Dolmar PS-352 Manual de utilizare

PS-352

PS-352 TLC

GB Petrol Chain Saw ORIGINAL INSTRUCTION MANUAL

UA

Бензинова ланцюгова пила

ОРИГІНАЛЬНІ ІНСТРУКЦІЇ З ЕКСПЛУАТАЦІЇ

PL Pilarka spalinowa ORYGINALNA INSTRUKCJA OBSŁUGI

RO

Ferăstrău cu lanţ pe benzină

MANUAL DE INSTRUCŢIUNI ORIGINAL

D Benzin-Motorsäge ORIGINALBETRIEBSANLEITUNG

HU

Benzinmotoros láncfűrész

EREDETI HASZNÁLATI ÚTMUTATÓ

SK Benzínová reťazová píla PÔVODNÝ NÁVOD NA OBSLUHU

CZ Benzínová řetězová pila ORIGINÁLNÍ NÁVOD K OBSLUZE

Important:

Read this instruction manual carefully before putting the chain saw into operation and strictly observe the safety regulations!

Keep this instruction manual!

Важливо:

Уважно прочитайте цю інструкцію з експлуатації, перед тим як використовувати ланцюгову пилу, та строго дотримуйтеся правил з

техніки безпеки!

Зберігайте цю інструкцію з експлуатації!

Ważne:

Przeczytać uważnie niniejszą instrukcję obsługi przed uruchomieniem pilarki i ściśle przestrzegać przepisów dotyczących bezpieczeństwa!

Zachować niniejszą instrukcję obsługi!

Important:

Citiţi cu atenţie acest manual de instrucţiuni înainte de a pune în funcţiune ferăstrăul cu lanţ şi respectaţi cu stricteţe reglementările privind

siguranţa!

Păstraţi acest manual de instrucţiuni!

Wichtig:

Lesen Sie vor Verwendung der Motorsäge diese Betriebsanleitung aufmerksam durch, und halten Sie die Sicherheitsbestimmungen strikt ein!

Bewahren Sie diese Betriebsanleitung auf!

Fontos:

A láncfűrész első üzembe helyezése előtt gyelmesen olvassa át ezt az üzemeltetési utasítást, és feltétlenül tartsa be a biztonsági előírásokat!

A használati utasítást gondosan őrizze meg!

Dôležité:

Pred použitím reťazovej píly si pozorne prečítajte tento návod na obsluhu a striktne dodržiavajte bezpečnostné nariadenia!

Tento návod na obsluhu uschovajte!

Důležité:

Před uvedením řetězové pily do provozu si důkladně prostudujte tento návod k obsluze a pečlivě dodržujte bezpečnostní směrnice!

Návod k obsluze si uschovejte!

PS-352

PS-352 TLC

2

English (Original instructions)

Table of Contents Page

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

Safety precautions ............................................................................3

Technical data...................................................................................9

Designation of parts........................................................................10

Chain saw’s safety function ............................................................ 11

Assembly ........................................................................................ 13

Before use ......................................................................................16

Starting and stopping engine ..........................................................18

Maintenance ................................................................................... 20

Maintenance interval ......................................................................25

Trouble shooting ............................................................................. 26

SYMBOLS

Read instruction manual and follow the

warning- and safety precautions!

Caution, kickback!

Particular care and caution!

Forbidden! Chain brake

Wear protective helmet, eye and ear

protection!

Hold the saw with both hands while

working!

One-handed use is extremely hazardous!

Wear protective gloves! Fuel and oil mixture

No smoking! Chain oil ﬁll/oil pump

No open ﬁre! Saw chain oil adjustment screw

Stop engine! Primer pump

Start engine Chain direction

Combination switch, Choke ON/STOP First aid

3

Intended use

This power chain saw is only intended for sawing wood outdoors.

General precautions

• To ensure correct operation the user has to read this instruction manual to

make himself familiar with the characteristics of the chain saw. Users insufﬁciently

informed will endanger themselves as well as others due to improper handling.

• It is recommended to lend the chain saw only to people who are experienced in

working with chain saws. Always hand over the instruction manual.

• First users should ask the dealer for basic instructions to become familiarized

with the characteristics of engine powered sawing or even attend a recognized

course of instruction.

• Children and young persons aged under 18 years must not be allowed to operate

the chain saw. Persons over the age of 16 years may, however, use the chain

saw for the purpose of being trained as long as they are under the supervision of

a qualiﬁed trainer.

• Operate the chain saw only if you are in good physical condition. If you are tired,

your attention will be reduced. Be especially careful at the end of a working day.

Perform all work calmly and carefully. The user has to accept liability for others.

• Stay alert, watch what you are doing and use common sense when operating a

chain saw. A moment of inattention while operating may result in serious personal

injury.

• Never use the chain saw after having consumed alcohol, drugs or medication.

• The mufer may contain carcinogenic chemicals inside. Avoid contact with them

in case the mufer is damaged.

