Husqvarna 323P4, 325P5 User Manual

Operator’s manual (EPA)

323P4 325P5

Please read the operator’s manual carefully and make sure you

understand the instructions before using the machine.

X-series

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KEY TO SYMBOLS

Symbols

WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause serious or fatal injury to the operator or others.

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

Always wear:

• A protective helmet where there is a risk of falling objects

• Approved hearing protection

• Protective goggles or a visor

This machine is not electrically insulated. If the machine touches or comes close to high-voltage power lines it could lead to death or serious bodily injury. Electricity can jump from one point to another by arcing. The higher the voltage, the greater the distance electricity can jump. Electricity can also travel through branches and other objects, especially if they are wet. Always keep a distance of at least 10 m between the machine and high-voltage power lines and/or any objects that are touching them. If have to work within this safe distance you should always contact the relevant power company to make sure the power is switched off before you start work.

This machine has a long reach. Make sure that no people or animals come closer than 15 m when the machine is running.

Other symbols/decals on the machine refer to special certiﬁcation requirements for certain markets.

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

Always wear approved protective gloves.

Regular cleaning is required.

Visual check.

Protective goggles or a visor must be worn.

Filling with chain oil and adjusting oil ﬂow

Always wear approved protective gloves.

Wear sturdy, non-slip boots.

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English

IMPORTANT ENGINE INFORMATION

HUSQVARNA AB HUSKVARNA SWEDEN

TWC

REFER TO OPERATOR`S MANUAL FOR

MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.

FOR SMALL NON - ROAD ENGINES.

EPTHIS ENGINE CONFORMS TO U.S. PH1A

Contents Note the following before starting:

KEY TO SYMBOLS

Symbols ....................................................................... 2

CONTENTS

Contents ...................................................................... 3

Note the following before starting: ................................ 3

SAFETY INSTRUCTIONS

Personal protective equipment ..................................... 4

Machine Checking, maintaining and servicing the machine

safety equipment .......................................................... 5

General safety precautions .......................................... 11

Safety instructions for using a pruning saw ................. 12

WHAT IS WHAT?

What is what? .............................................................. 15

ASSEMBLY

Fitting the cutting head ................................................ 16

Fitting the bar and chain .............................................. 16

Adjusting the harness .................................................. 16

Filling with oil ................................................................ 16

Assembling and dismantling the two-piece shaft

(325P5) ......................................................................... 17

FUEL HANDLING

Fuel .............................................................................. 18

Fuelling ........................................................................ 18

STARTING AND STOPPING

Check before starting ................................................... 19

Starting and stopping ................................................... 19

MAINTENANCE

Carburettor ................................................................... 20

Mufﬂer .......................................................................... 21

Cooling system ............................................................ 22

Spark plug .................................................................... 22

Air ﬁlter ......................................................................... 22

Bevel gear .................................................................... 23

Maintenance schedule ................................................. 23

TECHNICAL DATA

Technical data .............................................................. 24

FEDERAL EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 26

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s safety equipment ........................................ 4

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The machine is only designed for cutting branches and twigs.

Maintenance, replacement, or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual.

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.

This decal certiﬁes that the product has been approved in accordance with American exhaust emissions requirements EPA Ph II and CARB Tier II. The Emissions Compliance Period referred to on the Emissions Compliance label indicates the numbers of operating hours for which the engine has been shown to meet Federal and California emission requirements.

WARNING! Under no circumstances may 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 does not cover damage or liability caused by the use of non-authorized accessories or replacement parts.

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SAFETY INSTRUCTIONS

Personal protective equipment

IMPORTANT INFORMATION The machine can be a

dangerous tool if used incorrectly or carelessly, which can cause serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. You must wear approved protective equipment whenever you use the machine. Personal 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.

WARNING! Remove your hearing protection as soon as you stop the engine, so that you

can hear any noises or warning signals.

GLOVES

Gloves must be worn when required, for example when ﬁtting, inspecting or cleaning cutting attachments.

Machine

This section describes the machine purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. See the ”What is what?” section to locate where this equipment is positioned on your machine.

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s safety equipment

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s safety equipment, its

WARNING! Never use a machine that has faulty safety equipment! Carry out the inspection, maintenance and service routines listed in this section.

Throttle lock

The throttle lock is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lock both move back to their original positions. This movement is controlled by two independent return springs. This arrangement means that the throttle control is automatically locked at the idle setting.

PROTECTIVE HELMET AND VISOR

HEARING PROTECTION Wear hearing protection that provides adequate noise reduction.

