STIHL MS 210, 230, 250 - Instruction Manual - Fire And Saw
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STIHL MS 210, 230, 250 Instruction Manual
English
Contents
Guide to Using this Manual 2 Engine Running Behavior 40 Dear Customer,
Safety Precautions 3 Storing the Machine 41 Thank you for choosing a quality
Reactive Forces 8 Checking and Replacing the Chain engineered STIHL product.
Sprocket 41
Original Instruction Manual
Working Techniques 9 It has been built using modern
Cutting Attachment 18 Maintaining and Sharpening the production techniques and
Saw Chain 42 comprehensive quality assurance.
Mounting the Bar and Chain (side
Maintenance and Care 46 Every effort has been made to ensure
chain tensioner) 18
your satisfaction and trouble-free use of
Mounting the Bar and Chain (front Minimize Wear and Avoid Damage 48
the product.
chain tensioner) 19 Main Parts 49
Please contact your dealer or our sales
Mounting the Bar and Chain (quick Specifications 50
company if you have any queries
chain tensioner) 20 Ordering Spare Parts 52
Printing inks contain vegetable oils, paper can be recycled.
concerning this product.
Tensioning the Saw Chain (side Maintenance and Repairs 52
chain tensioner) 22 Your
Disposal 53
Tensioning the Saw Chain (front
EC Declaration of Conformity 53
chain tensioner) 23
Tensioning the Saw Chain (quick
chain tensioner) 23
Printed on chlorine-free paper
Checking Chain Tension 23 Dr. Nikolas Stihl
Fuel 24
Fueling 25
Chain Lubricant 28
Filling Chain Oil Tank 28
Checking Chain Lubrication 29
Chain Brake 29
Winter Operation 30
Starting / Stopping the Engine 31
Operating Instructions 35
© ANDREAS STIHL AG & Co. KG, 2019
Taking Care of the Guide Bar 36
Air Filter System 37
0458-208-0121-A. VA4.H19.
Cleaning the Air Filter 37
0000000334_027_GB
Adjusting the Carburetor 38
Spark Plug 39
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 1English
Intake air baffle: winter Engineering improvements
Guide to Using this Manual operation
STIHL's philosophy is to continually
This Instruction Manual refers to a improve all of its products. For this
Intake air baffle: summer
STIHL chain saw, also called a machine reason we may modify the design,
operation
in this Instruction Manual. engineering and appearance of our
products periodically.
Pictograms Handle heating Therefore, some changes, modifications
and improvements may not be covered
Pictograms that appear on the machine in this manual.
are explained in this Instruction Manual.
Actuate decompression
Depending on the machine and valve
equipment version, the following
pictograms may appear on the machine.
Fuel tank; fuel mixture of Actuate manual fuel
gasoline and engine oil pump
Tank for chain oil; chain
oil
Symbols in text
Engage and release
chain brake
WARNING
Warning where there is a risk of an
Coasting brake accident or personal injury or serious
damage to property.
Direction of chain travel NOTICE
Caution where there is a risk of
damaging the machine or its individual
components.
Ematic; chain oil flow
adjustment
Tension saw chain
2 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Do not lend or rent your chain saw Clothing and Equipment
Safety Precautions without the instruction manual. Be sure
that anyone using it understands the
information contained in this manual. Wear proper protective clothing and
Special safety precau- equipment.
tions must be observed to To operate a chain saw you must be
reduce the risk of per- rested, in good physical condition and Clothing must be sturdy
sonal injury when mental health. If you have any condition and snug-fitting, but allow
working with a chain saw that might be aggravated by strenuous complete freedom of
because of the very high work, check with your doctor before movement. Wear snug
chain speed and very operating a chain saw. fitting clothing with cut-
sharp cutters. retardant pads – no
Do not operate the chain saw if you are loose-fitting jacket.
It is important that you under the influence of any substance
(drugs, alcohol) which might impair Avoid clothing that could get caught on
read the instruction man-
vision, dexterity or judgment. branches, brush or moving parts of the
ual before first use and
machine. Do not wear a scarf, necktie or
keep it in a safe place for To reduce the risk of accidents or injury, jewellery. Tie up and confine long hair
future reference. Non- put off the work in poor weather (headscarf, cap, hard hat, etc.).
observance of the conditions (rain, snow, ice, wind).
instruction manual may Wear suitable safety
result in serious or even Persons with pacemakers only: The shoes – with cut-retard-
fatal injury. ignition system of your chain saw ant material, non-slip
produces an electromagnetic field of a soles and steel toe caps.
General very low intensity. This field may
interfere with some pacemakers. To
reduce health risks, STIHL recommends
Observe all applicable local safety that persons with pacemakers consult WARNING
regulations, standards and ordinances. their physician and the pacemaker To reduce the risk of eye
The use of noise emitting power tools manufacturer before operating this injuries, wear tight-fitting
may be restricted to certain times by power tool. safety goggles conform-
national or local regulations. ing to standard EN 166 or
Intended use a face shield. Make sure
If you have not used this model before:
that the safety goggles
Have your dealer or other experienced
The machine may only be used to saw and the face shield fit
user show you how to operate your
wood and wooden objects. correctly.
machine or attend a special course in its
operation. Do not use the machine for any other Wear "personal" hearing protection – for
Minors should never be allowed to use a purpose – risk of accidents! example, ear defenders.
chain saw. Do not modify the machine in any way – Wear a hard hat wherever there is any
Keep bystanders, especially children, this may increase the risk of personal risk of falling objects.
and animals away from the work area. injury. STIHL excludes all liability for
personal injury and damage to property
The user is responsible for avoiding
caused while using unauthorised
injury to third parties or damage to their
attachments.
property.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 3English
Wear sturdy protective Clean the dust and dirt off the machine – Open the fuel filler cap carefully so that
gloves made of a resist- do not use any grease solvents for this any excess pressure is relieved
ant material (e.g. purpose. gradually and fuel does not splash out.
leather). Clean the ventilation slots if necessary. The machine may only be refuelled in a
well ventilated place. Clean the machine
Do not use a high-pressure cleaner to
STIHL can supply a comprehensive immediately if fuel is spilled. Do not spill
clean the machine. The hard jet of water
range of personal protective equipment. fuel over your clothing – contaminated
can damage parts of the machine.
clothing must be changed immediately.
