Stihl KombiTool HT-KM 4182 User manual

STIHL HT-KM Instruction Manual

Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2021 0458-473-0121-C. VA0.A21. 0000009177_002_GB
HT-KM
English
1
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
Contents
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
It has been built using modern
production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and trouble-free use of
the product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
KombiSystem 2
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 2
Using the Unit 6
Approved KombiEngines 8
Assembling the Unit 9
Mounting the KombiTool 10
Cutting Attachment 10
Mounting the Bar and Chain 11
Tensioning the Chain 12
Checking Chain Tension 12
Chain Lubricant 12
Filling Chain Oil Tank 13
Checking Chain Lubrication 15
Fitting the Harness 15
Starting / Stopping the Engine 16
Operating Instructions 17
Taking Care of the Guide Bar 17
Storing the Machine 18
Checking and Replacing the Chain
Sprocket 18
Maintaining and Sharpening the
Saw Chain 19
Maintenance and Care 23
Minimize Wear and Avoid Damage 24
Main Parts 25
Specifications 26
Maintenance and Repairs 27
Disposal 27
EC Declaration of Conformity 27

HT-KM
English
2
In the STIHL KombiSystem a number of
different KombiEngines and KombiTools
can be combined to produce a power
tool. In this instruction manual the
functional unit formed by the
KombiEngine and KombiTool is referred
to as the power tool.
Therefore, the separate instruction
manuals for the KombiEngine and
KombiTool should be used together for
the power tool.
Always read and and make sure you
understand both instruction manuals
before using your power tool for the first
time and keep them in a safe place for
future reference.
Pictograms
All the pictograms attached to the
machine are shown and explained in this
manual.
Symbols in text
WARNING
Warning where there is a risk of an
accident or personal injury or serious
damage to property.
NOTICE
Caution where there is a risk of
damaging the machine or its individual
components.
Engineering improvements
STIHL's philosophy is to continually
improve all of its products. For this
reason we may modify the design,
engineering and appearance of our
products periodically.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
The machine should only be provided or
loaned to people familiar with this model
and its operation. The KombiEngine and
KombiTool user manuals should always
be handed over with the machine.
Use your pole pruner for limbing only
(removing or pruning branches). Saw
wood and wooden objects only.
The machine must not be used for any
other purposes – risk of accidents!
Only use guide bars, saw chains, chain
sprockets and accessories that are
explicitly approved for this power tool
model by STIHL or are technically
identical. If you have any questions in
this respect, consult your dealer.
Use only high quality parts and
accessories. in order to avoid the risk of
accidents and damage to the machine.
KombiSystem Guide to Using this Manual Safety Precautions and
Working Techniques
Special safety precau-
tions must be observed
when working with the
pole pruner because it
operates at a very high
chain speed, has very
sharp cutters and a long
reach.
Both user manuals (Kom-
biEngine and KombiTool)
must be read through
attentively before using
the unit for the first time
and kept in a safe place
for future reference. Non-
compliance with the user
manuals may cause seri-
ous or even fatal injury.

