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Guide tSafety Using tMountinTensionCheckiFuel ..FuelingChain LFilling CCheckiChain BInformaStartingOperatiOil QuaTaking CleaninAdjustinCheckinSpark Ain MufflReplaciand ReStoring CheckinChain SMaintaiSaw Ch

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* see "Guide to Using this Manual"

tion Before You Start .......... 24 / Stopping the Engine ........ 24ng Instructions .................... 27ntity Control * ...................... 28Care of Guide Bar ............... 29g the Air Filter ..................... 29g the Carburetor ................ 30g the Spark Plug ................ 32rresting Screen

er* ....................................... 33ng Starter Rope wind Spring ......................... 34the Machine ........................ 36g and Replacing procket ............................... 36

ning and Sharpeningain ...................................... 38

queries concerning your mach

Hans Peter Stihl

ents

o Using this Manual .............. 2Precautions ........................... 3he Saw .................................. 9g the Bar and Chain ........... 17ing the Saw Chain .............. 18

ng Chain Tension ................. 18.............................................. 19 ............................................ 20ubricant .............................. 21hain Oil Tank ...................... 22

ng Chain Lubrication ........... 22rake .................................... 23

Maintenance Chart ......................... 42Minimize Wear and Avoid Damage ................................ 44Main Parts and Controls ................. 45Specifications ................................. 46Special Accessories ....................... 46Ordering Spare Parts ..................... 47Maintenance and Repairs .............. 47Manufacturer's declaration of conformity ................................... 48Quality Certification ........................ 48

Dear Customer,Thank you for choosing a quaengineered STIHL product.This machine has been built umodern production techniquescomprehensive quality assuraEvery effort has been made to eyour satisfaction and troublefrof the machine.Please contact your dealer or sales company if you have any

2

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S 380

PictogAll the machinthis ma

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ramspictograms attached to the e are shown and explained in nual.

erating and handling instructions ported by illustrations.

ols in textividual steps or procedures ed in the manual may be marked ent ways:

ullit marks a step or procedure hout direct reference to an stration.

iption of a step or procedure that irectly to an illustration may item numbers that appear in the ion.le:

the screw (1) 2) ...

In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the symbols described below:

Warning where there is a risk of an accident or personal injury or serious damage to property.

Caution where there is a risk of damaging the machine or its individual components.

Note or hint which is not essential for using the machine, but may improve the operator’s under-standing of the situation and result in better use of the machine.

Note or hint on correct procedure in order to avoid damage to the environment.

Equipment and featuresThis instruction manual may several models with differenfeatures. Components that ainstalled on all models and rapplications are marked withasterisk (*). Such componenbe available as special accefrom your STIHL dealer.

Engineering improvementsSTIHL’s philosophy is to continuaimprove all of its products. As a rengineering changes and improvare made from time to time. If theoperating characteristics or the appearance of your machine diffthose described in this manual, pcontact your STIHL dealer for assistance.

Therefore some changes, modifiand improvements may not be cin this manual.

e to Using this Manual

3MS 380

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those thwith an

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Safet

Because a chainsaw is a high-speed wood-cutting tool some special safety precautions must be observed in addition to

at generally apply when working axe or hand saw.

It is important that you read and understand the owner's manual before using your chainsaw for the first time. Non-observance of the

g safety precautions may cause or even fatal injury.

observe local safety regulations, ds and ordinances.

ave never used this chainsaw efore:

our STIHL dealer or other nced user show you how to your chainsaw or attend a

course of training in chainsaw on.

should never be allowed to use a w.

n, bystanders and animals not be allowed in the area where saw is in use.

The chainsaw user is responsible for accidents or risks involving third parties or their property.

Do not lend or rent your chainsaw without the owner's manual. Be sure that anyone using your saw understands the information contained in this manual.

You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol) which might impair vision, dexterity or judgment.

If you have a pacemaker: The ignition system of this power tool produces a very weak electromagnetic field. It is not possible to exclude the risk of it interfering with some types of pacemakers. To avoid health problems, STIHL recommends that you ask your doctor and the pacemaker manufacturer for advice.

STIHL recommends only guide bsaw chains and chain sprockets supplied by STIHL and explicitly approved for your chainsaw modSTIHL (see specifications and sadocumentation).

The characteristics of these compare specifically designed to matcchainsaw model and meet your performance requirements (cuttincapacity, vibration, kickback beh

Only use attachments supplied bSTIHL or explicitly approved for chainsaw model by STIHL. Otheattachments must not be used beof the increased risk of accidentsnegative effects on the chainsaw

Never attempt to modify your chain any way since this can be extrdangerous and result in serious injury. STIHL cannot accept any for personal injury or damage to pcaused by modifications to the chainsaw, using attachments notapproved by STIHL or non-approguide bars and saw chains.

y Precautions

4

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S 380

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Do not scarvesrestrict with thelong ha

STIHL person

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.

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g and Equipmentroper protective clothing and ent.

Clothing must be sturdy and snug-fitting, but allow complete freedom of movement. Wear overalls with a cut-retardant inlay - a STlHL safety coverall is

ended.

wear loose-fitting garments, , jewelry or anything that could movement or become entangled saw, wood or brush. Confine ir (e.g. with a hair net).

Wear steel-toed safety boots with non-slip soles.

Wear a safety hard hat to protect your head.

Wear safety glasses and sound barriers, i.e. ear plugs or ear muffs.

Wear heavy-duty, non-slip gloves, preferably made of chrome leather.

offers a comprehensive range of al protection equipment

Transporting the ChainsawAlways engage the chain brake and fit the chain guard (scabbard) before carrying the saw short distances. Also stop the engine before carrying the saw longer distances (more than about 50 m).

Always carry the saw by the front handle – with the hot muffler away from your body – the guide bar must point to the rear. To avoid serious burn injuries, avoid touching hot parts of the machine, especially the surface of the muffler.

Transporting by vehicle: When transporting in a vehicle, properly secure your saw to prevent turnover, fuel spillage and damage.

When your saw is not in use, put it down in a safe place so that it does not endanger anybody.

Fueling Gasoline is an extremely flammafuel. Keep clear offlames and fire. Dospill any fuel.

Stop the engine before refueling

Do not refuel while the engine is since fuel may overflow and catc

In order to reduce risk of burns opersonal injury from escaping gaand fumes, unscrew the fuel capcarefully to allow any pressure bin the tank to release slowly.

Fuel your chainsaw in a well-venarea, outdoors only. If you spill fuethe saw immediately – if fuel getyour clothing, change immediate

5MS 380

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The sascrew-tcap.

This hevibratiotighteneand spi

To reduburn infuel leathe eng

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aw. Do unning r saw

nd th the

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r or in ine

er

rotate of the

w comes standard with either a ype or bayonet-type fuel filler

After fueling, tighten down the screw-type fuel filler cap as securely as possible.

Insert the fuel filler cap with hinged grip (bayonet type) correctly in the opening, turn it clockwise as far as stop and fold the grip down.

lps reduce the risk of unit ns causing an improperly d fuel cap to loosen or come off

ll quantities of fuel.

ce the risk of serious or fatal juries, check for fuel leakage. If kage is found, do not start or run ine until leak is fixed.

Before StartingCheck that saw is properly assembled and in good condition - refer to appropriate chapters in the owner’s manual:

– Check operation of chain brake.– Correctly mounted guide bar.– Correctly tensioned chain.– Smooth action of throttle trigger and

throttle trigger interlock – throttle trigger must return automatically to idle position.

– Master control/stop switch must move easily to STOP or $

– Check that spark plug boot is secure – a loose boot may cause arcing that could ignite combustible fumes and cause a fire.

– Never attempt to modify the controls or safety devices

– Keep the handles dry and clean – free from oil and pitch – for safe control.

To reduce risk of personal injury, do not operate your saw if it is damaged or not properly assembled.

Starting the EngineStart the engine at least 3 metersthe fueling spot, outdoors only.

Your chain saw is a one-person snot allow other persons near the rchainsaw. Start and operate youwithout assistance.

To reduce risk of chain rotation apersonal injury, lock the chain wichain brake before starting.

Do not drop start the chainsaw.The correct starting procedure isdescribed in your owner's manua

During OperationIn the event of impending dangean emergency, switch off the engimmediately by moving the MastControl/stop switch to $ or d.