EYE PROTECTION Blows from branches or objects that are thrown out by a cutting attachment can damage the eyes.

BOOTS

Wear sturdy, non-slip boots.

CLOTHING Wear clothes made of a strong fabric and avoid loose clothing that can catch on twigs and branches. Always wear heavy, long pants. Do not wear jewellery, shorts sandals or go barefoot. Secure hair so it is above shoulder level.

FIRST AID KIT

Always have a ﬁrst aid kit nearby.

Stop switch

Use the stop switch to switch off the engine.

Vibration damping system

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

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SAFETY INSTRUCTIONS

The machine of vibration between the engine unit/cutting equipment and the machine

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s vibration damping system reduces the transfer

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s handle unit.

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. The risk increases at low temperatures.

Mufﬂer

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

WARNING! Engine exhaust fumes contain carbon monoxide, which can cause carbon

monoxide poisoning. For this reason you should not start or run the machine indoors, or anywhere that is poorly ventilated.

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!

Checking, maintaining and servicing the machine

IMPORTANT!

All servicing and repair work on the machine requires special training. This is especially true of the machine safety equipment. If your machine fails any of the checks described below you must contact your service agent. When you buy any of our products we guarantee the availability of professional repairs and service. If the retailer who sells your machine is not a servicing dealer, ask him for the address of your nearest service agent.

Throttle lock

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s safety equipment

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A mufﬂer ﬁtted with a catalytic converter is also designed to reduce harmful exhaust gases.

In countries that have a warm and dry climate there is a signiﬁcant risk of ﬁre. We therefore ﬁt certain mufﬂers with a spark arrestor mesh. Check whether the mufﬂer on your machine is ﬁtted with this kind of mesh.

For mufﬂers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety equipment.

WARNING! Mufﬂers ﬁtted with catalytic converters get very hot during use and

remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of ﬁre!

• Make sure the throttle control is locked at the idle setting when the throttle lock is released.

• Press the throttle lock and make sure it returns to its original position when you release it.

• Check that the throttle control and throttle lock move freely and that the return springs work properly.

WARNING! The inside of mufﬂer contain chemicals that may be carcinogenic. Avoid

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

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SAFETY INSTRUCTIONS

• See instructions under the heading Start. Start the machine and apply full throttle. Release the throttle and check that the cutting attachment stops and remains at a standstill. If the cutting attachment rotates with the throttle in the idle position then the carburettor idle setting must be checked. See instructions under the heading Maintenance.

Stop switch

• Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

• If the mufﬂer on your machine is ﬁtted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage.

Never use a mufﬂer with a defective spark arrestor mesh.

Cutting equipment

This section describes how you can achieve maximum clearing capacity and extend the life of the cutting attachment through correct maintenance and using the right type of cutting attachment.

Check the cutting equipment with regard to damage and crack formation. Damaged cutting equipment should always be replaced.

• Only use cutting equipment recommended by us!

Vibration damping system

• Regularly check the vibration damping units for cracks or deformation.

• Check that the vibration damping element is undamaged and securely attached.

Mufﬂer

• Never use a machine that has a faulty mufﬂer.

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 raker clearance! Follow our

instructions and use the recommended raker gauge.

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.

• Regularly check that the mufﬂer is securely attached to the machine.

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SAFETY INSTRUCTIONS

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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.

WARNING! Never use a machine with faulty safety equipment. The machine’s safety

equipment must be checked and maintained as described in this section. If your machine fails any of these checks contact your service agent to get it repaired.

WARNING! Always stop the engine before doing any work on the cutting attachment.

This continues to rotate even after the throttle has been released. Ensure that the cutting attachment has stopped completely and disconnect the HT lead from the spark plug before you start to work on it.

• Bar groove width (inches/mm). The groove in the bar must match the width of the chain drive links.

• Saw chain oil hole and hole for chain tensioner pin.

Chain

• Saw chain pitch (inches). (The distance between three drive links, divided by two.)

• Drive link width (mm/inches)

Speciﬁcation of bar and saw chain

When the cutting attachment supplied with your machine has to be replaced, because it is worn out or damaged, you must only ﬁt the types of bar and saw chain recommended by us.

Bar

• Length (inches/cm)

• Number of teeth on bar tip sprocket (T). Small number = small tip radius = low risk of kickback.

• 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.

Level of kickback reduction. The only thing that describes the level of kickback reduction offered by a saw chain is its model number.