• Ignition system of the engine emits electromagnetic wave during operation. It

may interfere with medical equipments under certain circumstances, and may

cause serious injury to persons with pace maker. It is recommended that persons

with pace maker shall consult with their physicians and pacemaker manufacturer

before using the chain saw.

• Do not use a chain saw which seems to be modiﬁed.

• A ﬁre extinguisher and shovel must be available in the immediate vicinity when

working in easily inammable vegetation or when it has not rained for a long time

(danger of ﬁre).

• National regulation can restrict the use of the machine. Follow your county’s

regulations relating to use of chain saw.

Personal protective equipment

• In order to avoid head, eye, hand or foot injuries as well as to protect your

hearing the following protective equipment must be used during operation

of the chain saw:

• The kind of clothing should be appropriate, i. e. it should be tight-ﬁtting but not

be a hindrance. Do not wear jewellery or clothing which could become entangled

with bushes or shrubs. If you have long hair, always wear a hairnet.

• It is necessary to wear a protective helmet whenever working with the chain saw.

The protective helmet (1) is to be checked in regular intervals for damage and is

to be replaced after 5 years at the latest. Use only approved protective helmets.

• The face shield (2) of the protective helmet (or the goggles) protects against

sawdust and wood chips. During operation of the chain saw always wear a

goggle or a face shield to prevent eye injuries.

• Wear adequate noise protection equipment (ear muffs (3), ear plugs, etc.). Long

time exposure to noise may cause permanent hearing disorder.

• The safety jacket (4) is provided with special signal-colored shoulder straps and

is comfortable and easy to care for.

• The protective brace and bib overall (5) is made of a nylon fabric with 22 layers

and protects against cuts. We strongly recommend its use.

• Protective gloves (6) made of thick leather are part of the prescribed equipment

and must always be worn during operation of the chain saw.

• During operation of the chain saw safety shoes or safety boots (7) ﬁtted with anti

skid sole, steel toe caps and protection for the leg must always to be worn. Safety

shoes equipped with a protective layer provide protection against cuts and ensure

a secure footing.

• Wear protective mask when necessary. Long time exposure to exhaust fumes,

chain oil mist, and saw dust can damage your health.

SAFETY PRECAUTIONS

1

2

3

4

56

7

4

Fuels/Refuelling

• Stop the engine before refuelling the chain saw.

• Do not smoke or work near open ﬁres.

• Let the engine cool down before refuelling.

• Fuels can contain substances similar to solvents. Eyes and skin should not

come in contact with mineral oil products. Always wear protective gloves when

refuelling. Frequently clean and change protective clothes. Do not breathe in fuel

vapors. Inhalation of fuel vapors can be hazardous to your health.

• Do not spill fuel or chain oil. When you have spilt fuel or oil immediately clean

the chain saw. Fuel should not come in contact with clothes. If your clothes have

come in contact with fuel, change them at once.

• Ensure that no fuel or chain oil oozes into the soil (environmental protection). Use

an appropriate base.

• Refuelling is not allowed in closed rooms. Fuel vapors will accumulate near the

oor (explosion hazard).

• Ensure to ﬁrmly tighten the screw plugs of the fuel and oil tanks.

• Change the place before starting the engine (at least 3 m from the place of

refuelling).

• Fuel cannot be stored for an unlimited period of time. Buy only as much as will be

consumed in the near future.

• Use only approved and marked containers for the transport and storage of fuel

and chain oil. Ensure children have no access to fuel or chain oil.

Putting into operation

• Do not work on your own. Another person must be nearby in case of

emergencies (within shouting distance).

• Ensure that there are no children or other people within the working area. Pay

attention to any animals in the working area, as well.

• Before starting work the chain saw must be checked for perfect function

and operating safety according to the prescriptions. Never use a chain

saw with defects. Check especially the function of the chain brake, the correct

mounting of the guide bar, the correct sharpening and tightening of the chain,

the ﬁrm mounting of the chain cover, the easy motion of the throttle trigger and

the function of the throttle trigger lock-out, the cleanliness and dryness of the

handles, and the function of the combination switch.

• When you drop the chain saw or it gets other impacts, stop using the tool

immediately and perform inspection for identify signiﬁcant damage or defects.

• Put the chain saw only into operation if it is completely assembled. Never use the

chain saw when it is not completely assembled.

• Check your personal protective equipment.

• Put the chain saw into operation only as described in this instruction manual.

Other starting methods are not allowed.

• Before starting the chain saw ensure that you have a safe footing.

• When starting the chain saw it must be well supported and securely held. The

guide bar and chain must not be in contact with any object.

• Check chain oil reaches sufﬁciently to the chain.

3 Meter

5

Operation

• When working with the chain saw always hold it with both hands. Take the

rear handle with the right hand and the front handle with the left hand. Hold the

handles tightly with your thumbs facing your ﬁngers.