HT-KM
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3
STIHL recommends the use of STIHL
original tools, guide bars, saw chains,
chain sprockets and accessories. They
are specifically designed to match the
product and meet your performance
requirements.
Never attempt to modify your power tool
in any way since this may increase the
risk of personal injury. STIHL excludes
all liability for personal injury and
damage to property caused while using
unauthorized attachments.
Do not use a high-pressure washer to
clean the power tool. The solid jet of
water may damage parts of the unit.
Clothing and equipment
Wear proper protective clothing and
equipment.
Do not wear clothing which could
become trapped in wood, brush or
moving parts of the machine. Do not
wear a scarf, necktie or jewelry. Tie up
and confine long hair above your
shoulders.
WARNING
Wear "personal" sound protection, e.g.
ear defenders.
Wear a safety hard hat where there is a
danger of head injuries from falling
objects.
STIHL can supply a comprehensive
range of personal protective equipment.
Transporting the machine
Always stop the engine.
Always fit the chain scabbard – even
when you carry the power tool for short
distances.
Ensure that the power tool is always well
balanced and hold it by the shaft for
carrying.
Do not touch hot parts of the machine -
risk of burn injury!
By vehicle: When transporting in a
vehicle, properly secure your machine to
prevent turnover, damage and fuel
spillage.
Before starting
Check that your power tool is properly
assembled and in good condition – refer
to appropriate chapters in the
KombiEngine and KombiTool user
manuals.
–Correctly mounted guide bar
–Correctly tensioned saw chain
–Never attempt to modify the controls
or safety devices
–Keep the handles dry and clean –
free from oil and dirt – this is
important for safe control of the
machine
–Adjust carrying harness and
handles in accordance with body
height. Observe the chapter "Fitting
the Harness"
To reduce the risk of personal injury, do
not operate your power tool if it is
damaged or not properly assembled!
To prepare for emergencies when using
a harness: Practice setting down the
machine quickly. To avoid damage, do
not throw the machine to the ground
when practicing.
Clothing must be sturdy
but allow complete free-
dom of movement. Wear
snug-fitting clothing, e.g.
an overall and jacket
combination, do not wear
a work coat.
Wear cut protection
safety boots with non-slip
soles and steel toe caps.
To reduce the risk of eye
injuries, wear close-fit-
ting safety glasses in
accordance with Euro-
pean Standard EN 166.
Make sure the safety
glasses are a snug fit.
Wear sturdy protective
gloves made of a resist-
ant material (e. g.
leather).
002BA254 KN

HT-KM
English
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See also notes on "Before Starting" in
the user manual of the KombiEngine you
are using.
Holding and guiding the machine
Make sure you always have good
balance and secure footing.
Always hold your power tool firmly with
both hands:
Right hand on control handle, left hand
on the loop handle or handle hose, even
if you are left-handed. Wrap your fingers
and thumbs around the handles.
With the KM 94 R KombiEngine, always
use the handle hose of the KombiTool
as the left handle.
While working
In the event of impending danger or in
an emergency, switch off the engine
immediately by moving the slide control
/ stop switch/button to 0or STOP.
Do not allow other persons within a
radius of 15 m of your own position due
to falling branches and ejected wood
particles – Risk of injury! This distance
must also be maintained in relation to
objects (vehicles, window panes) – risk
of property damage!
Keep the bar nose at least 15 m away
from electric power lines . Electric
current may also arc over from high-
voltage cables at greater distance. Have
the power switched off before starting
work in the immediate vicinity of power
lines.
Ensure that the engine idling speed is
correct. The saw chain must not move
when the throttle trigger has been
released.
Check and correct the idle speed setting
at regular intervals. If the saw chain still
rotates, have your dealer check your
machine and make proper adjustments
or repairs – see the user manual of the
KombiEngine.
Take special care in slippery, wet
conditions, in snow and on slopes,
uneven ground, etc. – Risk of slipping!
Watch out for obstacles: tree stumps,
roots – risk of tripping or stumbling!
Make sure you always have good
balance and secure footing.
When working at heights:
–Always use a lift bucket
–Never use the machine while
standing on a ladder or in a tree
–Never work on an insecure support
–Never use the machine with just one
hand
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
Take breaks when you start getting tired
or feeling fatigue – risk of accidents!
473BA007 KN
This power tool is not
insulated. Keep at least
15 m away from electric
power lines – Danger of
fatal electric shock!
15m (50ft)
15m (50ft)
The gear head becomes
hot during operation. To
reduce the risk of burn
injury, do not touch the
gear housing!