Transport Accessories The machines can be equipped with the
following filler caps as standard:
Before any transport – even over short Only use those tools, guide bars, chains, Cliplock filler cap (bayonet-type)
distances – switch off the machine, chain sprockets, accessories or
engage the chain brake and attach the Place the cliplock filler
technically equivalent components that cap (bayonet-type) in
chain scabbard. This avoids the risk of have been approved by STIHL for this
the saw chain starting unintentionally. position, turn as far as
machine. If you have any questions in stop and fold the cliplock
this respect, consult a servicing dealer. down.
Use only high quality tools and
accessories. Otherwise, there may be a This helps reduce the risk of unit
risk of accidents and damage to the vibrations causing an incorrectly
machine. tightened filler cap to loosen or come off
and spill quantities of fuel.
STIHL recommends the use of genuine
001BA115 KN
STIHL tools, guide bars, chains, chain Look out for leaks! Never
sprockets and accessories. They are start the engine if fuel has
specifically designed to match your been spilled or is leaking
Always carry the chain saw by the model and meet your performance – Fatal burns may result!
handle – with the hot muffler away from requirements.
your body, the guide bar must point to
the rear. Avoid touching hot parts of the Refuelling Before Starting Work
machine, especially the surface of the
muffler – risk of burns!
Gasoline is an extremely Check that your saw is properly
In vehicles: Properly secure the machine flammable fuel – keep assembled and in good condition – refer
to prevent tipping, damage and chain oil clear of naked flames and to appropriate chapters in the instruction
or fuel spillage. fire – do not spill any fuel manual.
– no smoking. – Check the fuel system for leaks,
Cleaning paying special attention to visible
Switch off the engine before refuelling.
parts such as the tank cap, hose
Never refuel the machine while the connections and the manual fuel
Clean plastic parts with a cloth. Harsh engine is still hot – the fuel may spill over
detergents can damage the plastic. pump (on machines so equipped). If
– risk of fire!
4 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
there are any leaks or damage, do Your chain saw is a one-person saw. Do Never let the machine run unattended.
not start the engine – risk of fire. not allow other persons to be in the
Exercise caution with slippery surfaces,
Have your saw repaired by a working area – not even while starting.
water, snow, ice, steep slopes, uneven
servicing dealer before using it
Do not start the chain saw if the chain is ground or green wood that has just been
again.
in a cut. stripped of its bark – danger of slipping!
– Check operation of chain brake,
Move at least 3 meters away from the Use caution with tree stumps, roots,
front hand guard
place where the machine was refuelled ditches – danger of stumbling!
– Correctly mounted guide bar and never start the motor in enclosed
Do not work alone – keep within calling
spaces.
– Correctly tensioned chain distance of others who are trained in
Lock the chain with the chain brake emergency procedures and can provide
– The trigger and trigger lockout must
before starting – risk of injury due to help in an emergency. Helpers at the
move freely and spring back to the
rotating chain! cutting site must also wear protective
idle position when they are
clothing (helmet!) and stand well clear of
released. Do not drop-start the engine – start as
the branches being cut.
described in the Instruction Manual.
– Master Control lever must move
More care and attention than usual are
easily to STOP, 0 or †
During operation required when wearing ear protection,
– Check that the spark plug boot is as warning sounds (shouts, beeps, etc.)
secure – a loose boot may cause cannot be heard properly.
arcing that could ignite combustible Ensure you always have a firm and safe
footing. Take special care when the bark Take a break in good time to avoid
fumes and cause a fire.
is wet – danger of slipping! tiredness or exhaustion – risk of
– Never attempt to modify the controls accidents!
or safety devices in any way.
Dust (e. g., sawdust), fumes and smoke
– Keep the handles dry and clean – produced while using the machine may
free from oil and dirt – for safe be hazardous to health. If dust is
control of the saw. generated, wear a dust mask.
– Make sure there is sufficient fuel When the engine is running: Note that
001BA087 LÄ
and chain oil in the tanks. the saw chain continues to rotate for a
To reduce the risk of personal injury, do short period after you let go of the
not operate your saw if it is damaged or throttle trigger – coasting effect.
not properly assembled. Always hold the chain saw firmly with No smoking when working with or near
both hands: Right hand on the rear the chain saw - risk of fire! Combustible
Starting the chain saw handle – even if you are left-handed. To fuel vapour may escape from the fuel
ensure reliable control, wrap your system.
thumbs tightly around the handlebar and
Always work on a level surface. Ensure handle.
a firm and secure footing. Hold the
machine securely – the chain must not In the event of impending danger or in
touch any objects or the floor – danger of an emergency, switch off the engine
injury due to the rotating saw chain. immediately by moving the Master
Control lever / stop switch to STOP, 0 or
†.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 5English
Examine the saw chain periodically at a machine that is not in perfect working Storage
short intervals and as soon as you note order. In case of doubt, have the unit
any tangible changes: checked by your servicing dealer.
When the machine is not in use, it
– Switch off the engine; wait until the Check for correct idling, so that the saw should be stored in such a way that no-
saw chain is stationary chain stops moving when the throttle one is endangered. Secure the machine
trigger is released. Check the idle setting against unauthorised use.
– Check condition and secure fitting
regularly and correct when possible.
– Check sharpness Have the machine repaired by a STIHL Store the machine in a safe, dry room.
Never touch the saw chain when the servicing dealer if the saw chain still
continues to move during idling. Vibrations
engine is running. If the saw chain
becomes jammed by an object, switch The chain saw produces
off the engine immediately before poisonous exhaust gases Prolonged use of the power tool may
attempting to remove the object – risk of as soon as the engine result in vibration-induced circulation
injury! starts. These gases may problems in the hands (whitefinger
be colourless and odour- disease).
Always turn off the engine before leaving
the machine unattended. less and may contain No general recommendation can be
unburnt hydrocarbons given for the length of usage because it
To change the saw chain, switch off the and benzene. Never work depends on several factors.
engine. Risk of injury from the motor with the machine indoors
starting unintentionally! or in poorly ventilated The period of usage is prolonged by:
Keep easily combustible materials areas, even if your – Hand protection (wearing warm
(e. g., wood chips, bark, dry grass, fuel) machine is equipped with gloves)
away from hot exhaust gases and hot a catalytic converter.