• CAUTION: When releasing the throttle trigger the chain will keep on

running for a short period of time (free-wheeling).

• Continuously ensure that you have a safe footing.

• Hold the chain saw such that you will not breathe in the exhaust gas. Do not work

in closed rooms (danger of poisoning).

• Switch off the chain saw immediately if you observe any changes in its

operating behavior.

• The engine must be switched off before checking the chain tension,

tightening the chain, replacing it or clearing malfunctions.

• When the sawing device is hit by stones, nails or other hard objects, switch off

the engine immediately and check the sawing device.

• When stopping work or leaving the working place, switch off the chain saw and

put it down such that nobody is endangered.

• CAUTION: Do not put the overheated power chain saw in dry grass or on

any inammable objects. The mufer is very hot (danger of re).

• CAUTION: Oil dropping from the chain or guide bar after having stopped the saw

chain will pollute the soil. Always use an appropriate base.

Kickback

• When working with the chain saw dangerous kickbacks may occur.

• Kickback occurs when the upper part of the end of the guide bar inadvertently

touches wood or other hard objects.

• This causes the saw to be thrown back toward the user with great force and out

of control. Risk of injury!

In order to prevent kickback, follow these rules:

- Only specially-trained persons should perform plunge cuts, i.e., piercing timber

or wood with the tip of the saw!

- Never apply the end of the bar when starting to make a cut.

- Always observe the end of the guide bar. Be careful when continuing an

already started cut.

- When starting to cut the chain must be running.

- Ensure that the chain is always sharpened correctly. Pay special attention to

the height of the depth limiter.

- Never cut several branches at the same time. When cutting a branch ensure

that no other branch is touched.

- When crosscutting a trunk be aware of the trunks next to it.

Working behavior/Method of working

• Only use the chain saw during good light and visibility periods. Be aware of

slippery or wet areas, and of ice and snow (risk of slipping). The risk of slipping is

extremely high when working on recently peeled wood (bark).

• Never work on unstable surfaces. Make sure that there are no obstacles in the

working area, risk of stumbling. Always ensure that you have a safe footing.

• Never saw above your shoulder height.

• Never saw while standing on a ladder.

• Never climb up into trees to perform sawing with the chain saw.

• Do not work leaning too far over.

• Guide the chain saw in such a way that no part of your body is within the

elongated swivelling range of the saw.

• Use the chain saw for sawing wood only.

• Avoid touching the ground with the chain saw while it is still running.

• Never use the chain saw for lifting up or removing pieces of wood or other

objects.

• Remove foreign objects such as sand, stones and nails found within the working

area. Foreign objects may damage the sawing device and can cause dangerous

kickback.

• When sawing precut timber use a safe support (sawing jack). Do not steady the

workpiece with your foot, and do not allow anyone else to hold or steady it.

• Secure round pieces against rotation.

• Maintenance

• Refuelling

• Sharpening the chain

• Stopping work

• Transport

• Putting out of function

6

• For cutting down trees or performing crosscuts the spike bumper (Z) must

be applied to the wood to be cut.

• Before performing a crosscut ﬁrmly apply the spike bumper to the timber, only

then can the timber be cut with the chain running. For this the chain saw is lifted

at the rear handle and guided with the front handle. The spike bumper serves

as a centre of rotation. Continue by slightly pressing down the front handle and

simultaneously pulling back the chain saw. Apply the spike bumper a little bit

deeper and once again lift the rear handle.

• When the timber must be pierced for cutting or longitudinal cuts are to be

performed it is urgently recommended to have this carried out by specially

trained persons only (high risk of kickback).

• Do longitudinal ‑ lengthwise ‑ cuts at the lowest possible angle. Be very careful

when doing this type of cut, as the spike bumper cannot grip.

• The saw must be running whenever you remove the chain saw from the wood.

• When performing several cuts the throttle trigger must be released in between.

• Be careful when cutting splintery wood. Cut pieces of wood may be pulled along

(risk of injuries).

• When cutting with the upper edge of the guide bar, the chain saw may be pushed

in the direction of the user if the chain gets clamped. For this reason use the

lower edge of the bar whenever possible. The chain saw will then be pushed

away from you.

• If the timber is under tension, ﬁrst cut the pressure side (A). Then the crosscut

can be performed on the tension side (B). Thus clamping of the guide bar can be

avoided.

CAUTION:

People felling trees or cutting of branches must be specially trained. High risk

of injuries!

• When cutting of branches, the chain saw should be supported on the trunk. Do

not use the end of the bar for cutting (risk of kickback).

• Be aware of branches under tension. Do not cut free branches from below.

• Never perform detensioning cuts while standing on the trunk.