HT-KM
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Work calmly and carefully – in daylight
conditions and only when visibility is
good. Proceed with caution, do not put
others in danger.
Dust (e. g., sawdust), fumes and smoke
produced while using the machine may
be hazardous to health. If dust levels are
high, wear a suitable respirator.
Do not touch the saw chain while the
engine is running. If the saw chain
becomes jammed by an obstruction,
switch off the engine immediately before
attempting to remove the obstruction –
risk of injury.
Opening the throttle while the saw chain
is blocked increases the load and
reduces engine speed. The clutch then
slips continuously and this causes
overheating and damage to important
components (e.g. clutch, polymer
housing components) – and this can
increase the risk of injury from the saw
chain moving while the engine is idling.
If your power tool is subjected to
unusually high loads for which it was not
designed (e.g. heavy impact or a fall),
always check that it is in good condition
before continuing work – see also
"Before Starting". Make sure the safety
devices are working properly. Never use
a power tool that is no longer safe to
operate. In case of doubt, contact a
dealer.
To reduce the risk of injury, switch off the
engine before changing the saw chain.
If you use a harness, ensure that the
exhaust gas flow is diverted away from
your body – Risk of fire!
Limbing
Hold the power tool at an angle. Do not
stand directly underneath the limb being
cut. Do not exceed an angle of 60° from
the horizontal. Watch for falling wood.
Keep the work area clear – remove
interfering limbs and brush.
Before sawing branches, establish an
escape route and remove all obstacles.
When performing the separating cut,
position the bar against the branch near
the hook. This will prevent the power tool
from making jolting movements when
you start the separating cut.
Start the cut with the saw chain at full
throttle.
Always cut with a correctly sharpened,
properly tensioned saw chain – the
depth gauge setting must not be too
large.
Perform cross-cut from the top
downward to avoid the chain pinching in
the cut.
If branch is thick or heavy, make a
relieving cut – see chapter on "Using the
Pole Pruner".
Exercise extreme caution when sawing
branches under tension – Risk of injury!
Always make a relieving cut on the
compression side first and then perform
the bucking cut at the tension side.
Be careful when cutting splintered wood
– Risk of injury from ejected pieces of
wood!
If working on a slope, always stand uphill
or to the side of the branch which is to be
sawn. Watch out for rolling branches.
max
473BA008 KN
0000003462_002

HT-KM
English
6
Note when reaching the end of a cut that
the power tool is no longer supported by
the guide bar in the cut. The user must
bear the weight of the machine – risk of
loss of control!
Always pull the power tool out of the cut
with the saw chain running.
Use the power tool for limbing and
pruning only, not for felling – Risk of
accidents!
Keep the saw chain away from any
foreign objects: Stones, nails, etc. may
be ejected and damage the saw chain.
If a rotating saw chain hits a stone or
another hard object, sparks may be
generated which may ignite easily
flammable materials under certain
conditions. Also dried-out plants and
brushwood are combustible, above all in
hot and dry weather. If there is a risk of
fire, do not use your pole pruner near
easily flammable materials, dry plants or
scrub. It is mandatory that you ask the
responsible forestry office about the
current fire hazard.
Maintenance and Repairs
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in the KombiTool and
KombiEngine instruction manuals. Have
all other work performed by a servicing
dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
Only use high-quality replacement parts
in order to avoid the risk of accidents
and damage to the machine. If you have
any questions in this respect, consult a
servicing dealer.
STIHL recommends the use of genuine
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury,always shut
off the enginebefore carrying out any
maintenance or repairs or cleaning the
machine. – Exception: Carburetor and
idle speed adjustments.
Stopping the engine
–before checking chain tension.
–before retensioning the chain.
–before replacing the chain.
–before rectifying problems.
Observe sharpening instructions – keep
the chain and guide bar in good
condition at all times for safe and correct
handling of the saw. The chain must be
properly sharpened, tensioned and well
lubricated.
Always change the chain, guide bar and
sprocket in good time.
Store chain lubricant in properly
labelled, safety-type canisters only.
Preparation
NWear suitable protective clothing,
observe safety precautions.
NStarting the engine
NFitting the harness
Cutting sequence
To allow branches to free fall, always cut
the lower branches first. Prune heavy
branches (large diameter) in several
controllable pieces.
WARNING
Never stand directly underneath the
branch you are cutting – be wary of
falling branches. Note that a branch may
spring back at you after it hits the ground
– risk of injury
Disposal
Do not throw cuttings into the garbage
can – they can be composted.
Working techniques
Hold the control handle with your right
hand, and the loop handle with your left
hand. Your left arm should be extended
to the most comfortable position.
Using the Unit