– Work breaks
mufflers – risk of fire! Mufflers with Ensure proper ventilation when working
catalytic converters can become in trenches, hollows or other confined The period of usage is shortened by:
especially hot. locations – risk of fatal injury from – Any personal tendency to suffer
Never work without chain lubrication – breathing toxic fumes! from poor circulation (symptoms:
monitor the oil level in the oil tank. Stop If you feel sick, have a headache, vision frequently cold fingers, tingling
work immediately if the oil level in the oil problems (e. g., your field of vision gets sensations).
tank is too low and top up with chain oil smaller), hearing problems, dizziness or – Low outside temperatures.
– see also "Topping up with chain oil" inability to concentrate, stop work
and "Check chain lubrication". – The force with which the handles
immediately. Such symptoms may be
are held (a tight grip restricts
If the machine is subjected to unusually caused by an excessively high
circulation).
high loads for which it was not designed concentration of exhaust emissions –
(e. g., heavy impact or a fall), always risk of accident! Continual and regular users should
check that it is in good condition before monitor closely the condition of their
continuing work – see also "Before After finishing work hands and fingers. If any of the above
starting work". symptoms appear (e.g. tingling
sensation in fingers), seek medical
Check the fuel system for leaks and Switch off the motor, engage the chain advice.
make sure the safety devices are brake and attach the chain scabbard.
working properly. Never continue using
6 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Maintenance and repairs Check ignition lead (insulation in good servicing dealer – do not use the
condition, secure connection). machine until the malfunction has been
remedied, see "Chain brake".
Always switch off the engine before any Check that the muffler is in perfect
repair, cleaning or maintenance work working condition.
and any work on the chain. Risk of injury Do not use the machine if the muffler is
if the engine starts inadvertently! damaged or missing – risk of fire,
Exception: adjustment of carburettor damage to hearing!
and idle speed. Never touch a hot muffler – risk of burns!
The machine must be serviced regularly. The condition of the anti-vibration
Do not attempt any maintenance or elements influences vibration behaviour
repair work not described in the – inspect anti-vibration elements
Instruction Manual. All other work should periodically.
be carried out by a servicing dealer.
Inspect chain catcher – replace if
STIHL recommends that maintenance damaged.
and repair work be carried out only by
authorised STIHL dealers. STIHL Switch off the engine
dealers receive regular training and are – To check the chain tension
supplied with technical information.
– To retension the chain
Use only high-quality spare parts.
Otherwise, there may be a risk of – To replace the chain
accidents and damage to the machine. If – For remedying malfunctions
you have any questions in this respect,
consult a servicing dealer. Observe sharpening instructions – for
safe and proper handling, always keep
Do not modify the machine in any way – the chain and guide bar in flawless
this may increase the risk of personal condition. Keep the chain properly
injury –risk of accidents! sharpened, tensioned and well
To reduce the risk of fire due to ignition lubricated.
outside the cylinder, move the master Change chain, guide bar and chain
control level to STOP, 0 or † before sprocket in due time.
turning the engine over on the starter
when the spark plug boot is removed or Regularly check that the clutch drum is
the spark plug is unscrewed! in perfect working condition.
Do not service or store the machine near Always store fuel and chain lubricant
a naked flame – risk of fire due to the only in the specified type of containers
fuel. and ensure they are correctly labelled.
Store in a dry, cool and secure place
Check fuel cap regularly for tightness. protected against light and sunlight.
Use only spark plugs that are in perfect In the event of a chain brake
condition and have been approved by malfunction, switch off the machine
STIHL – see "Specifications". immediately – risk of injury! Consult a
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 7English
Kickback occurs if, for example, – Be especially careful with small,
Reactive Forces tough limbs, undergrowth and
offshoots – the saw chain may
The most common reactive forces are: become caught in them
kickback, pushback and pull-in. – Never cut several limbs at once
– Do not lean too far forward
Dangers of kickback
– Do not cut above shoulder height
001BA257 KN
Kickback can result in – Use extreme caution when re-
fatal cuts. entering a previous cut
– Do not attempt plunge cuts if you
– The saw chain in the area of the are not experienced in this cutting
upper quarter of the guide bar nose technique
unintentionally comes into contact
with wood or a solid object – e. g., – Be alert for shifting of the log or
unintentionally touches another limb other forces that may cause the cut
during limbing to close and pinch the chain
– The saw chain at the nose of the – Always cut with a correctly
guide bar is briefly pinched in the cut sharpened, properly tensioned saw
chain – the depth gauge setting
must not be too large
QuickStop chain brake:
– Use low-kickback saw chains as
well as narrow-radius guide bars
This device reduces the risk of injury in
certain situations – it cannot prevent
Pull-in (A)
kickback. If activated, the brake stops
the saw chain within a fraction of a
second –
refer to chapter "Chain brake" in this
Instruction Manual.
001BA036 KN
Reducing the risk of kickback
001BA037 KN
Kickback occurs when the saw is
suddenly thrown up and back in an – Work cautiously and methodically
uncontrolled arc towards the operator. – Hold the chain saw firmly with both
A
hands and maintain a secure grip
When the chain on the bottom of the bar
– Always cut at full throttle – overbucking – is suddenly pinched,
caught or encounters a foreign object in
– Be aware of the location of the guide
the wood, the chain saw may suddenly
bar nose
– Do not cut with the guide bar nose
8 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
be drawn forward toward the log – to Dead wood (brittle, rotten or dead wood)
avoid this, engage the bumper spike poses a significant, highly unpredictable Working Techniques
firmly in the wood. hazard. It is extremely difficult or even
practically impossible to recognise the Sawing and felling work, including all
Pushback (B) danger. Use aids such as winches or related work (plunge cutting, limbing,
draglines. etc.) may only be carried out by persons
When felling close to roads, rail lines, who have been specially trained and
power lines, etc., work with particular instructed. Persons who are not
care. If necessary, notify police, power experienced chain saw users should not
companies or railway authorities. carry out any such work – increased risk
of accidents!
Country-specific legislation on felling
001BA038 KN
technique must be complied with during
B felling work.
When the chain on the top of the bar – Cutting
underbucking – is suddenly pinched,
caught or encounters a foreign object in Do not operate your saw with the
the wood, the chain saw may suddenly starting throttle lock engaged. Engine
be driven straight back toward the speed cannot be controlled with the
operator – to avoid this: throttle trigger in this position.