B

A

B

7

45o

21/2

cutting down area

• Before cutting down a tree ensure that

a) only those people are within the working area which are actually involved in

cutting down the tree.

b) every worker involved can withdraw without stumbling (the people should

withdraw backwards in a diagonal line, i. e. at a degree of 45°).

c) the bottom part of the trunk is free from foreign objects, underbrush and

branches. Make sure to have a safe footing (risk of stumbling).

d) the next working place is at least 2 1/2 tree lengths away. Before cutting down

the tree check the direction of fall and make sure that there are neither people

nor objects within a distance of 2 1/2 tree lengths.

• Judging the tree: Direction of hanging - loose or dry branches - height of the

tree - natural overhang - is the tree rotten?

• Take into account the direction and speed of the wind. If strong gusts are

occurring, do not do any felling.

• Cutting the roots: Start with the strongest root. First do the vertical and then the

horizontal cut.

• Notching the trunk: The notch (A) determines the direction of fall and guides the

tree. The trunk is notched perpendicular to the direction of fall and penetrates 1/3

-1/5 of the trunk diameter. Perform the cut near the ground.

• When correcting the cut, always do so over the whole width of the notch.

• Cut down the tree above the bottom edge of the notch (D). The cut must be

exactly horizontal (B). The distance between both cuts (C) must be approx. 1/10

of the trunk diameter.

• The material between both cuts serves as a hinge. Never cut it through,

otherwise the tree will fall without any control. Insert felling wedges in time.

• Secure the cut only with wedges made of plastic or aluminium. Do not use iron

wedges. If the saw hits an iron wedge the chain can be seriously damaged or

torn.

• When cutting down a tree always stay sidewards of the falling tree.

• When withdrawing after having performed the cut, be alert for falling branches.

• When working on sloping ground the user of the chain saw must stay above or

sidewards of the trunk to be cut or the tree already cut down.

• Be alert for trunks which may roll towards you.

8

Transport and storage

• When changing your location during work switch off the chain saw and

actuate the chain brake in order to prevent an inadvertent start of the chain.

• Never carry or transport the chain saw with the chain running. When the

saw is hot, do not cover it (with a tarp, blanket, newspaper or the like). Let

the saw cool down before putting it in a storage case or vehicle. Saws with

catalytic converter take longer to cool down!

• Use the chain protection cover during transport and storage.

• Carry the chain saw with the front handle. The guide bar points backwards. Avoid

coming in contact with the mufer (danger of burns).

• Ensure safe positioning of the chain saw during car transportation to avoid fuel

leakage, damage or injury.

• Store the chain saw safely in a dry place. It must not be stored outdoors. Keep

the chain saw away from children.

• Before storing the chain saw over a long period of time or shipping it, the fuel and

oil tanks must be completely emptied.

• Perform cleaning and maintenance before storage.

Maintenance

• Before performing maintenance work switch off the chain saw and pull out

the plug cap.

• Before starting work always check the operating safety of the chain saw, in

particular the function of the chain brake. Make sure that the chain is always

sharpened and tightened correctly.

• Operate the chain saw only at a low noise and emission level. For this ensure the

carburetor is adjusted correctly.

• Regularly clean the chain saw.

• Regularly check the tank cap for tightness.

• Observe the accident prevention instructions issued by trade associations

and insurance companies.

• Do not perform any modications on the chain saw. You will put your safety

at risk.

• Perform only the maintenance and repair works described in the instruction

manual. All other work must be carried out by Dolmar Service.

• Use only original Dolmar spare parts and accessories.

• Using spare parts other than original Dolmar parts or accessories and guide

bar/chain combinations or lengths which are not approved bring a high risk

of accidents. We cannot accept any responsibility for accidents and damage

resulting from using sawing devices or accessories which have not been

approved.

Vibration

Individuals with poor circulation who are exposed to excessive vibration may

experience injury to blood vessels or the nervous system.

Vibration may cause the following symptoms to occur in the ﬁngers, hands or wrists:

“Falling asleep” (numbness), tingling, pain, stabbing sensation, alteration of skin

color or of the skin.

If any of these symptoms occur, see a physician! To reduce the risk of

vibration white nger, keep your hands warm, wear gloves, and make sure the

saw chain is sharp.

First Aid

In case of accident make sure that a ﬁrst-aid box is available in the vicinity of the

cutting operations. Immediately replace any item taken from the ﬁrst aid box.

When asking for help, please give the following information:

- Place of accident

- What happened

- Number of injured persons

- Kind of injuries

- Your name

For European countries only

EC Declaration of Conformity

The EС declaration of conformity is included as Annex A to this instruction manual.

9

Model PS‑352 PS-352 TLC

Overall length (without guide bar) mm 388

Net weight kg 4.2

Stroke volume cm335.2

Bore mm 38

Stroke mm 31

Max. power at speed kW/min-1 1.7/10,000

Max. torque at speed Nm/min-1 2.0/7,000

Idling speed/max. engine speed with bar and chain min-1 2,900/13,500

Clutch engagement speed min-1 4,100

Carburetor Type Diaphragm

Spark plug Type NGK BPMR 8Y

Electrode gap mm 0.7

Fuel tank capacity cm3310

Chain oil tank capacity cm3260

Mixture ratio (fuel/two stroke oil)

Dolmar genuine oil or quality grade JASO FC (ISO EGC)

or upper

50:1

Chain brake Engages manually or in case of kickback.