When the engine is running:Note that the chain continues to for a short period after your let gothrottle trigger.

6

English

S 380

Take sp– dampground

Avoid sor in dit

Take spfooting

Do not distancneeded

Be partwearingyour abalarms,

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M

ecial care in slippery conditions , snow, ice, on slopes, uneven and freshly debarked logs.

tumbling on stumps, roots, rocks ches.

ecial care to maintain good at all times.

work alone – keep within calling e of others in case help is .

icularly alert and cautious when hearing protection because ility to hear warnings (shouts, etc.) is restricted.

et tired, take a break in good

ce risk of fire, keep hot exhaust nd hot muffler away from easily tible materials (e.g. wood chips,

ry grass, fuel).

Your chainsaw produces toxic exhaust fumes as soon as the engine is running. These fumes may be colorless and odorless. Never run the

engine indoors or in poorly ventilated locations, even if your model is equipped with a catalytic converter.

To reduce the risk of serious or fatal injury from breathing toxic fumes, ensure proper ventilation when working in trenches, hollows or other confined locations.

The dusts (e.g. sawdust) produced during cutting may be dangerous to health. If the work area is very dusty, wear a respirator.

To reduce risk of finot smoke while operating or standnear your chainsawthat combustible fuvapor may escape

the fuel system.

If your chainsaw is subjected to unusually high loads for which it wdesigned (e.g. heavy impact or aalways check that it is in good cobefore continuing cutting work.

Check the fuel system for leaks amake sure the safety devices areworking properly. Do not continuoperating your saw if it is damagcase of doubt, have the saw checyour STIHL servicing dealer.

Make sure the chain does not rowhile the engine is idling. If neceadjust idle speed properly. If the still rotates, have the saw checkeyour STIHL dealer.

7MS 380

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Dange

Kickbacsuddenuncontr

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h both grip.

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., tough ain.

nce.

ight.

rs of kickbackKickback can result in serious or fatal injury.

k causes the the saw to be ly thrown up and back in an olled arc towards the operator.

Kickback may occur in the following situations

– when the upper quadrant of the bar nose unintentionally contacts wood or another solid object, e.g. another limb during limbing,

– when the chain at the nose of the guide bar is pinched in the cut.

Quickstop chain brakeThis device reduces the risk of injury in certain situations – it cannot prevent kickback. If activated, the brake stops the saw chain within a fraction of a second – for a description of this device refer to "Chain Brake" chapter in this manual.

To reduce the risk of kickback– Work cautiously using prope

cutting techniques.– Hold the chainsaw firmly wit

hands and maintain a secure– Always cut at full throttle.– Be aware of the location of th

bar nose at all times.– Do not cut with the bar nose– Take special care with small

limbs, they may catch the ch– Never cut several limbs at o– Do not overreach.– Never cut above shoulder he

001B

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S 380

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– Bethapin

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not attempt plunge cuts if you not experience in this cutting hnique. wary of position of log and forces t may cause the cut to close and ch the chain.ays cut with a correctly rpened, properly tensioned in – the depth gauge setting st not be too large.uced kickback chain and a guide a narrow radius nose.

VibrationsProlonged use of the unit may result in vibration-induced circulation problems in the hands (whitefinger disease).

No general recommendation can be given for the length of usage because it depends on several factors.

The period of usage is prolonged by:

– Hand protection (wearing warm gloves)

– breaks

The period of usage is shortened by:

– Any personal tendency to suffer from poor circulation (symptoms: frequently cold fingers, itching).

– Low outside temperatures.– Gripping force (a tight grip hinders

circulation).Continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice.

Maintenance and RepairsService the machine regularly. Dattempt any maintenance or repanot described in your owner's ma

Have all other worked performed STIHL dealer. Only use genuine replacement parts. Never modifymachine in any way as this couldin serious injury.

Always shut off the engine– before checking chain tensio– before retensioning the chai– before replacing the chain.– before rectifying problems.

Check the chain catcher –and replace it if damaged.

Observe sharpening instructiofor safe and correct handling of schain and guide bar.Keep the chain in good conditiontimes. It must be properly sharpetensioned and well lubricated.

9MS 380

English

Alwayssprocke

Check periodic

Check regular

Do not conditioreducehearingthe mu

Use onapprovin good“Specif(insulatconnec

To reduas a recylindebefore starter or the s

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change the chain, guide bar and t in good time.

condition of clutch drum ally.

the fuel tank for leaks at short intervals.

touch a hot muffler. Check n of muffler at regular intervals to

the risk of fires and damage to . Do not operate your machine if

ffler is damaged or missing.

ly a spark plug of the type ed by STIHL and make sure it is condition (see chapter ications”). Inspect ignition lead ion in good condition, secure tion).

ce the risk of fire and burn injury sult of sparking outside the r, move the stop switch to STOP turning the engine over on the with the spark plug boot removed park plug unscrewed.

Store fuel and chain lubricant in properly labelled, safety-type canisters only. Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapour.

To reduce the risk of injury, shut down your chainsaw immediately in the event of a chain brake malfunction.Take the saw to your STIHL dealer. Do not use your chainsaw until the fault has been fixed (see chapter “Chain Brake”).

CuttingUse your saw for cutting wood owooden objects only.

Do not operate your chainsaw wstarting throttle lock engaged. Enspeed cannot be controlled with throttle trigger in this position.

Work calmly and carefully – in daconditions and only when visibilitgood – ensure you do not endanothers – stay alert at all times.

Use the shortest possible guide bchain, guide bar and chain sprocmust match each other and your

Always hold your saw firmly withands - right hand on the rear heven if you are left-handed. To esafe control, wrap your fingers tigaround the front handle and conthandle.

Using the Saw

10

English

S 380

Positionclear of

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Do not

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001B

A03

7 K

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A

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the saw so that your body is the cutting attachment.

pull the saw out of the cut with in running.

ur saw for cutting only. It is not d for prying or shoveling away oots or other objects.

underbuck freely hanging limbs.

ecial care when cutting ed wood – sharp slivers of wood caught and flung in your n.

ure your saw does not touch any materials: , nails, etc. may be flung off, e the saw chain or cause the saw back unexpectedly.

If on a slope, stand on the uphill side or to one side of the log. Watch out for rolling logs.

When working at heights:

– Always use a lift bucket. – Never work on a ladder.– Never work in a tree.– Never work on any insecure

support.– Do not work above shoulder height.– Never operate the saw with one

hand.

Run the engine at full throttle, enthe spiked bumper firmly in theand then start cutting.

Never work without the spiked buthe saw may pull you forwards abalance.

A = Pull-in

Pull-in occurs when the chain onbottom of the bar is suddenly pincaught or encounters a foreign othe wood. The reaction of the chathe saw forward. Always hold thspiked bumper securely againtree or limb.

001B

A08

2 K

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001B

A03

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11MS 380

English

B = Pu

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ing

ucture,

d – do

of the dry or

rotted).

shback

ck occurs when the chain on the he bar is suddenly pinched, or encounters a foreign object in d. The reaction of the chain he saw straight back toward the r.

Felling and limbingDo not attempt felling or limbing unless you have been trained in the necessary techniques.

Observe local regulations on felling techniques.

Bystanders must not be allowed in the felling area – other than helpers.

Make sure no-one is endangered by the falling tree – the noise of your engine may drown any warning calls.

Maintain a distance of at least 21/2 tree lengths from next felling site.

Determine direction of fall andescape pathsSelect a clearing into which the trfall.

Pay special attention to the followpoints:

– The natural lean of the tree.– Any unusually heavy limb str

damage to tree.– The wind direction and spee

not fell in high winds.– Direction of slope.– Neighboring trees.– Snow load.– Check the general condition

tree. Take particular care withdamaged trees (decayed or

001B

A03

8 K

N

B

001B

A08

8 LÄ

2 /1 2

1 1/1 2

12

English

S 380

A = DirB = Es

– Esevedire

– Repat

– Pladison

– Alwtrewitandesc

ake hroud nned

ning tion

ys of cuts – ons on

001B

A15

3 K

N

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ection of fallcape paths

tablish paths of escape for ryone concerned – opposite to ction of fall at about 45°.

move all obstacles from escape hs.ce all tools and equipment a safe tance away from the tree, but not the escape paths.ays keep to the side of the falling

e. When the tree starts to fall, hdraw the bar, shut off the engine walk away on the preplanned ape path.