– Do not allow the top of the guide bar Work calmly and carefully – in daylight
to become jammed conditions and only when visibility is
– Do not twist the guide bar in the cut good. Ensure you do not endanger
others – stay alert at all times.
Be very careful First-time users are advised to practice
cutting logs on a sawhorse – see "When
– With freely hanging limbs cutting small logs".
– With trunks that are under tension Use the shortest possible guide bar: The
between other trees because they chain, guide bar and chain sprocket
fell unfavourably must match each other and your saw.
– When working in windbreaks
In these cases, do not use a chain saw –
use a hoist, winch or dragline instead.
Pull out trunks that are lying about and
have been cut free. Whenever possible,
deal with them in open areas.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 9English
materials, dry plants or scrub. Always Note when reaching the end of a cut that
contact your local forest authority for the saw is no longer supported in the
information on a possible fire risk. kerf. You have to take the full weight of
the machine since it might otherwise go
out of control.
When cutting small logs:
001BA082 KN
– Use a sturdy and stable support –
sawhorse.
Position the saw so that your body is – Never hold the log with your leg or
clear of the cutting attachment. foot.
Always pull the saw out of the cut with – Never allow another person to hold
the chain running. the log or help in any other way.
Use your chain saw for cutting only. It is Limbing:
not designed for prying or shoveling – Use a low kickback chain.
away limbs, roots or other objects.
– Work with the saw supported
Do not underbuck freely hanging limbs. wherever possible.
001BA033 KN
Take care when cutting scrub and young – Do not stand on the log while
trees. The saw chain may catch and limbing it.
throw thin shoots in your direction.
– Do not cut with the bar nose.
To reduce the risk of injury, take special If on a slope, stand on the uphill side of
care when cutting shattered wood the log. Watch out for rolling logs. – Watch for limbs which are under
because of the risk of injury from slivers tension.
being caught and thrown in your When working at heights:
– Never cut several limbs at once.
direction. – Always use a lift bucket
Lying or standing logs under tension:
Make sure your saw does not touch any – Never work on a ladder or in a tree
foreign materials: Stones, nails, etc. may Always make cuts in the correct
be flung off and damage the saw chain. – Never work on an insecure support sequence (first at the compression
The saw may kick back unexpectedly – – Do not work above shoulder height side (1), then at the tension side (2), the
risk of accidents. saw may otherwise pinch or kick back –
– Never operate your power tool with risk of injury.
If the rotating chain makes contact with one hand
a rock or other solid object there is a risk
Begin cutting with the saw at full throttle
of sparking which may cause easily
and engage the spiked bumper firmly in
combustible material to catch fire under
the wood, and then continue cutting.
certain circumstances. Dry plants and
scrub are also easily combustible, Never work without the spiked bumper
especially in hot and dry weather because the saw may pull you forwards
conditions. If there is a risk of fire, do not and off balance. Always engage the
use your chainsaw near combustible spiked bumper securely in the tree or
limb.
10 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Ripping cut:
1
001BA088 LÄ
2
001BA151 KN
1 1/ 2 1
21/2
Maintain a distance of at least 2 1/2 tree
lengths from the next felling site.
2 Determining direction of fall and escape
path
1 Select gap in stand into which you want
001BA152 KN
the tree to fall.
Pay special attention to the following
001BA189 KN
points:
N Make relieving cut at the – The natural lean of the tree
compression side (1)
Cutting technique in which the spiked – Any unusually heavy limb structure,
N Make bucking cut at the tension damage
side (2) bumper is not used – risk of pull-in – start
the cut with the guide bar at the – The wind direction and speed – do
Be wary of pushback when making shallowest possible angle – take extra not fell in high winds
bucking cut from the bottom upwards care since there is an increased danger
(underbuck). of kickback. – Sloping ground
– Neighboring trees
NOTICE Preparations for Felling
– Snow load
Do not cut a lying log at a point where it – Soundness of tree – take special
is touching the ground because the saw Check that there are no other persons in care if trunk is damaged or in case
chain will otherwise be damaged. the felling area – other than helpers. of deadwood (dry, decayed or rotted
Make sure no-one is endangered by the wood)
falling tree – the noise of your engine
may drown any warning calls.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 11English
Preparing work area at base of tree Felling notch
– First clear the tree base and work
B
area from interfering limbs and Preparing felling notch
brush to provide a secure footing.
– Clean lower portion of tree base
(e.g. with an axe) – sand, stones
45° and other foreign objects will dull the
saw chain.
A C
45°
001BA146 KN
001BA040 KN
B
C
– Make the vertical cut first, then the
A Direction of fall
001BA271 KN
horizontal – but only if the wood is
B Escape path (or retreat path) sound
– Establish paths of escape for
everyone concerned – opposite to
The felling notch (C) determines the
direction of fall at about 45°.
direction of fall.
– Remove all obstacles from escape
Important:
paths.
– Make felling notch at a right angle to
– Place all tools and equipment a safe
the planned direction of fall.
distance away from the tree, but not
on the escape paths. – Cut close to the ground.
– Always keep to the side of the falling – Cut to a depth of about 1/5 to 1/3 of
tree and only walk away along the the trunk diameter.
preplanned escape path.
– On steep slopes, plan escape
routes parallel to the slope.
– When walking away along the
escape path, watch out for falling
limbs and watch the top of the tree.
12 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Determine direction of fall with gunning Check direction of fall felling notch to a depth of about 1/10 of
sight on shroud and fan housing trunk diameter. On large diameter trees,
cut to no more than width of guide bar.
Do not make sapwood cuts if wood is
diseased.
Basic information on felling cut
001BA153 KN
001BA153 KN
Stump dimensions
N Position the saw in the horizontal
Your chainsaw has a gunning sight on cut. The gunning sight must point in
the shroud and fan housing. Use this the planned direction of fall – if
gunning sight. necessary, correct direction of fall
by re-cutting the felling notch.
Making Felling Notch C
1/10
Position the saw so that the felling notch Sapwood cuts Ø
is at a right angle to the direction you
want the tree to fall.
The sequence in which the felling notch
is made with a horizontal cut (bottom)
and angled cut (top) is defined in
country-specific regulations.
