Stihl HT-KM / KM HT KM HT / HT-KM

STIHL HT-KM

WARNING

Read Instruction Manual thoroughly
before use and follow all safety
precautions – improper use can
cause serious or fatal injury.

ADVERTENCIA

Antes de usar la máquina lea y siga
todas las precauciones de
seguridad dadas en el manual de
instrucciones – el uso incorrecto
puede causar lesiones graves o
mortales.

Instruction Manual
Manual de instrucciones

Instruction Manual
1 - 30

Manual de instrucciones
31 - 63

Contents

English

KombiSystem 2
Guide to Using this Manual 2
Safety Precautions and Working

Techniques 3
Using the Unit 10
Approved KombiEngines 12
Assembling the Unit 12
Mounting the KombiTool 13

Original Instruction ManualPrinted on chlorine-free paper

Cutting Attachment 14
Mounting the Bar and Chain 14
Tensioning the Chain 15
Checking Chain Tension 16
Chain Lubricant 16
Filling Chain Oil Tank 16
Checking Chain Lubrication 18
Fitting the Harness 19
Starting / Stopping the Engine 20
Operating Instructions 20
Storing the Machine 21
Taking Care of the Guide Bar 21
Checking and Replacing the Chain

Sprocket 22

Printing inks contain vegetable oils, paper can be recycled.

Maintaining and Sharpening the
Saw Chain 23

Maintenance and Care 26
Main Parts 27
Specifications 28
Maintenance and Repairs 29
Disposal 29
Trademarks 29

Allow only persons who fully understand
the manuals of the KombiEngine and
pole pruner KombiTool to operate this
power tool combination.

To receive maximum performance and
satisfaction from your STIHL
KombiTool, it is important that you read,
understand and follow the safety
precautions and the operating and
maintenance instructions in chapter
"Safety Precautions and Working
Techniques" before using your
KombiTool. For further information you
can go to www.stihlusa.com.

Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in the
two manuals.

WARNING

Because a KombiEngine equipped with
a pole pruner KombiTool has a high­speed cutting attachment some special
safety precautions must be observed to
reduce the risk of personal injury.
Careless or improper use may cause
serious or even fatal injury.

© ANDREAS STIHL AG & Co. KG, 2020

0458-473-8621-C. VA5.J20.

0000007126_006_GB

HT-KM

This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.

1

English

KombiSystem Guide to Using this Manual

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 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 or
embossed on the machine are shown
and explained in this manual.

Symbols in Text

Many operating and safety instructions
are supported by illustrations.

The individual steps or procedures
described in the manual may be marked
in different ways:

N A bullet marks a step or procedure.
A description of a step or procedure that

refers directly to an illustration may
contain item numbers that appear in the
illustration. Example:

N Loosen the screw (1).
N Lever (2) ...

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

WARNING

Indicates a hazardous situation that, if
not avoided, could result in death or
serious injury.

NOTICE

Indicates a risk of property damage,
including damage to the machine or its
individual components.

Engineering Improvements

STIHL’s philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time to time. Therefore,
some changes, modifications and
improvements may not be covered in
this manual. If the operating
characteristics or the appearance of
your machine differs from those
described in this manual, please contact
your STIHL dealer or the STIHL
distributor for your area for assistance.

DANGER

Indicates a hazardous situation that, if
not avoided, will result in death or
serious injury.

2

HT-KM

English

Safety Precautions and
Working Techniques

Because a KombiEngine
equipped with a pole
pruner KombiTool is a
high-speed, fast-cutting
power tool with an
extended reach, special
safety precautions must
be observed to reduce
the risk of personal injury.

It is important that you
read, fully understand
and observe the following
safety precautions and
warnings. Read the
instruction manuals and
the safety precautions for
your KombiEngine and
KombiTool periodically.
Careless or improper use
may cause serious or
fatal injury.

Have your STIHL dealer show you how
to operate your power tool. Observe all
applicable national, state and local laws,
safety regulations, standards and
ordinances.

WARNING

Do not lend or rent your power tool
without the instruction manuals for your
KombiEngine and KombiTool. Be sure
that anyone using it understands the
information contained in these manuals.

WARNING

The use of this machine may be
hazardous. The pole pruner chain has
many sharp cutters. If the cutters contact
your flesh, they will cut you, even if the
chain is not moving.