HT-KM
English
7
The shaft should always be held at an
angle of 60° or less.
The least tiring working position is a tool
angle of 60°.
Any lesser angle may be used to suit the
situation.
Cross-cut
To avoid pinching the bar in the cut,
position the cutting attachment with the
hook against the branch and then
perform the cross-cut from the top
downwards.
Relieving cut
To avoid tearing the bark on thick
branches, always start by performing a
Nrelieving cut (1) on the underside of
the branch. To do this, position the
cutting attachment and guide it
down to the bar nose in an arc.
NPerform the cross-cut (2) – position
the bar with the hook against the
branch and then perform the cross-
cut
Flush-cutting thick branches
If the branch diameter is more than
10 cm (4 in), first
Nperform the undercut (3) and then
cross-cut at a distance of about
20 cm/8 in (A) from the final cut.
Then carry out the flush-cut (4),
starting with a relieving cut and
finishing with a cross-cut
402BA012 KN
0000003462_002
2
1
0000003451_002
3
4
A
390BA024 KN

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English
8
Cutting above obstacles
The machine's long reach makes it
possible to prune branches that are
overhanging obstacles, such as rivers or
lakes. The tool angle in this case
depends on the position of the branch.
Cutting from a lift bucket
The machine's long reach enables
cutting to be performed next to the trunk
without the risk of the lift bucket
damaging other branches. The tool
angle in this case depends on the
position of the branch.
30° angle drive (special accessory)
The angle drive keeps the cutting
attachment at an angle of 30° to the
shaft.
The angle drive may be adjusted on the
shaft to the following positions only:
1for cross-cutting vertical branches
and bushes
2for a better view of the cutting
attachment
KombiEngines
Only use KombiEngines supplied or
explicitly approved by STIHL for use with
the attachment.
This KombiTool may be operated only in
combination with the following
KombiEngines:
STIHL KM 56 R, KM 85 R KM 94 R,
KM 111 R, KM 131 R, KMA 130 R
WARNING
Loop-handled machines must be
equipped with a barrier bar.
Brushcutters with split boom
The KombiTool can also be fitted to
STIHL brushcutters with a split shaft (T-
models) (basic power tools).
This KombiTool can therefore also be
used on the following machine:
STIHL FR 131 T
WARNING
Refer to the user manual of the power
tool for use of the barrier bar.
402BA013 KN
402BA032 KN
1
2
0000097201_001
Approved KombiEngines

HT-KM
English
9
NPull the protective caps off the ends
of the shaft and keep them in a safe
place for later use – see "Storing the
Machine"
NOTICE
The plug may come out of the drive tube
when you pull off the cap. Push it back
into the shaft as far as it will go.
Mounting the gearbox
NApply a mark to the shaft at distance
(A) of 50 mm (2 in.)
NPush the gearbox (1) onto the
shaft (2) as far as stop – turn the
gearbox back and forth until the
square end of the shaft engages
The gearbox is correctly positioned
when the end of its housing reaches or
covers the mark (arrow).
NInsert the clamp screws (3) as far as
it will go
NLine up the gearbox (1) so that the
chain sprocket cover is exactly
vertical and the lug (arrow) on the
end of the drive tube faces up
NTighten down the clamp screws (3)
in the following sequence:
–tighten the left screw moderately
–tighten the right screw moderately
–tighten down the left screw firmly
–tighten down the right screw firmly
Assembling the Unit
413BA014 KN
002BA248 KN
A
402BA002 KN
0000097202_001
12
0000097203_001
1
3
3
1
0000097204_001