C E
N Make horizontal cut (bottom)
Make the angled cut (top) at about
001BA259 KN
N G
45°- 60° to the horizontal cut.
The felling notch (C) determines the
direction of fall.
The hinge (D) helps control the falling
tree.
– Width of hinge: about 1/10 of tree
001BA150 KN
diameter.
– To reduce the risk of accidents, do
not cut through the hinge – you
Sapwood cuts in long-fibered softwood could lose control of the direction of
help prevent sapwood splintering when fall.
the tree falls. Make cuts at both sides of
the trunk at same height as bottom of – Leave a broader hinge on rotten
trees.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 13English
The tree is felled with the felling cut (E). 1. Begin cut by applying the lower Contact your STIHL dealer for advice on
portion of the guide bar nose – do selecting the right felling wedge (length,
– Cut horizontally.
not use upper portion because of – width and height).
– 1/10 (at least 3 cm) of tree diameter risk of kickback. Start cutting at full
higher than bottom of felling throttle until depth of kerf is twice the Choosing right felling cut
notch (C). width of the guide bar.
The holding strap (F) or stabilizing 2nd Swing saw slowly into plunge- The criteria for choosing the right felling
strap (G) supports the tree and helps cutting position – take care because cut are the same as those for
prevent it from falling prematurely. of the risk of kickback or pushback. determining the direction of fall and the
– Width of strap: about 1/10 to 1/5 of 3. Make the plunge cut very carefully. escape path.
tree diameter. Danger of pushback. There are many different variations of
– Do not cut into the strap while these characteristics. Only the two most
making the felling cut. common characteristics are described in
this manual:
– Leave a broader strap on rotten
trees.
Plunge cutting
001BA270 KN
– For relieving cuts during bucking
– For wood carving
001BA260 KN
Use the plunge-cutting sight if possible.
The plunge-cutting sight and the top and
bottom of the guide bar are parallel.
When making the plunge cut, the sight Left: Normal tree – vertical trunk
helps keep the hinge horizontal, i.e. the with uniform tree crown.
same thickness all round. To do this, Right: Leaner – tree crown leans in
hold the plunge-cutting sight parallel to direction of fall.
the chord of the felling notch.
Felling wedges Felling Cut with Stabilizing Strap
(Normal Tree)
Make use of wedges as soon as
1. possible, i.e. providing they do not
interfere with cutting. Drive wedge into A) Small diameter trees
3. felling cut with a suitable tool.
Perform this felling cut when the tree
2. Use only aluminum or plastic wedges – diameter is smaller than the length of the
001BA269 KN
never steel. Steel wedges can seriously guide bar.
damage the saw chain and cause
dangerous kickback.
N Use a low kickback chain and Select felling wedges that suit the
exercise particular caution diameter of the tree and width of the kerf
(felling cut (E)).
14 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
1.
2.
3.
1.
2. 3.
4. 5.
001BA261 KN
001BA273 KN
001BA263 KN
Shout a warning before starting the N Insert a felling wedge (3). Shout a warning before starting the
felling cut. felling cut.
Shout a second warning immediately
N Start felling cut (E) using plunge-cut before the tree falls. N Engage the spiked bumper at the
method – insert full length of guide required height of the felling cut and
N Holding the saw with outstretched
bar in the trunk. use it as a pivot – avoid
arms, cut through the stabilizing
repositioning the saw more than
N Engage the spiked bumper behind strap horizontally at the same level
necessary.
the hinge and use it as a pivot – as the felling cut.
avoid repositioning the saw more N The guide bar nose enters the
B) Large diameter trees
than necessary. wood (1) before it reaches the hinge
Perform this felling cut when the tree – hold the saw horizontally and
N Enlarge felling cut as far as
diameter is greater than the length of the swing it as far as possible.
hinge (1).
guide bar.
N Enlarge felling cut as far as
– Do not cut into the hinge.
hinge (2).
N Enlarge felling cut as far as
– Do not cut into the hinge.
stabilizing strap (2).
N Enlarge felling cut as far as
– Do not cut into the stabilizing strap.
stabilizing strap (3).
– Do not cut into the stabilizing strap.
Continue the felling cut on the other side
of the trunk.
Make sure the second cut is at the same
height as the first cut.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 15English
N Start felling cut using plunge-cut Felling Cut with Holding Strap (Leaner)
method.
N Enlarge felling cut as far as A) Small diameter trees
hinge (4).
Perform this felling cut when the tree
– Do not cut into the hinge. diameter is smaller than the length of the
N Enlarge felling cut as far as guide bar.
stabilizing strap (5).
– Do not cut into the stabilizing strap.
1. 2.
001BA266 KN
6. Shout a second warning immediately
before the tree falls.
N Cut through the holding strap at a
downward angle from outside with
001BA265 KN
outstretched arms.
001BA274 KN
N Plunge the guide bar into the trunk
until it emerges at the other side.
N Insert a felling wedge (6). N Enlarge the felling cut (E) in
direction of hinge (1).
Shout a second warning immediately
before the tree falls. – Cut horizontally.
N Holding the saw with outstretched – Do not cut into the hinge.
arms, cut through the stabilizing N Enlarge the felling cut in direction of
strap horizontally at the same level holding strap (2).
as the felling cut.
– Cut horizontally.
– Do not cut into the holding strap.
16 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
B) Large diameter trees Continue the felling cut on the other side N With outstretched arms, cut through
of the trunk. the holding strap at a downward
angle from outside.
Make sure the second cut is at the same
height as the first cut.
1. N Engage the spiked bumper behind
2. 3. the hinge and use it as a pivot –
avoid repositioning the saw more
than necessary.
N The guide bar nose enters the
wood (4) before it reaches the
holding strap – hold the saw
horizontally and swing it as far as
possible.
5. 6. N Enlarge felling cut as far as
4.
hinge (5).
001BA267 KN
– Do not cut into the hinge.
N Enlarge felling cut as far as holding
strap (6).
Perform this felling cut when the tree – Do not cut into the holding strap.
diameter is greater than the length of the
guide bar.
N Engage the spiked bumper behind
the holding strap and use it as a
pivot – avoid repositioning the saw
more than necessary.
N The guide bar nose enters the
wood (1) before it reaches the hinge
– hold the saw horizontally and
swing it as far as possible.
– Do not cut into the holding strap or
hinge.