– On steep slopes, prepare escape paths parallel to the slope.

– Watch out for falling limbs and pay attention to crown.

Preparing work area at base of tree– First clear the tree base and work

area from interfering limbs and brush – safe footing for all persons concerned.

– Clean lower portion of tree base with an axe. Sand, stones and other foreign objects will dull the saw chain.

– Remove large buttress roots: Make vertical cut first, then horizontal – but only if tree is in sound condition.

Making felling notch

When making the felling notch, muse of the gunning sight on the sand fan housing to check the pladirection of fall.

Position your saw so that the gunsight points in exactly in the direcyou want the tree to fall.

There are several permissible wamaking the horizontal and angledobserve country-specific regulatifelling techniques.

STIHL recommends the followingsequence:

B

001B

A04

0 K

N

A45°

45°

B

001B

A14

6 K

N

13MS 380

English

C = Fedire

: Madiresig

: Ma45°

: Chif n

Importa

– Fepla

– As– Cu

the

he

tly notch.

ameter

001B

A14

4 K

N

D

lling notch determines the ction of fall

ke the horizontal cut – check the ction of fall with the gunning

ht.ke top cut at an angle of about .eck the felling notch and correct it ecessary.nt points:

lling notch at a right angle to nned direction of fall. close as possible to the ground.t to a depth of about 1/5 to 1/3 of trunk diameter.

Sapwood cutsSapwood cuts help prevent long-fibered wood splintering when the tree falls. Apply the cuts at both sides of the trunk at the same height as the bottom of the felling notch, to a depth of about 1/10 of the trunk diameter. On large diameter trees, cut to no more than the width of the guide bar.

Do not use sapwood cuts on diseased trees.

Felling cutShout a warning before starting tfelling cut.

– Make the felling cut (D) slighhigher than bottom of felling

– Cut horizontally.– Leave approx. 1/10 of tree di

uncut. This is the hinge.

001B

A14

3 K

N

C

C

001B

A15

0 K

N

D

14

English

S 380

Drive wtime – uplastic damag

– Thfall

– Docoufall

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ood aw

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001B

A14

8 K

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M

edges into the felling cut in good se only wooden, aluminum or

wedges – never steel, which can e the chain and cause kickback.

e hinge (E) helps control the ing tree.

not cut through the hinge – you ld lose control of the direction of

– this could result in an accident.

– If the trunk is rotten, leave a wider hinge.

Shout a warning immediately before the tree falls.

Small diameter trees:simple fan cutApply the spiked bumper behind the hinge – pivot the saw around this point – only as far as the hinge. The spiked bumper rolls against the trunk.

Large diameter trees: sectioning methodIf the diameter is greater than theof the guide bar, use the sectionimethod.

Use the spiked bumper as a pivoavoid repositioning the saw morenecessary.

First cut (1):Nose of guide bar should enter wjust behind the hinge – hold the shorizontally and swing it as far apossible.

001B

A14

5 K

N

E

E

001B

A14

7 K

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1

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When rkeep thkerf to the spik

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epositioning for the next cut (2), e guide bar fully engaged in the keep felling cut straight – apply ed bumper.

t (3): he spiked bumper as for the fan cut.

cut through the hinge!

Plunge-cuttingDo not attempt plunge-cutting unless you are experienced in this cutting technique.

– Use a low kickback chain and be extremely cautious.

– For heartwood cut.– For felling leaners.– For relieving cuts during bucking.– For DIY projects.

Begin cut by applying lower portion of the guide bar nose (4) – do not use upper portion because of risk of kickback. Cut until depth of kerf is twice the width of the guide bar.

Swing saw slowly (5) into plunge-cutting position. Take care because of the risk of kickback or pushback.

Make the plunge cut (6) very carefully. Danger of pushback.

Heartwood cutPerform heartwood cut

– if tree diameter is more thanthe length of the guide bar.

– if a large portion of heartwooremains uncut on large diamtrees.

– on trees that are difficult to febeech), to prevent heartwoosplintering and maintain plandirection of fall.

– on soft deciduous trees to retension in lying log and prevslivers in the center of the hibeing torn out of the log.

: Begin plunge cut by insertingbar in the felling notch and thenlarge the cut to both sides

001B

A14

9 K

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2

3

45

6

001B

A15

4 K

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16

English

S 380

Exercis– wit– wit

unfand

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Dry or rotted) that is dassesstackle,

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ension

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001B

A15

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e extreme cautionh leanersh trees that have fallen avorably between other trees are under strain

en working in blowdown areas.work with the chainsaw in such tances. Use block and tackle, inch or tractor.

t exposed and cleared logs. clear area for cutting.

damaged trees (decayed or represent a considerable danger ifficult or almost impossible to

. Use aids such as block and cable winch or tractor

elling in the vicinity of roads, s, power lines, etc.

xtra precautions. If necessary, the police, utility company or authority

Limbing– Use a low kickback chain.– Work with the saw supported

wherever possible.– Do not stand on the log while

limbing.– Do not work with the bar nose.– Watch for limbs which are under

tension. – Never attempt to cut several limbs

at once.

When cutting small logs– Use a sturdy and stable support –

sawhorse.– Never hold the log with your leg or

foot.– Never allow another person to hold

the log or help in any other way.

Lying or standing logs under t

Always start relieving cut (1) at thcompression side, then perform bucking cut (2) at the tension sidsaw will otherwise pinch or kick b

If not otherwise possible, make tbucking cut from the bottom upw(underbuck) – be wary of pushb

Lying logs must not touch the grothe point where the cut is made –this will damage the chain.

1

2

1

2

17MS 380

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You canon this chain s

The chaof the sRollommust m

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001B

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run chains of different pitches chainsaw – depending on the procket (see “Specifications”):

in pitch (1) must match the pitch procket and the guide bar (for atic). The drive link gauge (2) atch the bar groove width (3).

e pitch is marked on the chain ocket and guide bar in inches g. 3/8 or .325). The groove width

arked on the guide bar in limeters (e.g. 1.6).

on-matching components of the ng pitch or drive link gauge are together on the same machine y may be damaged beyond air after a short period of ration.

: Unscrew the nuts and take off the chain sprocket cover.

: Turn screw (4) counterclockwise until the tensioner slide (5) butts against left end of housing slot.

: Disengage the chain brake: hand guard (6) toward front

Wear work gloves to protecthands from the sharp cutters

: Fit the chain – start at the ba

ting the Bar and Chain

001B

A10

5 K

N

2

3a

t = a : 2

143B

A03

4 K

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4

5

001B

A10

7 K

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6

18

English

S 380

: Fit cutpoipegholspr

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: Reandtigh

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143B

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the guide bar over the studs (7) –ting edges on top of bar must nt to right – and engage the of the tensioner slide in locating

e (8) – place the chain over ocket (9) at the same time.

w turn tensioning screw (10) ckwise until there is very little in sag on the underside of the – and the drive link tangs are ated in the bar groove.fit the sprocket cover – screw on the nuts only finger-t.

to “Tensioning the Saw Chain”.

Retensioning during cutting work:

: Shut off the engine first –and then loosen the nuts.

: Hold the bar nose up and use screwdriver to turn tensioning screw (1) clockwise until chain fits snugly against the underside of the bar.

: While still holding the bar nose up, tighten down the nuts firmly.

: Go to chapter “Checking Chain Tension”.

A new chain has to be retensioned more often than one that has been in use for some time.

: Check chain tension frequently – see chapter "Operating Instructions".

: Shut off the engine.: Wear work gloves.: Chain must fit snugly agains

underside of the bar – and, wchain brake disengaged, it mbe possible to pull the chainthe bar by hand.

: If necessary, retension the cA new chain has to be retensioneoften than one that has been in usome time.

Check chain tension frequently –"Operating Instructions".

9 77

8 10

001B

A10

9 K

N

Tensioning the Saw Chain

1

133B

A02

4 K

N

Checking Chain Tensio

19MS 380

English

Your engasolin

The qumix ratithe funengine.

