. 8

Cutting equipment ................................................. 11

ASSEMBL

Fitting the bar and chain

FUEL HANDLING

Fuel

Fueling .................................................................. 19

Fuel safety ............................................................ 19

Star

Bef

General working instructions ................................ 22

How to avoid kickback ........................................... 29

MAINTENANCE

Gener

Carburetor adjustment .......................................... 30

Checking, maintaining and servicing chain saw saf

Mufﬂer ................................................................... 33

Starter ................................................................... 34

Air ﬁlter .................................................................. 35

Spark plug ............................................................. 35

Lubricating the bar tip sprocket ............................. 36

Needle bearing lubrication .................................... 36

Adjustment of the oil pump ................................... 36

Cooling system ..................................................... 36

”Air Injection” centrifugal cleaning ......................... 37

Winter use ............................................................. 37

Heated handles ..................................................... 37

Maintenance schedule .......................................... 38

Bar and chain combinations ................................. 40

....................................... 17

....................................................................... 18

ARTING AND STOPPING

ting and stopping ............................................ 20

ORKING TECHNIQUES

ore use: ............................................................ 22

al ................................................................. 30

ety equipment

echnical data

echnical data ....................................................... 39

.................................................. 31

Saw chain ﬁling and ﬁle gauges ............................ 41

FEDERAL EMISSION CONTR OL WARRANTY

TEMENT

STA

OUR WARRANTY RIGHTS AND OBLIGATIONS 42

AMERICAN ST ANDARD SAFETY PRECAUTIONS

Saf ety precautions f

or chain saw users ................ 43

–

English

ODUCTION

INTR

Dear customer!

Cong ratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Kar of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant. During over 300 years of continuous operation, the Husqvarna factory has produced a lot of different products, from wood stoves to modern kitchen appliances, sewing machines, bicycles , motorcycles etc. In 1956, the ﬁrst motor driven lawn mowers appeared, followed by chain saws in 1959, and it is within this area Husqvarna is working today.

Today Husqvarna is one of the leading manufacturers in the world of forest and garden products, with quality as our highest pr well as for building and construction industry.

Your purchase gives you access to professional help with repairs and service whenever this may be necessary. If the retailer who sells your machine is not one of our author

It is our wish that you will be satisﬁed with your product and that it will be your companion for a long time. Think of this operator the second-hand value of the machine can be e or buyer gets the operator

Thank you for using a Husqvarna product. Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and

appearance of products without prior notice. For customer assistance, contact us at our website: www.usa.husqvarna.com

ity. We develop, manufacture and market high quality motor driven products for forestry and gardening as

ior

ual as a valuable document. By following its

′

s man

l XI ordered the construction of a factory on the banks of the Huskvarna River, for production

ized dealers, ask for the address of your nearest servicing dealer .

′

s manual, so they will also know how to properly maintain and use it.

xtended. If you e ver lend or sell this machine, mak e sure that the borrower

content (using, service, maintenance etc) the life span and

English –

WHA T IS WHA

What is what on the c hain saw?

Cylinder cover 2 Front handle 3 Chain brake and front hand guard 4 Starter 5 Chain oil tank 6 Starter handle 7 Adjuster screws carburetor 8 Choke control/Start throttle lock 9 Rear handle 10 Stop switch (Ignition on/off switch.) 11 Fuel tank 12 Mufﬂer 13 Bar tip sprocket 14 Chain 15 Bar

–

English

16 Bumper spike 17 Chain catcher 18 Clutch cover 19 Rear handle with right hand guard 20 Throttle control 21 Throttle lockout 22 Decompression valve (Model 359) Automatic

decompression v 23 Combination spanner 24 Chain tensioning screw 25 Operator’s manual 26 Transport guard 27 Oil pump adjustment screw 28 Switch for heated handle (Models 357XPG, 359G) 29 Information and warning decal 30 Product and serial number plate

e (Model 357XP)

alv

•

GENERAL SAFETY PRECA UTIONS

Bef ore using a new chain saw

Please read this manual carefully.

• Check that the cutting equipment is correctly ﬁtted and adjusted.

See instr

Assembly.

• Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Starting and Stopping.

Do not use the chain saw until sufﬁcient chain oil has

• reached the chain. See instr Lubricating cutting equipment.