Do not cut any material other than wood
or wooden objects. Use your
KombiEngine equipped with the pole
pruner KombiTool for limbing only.

WARNING

Do not use it for other purposes, since
misuse may result in personal injury or
property damage, including damage to
the machine.

WARNING

Minors should never be allowed to use
this power tool. Bystanders, especially
children, and animals should not be
allowed in the area where it is in use.

WARNING

To reduce the risk of injury to bystanders
and damage to property, never let your
power tool run unattended. When it is
not in use (e.g. during a work break),
shut it off and make sure that
unauthorized persons do not use it.

Most of these safety precautions and
warnings apply to the use of all STIHL
pole pruners. Different models may have
different parts and controls. See the
appropriate section of your
KombiEngine and KombiTool instruction
manuals for a description of the controls
and the function of the parts of your
model.

Safe use of a power tool involves

1. the operator

2. the power tool

3. the use of the power tool.

THE OPERATOR

Physical Condition
You must be in good physical condition

and mental health and not under the
influence of any substance (drugs,
alcohol, etc.) which might impair vision,
dexterity or judgment. Do not operate
this machine when you are fatigued.

WARNING

Be alert – if you get tired, take a break.
Tiredness may result in loss of control.
Working with any power tool can be
strenuous. If you have any condition that
might be aggravated by strenuous work,
check with your doctor before operating
this machine.

Proper Clothing

WARNING

To reduce the risk of injury, the operator
should wear proper protective apparel.

HT-KM

3

English

WARNING

To reduce the risk of
injury to your eyes never
operate your power tool
unless wearing goggles
or properly fitted protec­tive glasses with
adequate top and side
protection complying with
ANSI Z87 "+" (or your
applicable national stand­ard). To reduce the risk of
injury to your face STIHL
recommends that you
also wear a face shield or
face screen over your
goggles or protective
glasses.

Wear an approved safety
hard hat to reduce the
risk of injury to your head.

Power tool noise may
damage your hearing.
Wear sound barriers (ear
plugs or ear mufflers) to
protect your hearing.
Continual and regular
users should have their
hearing checked
regularly.

Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.

Always wear heavy-duty
work gloves (e.g. made of
leather or other wear
resistant material) when
handling the machine
and the cutting tool.
Heavy-duty, nonslip
gloves improve your grip
and help to protect your
hands.

Clothing must be sturdy
and snug-fitting, but allow
complete freedom of
movement. Wear long
pants made of heavy
material to help protect
your legs. Do not wear
shorts, sandals or go
barefoot.

Avoid loose-fitting jackets, scarfs,
neckties, jewelry, flared or cuffed pants,
unconfined long hair or anything that
could become caught on branches,
brush or the moving parts of the unit.
Secure hair so it is above shoulder level.

Good footing is very
important. Wear sturdy
boots with nonslip soles.
Steel-toed safety boots
are recommended.

For further instructions on proper
clothing see the safety precautions in
the instruction manual of the
KombiEngine you are using.

THE POWER TOOL (KOMBIENGINE
EQUIPPED WITH POLE PRUNER
KOMBITOOL)

For illustrations and definitions of the
power tool parts see the chapter on
"Main Parts."

WARNING

Never modify this power tool in any way.
Only attachments supplied by STIHL or
expressly approved by STIHL for use
with the specific STIHL KombiEngine
are authorized. Although certain
unauthorized attachments are useable
with STIHL power tools, their use may,
in fact, be extremely dangerous.

If this 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. Check in particular that
the fuel system is tight (no leaks) and
that the controls and safety devices are
working properly. Do not continue
operating this machine if it is damaged.
In case of doubt, have it checked by your
STIHL servicing dealer.

THE USE OF THE POWER TOOL
(KOMBIENGINE EQUIPPED WITH
POLE PRUNER KOMBITOOL)

Transporting the Power Tool

WARNING

Always switch off the engine and fit the
scabbard over the cutting attachment
before transporting the power tool over
long distances.

4

HT-KM

English

002BA254 KN

275BA006 KN

It may be carried only in a horizontal
position. Grip the shaft in a manner that
the machine is balanced horizontally.
Keep the hot muffler away from your
body and the cutting attachment behind
you. Accidental acceleration of the
engine can cause the chain to rotate and
cause serious injuries.