Unratmaengwe

GasolUse ongasolinof 90. Igrade gpremiu

Foreapre

If your catalytiunleade

A fwilthe

storing ister nd mix

l:

ine

Fuel

000B

A04

2 K

N

gine requires a mixture of e and engine oil.

ality of these constituents and the o have a decisive influence on ction and service life of the

suitable fuels or lubricants or mix ios other than those specified y result in serious damage to the ine (piston seizure, rapid rate of

ar, etc.).

inely high-quality mid-grade e with a minimum octane rating f the octane rating of the mid-asoline in your area is lower, use m fuel – leaded or unleaded.

r health and environmental sons, you should give ference to unleaded gasoline.

machine is equipped with a c converter, you must use d gasoline.

ew tankfuls of leaded gasoline l greatly reduce the efficiency of catalytic converter.

Engine OilUse only quality two-stroke engine oil. We recommend STIHL two-stroke engine oil since it is specially formulated for use in STlHL engines and guarantees a long engine life. Use only STIHL 50:1 two-stroke engine oil for the fuel mix in models with a catalytic converter.

If no STIHL two-stroke engine oil is available, use only quality two-stroke oil designed for use in air cooled engines. Do not use oils designed for water cooled engines or engines with a separate lubricating system (e.g. conventional four-stroke engines).

Poor quality gasoline or engine oil may damage the engine, sealing rings, hoses and the fuel tank.

Mixing Fuel

Avoid direct skin contact withgasoline and avoid inhaling gasoline vapor.

: Use a canister approved for fuel. Pour oil (1) into the canfirst, then add gasoline (2) athoroughly.

Mix RatioSTIHL 50:1 two-stroke engine oi50 parts gasoline to 1 part oil

Other high-quality two-stroke engoils:25 parts gasoline to 1 part oil

1 2

MIX

20

English

S 380

Examp

StorinFuel mOnly mwork. Scaniste

: Thcanma

Precan

: ClefroDiscleaccand

ht.

se

Gaso-line

Liters15

10152025

001B

A16

0 K

N00

1BA

161

KN

M

les

g Fuelix ages: ix sufficient fuel for a few months tore in approved safety-type fuel rs in a dry and safe location.

oroughly shake the mixture in the ister before fueling your chine.

ssure may build up in the ister – open it carefully.

an the fuel tank and canister m time to time.pose of remaining fuel and aning fluid properly in ordance with local regulations environment requirements.

: Before fueling, clean the filler cap and the area around it to ensure that no dirt falls into the tank.

: Position the machine so that the filler cap is facing up.

Take care not to spill fuel while fueling and do not overfill the tank. The STIHL filler nozzle* is recommended for this purpose and also helps you avoid inhaling fuel vapor.

* see “Guide to Using this Manual“

Opening the cap

: Raise the grip until it is uprig

: Turn the cap counterclockwi(approx. a quarter turn).

: Remove the filler cap.

STIHL engine oil50:1

Other high-quality TC oils25:1

Liters (cc) Liters (cc)0.02 (20) 0.04 (40)0.10 (100) 0.20 (200)0.20 (200) 0.40 (400)0.30 (300) 0.60 (600)0.40 (400) 0.80 (800)0.50 (500) 1.00 (1000)

Fueling

001B

A15

9 K

N

21MS 380

English

Closin

: Fit mu

: Tursto

: Focap

If the gwith thedoes noneck, thtighteneabove s

uide entally nd bar adable nded.sistant ) since o resin. hat are in the h and oil

guide to use

g the cap

the cap - grip upright -marks st line up.n the cap clockwise as far as p (approx. a quarter turn).

ld the grip flush with the top of the .

rip does not lie completely flush cap and the detent on the grip t engage the recess in the filler e cap is not properly seated and d and you must repeat the teps.

Change the fuel pickup body once every year: Drain the fuel tank.: Use a hook to pull the fuel pickup

body out of the tank and take it off the hose.

: Push the new pickup body into the hose.

: Place the pickup body in the tank.

For automatic and reliable lubrication of the chain and gbar – use only an environmcompatible quality chain alubricant. Rapidly biodegrSTIHL Bioplus is recommeBiological chain oil must be reto aging (e.g. STIHL Bioplusit will otherwise quickly turn tThis results in hard deposits tdifficult to remove, especiallyarea of the chain drive, clutcchain. It may even cause thepump to seize.

The service life of the chain and bar depends on the quality of thelubricant. It is therefore essentialonly a specially formulated chainlubricant.

001B

A16

2 K

N00

1BA

163

KN

165B

A00

3 K

N

Chain Lubricant

22

English

S 380

If speciyou masingle gwith a voutside

DoMerencauis e

Wanecandlub

w off a

out runs

ment within

on and g work.

n in for

ain see

ation

143B

A02

4 K

N

M

al chain lubricant is not available, y - in an emergency - use an HD rade or multigrade engine oil iscosity that suits the prevailing temperature.

not use waste oil! dical studies have shown that ewed contact with waste oil can se skin cancer. Moreover, waste nvironmentally harmfull!

ste oil does not have the essary lubricating properties is unsuitable for chain

rication.

: Thoroughly clean the oil filler cap and the area round it to ensure that no dirt falls into the tank.

: Remove the filler cap.: Refill the chain oil tank every time

you refuel.: Close the filler cap.There must still be a small amount of oil in the oil tank when the fuel tank is empty.

If the oil tank is still partly full, the reason may be a problem in the oil supply system: Check chain lubrication, clean the oilways, contact your STlHL dealer for assistance if necessary.

The saw chain must always throsmall amount of oil.

Never operate your saw withchain lubrication. If the chaindry, the whole cutting attachwill be irretrievably damageda very short time. Always check chain lubricatioil level in tank before startin

Every new chain has to be brokeabout 2 to 3 minutes.

After breaking in chain, check chtension and adjust if necessary –“Checking Chain Tension”.

Filling Chain Oil Tank

001B

A15

8 K

N

Checking Chain Lubric

23MS 380

English

Lockin– in a– wh– at iThe chthe hannose byor whencertain

ed by ard high

ward and is uring

if the in any

rake

e the ward rottle chain ust be

Chain

g chain with chain braken emergency

en startingdling speedain is stopped and locked when d guard is pushed toward the bar the left hand – brake is activated by inertia in

kickback situations.

Releasing the chain brake: Pull the hand guard back toward the

front handle.

Always disengage chain brake before accelerating engine and before starting cutting work. The only exception to this rule is when you check operation of the chain brake.

High revs with the chain brake engaged (chain locked) will quickly damage the powerhead and chain drive (clutch, chain brake).

The chain brake is also activatthe inertia of the front hand guif the kickback force of the saw isenough: The hand guard is accelerated tothe bar nose – even if your left hnot behind the hand guard, e.g. dfelling cut.

The chain brake will operate onlyhand guard has not been modifiedway.

Check operation of chain bBefore starting work: Run engine at idle speed, engagchain brake (push hand guard tobar nose). Accelerate up to full thfor no more than 3 seconds – themust not rotate. The hand guard mfree from dirt and move freely.

Brake

143B

A01

1 K

N

143B

A01

2 K

N

24

English

S 380

ChainThe chwear. Itand mapersondealer,

– see ns".:

(2) and t the

ine has )

Full-timusers:

Semi-pusers (and con

Hobby occasio

2

215B

A00

2 K

N3

45

M

brake maintenanceain brake is subject to normal is necessary to have it serviced intained regularly by trained

nel, such as your STIHL servicing at the following intervals:

The four positions of the Master Control lever1 = Engine off –

ignition is switched off2 = Normal run position –

engine runs or can fireTo move the Master Control lever from 2 to 3 or 4, press down the throttle trigger interlock and squeeze throttle trigger at the same time.

3 = Warm start – this position is used to start a warm engine. The Master Control lever moves to the normal run position as soon as the throttle trigger is squeezed.

4 = Cold start – this position is used to start a cold engine.

: Observe safety precautions chapter on "Safety Precautio

: Push hand guard (1) forwardThe chain is now locked.Press down trigger interlock squeeze throttle trigger (3) asame time. Set the Master Control to:Position 4 if engine is cold.Position 5 if engine is warm(also use position 5 if the engbeen running but is still cold

e professional every 3 months

rofessional in agriculture struction): every 6

monthsandnal users: every 12

months

Information Before You Start

215B

A00

1 K

N

1234

Starting / Stopping the Engine

1

25MS 380

English

: Pla: Ma

cheobj

Bygen

: Howithanund

: Puhan

th your age – ng pull dle at

pe all break.

p back ly into er rope

ter stem.