Sharpening your chain and adjusting raker clearance

WARNING! The risk of kickback is increased with a badly sharpened chain!

General information on sharpening cutting teeth

• 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.

• 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 cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all. Wood powder would be the only result.

• A sharp chain eats its way through the wood and produces long, thick cuttings.

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SAFETY INSTRUCTIONS

• The cutting part of the chain is called the cutting link and this consists of a cutting tooth (A) and the raker lip (B). The cutting depth is determined by the difference in height between the two.

• When you sharpen a cutting tooth there are ﬁve important factors to remember.

- Filing angle

- Cutting angle

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.

WARNING! The following faults will increase the risk of kickback considerably:

File angle too large

Cutting angle too small

- File position

- Round ﬁle diameter

- File depth

1 5

File diameter too small

Sharpening cutting teeth

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

• 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 outwards. Reduce the pressure on the return stroke. File all the teeth on one side of the bar ﬁrst. Then turn the saw over and ﬁle the remaining teeth from the other side.

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SAFETY INSTRUCTIONS

• File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (0.16") the chain is worn out and should be replaced.

General advice on setting raker clearance

• When you sharpen the cutting teeth you reduce the raker clearance (=cutting depth). To maintain optimal cutting performance you must ﬁle back the raker lip to the recommended height.

• On a low-kickback cutting link the front edge of the raker lip is rounded. It is very important that you maintain this radius or bevel when you adjust the raker clearance.

• Place the ﬁle over the part of the lip that protrudes through the gauge and ﬁle off the excess. The clearance is correct when you no longer feel any resistance as you draw the ﬁle over the gauge.

Tensioning the chain

WARNING! A slack chain may jump off 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 running-in period during which you should check the tension more frequently.

• Tension the chain as tightly as possible, but not so tight that you cannot pull it round freely by hand.

• We recommend that you use our raker gauge to achieve the correct clearance and bevel on the raker lip.

WARNING! The risk of kickback is increased if the raker clearance is too large!

Setting the raker clearance

• Before setting the raker clearance the cutting teeth should be newly sharpened.

We recommend that you adjust the raker clearance every third time you sharpen the chain. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively.

• To adjust the raker clearance you will need a ﬂat ﬁle and a raker gauge.

•

- Undo the bar nut.

- Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar.

• Place the gauge over the raker lip.

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SAFETY INSTRUCTIONS

- Use the combination spanner to tighten the blade nut while holding up the tip of the bar. Check that you can pull the saw chain round freely by hand.

Lubricating cutting equipment

WARNING! Poor lubrication of cutting equipment may cause the chain to snap,

which could lead to serious, even fatal injuries.

Chain oil

• Chain oil must demonstrate good adhesion to the chain and also maintain its ﬂow characteristics regardless of whether it is warm summer or cold winter weather.

• As a chain saw manufacturer we have developed an optimal chain oil which, with its vegetable oil base, is also biodegradable. We recommend the use of our own oil for both maximum chain life and to minimise environmental damage.

• If our own chain oil is not available, standard chain oil is recommended.

• In areas where oil speciﬁcally for lubrication of saw chains is unavailable, ordinary EP 90 transmission oil may be used.

• Never use waste oil! This is dangerous for yourself, the machine and the environment.

Checking chain lubrication

• Check the chain lubrication each time you refuel.

Aim the tip of the bar at a light coloured surface about 20 cm (8 inches) away. After 1 minute running at 3/4 throttle you should see a distinct line of oil on the light surface.

Adjusting chain lubrication

When cutting dry or hard species of wood it may be necessary to increase lubrication. To adjust the oil ﬂow, ﬁrst undo screw (A) then turn the adjuster screw (B) anticlockwise. Re-tighten screw (A). Remember that this will increase the oil consumption and you should therefore check the level in the oil tank more frequently.

What to do if lubrication does not work:

• Check that the oil channel in the bar is not obstructed. Clean if necessary.

Filling with chain oil

The oil pump is preset at the factory to meet most lubrication requirements. A full oil tank will last about half as long as a full tank of fuel. You should therefore check the level of oil in the oil tank regularly to avoid damage to the saw chain and bar that could occur due to lack of lubrication.

• Check that the oil channel in the gear housing is clean. Clean if necessary.

• Check that the bar tip sprocket turns freely. If the chain lubrication system is still not working after carrying out the above checks you should contact your service workshop.

Checking wear on cutting equipment

Chain

Check the chain daily for:

• Visible cracks in rivets and links.

• Whether the chain is stiff.

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