WARNING

When transporting it in a vehicle,
properly secure it to prevent turnover,
fuel spillage and damage to the unit.

Before Starting
Take off the chain guard (scabbard) and

inspect the pole pruner for proper
condition and operation. (See the
maintenance chart near the end of this
instruction manuals.)

WARNING

Always check your power tool for proper
condition and operation before starting.
Never attempt to modify the controls or
safety devices.

WARNING

Never operate your power tool if it is
damaged, improperly adjusted or
maintained, or not completely or
securely assembled.

Keep the handles clean and dry at all
times; it is particularly important to keep
them free of moisture, pitch, oil, fuel mix,
grease or resin in order for you to
maintain a firm grip and properly control
your power tool.

For proper assembly of the bar and
chain follow the procedure described in
the chapter "Mounting the Bar and
Chain" in this instruction manual.

STIHL Oilomatic chain, guide bar and
sprocket must match each other in
gauge and pitch.

WARNING

Proper tension of the chain is extremely
important. In order to avoid improper
setting, the tensioning procedure must
be followed as described in your
manual. Always make sure the
hexagonal nut(s) for the sprocket cover
is (are) tightened securely after
tensioning the chain in order to secure
the bar. Never start the pole pruner with
the sprocket cover loose. Check chain
tension once more after having
tightened the nut(s) and thereafter at
regular intervals (whenever the pole
pruner is shut off). If the chain becomes
loose while cutting, shut off the engine
and then tighten. Never try to adjust the
chain while the engine is running!

Adjust harness and hand grip to suit
your size before starting work. To be
better prepared in case of an
emergency, practice releasing the unit
from the harness as quickly as possible.

Starting
Start the engine at least 10 feet (3 m)

from the fueling spot, outdoors only.

For specific starting instructions, see the
appropriate section of your
KombiEngine and KombiTool manuals.

Place the pole pruner on firm ground or
other solid surface in an open area or, in
the alternative, as shown in the above
picture. Maintain good balance and
secure footing.

WARNING

To reduce the risk of injury from loss of
control, do not attempt to "drop start"
your power tool.

WARNING

To reduce the risk of injury from loss of
control be absolutely sure that the guide
bar and chain are clear of you and all
other obstructions and objects, including
the ground, because when the engine
starts at starting-throttle, engine speed
will be fast enough for the clutch to
engage the sprocket and move the
chain.

Once the engine has started,
immediately blip the throttle trigger,
which should release the starting throttle
and allow the engine to slow down to
idle.

HT-KM

5

English

473BA007 KN

With the engine running only at idle,
attach the power tool to the spring hook
of your harness (see appropriate
chapter of this manual).

WARNING

Your power tool is a one-person
machine. Do not allow other persons in
the general work area, even when
starting.

See also the Safety Precautions on
Starting in the instruction manual of your
KombiEngine.

During Operation
Holding and Controlling the Power Tool
Always hold the unit firmly with both

hands on the handles while you are
working. Wrap your fingers and thumbs
around the handles.

Place your left hand on the front handle
and your right hand on the rear grip and
throttle trigger. This also applies to left­handers. Keep your hands in this
position to have your pole pruner under
control at all times.

WARNING

Never attempt to operate your power
tool with one hand. Loss of control of the
power tool resulting in serious or fatal
injury may result.

WARNING

Do not overreach. Keep proper footing
and balance at all times. Special care
must be taken in slippery conditions (wet
ground, snow) and in difficult, overgrown
terrain. Watch for hidden obstacles such
as tree stumps, roots and ditches to
avoid stumbling. For better footing, clear

away fallen branches, scrub and
cuttings. Be extremely cautious when
working on slopes or uneven ground.

WARNING

To reduce the risk of injury from loss of
control, never work on a ladder, in a tree
or any other insecure support. Never
hold the machine above shoulder
height. When working at a height above
15 feet (4.5 m) use a lift bucket.

WARNING

Take extreme care in wet and freezing
weather (rain, snow, ice). Put off the
work when the weather is windy, stormy
or rainfall is heavy.

Working Conditions
Operate and start your power tool only

outdoors in a well-ventilated area.
Operate it under good visibility and
daylight conditions only. Work carefully.