143B

A02

0 K

N

ce your saw on the ground.ke sure you have a firm footing – ck that chain is not touching any

ect or the ground.

standers must be well clear of the eral work area of the saw.

ld the saw firmly on the ground h your left hand on the front dle – your thumb should be er the handlebar.

t your right foot into the rear dle and press down.

Alternative method of starting:: Hold the rear handle tightly between

your legs, just above the knees.: Hold the front handle firmly with

your left hand – your thumb should be under the handlebar.

: Pull the starter grip slowly wiright hand until you feel it engthen give the grip a brisk stroand push down the front hanthe same time.Do not pull out the starter rothe way – it might otherwise

: Do not let the starter grip sna– guide it slowly and verticalthe housing so that the startcan rewind properly.

If the engine is new, pull the starseveral times to prime the fuel sy

143B

A01

8 K

N

143B

A01

9 K

N

26

English

S 380

When e: Mo

pos: As

im(8)moengspe

.

Astheidliengoth

tures:art

c

til dry

s until

M

ngine begins to fire:ve Master Control lever (7) to ition 5 and continue cranking.

soon as engine runs, mediately blip the throttle trigger – the Master Control lever (7) will ve to the run position 9 and the ine will settle down to idling ed.

the chain brake is still engaged, engine must be returned to ng speed immediately – or the ine and chain brake might

erwise be damaged.

: Pull the hand guard back toward the front handle:= The chain brake is now disengaged – your saw is ready for operation.Always disengage the chain brake before accelerating the engine. High revs with the chain brake engaged (chain locked) will quickly damage the powerhead and chain drive (clutch, chain brake).

: Observe safety precautions.: Always check operation of chain

lubrication before starting work.

At very low outside tempera: Allow engine to warm up at p

throttle.

To shut down the engine:: Move Master Control lever to

If fuel tank has been run unand then refueled:: Pull starter rope several time

fuel system is primed.: Now start the engine.7

215B

A00

3 K

N8

95

143B

A01

2 K

N

27MS 380

English

If the eIf you dlever toenoughthe com

: Mopos

: Looarr

: Re

t be run for the s e rts n in the riod. m lings.

ner to e in he

brake unning h the hain at ge the h,

ngine doesn’t start:id not move the Master Control the "warm start" position quickly after the engine began to fire, bustion chamber has flooded.

ve Master Control (7) to run ition.sen knob (10) in direction of

ow.move carburetor box cover (11).

: Pull off the spark plug boot.: Unscrew and dry off the spark plug.: Set the Master Control lever to c: Press down the trigger interlock

lever – open the throttle wide and crank the engine several times with the starter to clear the combustion chamber.

: Install the spark plug and connect the spark plug boot (press it down firmly) – refit carburetor box cover.

: Set Master Control lever to warm start position – even if engine is cold.

: Now start the engine.

During break-in periodA factory new machine should noat high revs (full throttle off load)first three tank fillings. This avoidunnecessary high loads during thbreak-in period. As all moving pahave to bed in during the break-iperiod, the frictional resistances engine are greater during this peThe engine develops its maximupower after about 5 to 15 tank fil

Do not make the mixture leaachieve an apparent increaspower – this could damage tengine – see “Adjusting Carburetor”.

Always disengage the chainbefore opening the throttle. Rthe engine at higher revs witchain brake engaged (saw ca standstill) will quickly damaengine and chain drive (clutcchain brake).21

5BA

004

KN

7

10

11

215B

A00

5 K

N

Operating Instructions

28

English

S 380

DuringCheck A new coften thsome ti

Chain Tensionagainststill be Retens“Tensio

Chain The chThe dribar grojump ofRetensthe Saw

Alwfinias slacra

ired for od and

(on ry the

oil flow "E"

justing

usting

etted

001B

A15

7 K

N

M

operationchain tension frequentlyhain has to be retensioned more an one that has been in use for me.

cold: is correct when chain fits snugly the underside of the bar and can pulled along the bar by hand.ion if necessary – see ning the Saw Chain”.

at operating temperature: ain stretches and begins to sag. ve links must not come out of the ove – the chain may otherwise f the bar. ion the chain – see “Tensioning Chain”!

ays slacken off the chain after shing work. The chain contracts it cools down. If it is not ckened off, it can damage the nkshaft and bearings.

After long period of full-throttle operation Allow engine to run for a short while at idle speed so that engine heat can be dissipated by flow of cooling air. This protects engine-mounted components (ignition, carburetor) from thermal overload.

After finishing work: Slacken off the chain if you have

retensioned it at operating temperature during cutting work. The chain contracts as it cools down. If it is not slackened off, it could damage the crankshaft and bearings.

Storing your saw for a short period:Wait for engine to cool down. To avoid condensation, fill the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again.

Storing for a long period:See “Storing the Unit”!

Different quantities of oil are requdifferent bar lengths, types of wocutting techniques.

: Use the adjusting screw (1) underside of machine) to vaoil feed rate as required.

: E = Ematic position, mediumrate - turn adjusting screw to(Ematic position)

: To increase oil feed – turn adscrew clockwise.

: To reduce oil feed – turn adjscrew counter-clockwise.Your chain must always be wwith a film of lubricant.

* Special accessory

Oil Quantity Control *

1

29MS 380

English

: Tueveandchaweund

: Rethethethe

: Mewituse

* see

er, ake

er (1)

of

round

Takin

215B

A00

6 K

N

rn the bar over – ry time you sharpen the chain every time you replace the in – this helps avoid one-sided

ar, especially at the nose and erside of the bar.

gularly clean oil inlet hole (1), oilway (2) and bar groove (3).asure groove depth – h scale on filing gauge* – in area d most for cutting.

“Guide to Using this Manual”

If groove depth is less than specified:

: Replace the guide bar.The drive link tangs will otherwise scrape along the bottom of the groove – the cutters and tie straps will not ride on the bar rails.

Dirty air filters reduce engine powincrease fuel consumption and mstarting more difficult.

If there is a noticeable loss of engine power: Move the Master Control lev

to the normal run position.: Loosen knob (2) in direction

arrow.: Remove the carburetor box

cover (3). : Clean away loose dirt from a

the filter.

g Care of Guide Bar

2

001B

A11

9 K

N

1

3

3

Chain type

Pitch Minimum groove depth

Picco 3/8" P 5.0 mmRapid 1/4" 4.0 mmRapid 3/8"; 0.325" 6.0 mmRapid 0.404" 7.0 mm

Cleaning the Air Filter

1

2

3

30

English

S 380

: Un: Re

the: Tak

carthe

: Knyoucomout

Do notfleece

factory

r the

er t and

re is a eather, .

rew

en it is

ean mage and

or

M

screw the slotted nuts (4).move the filter (5) and separate two halves of the filter.e out the screw (6) in the burtetor box cover and remove prefilter (7).ock the filter out on the palm of r hand or blow it clear with pressed air from the inside

wards.

use a brush to clean the filter.

In case of stubborn dirt:: Wash the filter components in

STIHL universal cleaner or a clean, non-flammable solution (e.g. warm soapy water) and then dry.

: Always replace a damaged filter.

: Reassemble the filter components.: Make sure the choke shutter (8) and

torsion spring are properly seated:The hook of the torsion spring (9) must engage the slot (arrow).

: Secure the main filter and prefilter in position.

: Fit the carburetor box cover.

General InformationYour carburetor comes from the with a standard setting.

This is the optimum setting undebarometric pressure and climaticconditions at the factory.

It ensures your machine will delivmaximum power, be fuel efficienoperate reliably.

Retuning may be necessary if thechange in barometric pressure (waltitude), temperature or humidity

Adjustment of the high speed scchanges the power output and maximum RPM of the engine whrunning off load.

If the mixture is made too lthere is a risk of engine dadue to insufficient lubricationoverheating.

4

215B

A00

7 K

N

5

215B

A00

8 K

N6

7

Adjusting the Carburet

31MS 380

English

Stand(withou

: Sh: Ch

rep: Ca

scr(clo

: Optur

: Opfull

If ynotleasta

L) one

A) o run – of a

ngL) one

A) stops other ction.

215B

A01

1 K

N

ard Settingt tachometer)

ut off the engine.eck the air filter and clean or lace it if necessary.refully screw both adjusting ews down onto their seats ckwise).en high speed screw (H) one full n.en the low speed screw (L) one turn.

ou do not have a tachometer, do set the high speed screw any ner by turning it beyond the ndard setting.