HT-KM
English
10
NPush the lug (1) on the drive tube
into the slot (2) in the coupling
sleeve as far as stop.
When correctly installed, the red line (3)
(arrow point) must be flush with the end
of the coupling sleeve.
NTighten down the star knob (4)
firmly.
Removing the KombiTool
NReverse the above sequence to
remove the drive tube.
A cutting attachment consists of the saw
chain, guide bar and chain sprocket.
The cutting attachment that comes
standard is designed to exactly match
the pole pruner.
–The pitch (t) of the saw chain (1),
chain sprocket and the nose
sprocket of the Rollomatic guide bar
must match.
–The drive link gauge (2) of the saw
chain (1) must match the groove
width of the guide bar (3).
If non-matching components are used,
the cutting attachment may be damaged
beyond repair after a short period of
operation.
Chain Scabbard
The scope of supply includes a bar
scabbard that matches the cutting
attachment.
If guide bars of different lengths are
mounted to the pole pruner, always use
a chain scabbard of the correct length
which covers the complete guide bar.
The length of the matching guide bars is
marked on the side of the chain
scabbard.
Mounting the KombiTool
1
002BA326 KN
2
3
002BA327 KN
4
Cutting Attachment
001BA248 KN
1
2
3
a
001BA244 KN

HT-KM
English
11
Removing the chain sprocket cover
NUnscrew the nut and remove the
cover
NTurn the screw (1)
counterclockwise until the tensioner
slide (2) butts against the left end of
the housing slot, then back it off 5
full turns
Fitting the saw chain
WARNING
Wear work gloves to protect your hands
from the sharp cutters.
NFit the saw chain – start at the bar
nose
NFit the guide bar over the screw (3)
and engage peg of tensioner slide in
the hole (4) – place the saw chain
over the chain sprocket (5) at the
same time
NTurn the tensioning screw (1)
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
NRefit the cover and screw on the nut
finger-tight
NGo to chapter on "Tensioning the
Saw Chain"
Mounting the Bar and Chain
0000003452_002
2
1
0000097194_001
390BA003 KN
1
5
390BA044 KN
43

HT-KM
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Re-tensioning during cutting work:
NShut off the engine
NLoosen nuts
NRaise the guide bar at the nose
NUse the screwdriver to turn the
screw (1) to the right until the saw
chain rests against the underside of
the guide bar
NRaise the guide bar further and
tighten the nuts securely
NNext step: Continue with "Checking
Chain Tension"
A new saw chain has to be re-tensioned
more often than one that has been in
use for some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions"
NShut off the engine
NWear work gloves to protect your
hands
NThe saw chain must fit snugly
against the underside of the bar and
it must still be possible to pull the
chain along the guide bar by hand
NIf necessary, re-tension the saw
chain
A new saw chain has to be re-tensioned
more often than one that has been in
use for some time.
NCheck chain tension frequently –
see chapter on "Operating
Instructions"
For automatic and reliable lubrication of
the chain and guide bar – use only an
environmentally compatible quality
chain and bar lubricant. Rapidly
biodegradable STIHL BioPlus is
recommended.
NOTICE
Biological chain oil must be resistant to
aging (e.g. STIHL BioPlus), since it will
otherwise quickly turn to resin. This
results in hard deposits that are difficult
to remove, especially in the area of the
chain drive and chain. It may even cause
the oil pump to seize.
The service life of the chain and guide
bar depends on the quality of the
lubricant. It is therefore essential to use
only a specially formulated chain
lubricant.
WARNING
Do not use waste oil. Renewed contact
with waste oil can cause skin cancer.
Moreover, waste oil is environmentally
harmful.
NOTICE
Waste oil does not have the necessary
lubricating properties and is unsuitable
for chain lubrication.
Tensioning the Chain
1
390BA045 KN
Checking Chain Tension
390BA046 KN
Chain Lubricant