N Enlarge felling cut as far as
hinge (2).
– Do not cut into the hinge.
001BA268 KN
N Enlarge felling cut as far as holding
strap (3).
– Do not cut into the holding strap. Shout a second warning immediately
before the tree falls.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 17English
Chain Scabbard
Cutting Attachment Mounting the Bar and Chain
(side chain tensioner)
A cutting attachment consists of the saw
chain, guide bar and chain sprocket. Removing the chain sprocket cover
The cutting attachment that comes
standard is designed to exactly match
the chain saw.
001BA244 KN
1
2 Your saw comes standard with a chain
143BA034 KN
scabbard that matches the cutting
001BA248 KN attachment.
a 3 If guide bars of different lengths are
N Unscrew the nuts and take off the
mounted to the saw, always use a chain
chain sprocket cover.
scabbard of the correct length which
– The pitch (t) of the saw chain (1), covers the complete guide bar.
chain sprocket and the nose The length of the matching guide bars is 1
sprocket of the Rollomatic guide bar marked on the side of the chain
must match. scabbard.
– The drive link gauge (2) of the saw
chain (1) must match the groove
2
001BA185 KN
width of the guide bar (3).
If non-matching components are used,
the cutting attachment may be damaged N Turn the screw (1)
beyond repair after a short period of counterclockwise until the tensioner
operation. slide (2) butts against the left end of
the housing slot.
18 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Disengaging the chain brake.
Mounting the Bar and Chain
(front chain tensioner)
3 1 1
Removing the chain sprocket cover
2 4
001BA187 KN
001BA186 KN
N Fit the guide bar over the studs (1) –
the cutting edges on the top of the
bar must point to the right.
N Pull the hand guarad towards the
143BA034 KN
front handle until there is an audible N Engage the peg of the tensioner
click – the chain brake is slide in the locating hole (2) –- place
disengaged. the chain over sprocket (3) at the
same time. N Unscrew the nut and remove the
Fitting the chain N Turn the tensioning chain sprocket cover.
screw (4)clockwise until there is
very little chain sag on the
underside of the bar – and the drive
link tangs are engaged in the bar
groove.
N Refit the sprocket cover and screw
1
207BA009 KN
on the nuts only fingertight.
143BA003 KN
2
N Go to chapter on "Tensioning the
Saw Chain"
N Turn the screw (1)
counterclockwise until the
WARNING tensioning nut (2) butts against the
left end of the housing slot.
Wear work gloves to protect your hands
from the sharp cutters.
N Fit the chain – start at the bar nose.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 19English
Disengage the chain brake.
Mounting the Bar and Chain
(quick chain tensioner)
3 1 1
Removing the chain sprocket cover
2 4
207BA010 KN
001BA186 KN
N Fit the guide bar over the studs (1) –
the cutting edges on the top of the 1
bar must point to the right. 3 2
Pull the hand guard towards the
2310BA013 KN
N
front handle until there is an audible N Engage the peg of the tensioner
click – the chain brake is slide in the locating hole (2) –- place
disengaged. the chain over the sprocket (3) at
the same time. N Swing grip (1) into position (until it
Fitting the chain N Turn the tensioning screw (4) engages)
clockwise until there is very little N Turn the wing nut (2) to the left until
chain sag on the underside of the it hangs loosely in the chain
bar – and the drive link tangs are sprocket cover (3)
engaged in the bar groove.
N Remove chain sprocket cover (3)
N Refit the sprocket cover and screw
on the nut only fingertight. Mounting the tensioning gear
143BA003 KN
N Go to chapter on "Tensioning the
Saw Chain"
WARNING
1
Wear work gloves to protect your hands
2310BA014 KN
from the sharp cutters.
N Fit the chain – start at the bar nose.
N Remove and reverse tensioning
gear (1)
20 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Releasing the chain brake N Fit the saw chain – starting at the
nose of the guide bar – pay attention
2 to the position of the tensioning gear
and the cutting edges
N Turn tensioning gear (1) to the right
as far as possible
2310BA015 KN
N Turn the guide bar so that the
tensioning gear faces the user
001BA186 KN
N Remove screw (2)
1 N Pull hand guard towards the front 3
handle until it engages audibly – 2
chain brake is released
181BA013 KN
3 Fitting the saw chain
2310BA016 KN
N Place the saw chain on the chain
sprocket (2)
N Position tensioning gear (1) and
guide bar (3) relative to one another N Slide the guide bar over the collar
screw (3); the head of the rear collar
screw must protrude into the oblong
hole
2
2310BA017 KN
N Insert and tighten screw (2)
1
181BA012 KN
WARNING
Put on protective gloves – risk of injury
by the sharp cutters.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 21English
N turn the adjusting wheel (4) a little
until the chain sprocket cover can Tensioning the Saw Chain
be slid completely against the (side chain tensioner)
engine housing
N Swing grip (5) into position (until it
engages)
N Fit wing nut and tighten lightly
N Next step: see "Tensioning the Saw 1
133BA024 KN
Chain"
Retensioning during cutting work:
N Shut off the engine.
135BA011 KN
N Loosen the nuts.
N Hold the bar nose up.
N Use a screwdriver to turn the
N Guide the drive link into the bar tensioning screw (1) clockwise until
groove (see arrow) and turn the the chain fits snugly against the
tensioning gear to the left as far as underside of the bar.
possible
N While still holding the bar nose up,
N Fit chain sprocket cover, sliding the tighten down the nuts firmly.
guide lugs into the engine housing
openings N Go to "Checking Chain Tension".
A new chain has to be retensioned more
often than one that has been in use for
4 some time.
5 N Check chain tension frequently –
see chapter on "Operating
Instructions".
2310BA018 KN
When fitting the chain sprocket cover,
the teeth of the adjusting wheel and the
tensioning gear must mesh; if
necessary,
22 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Tensioning the Saw Chain Tensioning the Saw Chain Checking Chain Tension
(front chain tensioner) (quick chain tensioner)
1
2
143BA045 KN
001BA112 KN
143BA007 KN
1
Retensioning during cutting work: Retensioning during cutting work: N Shut off the engine.
N Switch off the engine. N Shut off the engine. N Wear work gloves to protect your
hands.