Fine Tuning (with tachometer): Check the air filter and clean or

replace it if necessary.: Check chain tension.: Start the engine and run until it is

warm.: Adjust idle speed correctly (chain

must not rotate).: Starting from the standard setting,

use the high speed screw (H) to adjust the maximum engine speed with a tachometer to 12,500 rpm (with bar and properly tensioned chain).

If the mixture is made too lean there is a risk of engine damage due to insufficient lubrication and overheating.

Adjusting Idle Speed

Engine stops while idling: Open the low speed screw (

full turn.: Turn the idle speed screw (L

clockwise until chain begins tthen turn it back one quarterturn.

Chain runs when engine is idli: Open the low speed screw (

full turn.: Turn the idle speed screw (L

counterclockwise until chainrunning – then turn screw anquarter turn in the same dire

215B

A01

0 K

NLH

L

32

English

S 380

Erraticaccele(even topened

Idle set

: Turcourun

It is ususetting after evscrew (

ave :

ns.

– or badly

k plugs L –

a crew it

000B

A04

5 K

N

M

idling behavior, poor rationhough the low speed screw is one turn)

ting is too lean.

n the low speed screw (L) nterclockwise until engine s and accelerates smoothly.ally necessary to change the of the idle speed screw (LA) ery correction to the low speed L).

If engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug.

: Remove the spark plug – see "Starting / Stopping the Engine".

: Clean dirty spark plug.: Check electrode gap (A) and

readjust if necessary – see "Specifications".

: Rectify the problems which hcaused fouling of spark plug

– To much oil in fuel mix.– Dirty air filter.– Unfavorable running conditio

: Fit a new spark plug after about 100 operating hourssooner if the electrodes are eroded. Install only suppressed sparof the type approved by STIHsee "Specifications".

To reduce the risk of arcingand fire:

: If the spark plug comes withdetachable adapter nut (1), son firmly.

Checking the Spark Plug

000B

A00

2 K

N

1

33MS 380

English

On: Alw

to t

the

(6) ing

reen.heavily

reen in

215B

A02

4 K

N

6

all spark plugs: ays press the boot (2) firmly on he spark plug (3).

: If the engine is down on power, check the spark arresting screen in the muffler.

: Wait for the muffler to cool down.: Take out the screw (1).: Remove the spark arresting

screen (2).: Clean the spark arresting screen.

If the screen is damaged or heavilycarbonized, fit a new one.

: Take out the screws (3).: Remove muffler upper casing (4).

* see "Guide to Using this Manual"

: Remove the screw (5) insideupper casing.

: Bend back the retaining tabsand pull out the spark arrestscreen (7).

: Clean the spark arresting scIf the screen is damaged or carbonized, fit a new one.

: Install the spark arresting scthe reverse sequence.

3

000B

A05

0 K

N

2

Spark Arresting Screenin Muffler*

3

3

2

215B

A01

5 K

N14

5

7

34

English

S 380

: Re: Lift

crasid

: Usto c(2)

: CawaThduravo

with

t – turn nchor

tor.rter

pliers n the the ust

the

Replaand R

215B

A01

3 K

N

M

move the screws (1). the fan housing from the nkcase and pull it away to eways.

e a screwdriver or suitable pliers arefully remove the spring clip

from the starter post.refully remove the rope rotor with sher (3) and pawl (4).e rewind spring may pop out ing this procedure – take care to id injury.

: Use a screwdriver to pry the rope (5) out of the starter grip.

: Remove the remaining rope from the rotor and grip, making sure the sleeve is not pushed out of the grip.

: Thread the new rope through the top of the starter grip and guide bushing (6).

: Pull the rope through the rotor and secure it with a simple overhand knot.

: Coat rope rotor bearing boreresin-free oil.

: Slip rotor over the starter posit back and forth to engage aloop of the rewind spring.

: Fit the pawl (4) in the rope ro: Fit the washer (3) on the sta

post.: Use a screwdriver or suitable

to install the spring clip (2) ostarter post and engage it onpawl’s peg – the spring clip mpoint clockwise as shown in illustration.

cing Starter Rope ewind Spring

1

11

215B

A01

2 K

N

43

2

215B

A01

3 K

N

6

215T

I014

KN

5

43

2

35MS 380

English

Tensio

: Maropsevdire

: Hostra

: Re: Let

ont

The starope guone sidadding

When tmust stanothethe sprbreak.

: Taksuc

bottom outer

hten it

ousing the tarting .

215B

A01

7 K

N

ning the Rewind Spring

ke a loop in the unwound starter e and use it to turn the rope rotor en full revolutions in the ction of the arrow.

ld the rotor steady – pull out and ighten the twisted rope.

lease the rope rotor. go of rope slowly so that it winds o the rotor.

rter grip must locate firmly in the ide bushing. If the grip droops to e: Increase spring tension by one more turn.

he starter rope is fully extended it ill be possible to rotate the rotor r half turn. If this is not the case, ing is overtensioned and could

e one turn of rope off the rotor in h a case.

Replacing a Broken Rewind Spring: Remove the rope rotor.

: Remove the spring housing and parts of the spring.The bits of spring might still be under tension and could fly apart when you take them out of the fan cover. To reduce risk of injury, wear eye and face protection and work gloves.

: Use a screwdriver to carefully remove the parts of the spring.

: Lubricate the new spring with a few drops of non-resinous oil.

: Fit the new spring housing – plate must face up – engagespring loop on lug.

: Refit the rope rotor.: Tension the rewind spring.: Refit the fan housing and tig

down firmly.

: If the spring pops out of the hduring installation: Refit it in counterclockwise direction, soutside and working inwards

215B

A01

6 K

N

36

English

S 380

For per

: Drawe

: Ruthisdia

: Rebarcor

: Thpayfins

: If ylubcom

: Stolocchiper

lutch vere,

n the

Storin

M

iods of about 3 months or longer:

in and clean the fuel tank in a ll ventilated area.n engine until carburetor is dry, helps prevent the carburetor phragms sticking together.move the saw chain and guide , clean them and spray with rosion inhibiting oil.oroughly clean the unit, special attention to the cylinder and air filter.ou use a biological chain and bar ricant, e.g. STIHL BioPlus, pletely fill the chain oil tank.

re the unit in a dry and high or ked location, out of the reach of ldren and other unauthorized sons.

: Remove the chain sprocket cover, chain and guide bar.

: Disengage the chain brake:Pull hand guard toward the front handle.

Replacing the Chain Sprocket

– Replace the chain sprocket after using two Oilomatic chains.

– Replace sooner if the wear marks on the sprocket are deeper than approx. 0.5 mm since this would reduce the life of the chain. You can use a reference gauge (Special Accessories) to check the depth of the wear marks on sprockets.

It is best to use two chains in rotation with one sprocket.

Use only original STIHL chain sprockets to ensure correct operation of the chain brake.

Rim Sprocket

: Use a screwdriver to removethe E-clip (1).

: Take off the washer (2). : Examine the splines on the c

drum – if wear marks are seinstall a new clutch drum.

: Replace the rim sprocket (3)with cavities facing outward.

: Refit the washer and E-clip ocrankshaft.

g the Machine Checking and Replacing Chain Sprocket

001B

A12

1 K

N

37MS 380

English

Spur S

: Usthe

: Tak: Us

Accirc

: Tak: Re

cov

aft and ith

th spur

orm by hile ft.

r gear

nd side down

g must

the

procket, Clutch Drum

e a screwdriver to remove E-clip (1).e off the washer (2).

e circlip pliers (Special cessories) to remove the lip (4).e out the screws (5).move the side plate (6) and er (7) with cover washer (8).

: Remove the oil pump drive worm (9) by rotating it clockwise while pulling it off the pump shaft.

: Remove the spur sprocket or clutch drum (10) with sprocket, spur gear (11) and needle cage (12) from the crankshaft.

Check serviceability of spur gear and worm. Replace any worn or damaged parts.

Install in the reverse sequence:

: Clean the stub of the crankshneedle cage and lubricate wSTlHL grease (Special Accessories).

: Push the needle cage, spur sprocket and clutch drum wigear onto the crankshaft.

: Engage the oil pump drive wrotating it counterclockwise wpushing it onto the pump sha

: Lubricate the worm and spuwith STlHL grease (Special Accessories).