• Long-term exposure to noise can result in permanent hearing impair protection.

the design of the machine be modiﬁed

without the permission of the manufacturer. Always use genuine accessories. Non-authorized modiﬁcations and/or accessories can result in serious personal injury or the death of the operator or others. Your warranty may not cover damage or liability caused by the use of nonauthorized accessories or replacement parts.

tool if used carelessly or incorrectly and

can cause serious, even fatal injuries. It is very important that you read and understand the contents of this operator’s manual.

contain chemicals that may be

carcinogenic. Avoid contact with these elements in the event of a damaged mufﬂer.

engine’s exhaust fumes, chain oil mist

and dust from sawdust can represent a health risk.

electromagnetic ﬁeld during operation.

This ﬁeld may under some circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we recommend persons with medical implants to consult their physician and the medical implant manufacturer before operating this machine.

uctions under the heading

ment. So alwa ys use approv ed hearing

ARNING! Under no circumstances may

ARNING! A chain saw is a dangerous

ARNING! The inside of the mufﬂer

ARNING! Long term inhalation of the

ARNING! This machine produces an

ARNING! Never allow children to use or be in the vicinity of the machine machine is equipped with a springloaded stop switch and can be started by low speed and force on the starter handle, even small children under some circumstances can produce the force necessary to start the machine. This can mean a risk of serious personal injury. Therefore remove the spark plug cap when the machine is not under close supervision.

. As the

Impor tant

IMPOR TANT! This chain saw for forest service is designed for forest

k such as felling, delimbing and cutting.

w You should only use the saw with the bar and chain

combinations we recommend in the chapter Technical data.

Never use the machine if you are fatigued, while under the inﬂuence of alcohol or drugs that could affect your vision, alertness, coordination or judgement.

Wear personal protective equipment. See instructions under the heading ”P

Do not modify this product or use it if it appears to have been modiﬁed by others.

Never use a machine that is faulty. Carry out the checks, maintenance and service instructions described in this manual. Some maintenance and service measures must be carried out by trained and qualiﬁed specialists. See instructions under the heading Maintenance.

Never use any accessories other than those recommended in this man the headings Cutting equipment and Technical data.

CAUTION! Always wear protective glasses or a face visor to reduce the risk of injury from thrown objects. A chain saw is capable of throwing objects, such as wood chips, small pieces of wood, etc, at great force. This can result in serious injury, especially to the eyes.

conﬁned or badly ventilated area can result in death due to asphyxiation or carbon monoxide poisoning.

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.

ersonal protectiv

ARNING! Running an engine in a

ARNING! Faulty cutting equipment or

, medication or anything

e equipment”.

ual.

See instructions under

English

–

GENERAL SAFETY PRECA UTIONS

ways use common sense

It is not possib le to cover every conceivab le situation you can face when using a chain sa and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing. Do not hesitate to contact your dealer or us if you have any questions about the use of the chain saw. We will willingly be of service and provide you with advice as well as help you to use your chain saw both efﬁciently and safely. Attend a tr aining course in chain sa w usage if possible. Your dealer, forestry school or your library can provide information about which training materials and courses are available.

w. Always exercise care

• Hearing protection

• Protective goggles or a visor

• Gloves with saw protection

• Trousers with saw protection

• Boots with saw protection, steel toe-cap and non-slip sole

• Always have a ﬁrst aid kit nearby.

• Fire Extinguisher and Shovel

Generally clothes should be close-ﬁtting without restr

icting y

our freedom of movement.

IMPORT ANT! Sparks can come from the mufﬂer , the bar and chain or other sources. Always have ﬁre extinguishing tools available if you should need them. Help prevent forest ﬁres.

•

Work is constantly in progress to improv e the design and technology - impro efﬁciency. Visit your dealer regularly to see whether you can beneﬁt from new features that have been introduced.

ements that increase your safety and

ersonal protective equipment

WARNING! Most chain saw accidents happen when the chain touches the

operator. You must use approved personal protective equipment whenever you use the machine. Per sonal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment.

Approved protective helmet

Mac hine

In this section the machine’ function are explained. For inspection and maintenance see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. See instructions under the heading, What is what?, to ﬁnd where these parts are located on your machine.

The life span of the machine can be reduced and the risk of accidents can increase if machine maintenance is not

ied out correctly and if ser

carr carried out professionally. If you need further information please contact your nearest servicing dealer.

′′

s safety equipment

s safety features and their

vice and/or repairs are not

WARNING! Never use a machine with defective safety components. Safety equipment must be inspected and maintained. See instructions under the heading Checking, maintaining and servicing chain saw safety equipment. If your machine does not pass all the checks, take the saw to a servicing dealer for repair.

Chain brake and front hand guard

Your chain saw is equipped with a chain brake that is designed to stop the chain if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them.