N Loosen the nuts. N Pull out the hinged clip and loosen
the wingnut. N The chain must fit snugly against
N Hold the bar nose up.
the underside of the bar and it must
N Turn the adjusting wheel (1)
N Use a screwdriver to turn the still be possible to pull the chain
clockwise as far as stop.
tensioning screw (1) clockwise until along the bar by hand.
the chain fits snugly against the N Tighten down the wingnut (2) firmly
N If necessary, retension the chain.
underside of the bar. by hand.
A new chain has to be retensioned more
N While still holding the bar nose up, N Fold down the hinged clip.
often than one that has been in use for
tighten down the nuts firmly.
N Go to "Checking Chain Tension" some time.
N Go to "Checking Chain Tension".
A new chain has to be retensioned more N Check chain tension frequently –
A new chain has to be retensioned more often than one that has been in use for see chapter on "Operating
often than one that has been in use for some time. Instructions".
some time.
N Check chain tension frequently –
N Check chain tension frequently – see chapter on "Operating
see chapter on "Operating Instructions".
Instructions".
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 23English
Gasoline with an ethanol content of Storing Fuel
Fuel more than 10% can cause running
problems in engines with a manually
adjustable carburetor and should not be Store fuel only in approved safety-type
Your engine requires a mixture of fuel canisters in a dry, cool and safe
gasoline and engine oil. used in such engines.
location protected from light and the sun.
Engines equipped with M-Tronic deliver
full power when run on gasoline with an Fuel mix ages – only mix sufficient fuel
WARNING for a few weeks work. Do not store fuel
ethanol content of up to 25% (E25).
For health reasons, avoid direct skin mix for longer than 30 days. Exposure to
contact with gasoline and avoid inhaling Engine Oil light, the sun, low or high temperatures
gasoline vapor. can quickly make the fuel mix unusable.
If you mix the fuel yourself, use only
STIHL two-stroke engine oil or another STIHL MotoMix may be stored for up to
STIHL MotoMix 2 years without any problems.
high-performance engine oil in
accordance with JASO FB, JASO FC, N Thoroughly shake the mixture in the
STIHL recommends the use of STIHL JASO FD, ISO-L-EGB, ISO-L-EGC or canister before fueling your
MotoMix. This ready-to-use fuel mix ISO-L-EGD. machine.
contains no benzol or lead, has a high STIHL specifies STIHL HP Ultra two-
octane rating and ensures that you stroke engine oil or an equivalent high- WARNING
always use the right mix ratio. performance engine oil in order to
Pressure may build up in the canister –
STIHL MotoMix uses STIHL HP Ultra maintain emission limits over the
open it carefully.
two-stroke engine oil for an extra long machine’s service life.
engine life. N Clean the fuel tank and canister
Mix Ratio from time to time.
MotoMix is not available in all markets.
STIHL 50:1 two-stroke engine oil: 50 Dispose of remaining fuel and cleaning
Mixing Fuel parts gasoline to 1 part oil fluid properly in accordance with local
regulations and environmental
Examples requirements.
NOTICE Gasoline STIHL engine oil 50:1
Liters Liters (ml)
Unsuitable fuels or lubricants or mix
ratios other than those specified may 1 0.02 (20)
result in serious damage to the engine. 5 0.10 (100)
Poor quality gasoline or engine oil may 10 0.20 (200)
damage the engine, sealing rings, hoses 15 0.30 (300)
and the fuel tank.
20 0.40 (400)
Gasoline 25 0.50 (500)
Use only high-quality brand-name N Use a canister approved for storing
gasoline with a minimum octane rating fuel. Pour oil into canister first, then
of 90 – leaded or unleaded. add gasoline and mix thoroughly.
24 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Fueling
001BA240 KN
001BA224 KN
Preparing the machine
left: Filler cap - without markings N Remove the filler cap
right: Filler cap - with markings on
Filling with fuel
cap and fuel tank
Take care not to spill fuel while fueling
Filler cap without marking and do not overfill the tank.
STIHL recommends using the STIHL
001BA229 KN
filling system for fuel (special
To open: accessory).
N Fill with fuel
N Before fueling, clean the cap and
the area around it to ensure that no Closing
dirt falls into the fuel tank
N Always position the machine so that
the cap is facing upwards
001BA218 KN
Different markings on filler caps
001BA220 KN
N Open bracket until it is vertical
Filler caps and fuel tanks can be marked
differently.
Depending on the version, filler cap and Bracket is in an upright position:
fuel tank may be available with or
without markings. N Position filler cap – position
markings on the filler cap and the
filler port must be aligned with each
001BA219 KN
other.
N Push the filler cap down as far as it
N Turn the filler cap counterclockwise will go
(approx. 1/4 turn)
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 25English
001BA221 KN
001BA226 KN
001BA225 KN
N Hold the filler cap down and turn it N Grip the filler cap – if the filler cap N Fit filler cap and turn it
clockwise until it engages cannot be moved or removed, then counterclockwise until it engages in
it is closed properly the seat of the filling port
If the filler cap can be moved or removed N Continue to turn the filler cap
counterclockwise (approx. 1/4 turn)
The base of the filler cap is twisted in – this will twist the base of the cap
relation to the upper part. into the correct position
N Turn the filler cap clockwise and
001BA222 KN
close it – see the section "Closing"
and "Checking the lock"
N Fold down the bracket as far as it Filler cap with marking
will go
001BA227 KN
Checking the lock To open:
left: Base of filler cap twisted
right: Base of filler cap correctly
positioned
001BA223 KN
001BA236 KN
– The lug on the bracket must engage N Open bracket
entirely in the recess (arrow)
26 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Closing
001BA232 KN
001BA235 KN
001BA234 KN
N Turn filler cap (approx. 1/4 turn) N Close bracket lock
Bracket is in an upright position:
N Position filler cap – markings on filler
cap and fuel tank must align
N Push the filler cap down as far as it
will go
001BA234 KN
001BA241 KN
Markings on filler cap and fuel tank must Filler cap is locked
align
If the filler cap will not lock onto the fuel
001BA233 KN
tank
The base of the filler cap is twisted in
relation to the upper part.
N Hold the filler cap down and turn it
N Remove the filler cap from the fuel
clockwise until it engages
tank and look at it from above
001BA237 KN
N Remove the filler cap
Filling with fuel
001BA231 KN
Take care not to spill fuel while fueling
and do not overfill the tank.