Chain speed m/s 25.3

Sprocket pitch mm (inch) 0.95 (3/8)

Number of teeth Z 6

Sound pressure level at the workplace LPA, eq per

ISO 22868 1)

dB (A) 99

KPA 2.5

Sound power level LWA, Fl + Ra per ISO 22868 2) dB (A) 111

KWA 2.5

Vibration acceleration ahv, eq per

ISO22867 1)

front handle

m/s23.3

K 2.0

rear handle

m/s23.4

K 2.0

1) Figures derived in equal part from idling, full-load and racing speed.

2) Figures derived in equal part from full-load and racing speed.

• Due to our continuing program of research and development, the speciﬁcations herein are subject to change without notice.

• Speciﬁcations may differ from country to country.

Guide bar and saw chain

Guide bar type Sprocket nose bar

Length 350 mm 400 mm

Cutting length 325 mm 360 mm

Saw chain Type 492 (91PX)

Pitch 3/8”

Gauge 1.3 mm (0.05”)

No. of drive links 52 56

WARNING:

Use appropriate combination of the guide bar and saw chain. Otherwise personal injury may result.

TECHNICAL DATA

10

Designation of parts

1 Rear handle

2 Cleaner cover

3 Front handle

4 Front hand guard

5 Guide bar

6 Saw chain

7 Throttle trigger lock-out

8 Throttle trigger

9 Fuel pump (Primer)

10 Chain cover

11 Chain adjusting screw

12 Chain adjusting dial

13 Retaining nuts

14 Lever

15 Oil tank cap

16 Fuel tank cap

17 Fuel level gauge

18 Starter grip

19 Combination switch

DESIGNATION OF PARTS

5

14

12

10

3

4

5

6

15

16

17

18

19

1

78

911 13

2

10

11

WARNING:

• Following safety functions does NOT guarantee all time protection from injury.

Only proper usage and technique can reduce the risk of kickback and other

dangerous accidents.

• Always check the safety functions before use.

• If the chain saw fails any of the checking, switch off the engine immediately, and

do NOT use the chain saw. Contact Dolmar authorized service center.

Chain brake

The chain brake is designed to stop the chain to standstill within a fraction of a

second. It is activated when the kickback is sufﬁciently strong.

To engage the chain brake manually, push the front hand guard forward (forwards

the tip of the saw) with your left hand.

To release the chain brake, pull the front hand guard towards backward (towards

you).

NOTICE:

• Do not accelerate the engine with the chain brake actuated (except for testing).

• Always release the chain brake before starting the operation.

Checking the chain brake

1. Run the engine at idle speed.

2. Hold the chain saw with both hands. Hold the rear handle with your right hand,

the front handle with your left. Make sure that the guide bar and the chain do not

contact with any object.

3. Push the front hand guard using the back of your hand, until the chain brake

engages.

4. Accelerate till engine reaches full throttle for less than 3 seconds. Make sure that

the saw chain does not move at all.

5. Bring the engine back to idle and release the chain brake.

Checking the brake band

The brake band is at the back of the chain cover. Chain brake wears out in course

of time. Have it checked and serviced by Dolmar authorized service center at least

every 3 month.

Throttle trigger lock‑out

Throttle trigger lock-out is designed to prevent accidental start. You can pull the

throttle trigger only when the throttle trigger lock-out is pressed (i.e. when you grasp

the handle).

Checking throttle trigger lock‑out

Check the throttle trigger lock-out returns its original position after releasing your

hand from the rear handle.

Engine stop

Make sure that the engine stops when you intend to.

Checking the engine stop

Start the engine. Then release the throttle trigger, and press down the combination

switch to lower (O) position.

CHAIN SAW’S SAFETY FUNCTION

12

Chain catcher

Chain catcher is designed to catch the chain in case the saw chain jumps from the

guide bar. The saw chain should not jump if it is properly tensioned. Always check

and adjust the tension of the saw chain in accordance with this instruction manual.

Checking chain catcher

Check the chain catcher is not damaged and securely sits on the housing.

13

WARNING:

• Before performing any work on the guide bar or saw chain, always switch off the

engine and make sure that the cutting tool is stopped.

• Always wear protective gloves.

CAUTION:

• Start the chain saw only after having assembled it completely and inspected.

Installing guide bar and saw chain

NOTICE:

• Installing or removing saw chain should be carried out in a clean place free from

sawdust or other foreign material.