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13
NOTICE
A full chain oil tank is sufficient for only
half a tankful of fuel. Check the oil level
regularly during cutting work. Never
allow the oil tank to run dry
Preparations
NThoroughly clean the fuel cap and
the area around it to ensure that no
dirt falls into the tank
NPosition the machine so that the fuel
cap is facing upwards
To open:
NOpen the bracket
NTwist fuel cap (ca. 1/4 turn)
Markings on fuel cap and oil tank must
align
NRemove the fuel cap
Filling up with chain oil
NFill up with chain oil
Take care not to spill chain oil during
refilling and do not overfill the tank.
STIHL recommends use of the STIHL
filling system for chain oil (special
accessory).
To close:
Clip is in an upright position:
NFit the fuel cap – marks on the fuel
cap and oil tank must line up.
NPush the fuel cap down as far as it
will go
Filling Chain Oil Tank
0000097195 001
0000,GXX-0135-A0 KN
0000-GXX-0136-A0
0000-GXX-0137-A0 KN
0000-GXX-0138-A0 KN
0000-GXX-0137-A0 KN

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14
NHold the fuel cap down and twist it
clockwise until it engages
Then the markings on fuel cap and oil
tank will align
NClose the bracket lock
The fuel cap is locked
If the oil level in the tank does not go
down, the reason may be a problem in
the oil supply system: Check chain
lubrication, clean the oilways, contact
your dealer for assistance if necessary.
STIHL recommends that maintenance
and repair work be carried out only by
authorised STIHL dealers.
If the fuel cap will not lock onto the oil
tank
The base of the fuel cap is tilted in
relation to the upper part.
NRemove the fuel cap from the oil
tank and look at it from above NFit fuel cap and twist it
counterclockwise until it engages in
the seat of the filling port
NContinue to twist the fuel cap
counterclockwise (approx. 1/4 turn)
– this will twist the base of the cap
into the correct position
NTwist the fuel cap clockwise and
close it – see section "Closing"
0000-GXX-0139-A0 KN
0000-GXX-0140-A0 KN
0000-GXX-0141-A0 KN
0000-GX-0142 A0 KN
left: Base of fuel cap is tilted –
interior marking (1) is aligned
with the exterior marking
right: Bottom of the fuel cap in cor-
rect position – inner mark is
under the grip. It does not
align with the exterior
marking
002BA584 KN
1
0000-GXX-0136-A0

HT-KM
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15
The saw chain must always throw off a
small amount of oil.
NOTICE
Never operate without chain lubrication.
If the chain runs dry, the whole cutting
attachment will be irretrievably damaged
within a very short time. Always check
chain lubrication and the oil level in the
tank before starting work.
Every new chain has to be broken in for
about 2 to 3 minutes.
After breaking in the chain, check chain
tension and adjust if necessary – see
"Checking Chain Tension".
Not all basic power tools are equipped
with a shoulder strap and carrying ring.
NFit the carrying ring – see "Mounting
the Attachment".
The shoulder strap is available as a
special accessory.
The type of carrying ring, shoulder strap
and carabiner depends on the market
and the basic power tool.
Shoulder Strap
NPut on the shoulder strap (1).
NAdjust the length of the strap – with
the machine attached, the
carabiner (2) must be about a
hand's width below your right hip.
Attaching Machine to Shoulder Strap
NAttach the carabiner (1) to the
carrying ring (2) on the shaft.
Disconnecting Machine from Shoulder
Strap
NPress down the bar on the
carabiner (1) and pull the carrying
ring (2) out of the carabiner.
Throwing Off the Machine
WARNING
The machine must be quickly thrown off
in the event of imminent danger. To
throw off the machine, use the
procedure described under
"Disconnecting Machine from Shoulder
Strap". Practice removing and putting
down the machine as you would in an
Checking Chain Lubrication
390BA048 KN
Fitting the Harness
1
0000-GXX-0503-A0
2
1
2
1
2
0000-GXX 1056-A0
2
1
2
0000-GXX 1058-A0
1