STIHL recommends using the STIHL
filling system for fuel (special Then the markings on filler cap and fuel
accessory). tank will align
N Fill with fuel
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 27English
Chain Lubricant Filling Chain Oil Tank
For automatic and reliable lubrication of
1 the chain and guide bar – use only an
environmentally compatible quality
001BA238 KN
chain and bar lubricant. Rapidly
biodegradable STIHL BioPlus is
Preparations
recommended.
left: Base of filler cap is twisted –
interior marking (1) is aligned NOTICE
with the exterior marking
Biological chain oil must be resistant to
right: Base of filler cap is in the cor-
aging (e.g. STIHL BioPlus), since it will
rect position – interior
otherwise quickly turn to resin. This
marking is below the bracket.
results in hard deposits that are difficult
It does not align with the
001BA158 KN
to remove, especially in the area of the
exterior marking
chain drive and chain. It may even cause
the oil pump to seize.
The service life of the chain and guide N Thoroughly clean the oil filler cap
bar depends on the quality of the and the area around it to ensure that
lubricant. It is therefore essential to use no dirt falls into the tank.
only a specially formulated chain
N Position the machine so that the
lubricant.
001BA239 KN
filler cap is facing up.
WARNING N Open the filler cap.
N Fit filler cap and turn it Do not use waste oil. Renewed contact Fill up with chain oil.
counterclockwise until it engages in with waste oil can cause skin cancer.
the seat of the filling port Moreover, waste oil is environmentally
harmful. N Refill the chain oil tank every time
N Continue to turn the filler cap you refuel.
counterclockwise (approx. 1/4 turn)
– this will twist the base of the cap NOTICE Take care not to spill chain oil while
into the correct position refilling and do not overfill the tank.
Waste oil does not have the necessary
N Turn the filler cap clockwise and lubricating properties and is unsuitable STIHL recommends you use the STIHL
close it – see section "Closing" for chain lubrication. filler nozzle for chain oil (special
accessory).
N Close the filler cap.
There must still be a small amount of oil
in the oil tank when the fuel tank is
empty.
28 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
If the oil level in the tank does not go
down, the reason may be a fault in the oil Checking Chain Lubrication Chain Brake
supply system: Check chain lubrication,
clean the oilways, contact your dealer
for assistance if necessary STIHL
recommends that you have servicing
and repair work carried out exclusively
by an authorized STIHL servicing
dealer. Locking the chain
143BA024 KN
The saw chain must always throw off a
small amount of oil.
143BA011 KN
NOTICE
Never operate your saw without chain
lubrication. If the chain runs dry, the
whole cutting attachment will be – in an emergency
irretrievably damaged within a very short
– when starting
time. Always check chain lubrication and
the oil level in the tank before starting – at idling speed
work.
The chain brake is activated by pushing
Every new chain has to be broken in for the hand guard toward the bar nose with
about 2 to 3 minutes. your left hand – or by inertia in certain
kickback situations: The chain is
After breaking in the chain, check chain
stopped and locked.
tension and adjust if necessary – see
"Checking Chain Tension".
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 29English
Releasing the chain brake The chain brake will operate only if the
hand guard has not been modified in any Winter Operation
way.
Check operation of the chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push At temperatures below +10°C
hand guard toward bar nose) and open
the throttle wide for no more than
3 seconds – the chain must not rotate.
The hand guard must be free from dirt
and move freely.
Chain brake maintenance
208BA005 KN
The chain brake is subject to normal
143BA012 KN
wear. It is necessary to have it serviced
and maintained regularly by trained
N Press down the throttle trigger
personnel. STIHL recommends that you lockout and move the Master
have servicing and repair work carried
N Pull the hand guard back toward the Control lever to choke closed l.
out exclusively by an authorized STIHL
front handle, servicing dealer. Maintain the following N Turn the knob above the rear handle
servicing intervals: 90° counterclockwise.
NOTICE N Lift off the carburetor box cover
Full-time usage: every 3
Always disengage chain brake before months vertically.
accelerating the engine (except when Part-time usage: every 6
checking its operation) and before months
starting cutting work.
Occasional usage: every 12
High revs with the chain brake engaged months
(chain locked) will quickly damage the
powerhead and chain drive (clutch,
chain brake).
The chain brake is also activated by the
inertia of the front hand guard if the
kickback force of the saw is high
enough: The hand guard is accelerated
toward the bar nose – even if your left
hand is not behind the hand guard, e.g.
during felling cut.
30 MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 CEnglish
Setting the Master Control Lever
Starting / Stopping the
Engine
To move the Master Control lever from
the normal run position (F) to choke
Positions of Master Control Lever
closed (l), press down the throttle
trigger lockout and squeeze the throttle
trigger at the same time and hold them in
that position – now set the Master
Control lever.
STOP To select the starting throttle
position (n), move the Master Control
lever to choke closed (l) first, then
135BA029 LÄ
0 push it into the starting throttle
position (n).
The Master Control lever must be in the
choke closed position (l) for the
changeover to the starting throttle
position (n).
N Lift out the shutter (in front of spark The Master Control lever moves from
plug) vertically. the starting throttle position (n) to the
N Turn the shutter 180°. run position (F) when you press down
001BA140 KN
the throttle trigger lockout and blip the
N Refit the shutter.
throttle trigger at the same time.
N Refit the carburetor box cover and
To switch off the engine, move the
secure it with the knob. Stop 0 – engine off – the ignition is Master Control lever to Stop (0).
Heated air is now drawn in from around switched off
the cylinder to warm the carburetor – this Normal run position (F) – engine runs or Choke shutter closed (l)
helps prevent carburetor icing. can fire. – if the engine is cold
Starting throttle (n) – this position is – If the engine stalls when you open
NOTICE used to start a warm engine. The Master the throttle after starting.
Control lever moves to the normal run
At temperatures above + 20°C, always – If the fuel tank was run until empty
position as soon as the throttle trigger is
close the shutter again. This is (engine stopped).
squeezed.
necessary to avoid engine running
problems and overheating. Choke shutter closed (l) – this position Starting throttle position (n)
is used to start a cold engine.
– If the engine is warm, i.e. if it has
been running for about one minute.
– After engine begins to fire,
– after clearing a flooded combustion
chamber.
MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C 31You can also read