: Fit the cover, cover washer aplate, fit screws and tighten firmly.

: Install the circlip on the spursprocket – each end of the rinlocate on the top of a tooth.

: Replace the rim sprocket (3)with cavities facing outward.

: Fit the washer and E-clip oncrankshaft.

1 215B

A01

9 K

N8

5

67

524

215B

A02

0 K

N

9

10

11

12

38

English

S 380

CorrecA propethroughvery litt

Do not chain aeffort reresults

: Cle: Ch

link: Re

of tparorigIt iswitspeincpartookicres

g tools

MainSaw

le (°)B856085

689B

A02

1 K

N

M

tly sharpened chainrly sharpened chain slices wood effortlessly and requires le feed pressure.

work with a dull or damaged s it will increase the physical quired, produce unsatisfactory and a higher rate of wear.

an the chain.eck the chain for cracks in the s and damaged rivets.place any damaged or worn parts he chain and match the new ts to the shape and size of the inal parts. absolutely essential to comply

h the angles and dimensions cified below. If the saw chain is orrectly sharpened – and in ticular if the depth gauge is set low – there is a risk of increased kback of the chainsaw, with ulting risk of injury.

The chain pitch (e.g. 3/8") is marked on the depth gauge end of each cutter.

Use only special saw chain sharpening files. Other files have the wrong shape and cut.

Select file diameter according to chain pitch – see table “Sharpening Tools”.

You must observe certain angles when resharpening the chain cutter.

A = Filing angleB = Side plate angle

Cutter shapes:Micro = Semi-chiselSuper = Full chisel

The specified angles A and B areobtained automatically if the recommended files or sharpeninand correct settings are used.

taining and SharpeningChain

3/8

689B

A02

0 K

N

Chain type AngA

Rapid-Micro (RM) 30Rapid-Super (RS) 30Picco-Micro (PM/PMN) 30

A

B

39MS 380

English

Furthersame ounevenstraightbreak.

As thesafter su

: UsA file hresharpTools").marked

* see

right nd file ked on lder on e.

689B

A01

8 K

N90°

689B

A04

3 K

N

more, the angles must be the n all cutters. If angles are : Chain will run roughly, not in a line, wear quickly and finally

e requirements can be met only fficient and constant practice:

e a file holder*older must be used for manual ening (see table "Sharpening The correct filing angles are on the file holder.

“Guide to Using this Manual”

For checking angles

Use a STlHL filing gauge* (see table "Sharpening Tools"). This is a universal tool for checking the filing and side plate angles, depth gauge setting and cutter length. It also cleans the guide bar groove and oil inlet holes.

File correctly: Select sharpening tools according

to chain pitch.: Clamp the bar in a vise if necessary.: Lock the chain – push hand guard

forward.: To rotate the chain – pull hand guard

against handle.: Sharpen chain frequently, take

away as little metal as possible – two or three strokes of the file are usually enough.

* see “Guide to Using this Manual”

: Hold the file horizontally (atangle to side of guide bar) aaccording to the angles marthe file holder. Rest the file hothe top plate and depth gaug

689B

A02

5 K

N

90°60°85° 70° 80°

0°

35°

10°

30°

689B

A02

2 K

N

40

English

S 380

: Alwout

: Thforlift bac

: Avdriv

: Rowh

: Usbur

: Ch

All cutte

If the cuthey wimakes cause i

: Finall lencondongrin

ed

he en the

he rojects pth

ntil it is

689B

A04

7 K

N68

9BA

051

KN

M

ays file from the inside to the side of the cutter.e file only sharpens on the ward stroke – the file off the cutter on the kstroke.

oid touching the tie straps and e links with the file.

tate the file at regular intervals ile filing to avoid one-sided wear.e a piece of hardwood to remove rs from cutting edge.eck angles with the filing gauge.

rs must be the same length.

tters are not the same length, ll have different heights. This the chain run roughly and can t to break.

d the shortest cutter and then file other cutters back to the same gth. This can be very time suming – it is best to have it e in the workshop on an electric der.

Depth gauge setting

The depth gauge determines the height at which the cutter enters the wood and thus the thickness of the chip removed.

Specified distance or setting between depth gauge and cutting edge = a:This setting may be increased by 0.2mm (0.008") for cutting softwood in mild weather season – no frost.

Lowering depth gaugesThe depth gauge setting is reducwhen the chain is sharpened.

: Use a filing gauge to check tsetting every time you sharpchain.

: Place a filing gauge (1) that matches the chain pitch on tchain – if the depth gauge pfrom the filing gauge, the degauge has to be lowered.

: File down the depth gauge ulevel with the filing gauge.

Chain pitch Depth gaugesetting “a“

Inch (mm) mm (inch)1/4 (6.35) 0.65 (0.026)3/8 PMN (9.32) 0.45 (0.018)3/8 PM (9.32) 0.65 (0.026)0.325 (8.25) 0.65 (0.026)3/8 (9.32) 0.65 (0.026)0.404 (10.26) 0.80 (0.031)

689B

A02

3 K

N

a

1

41MS 380

English

: FileparmalowgauThchagau

rear rvice

ith the of the

not be the insaw.

hain chain

riod, n a

SharpeChain p ng kit2)

inch1/4 10273/8 PMN 10263/8 P 10270.325 10283/8 10290.404 1030

1) Use 2) cons

the top of the depth gauge allel to the stamped service rking (see arrow) – but do not er the highest point of the depth ge in this process.

e kickback tendency of the insaw is increased if the depth ges are too low.

: Place filing gauge on the chain – highest point of depth gauge must be level with the filing gauge.

On PM1 and RM2 chains thehump of the tie strap (with semarking) is lowered along wdepth gauge. The other partstriple-humped tie strap mustfiled since this may increasekickback tendency of the cha

: After sharpening, clean the cthoroughly, remove filings orgrinding dust – lubricate the thoroughly.

: Before long out-of-service peclean the chain and store it iwell-oiled condition.

689B

A04

4 K

N

689B

A05

2 K

N

ning Tools (special accessories)itch Round file Ø Round file File holder Filing gauge Flat file1) Sharpeni

(mm) mm (inch) Part No. Part No. Part No. Part No. Part No.(6.35) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007(9.32) 4.0 (5/32) 5605 772 4006 5605 750 4327 0000 893 4000 0814 252 3356 5605 007(9.32) 4.0 (5/32) 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007(8.25) 4.8 (3/16) 5605 772 4806 5605 750 4328 1110 893 4000 0814 252 3356 5605 007(9.32) 5.2 (13/64) 5605 772 5206 5605 750 4329 1110 893 4000 0814 252 3356 5605 007(10.26) 5.5 (7/32) 5605 772 5506 5605 750 4330 1106 893 4000 0814 252 3356 5605 007

triangular file 0811 421 8971 for PM1 and RM2isting of file holder with round file, flat file and filing gauge

42

English

S 380

1) STIH2) see

Main

Pleaseoperatcuttingtropicause th if

dam

aged

as re

quire

d

Comple

ThrottleControl

Chain bX

Pickup b

X

Fuel tan

Chain o

Chain lu

Saw cha

X

Guide bX

X

Chain s

Air filterX

AV elemX

Cooling

Cylinde

M

L dealer"Chain brake"

tenance Chart

note that the following maintenance intervals apply for normal ing conditions only. If your daily working time is longer than normal or conditions are difficult (very dusty work area, resin-rich wood, l wood etc.), shorten the specified intervals accordingly. If you only

e saw occasionally, extend the intervals accordingly. befo

re

star

ting

wor

k

afte

r fin

ishi

ngw

ork

or d

aily

afte

r eac

hre

fuel

ing

stop

wee

kly

mon

thly

ever

y 12

mon

ths

if pr

oble

m

te machineVisual inspection (condition, leaks) X X

Clean X

trigger, trigger interlock, Master Check operation X X

rakeCheck operation X X

Check 1)2)

ody/filter in fuel tank

Check X

Clean, replace filter element X X

Replace pickup body X X

k Clean X

il tank Clean X

brication Check X

in

Inspect, also check sharpness X X

Check chain tension X X

Sharpen

ar

Check (wear, damage) X

Clean and turn over

Deburr X

Replace X

procket Check X

Clean X

Replace X

ents (rubber buffers, springs)Inspect X X

Replace 1) X

inlets Clean X

r fins Clean X X

43MS 380

English

2) Firmof pmorope

* see

Pleaseoperatcuttingtropicause th as

requ

ired

CarbureX

Spark p

All acce(not adj X

Spark a

Chain c

ly tighten cylinder base screws rofessional saws (3.4 kW or e) after 10 to 20 hours of ration