HT-KM
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16
emergency. To avoid damage, do not
throw the machine to the ground when
practicing.
Starting the Engine
Always follow the operating instructions
for the KombiEngine and basic power
tool.
NRemove the chain guard.
Check that the chain is not touching the
ground or any other obstacles.
NPosition the unit securely for
starting: Put the powerhead on the
ground so that it rests on the engine
support. Rest the hook on the
cutting attachment on a raised
support, e.g. a mound or branch.
NMake sure you have a firm footing,
either standing, stooping or
kneeling.
NHold the machine with you left hand
and press it down firmly – do not
touch the controls on the control
handle – see KombiEngine or basic
power tool instruction manual.
NOTICE
Do not stand or kneel on the drive tube.
Alternative method of starting
NHang the cutting attachment on a
branch so that it is held by the hook.
NMake sure you have a safe and
secure footing.
NHold the machine with you left hand
and press it down firmly – do not
touch the controls on the control
handle – see KombiEngine or basic
power tool instruction manual.
WARNING
The saw chain may begin to run as soon
as the engine starts. For this reason, blip
the throttle after starting – the engine
returns to idling speed.
The starting procedure is now as
described in the instruction manual of
the KombiEngine or basic power tool
you are using.
Stopping the Engine
NSee KombiEngine or basic power
tool instruction manual.
Starting / Stopping the
Engine
402BA039 KN
402BA040 KN

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During Operation
Check chain tension frequently
A new chain has to be retensioned more
often than one that has been in use for
some time.
Chain cold
Tension is correct when the chain fits
snugly against the underside of the bar
and can still be pulled along the bar by
hand. Retension if necessary – see
"Tensioning the Saw Chain".
Chain at operating temperature
The chain stretches and begins to sag.
The drive links must not come out of the
bar groove – the chain may otherwise
jump off the bar. Retension the chain –
see "Tensioning the Saw Chain".
NOTICE
The chain contracts as it cools down. If it
is not slackened off, it can damage the
gear shaft and bearings.
After Finishing Work
NSlacken off the chain if you have
retensioned it at operating
temperature during cutting work.
NOTICE
Always slacken off the chain after
finishing work. The chain contracts as it
cools down. If it is not slackened off, it
can damage the gear shaft and
bearings.
Storing for a long period
See chapter on "Storing the Machine"
NTurn the bar over – every time you
sharpen the chain and every time
you replace the chain – this helps
avoid one-sided wear, especially at
the nose and underside of the bar
NRegularly clean the oil inlet hole (1),
the oilway (2) and the bar
groove (3)
NMeasure the groove depth – with the
scale on the filing gauge (special
accessory) – in the area used most
for cutting
If groove depth is less than specified:
NReplace the guide bar
Operating Instructions Taking Care of the Guide Bar
Chain type Chain pitch Minimum
groove depth
Picco 3/8" P 5.0 mm
Picco 1/4" P 4.0 mm
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3
2
1

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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. For periods of 3 months or longer
NRemove the saw chain and guide
bar, clean them and spray with
corrosion inhibiting oil.
NIf you use a biological chain and bar
lubricant, e.g. STIHL BioPlus,
completely fill the chain oil tank.
NIf the KombiTool is removed from
the KombiEngine and stored
separately: Fit the protective cap on
the drive tube to avoid dirt getting
into the coupling.
NStore the machine in a dry, high or
locked location – out of the reach of
children and other unauthorized
persons.
NRemove chain sprocket cover, saw
chain and guide bar
Replace the chain sprocket
–replace after using two saw chains
or sooner
–if the wear marks (a) on the sprocket
are deeper than approx. 0.5 mm
(0.02 in) since this would reduce the
service life of the saw chain. You
can use a gauge (special
accessory) to check the depth of the
wear marks
Using two saw chains in alternation
helps preserve the chain sprocket.
STIHL recommends the use of original
STIHL chain sprockets.
Storing the Machine Checking and Replacing the
Chain Sprocket
a
000BA054 KN