–

English

GENERAL SAFETY PRECAUTIONS

Take care when using your saw and make sure the kickback zone of the bar never touches any object.

• The chain brake (A) can either be activated manually y y

our left hand) or automatically by the inertia

(b release mechanism.

• The brake is applied when the front hand guard (B) is

pushed forw

• This movement activates a spring-loaded mechanism

that tightens the brake band (C) around the engine drive system (D) (clutch drum).

ards.

reduce the risk of moving chain accidentally hitting your leg or anyone or anything close by.

• To release the chain brake pull the front hand guard kw

ards, towards the front handle.

bac

• Kickback can be very sudden and violent. Most

kickbacks are minor and do not always activate the chain brake. If this happens you should hold the chain saw ﬁrmly and not let go.

• The front hand guard is not designed solely to activate the chain br reduces the risk of your left hand hitting the chain if you lose grip of the front handle.

• The chain brake must be engaged when the chain sa

• Use the chain brake as a ”parking brake” when starting and when mo

e. Another important feature is that it

ted to prevent the saw chain from rotating.

w is star

ving over short distances, to

• The way the chain brake is activ ated, either manually or automatically b depends on the force of the kickback and the position of the chain saw in relation to the object that the kickback zone of the bar strikes.

If you get a violent kickback while the kickbac k zone of the bar is f designed to be activated by the inertia in the kickback direction.

If the kickback is less violent or the kickback zone of the bar is closer to you the chain br

y the iner

tia release mechanism,

arthest away from you the chain brake is

ake is designed to

English – 9

GENERAL SAFETY PRECAUTIONS

be activated manually by the movement of your left hand.

• In the felling position the left hand is in a position that es man

mak impossible. With this type of grip , that is when the left hand is placed so that it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia action.

Will my hand always activate the chain brake during a kickback?

No. It takes a certain force to move the hand guard forward. If your hand only lightly touches the front guard or slips over it, the force ma y not be enough to trigger the chain brake. You should also maintain a ﬁrm grip of the chain saw handles while working. If you do and experience a kickback, your hand may never leave the front handle and will not activate the chain brake, or the chain brake will only activate after the saw has swung around a considerable distance. In such instances, the chain brake might not have enough time to stop the saw chain before it touches you.

There are also certain positions in which your hand cannot reach the front hand guard to activ br

ake; for example, when the saw chain is held in felling

position.

Will my inertia activated chain brake always activate during kickback in the event of a kickback?

No. First y our brak e m ust be in w orking order . Testing the brake is simple, see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. We recommend you do bef ore you begin each work session. Second the kickback must be strong enough to activate the chain brake. If the chain brake is too sensitive it would activate all the time which would be a nuisance.

Will my chain brake always protect me from injury in the event of a kickback?

No. First, the chain brake must be in working order to provide the intended protection. Second, it must be

ual activation of the chain brake

ate the chain

activated during the kickback as described above to stop the saw chain. Third, the chain brake ma y be activated b ut if the bar is too close to you the brake might not have enough time to slow down and stop the chain before the chain saw hits you.

Only you and proper working technique can eliminate kickback and its danger.

Throttle lockout

The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you g rasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lockout both move back to their original positions. This arrangement means that the throttle control is automatically locked at the idle setting.

Chain catcher

The chain catcher is designed to catch the chain if it snaps or jumps off. This should not happen if the chain is properly tensioned (see instructions under the heading Assembly) and if the bar and chain are properly serviced and maintained (see instructions under the heading General working instructions).

Right hand guard

Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle.

10 – English

GENERAL SAFETY PRECAUTIONS

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to reduce vibration and make operation easier.

The machine transfer of vibration between the engine unit/cutting equipment and the machine chain saw, including the cutting equipment, is insulated from the handles by vibration damping units.

Cutting hardwoods (most broadleaf trees) creates more vibr with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level.

Stop switch

Use the stop switch to switch off the engine.

′s vibration damping system reduces the

′s handle unit. The body of the

ation than cutting softw

WARNING! Overexposure to vibration can lead to circulatory damage or nerve

damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the ﬁngers, hands or wrists. These symptoms may be increased in cold temperatures.

oods (most conifers). Cutting

Mufﬂer

The mufﬂer is designed to keep noise levels to a minim um and to direct exhaust fumes away from the user.

WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start a ﬁre. Never start the machine indoors or near combustible material!

In areas with a hot, dry climate there is a high risk of ﬁres. These areas are sometimes subject to gov requiring among other things the mufﬂer must be equipped with an approved type of spark arrestor screen.