Put the chain saw on a stable surface and carry out the following steps:

1. Release the chain brake by pulling the front hand guard.

2. Loosen chain tension fully.

3. (For model PS-352) Unscrew the retaining nuts.

(For model PS-352 TLC) Press and fully open the lever until it stops. Turn the

lever counterclockwise.

4. Remove the chain cover.

NOTICE:

• You can not remove the chain cover without releasing the chain brake.

ASSEMBLY

PS-352 TLC

PS‑352

14

5. Place the guide bar over the bar bolts.

6. Check the direction of the saw chain. The arrows on the saw chain must point the

same direction as the arrow on the saw housing.

7. Fit the saw chain at the sprocket ﬁrst, then ﬁt the saw chain on the guide bar tip.

8. Place the chain cover as the adjusting pin come on the hole on the guide bar.

NOTICE:

• Lift the saw chain over the chain catcher.

9. (For model PS-352) Tighten the retaining nuts to secure the chain cover, then

loosen them a bit for tension adjustment.

(For model PS-352 TLC) Turn the lever clockwise to secure the chain cover,

then loosen them a bit for tension adjustment.

10. Adjust the saw chain tension. (See the section “Adjusting saw chain tension”

step 3 and after.)

NOTE:

• In order to gain uniform wear of the guide bar, turned it over when replacing the

chain.

15

Adjusting saw chain tension

CAUTION:

• Excessively loose saw chain may jump off the bar, and therefore presents an

accident risk. If the saw chain is too loose, adjust it.

• Excessively high tension of saw chain may cause breakage of saw chain, wear of

the guide bar and breakage of the adjusting screw/dial.

The saw chain may become loose after many hours of use. When you change the

saw chain or after some hours of operation, check the saw chain tension before

use. Properly adjusted saw chain contributes good performance and tool’s long life.

The tension of the chain is correct if the chain rests against the bottom side of the

guide bar and can still be easily turned by hand.

Check the chain tension frequently, new chain tends to become longer during use.

To adjust tension of the saw chain, perform the following procedure:

1. Release the chain brake by pulling the front hand guard.

2. (For model PS-352) Unscrew the retaining nuts a bit to loosen the chain cover.

(For model PS-352 TLC) Press and fully open the lever until it stops. Turn the

lever counterclockwise a bit to loosen the chain cover.

3. Slightly lift and hold the tip of the guide bar.

4. (For model PS-352) Turn the chain adjusting screw to adjust the saw chain

tension.

(For model PS-352 TLC) Turn the chain adjusting dial to adjust the saw chain

tension.

5. Adjust the chain tension until the lower side of the saw chain ﬁts in the guide bar

rail (see circle in the ﬁgure).

During adjusting the chain tension, keep lifting up the tip of the guide bar.

6. Keep holding the guide bar lightly, and tighten the chain cover after adjusting the

chain tension.

(For model PS-352) Tighten the retaining nuts to secure the chain cover.

(For model PS-352 TLC) Turn the lever fully clockwise to secure the chain cover.

Then press and close the lever.

7. Make sure that the saw chain does not loose at lower side but it ﬁts snugly

against the lower side of the bar.

PS‑352

PS-352 TLC

16

WARNING:

• AVOID SKIN AND EYE CONTACT. Mineral oil products degrease your skin. If

your skin comes in contact with these substances repeatedly and for an extended

period of time, it may dry your skin. Various skin diseases may result. In addition,

allergic reactions are known to occur. Eyes can be irritated by contact with oil. If

oil comes into your eyes, immediately wash them with clear water. If your eyes

are still irritated, see a doctor immediately.

Fuel

CAUTION:

• Be especially careful when handling gasoline.

• Do not smoke. Keep tool well away from open ames, spark, or ﬁre (explosion

hazard).

Fuel mixture

This tool is powered by a high-performance air-cooled two stroke engine. It runs on

a mixture of gasoline and two-stroke engine oil.

The engine is designed for unleaded regular gasoline with a min. octane value of

91 RON (89 AKI), and ethanol contained no more than 10%. In case no such fuel

is available, you can use fuel with a higher octane value. This will not affect the

engine.

In order to obtain an optimum engine output and to protect your health and

the environment use unleaded fuel only.

To lubricate the engine, use synthetic oil for two-stroke air-cooled engines (Dolmar

genuine oil or quality grade JASO FC (ISO EGC) or upper). Mix engine oil with fuel.

CAUTION:

• Do not use ready-mixed fuel from petrol stations.

The correct mixture ratio: 50:1 i.e. mix 50 parts gasoline with 1 part oil.

NOTE:

• For preparing the fuel-oil mixture ﬁrst mix the entire oil quantity with half of the

fuel required, then add the remaining fuel. Thoroughly shake the mixture before

ﬁlling it into the chain saw tank.

Do not add more engine oil than speciﬁed. Incorrect mixture ratio of oil results in

making more polluting combustion residues. It also causes clog exhaust channel

in the cylinder and mufer, and causes poor performance and excessive fuel

consumption.