“Guide to Using this Manual“

note that the following maintenance intervals apply for normal ing conditions only. If your daily working time is longer than normal or conditions are difficult (very dusty work area, resin-rich wood, l wood etc.), shorten the specified intervals accordingly. If you only

e saw occasionally, extend the intervals accordingly. befo

re

star

ting

wor

k

afte

r fin

ishi

ngw

ork

or d

aily

afte

r eac

hre

fuel

ing

stop

wee

kly

mon

thly

ever

y 12

mon

ths

if pr

oble

m

if da

mag

ed

torCheck idle adjustment – chain must not rotate X X

Readjust idle

lug Readjust electrode gap X

ssible screws and nuts usting screws) 2) Retighten

rresting screen* in mufflerInspect X

Clean or replace X

atcherCheck X

Replace X

44

English

S 380

Observhelps rewear an

The pomaintaiand attmanua

The uscausedprecauinstructin partic

– Altpro

– UsAttapp

– Uswh

– Uscom

– Cocondef

earsubject ring with e type placed

:

MinimAvoid

M

ing the instructions in this manual duce the risk of unnecessary d damage to the power tool.

wer tool must be operated, ned and stored with the due care ention described in this owner’s l.

er is responsible for all damage by non-observance of the safety tions, operating and maintenance ions in this manual. This includes ular:

erations or modifications to the duct not approved by STIHL.ing attachments, Power Tool achments or cutting tools not roved by STIHL.

ing the product for purposes for ich it was not designed. ing the product for sports or

petitive events.nsequential damage caused by tinuing to use the product with ective components.

Maintenance WorkAll the operations described in the "Maintenance Chart" must be performed on a regular basis. If these maintenance operations cannot be performed by the owner, they should be performed by an authorized STIHL servicing dealer.

If these operations are not carried out as specified, the user assumes responsibility for any damage that may occur. Among other things, this includes:

– Damage to the engine due to neglect or deficient maintenance (e.g. of air and fuel filters), incorrect carburetor adjustment or inadequate cleaning of cooling air inlets (intake ports, cylinder fins).

– Corrosion and other consequential damage resulting from improper storage.

– Damage and consequential damage resulting from the use of parts other than original STIHL replacement parts.

– Damage resulting from maintenance or repair work not performed by authorized STIHL servicing dealers.

Parts Subject to Wear and TSome parts of the power tool are to normal wear and tear even duregular operation in accordance instructions and, depending on thand duration of use, have to be rein good time. Among other parts, this includes

– Saw chain, guide bar– Drive components (Clutch,

clutch drum, chain sprocket)– Filters (air, oil, fuel)– Starter mechanism– Spark plug– Components of anti-vibration

system

ize Wear and Damage

45MS 380

English

ck

ual"

Main

1 Carburetor box cover twist lo 2 Carburetor adjusting screws 3 Spark plug boot 4 Chain brake 5 Chain sprocket 6 Chain sprocket cover 7 Chain tensioner 8 Chain catcher 9 Spiked bumper 10 Guide bar 11 Oilomatic saw chain # Serial number

12 Oil tank filler cap 13 Muffler with spark arresting

screens*14 Front hand guard 15 Front handle (handlebar)16 Starter grip17 Fuel tank filler cap 18 Master Control lever 19 Throttle trigger 20 Throttle trigger interlock 21 Rear handle 22 Rear hand guard

* see "Guide to Using this Man

Parts and Controls

7

215B

A02

2 K

N

#1 2

3

4

5

6

8

9

10

11

16

1514

12

13 20

21

2219

18

17

215B

A02

3 K

N

46

English

S 380

EnginSTIHL

1) Weidlinsam

2) Dep3) Low

during

ore pecial

DisplacBore:Stroke:MS 380Engineto ISO

MS 380Engineto ISO

Idle speMax. peengine and cha

SoundLpeq toSoundLweq toVibratimeasuaeq to IHandleHandle

Spec

M

esingle cylinder two-stroke engine

ighted equivalent level includes g, full load and racing with the e duration of exposureending on muffler version compression engine

Ignition systemElectronic magneto ignition

Spark plug (suppressed)Bosch WSR 6 F, NGK BPMR 7 A, Champion RCJ 6 Y Electrode gap: 0.5 mm

CarburetorAll position diaphragm carburetor with integral fuel pump

Fuel tank capacity: 0.68 l (680 cm3)

Öltankinhalt: 0.36 l (360 cm3)

Weight (without bar and chain)6.6 - 6.7 kg

Cutting AttachmentGuide barsRollomatic, Duromatic

Bar lengthsRollomatic 37, 40, 45, 50, 55 and 63 cmDuromatic 37, 40, 45, 50, 55 and 63 cm

Oilomatic saw chain9.32 mm (3/8") RapidDrive link gauge: 1.6 mm

Chain sprockets7 and 8-tooth 3/8" rim sprocket7-tooth 3/8" spur sprocket

Chain lubrication Fully automatic speed-controlled rotary piston oil pump. Additional manual oil flow control.

File holder with round fileFiling gaugeReference gaugesSTIHL lubricating greaseSTIHL filler nozzle for STIHL canistershelps avoid spills and overfilling refueling.

Contact your STIHL dealer for minformation on these and other saccessories.

ement: 72.2 cm3

52 mm34 mm

2)

power 7293 3.6–3.9 kW

(4.9–5.3 bhp) N3)

power 7293 3.3 kW

(4.5 bhp)ed 2,500 rpmrmissible

speed with bar in 12,500 rpm

pressure level ISO 7182

1) 102 dB (A) power level ISO 9207 1) 113 dB (A)on rement SO 7505 1)

, left 5.2 m/s2

, right 7.1 m/s2

ifications Special Accessories

47MS 380

English

Pleasenumbethe guidspacesorderin

The guto normWhen pquote tand na

Model

Serial n

Guide b

Chain p

out epair an

can be en L

cement

ified by Hl l (. n small

Orde irs

enter your saw model, serial r as well as the part numbers of e bar and saw chain in the

provided. This will make re-g simpler.

ide bar and saw chain are subject al wear and tear. urchasing these parts, always

he saw model, the part numbers mes of the parts.

umber

ar part number

art number

The user of this unit should carryonly the maintenance operationsdescribed in this manual. Other rwork may be performed only by authorized STIHL dealer.

Warranty claims following repairsaccepted only if the repair has beperformed by an authorized STIHdealer using original STIHL replaparts.

Original STlHL parts can be identthe STIHL part number, the STIlogo and the STlHL parts symboThe symbol may appear alone oparts.

ring Spare Parts Maintenance and Repa

48

English

S 380

AndreaBadstr.71336

certify tbelow

conformDirectiv2000/1

The promanufafollowinEN 608

The mepower lto Directhe ISO measur115 dBguaran116 dB

he

ctured ents of f

y, rvice.

CategoMake:Model:Serial i

Manuof co

000B

A02

6

M

s Stihl AG & Co. KG 115Waiblingen

hat the new machine described

s to the specifications of es 98/37/EC, 89/336/EEC and

4/EC.

duct has been developed and ctured in compliance with the g standards: , EN 61000-6-1, EN 55012

asured and guaranteed sound evel was determined according tive 2000/14/EC, Annex V, using 9207 standard.

ed sound power level: (A) teed sound power level: (A)

Technical documents deposited at: Andreas Stihl AG & Co. KGProduct Licensing

The CE type examination was carried out by

Deutsche Prüfstelle für Land- und Forsttechnik (DPLF)Postfach 41 03 5634114 Kassel

Certification number K-EG-2003/3756

Waiblingen, September 1, 2003

Andreas Stihl AG & Co. KG

SteinhauserDirectorGroup Product ManagementEngineering Services

All STIHL products comply with thighest quality standards.

An independent organization hascertified that all products manufaby STIHL meet the strict requiremthe ISO 9001 standard for qualitymanagement systems in terms oproduct development, materials purchasing, production, assembldocumentation and customer se

ry: ChainsawSTIHLMS 380

dentification 1119

facturer's declaration nformity

Quality Certification