CAUTION! The mufﬂer gets very hot during and after use. This also applies during idling. Be aw are of the ﬁre hazard, especially when working near ﬂammable substances and/or vapours.

WARNING! Never use a saw without a mufﬂer, or with a damaged mufﬂer. A damaged mufﬂer may substantially increase the noise level and the ﬁre hazard. Keep ﬁre ﬁghting equipment handy. If a spark arrestor screen is required in your area, never use the saw without or with a broken spark arrestor screen.

ernment rules

Cutting equipment

This section describes how to choose and maintain your cutting equipment in order to:

• Reduce the risk of kickback.

• Reduce the risk of the saw chain breaking or jumping off the bar.

•

Obtain optimal cutting performance.

• Extend the life of cutting equipment.

• Avoid increasing vibration levels.

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

English – 11

GENERAL SAFETY PRECAUTIONS

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.

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!

more likely to break and lead to increased wear on the bar, chain and drive sprocket.

Too large a clearance increases

A poorly lubricated chain is

WARNING! Any contact with a rotating saw chain can cause extremely serious injuries.

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 sproc

ket and drive sprocket.

Cutting equipment designed to reduce kickback

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.

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 wellmaintained 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.

IMPORTANT! No saw chain design eliminates the danger of kickback.

12 – English

• Number of drive links. The number of drive links is

mined by the length of the bar, the chain pitch

deter 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 dr

• Chain oil hole and hole for chain tensioner. The bar must be matched to the chain saw design.

ive links.

Chain

• Chain pitch (inches)

GENERAL SAFETY PRECAUTIONS

1 Filing angle

• 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, thic

k chips or shavings.

2 Cutting angle

3 File position

4 Round ﬁle diameter

It is very difﬁcult to sharpen a chain correctly without the

ight equipment. We recommend that you use our ﬁle

r gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain.

See instructions under the heading Technical data for

mation about sharpening your chain.

inf

WARNING! Departure from the sharpening instructions considerably increases the risk of kickback.

Sharpening cutting teeth

• The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge

The cutters cutting depth is determined by the

(B). difference in height between the two (depth gauge setting).

When you sharpen a cutting tooth there are four important factors to remember

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.

English – 13

GENERAL SAFETY PRECAUTIONS

• Check that the chain is correctly tensioned. A slack chain will move sideways, making it more difﬁcult to sharpen correctly.

e the correct depth gauge setting and bevel for

acheiv the depth gauge.

• Always ﬁle cutting teeth from the inside face. Reduce the pressure on the retur one side ﬁrst, then turn the chain saw and ﬁle the teeth on the other side.

• File all the teeth to the same length. When the length of the cutting teeth is reduced to 5/32 inch (4 mm) the chain is w

General advice on adjusting depth gauge setting

• When you sharpen the cutting tooth (A) the depth gauge setting (C) will decrease. To maintain optimal cutting performance the depth gauge (B) has to be ﬁled down to achieve the recommended depth gauge setting. See instructions under the heading Technical data to ﬁnd the correct depth gauge setting for your particular chain.

n out and should be replaced.

n stroke. File all the teeth on

• Place the depth gauge tool over the chain. Detailed or

mation regarding the use of the depth gauge tool,

inf will be found on the package for the depth gauge tool. Use the ﬂat ﬁle to ﬁle off the tip of the depth gauge that protrudes through the depth gauge tool. The depth gauge setting is correct when you no longer feel resistance as you draw the ﬁle along the depth gauge tool.

Tensioning the chain

WARNING! A slack chain may jump off the bar and cause serious or even fatal injury.

The more you use a chain the longer it becomes. It is therefore important to adjust the chain regularly to take up the slack.

Check the chain tension every time you refuel. NOTE! A new chain has a r should check the tension more frequently.

Tension the chain as tightly as possible, but not so tight that you cannot pull it round freely b

unning-in period during which you

y hand.

WARNING! The risk of kickback is increased if the depth gauge setting is

too large!

Adjustment of depth gauge setting

• The cutting teeth should be newly sharpened before adjusting the depth gauge setting. We recommend that you adjust the depth gauge setting every third time you sharpen the cutting teeth. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively.

• You will need a ﬂat ﬁle and a depth gauge tool. We recommend that y

14 – English

ou use our depth gauge tool to

• Loosen the bar nuts that hold the clutch cover/chain e. Use the combination spanner . Then tighten the

brak bar nuts by hand as tight as you can.

• Raise the tip of the bar and stretch the chain by

tightening the chain tensioning screw using the

+ 30 hidden pages