The Storage of Fuel

Fuels have a limited storage life. Fuel mixtures age through evaporation, especially

at high temperatures. Aged fuel and fuel mixtures can cause starting problems and

damage the engine. Purchase only that amount of fuel, which will be consumed

over the next few months. At high temperatures, once fuel has been mixed it should

be used up in 6-8 weeks.

Preserve fuel only in proper containers, in dry, cool, secure locations.

Chain oil

Use oil with adhesive additive for lubricating the chain and guide bar. The adhesive

additive prevents the oil from being ung off the chain too quickly.

We recommend the use of Dolmar genuine chain oil or chain oil which is bio-

degradable in order to protect the environment. The use of bio-degradable oil may

even be required by local regulations.

Bio-degradable oil is stable only for a limited period of time. Use it within 2 years

from the date of manufacture (printed on the container).

Important note on bio‑degradable chain oils

If you are not planning to use the saw again for an extended period of time, empty

the oil tank and put in a small amount of regular engine oil (SAE 30), and then run

the saw for a time. This is necessary to ush out all remaining bio-degradable oil

from the oil tank, oil-feed system, chain and guide bar, as many such oils tend to

leave sticky residues over time, which can cause damage to the oil pump or other

parts.

NEVER USE WASTE OIL

Waste oil is very dangerous for the environment.

Waste oil contains high amounts of carcinogenic substances.

Residues in waste oil result in extreme wear and scuff at the oil pump and the

sawing device.

In case of damage caused by using waste oil or inappropriate chain oil the product

warranty will be void.

BEFORE USE

17

Refuelling and relling chain oil

WARNING:

• FOLLOW THE SAFETY PRECAUTIONS. Be careful and cautious when handling

fuels.

• Switch off the engine.

CAUTION:

• Clean the tank cap and the area around the tank after refuelling.

Refuel or reﬁll the chain oil as follows:

1. Thoroughly clean the area around the caps, to prevent dirt from getting into the

fuel or oil tank.

2. Unscrew the cap and ﬁll the each tanks with fuel (fuel/oil mixture) and chain oil

respectively.

3. Fill up to the bottom edge of the ﬁller neck. Be careful not to spill fuel or chain oil!

4. Tighten the tank caps by hand as far as it goes.

Lubricating the chain

WARNING:

• Check the chain oil tank only when the engine is switched off.

Make sure there is sufﬁcient chain oil in the chain oil tank to provide good chain

lubrication during operation.

At medium oil feed rate, the oil tank capacity is approximately equal to the run time

of one tank of fuel.

Before operation or refueling, check the chain oil level and reﬁll if necessary.

Adjusting the chain lubrication

WARNING:

• Switch off the engine.

You can adjust the oil pump feed rate with adjusting screw. There are three degrees

of the oil pump feed rate, i.e. high, middle or low.

Adjusting screw locates at the bottom of the chain saw. Use a screwdriver and

adjust the amount of oil delivery appropriately.

Cleaning the oil guide

To ensure secure operation of the oil pump, clean the oil guide groove at the

housing and the oil feed hole in the guide bar regularly.

Checking the chain lubrication

CAUTION:

• Never work with the chain saw without sufﬁcient chain lubrication. Otherwise the

service life of the saw chain and guide bar is reduced.

• Before starting work check the oil level in the tank and the oil feed.

• Pay attention to the direction of the wind and avoid unnecessary exposure to the

oil spray.

Check the oil feed rate as follows:

1. Start the chain saw.

2. Hold the running chain saw approx. 15 cm (6”) above a trunk or the ground (use

an appropriate base).

3. If the lubrication is sufﬁcient, you can see light oil trace because oil is scattered

off the chain.

NOTE:

• After turning off the chain saw, it is normal that residual chain oil drips from the

oil feed system, the guide bar and the chain for a while. This does not mean a

defect. Place the saw on a suitable surface.

18

WARNING:

• Do not start the engine before the chain saw is completely assembled and

checked.

CAUTION:

• Move at least 3 meters (10 ft.) away from the place where the chain saw is

fuelled.

• Make sure you have a secure footing, and place the saw on the ground.

• Make sure the guide bar and saw chain does not touch anything.

• Do not forget to activate chain brake before starting the engine.

NOTICE:

• Never pull the rope to the full extension.

• Return the starter grip gently into the housing. Otherwise released starter grip

may hit your body or it may not rewind appropriately.

• The engine must be put in idle immediately after starting. If not, the clutch can be

damaged, ask authorized service center.

Starting the engine

1. Activate the chain brake (lock).

2. Hold the front handle ﬁrmly with left hand and press the chain saw against the

ground.

3. Hold down the rear handguard with your right foot.

4. Start the engine in accordance with engine circumstances as follows.

Cold start

When the engine is not used just before starting, perform the following steps:

1. Push the primer pump several times until fuel comes into the primer pump. (In

general, 7 to 10 pushes.)

2. Move up the combination switch (choke position). This also actuates the half-

throttle lock.

3. Pull the starter grip slowly until feeling compression. Then pull it strongly. It may

take two to four attempts until engine ﬁres.

4. As soon as the engine ﬁres, move the combination switch to the middle (I)

position. Then pull the starter grip strongly again until the engine starts running.

5. Grasp the rear handle (the throttle trigger lock-out is released by the grasp) and

pull the throttle trigger for a little, and release it.

6. Release the chain brake.

Warm start

When the engine is used just before starting and still warm, perform the following

steps:

1. Push the primer pump several times until fuel comes into the primer pump. (In

general, 7 to 10 pushes.)

2. Move up the combination switch (choke position), and then back to the middle (I)

position.

3. Pull the starter grip slowly until feeling compression. Then pull it strongly. It may

take two to four attempts until engine starts. If the engine does not start, perform

the steps of cold start (see the section “Cold start”).

As soon as the engine starts running, grasp the rear handle (the throttle trigger

lock-out is released by the grasp) and pull the throttle trigger for a little then

release it.

4. Release the chain brake.

STARTING AND STOPPING ENGINE

19

Stopping the engine

Release the throttle trigger, and then press down the combination switch to lower

(O) position.

The combination switch reverts to (I) position automatically. The engine stops with

this switch off, but is ready to start.

To cut off the ignition current, push the combination switch all the way down past the

resistance point to lock it at (O) position.

Adjusting idle speed

WARNING:

• Do not adjust idle speed before the chain saw is completely assembled and

checked.

• If the saw chain still moves at idle speed even after adjustment, stop using the

chain saw immediately, and bring it to Dolmar authorized service center for repair.

CAUTION:

• Do not adjust the screws (H) and (L) in the illustration.

If the saw chain moves in idle without pulling throttle trigger, it is necessary to adjust

the idle speed.

Adjust the idle speed as follows:

1. Start and warm up the engine for two or three minutes, but do not drive the

engine at high speed.

2. To reduce the idle speed, turn the adjusting screw counterclockwise.

3. To increase the idle speed, turn the adjusting screw clockwise.

4. Make sure the saw chain does not move at idle speed.

Prevention from carburetor icing

NOTICE:

• When environmental temperature is higher than 5°C, always return the shutter

to normal (sun mark) setting. Otherwise the engine may be damaged by

overheating.

When the environmental temperature is low (0°C - 5°C) and humidity is high, water

vapor may freeze inside the carburetor and the engine drives unsteadily (carburetor

icing). Change the setting of the shutter as follows if necessary.

1. Open the cleaner cover.

2. Pull out the shutter.

3. Set the shutter in anti-icing position (snow mark).

4. Return the cleaner cover.

20

WARNING:

• Make sure that the chain saw is switched off the engine and pull the plug cap off

the spark plug before performing maintenance or inspection.

• Wait until the engine cools down before performing any maintenance work.

• Always wear protective gloves.

• Start the chain saw only after having assembled and inspected it completely.

• Keep away from open ames and do not smoke.

CAUTION:

• To maintain product SAFETY and RELIABILITY, any repair, maintenance or

adjustment work that is not included in this manual should be performed by

Dolmar Authorized Service Centers. Always use Dolmar replacement parts.

Sharpening the saw chain

The chain needs sharpening when:

• Chips produced by cutting look like sawdust.

• The chain penetrates the wood only under great pressure.

• The cutting edge is visibly damaged.

• The saw is pulled to the left or right when sawing. This is caused by uneven

sharpening of the chain.

NOTICE:

• Sharpen frequently, but without removing too much. Generally, two or three

strokes of the ﬁle are enough.

• Have the chain resharpened at a service centre when you have already

sharpened it yourself several times.

Proper sharpening

CAUTION:

• Use only chains and guide bars designed for this saw.

• Excessive depth (3) increases the risk of kickback.

Sharpening criteria (for saw chain 492 (91PX))

- Maintain all cutter parts (1) on the saw chain the same length. Cutter parts with

different lengths result in rough running of the chain and can cause cracks in the

chain.

- The minimum cutter length (2): 4 mm. Do not sharpen the chain when the cutter

part length becomes less than 4 mm. At this point, replace the saw chain.

- The depth of the cut (3) is determined by the difference in height between the

depth gauge (round nose) and the cutting edge.

- The best results are obtained with 0.64 mm (.025”) of the depth.

- Maintain the same sharpening angle of 30° for all the cutter parts.

- Use a proper round ﬁle so that proper sharpening angle of 55° is kept against the

teeth.

- Sharpen the cutters with proper angle, otherwise it may cause rough and irregular

chain running, and result in increasing wear and breakage of the saw chain.

MAINTENANCE

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Dolmar PS-352 Manual de utilizare

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