WARNING

If the vegetation being cut or the
surrounding ground is coated with a
chemical substance (such as an active
pesticide or herbicide), read and follow
the instructions and warnings that
accompanied the substance at issue.

WARNING

Inhalation of certain
dusts, especially organic
dusts such as mold or
pollen, can cause sus­ceptible persons to have
an allergic or asthmatic
reaction.

6

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English

15m (50ft)

15m (50ft)

Substantial or repeated inhalation of
dust and other airborne contaminants, in
particular those with a smaller particle
size, may cause respiratory or other
illnesses. This includes wood dust,
especially from hardwoods, but also
from some softwoods such as Western
Red Cedar. Control dust at the source
where possible. Use good work
practices, such as always cutting with a
properly sharpened chain (which
produces wood chips rather than fine
dust) and operating the unit so that the
wind or operating process directs any
dust raised by the power tool away from
the operator. Follow the
recommendations of EPA / OSHA /
NIOSH and occupational and trade
associations with respect to dust
("particulate matter"). When the
inhalation of dust cannot be
substantially controlled, i.e., kept at or
near the ambient (background) level, the
operator and any bystanders should
wear a respirator approved by NIOSH /
MSHA for the type of dust encountered.

WARNING

Breathing asbestos dust is dangerous
and can cause severe or fatal illness,
respiratory illness or cancer. The use
and disposal of asbestos-containing
products have been strictly regulated by
OSHA and the Environmental Protection
Agency. If you have any reason to
believe that you might be cutting
asbestos, immediately contact your
employer or a local OSHA
representative.

WARNING

This power tool has a large range. In
order to reduce the risk of personal or
even fatal injury to bystanders from
falling objects or inadvertent contact with
the moving chain of your power tool
always keep bystanders at least 50 feet
(15 m) away when the power tool is
running.

DANGER

Your power tool is not
insulated against electric
shock. To reduce the risk
of electrocution, never
operate this power tool in
the vicinity of any wires or
cables (power, etc.)
which may be carrying
electric current.

Electricity can jump from one point to
another by means of arcing. Higher
voltage increases the distance electricity
can arc. Electricity can also move
through branches, especially if they are

wet. Maintain a clearance of at least
50 feet (15 m) between the pole pruner
(including any branches it is contacting)
and any electrical line carrying live
current. Before working with less
clearance, contact your electric utility
and make sure the current is turned off.

Stop the engine immediately if you are
approached.

Make sure that the saw chain does not
touch any foreign materials such as
rocks, fences, nails and the like. Such
objects may be flung off and injure the
operator or bystanders, or damage the
saw chain.

WARNING

Even though bystanders should be kept
away from the running power tool, never
work alone. Keep within calling distance
of others in case help is needed.

Operating Instructions

WARNING

Do not operate your power tool using the
starting throttle lock, as you do not have
control of the engine speed.

In the event of an emergency, switch off
the engine immediately – move the slide
control / stop switch / momentary stop
switch to 0 or STOP.

See section of your KombiEngine
instruction manual on the proper use of
the slide control / stop switch /
momentary stop switch.

HT-KM

7

English

max

473BA008 KN

WARNING

To reduce the risk of cut injuries, keep
hands and feet away from the saw
chain. Never touch a moving chain with
your hand or any other part of your body.
The saw chain continues to move for a
short period after the throttle trigger is
released (inertia effect).

Accelerating the engine while the chain
is blocked increases the load and will
cause the clutch to slip continuously.
This may result in overheating and
damage to important components (e.g.
clutch, polymer housing components) –
which can then increase the risk of injury
from the chain moving while the engine
is idling.

WARNING

If the chain becomes clogged, always
shut off the engine and make sure the
chain has stopped before cleaning.

WARNING

Prior to limbing, clear the working area
from interfering limbs and brush. Then,
establish an escape area away from
where the cut limbs can fall, and remove
all obstacles.

Keep work area clear – move away
fallen limbs. Place all tools and
equipment at a safe distance from the
branches being limbed, but not in the
escape area.

WARNING

Always observe the general condition of
the tree. Look for decay and rot in the
trunk and branches. If it is rotted inside,

it could snap and fall toward the operator
while being cut. Also look for broken or
dead branches which could vibrate
loose and fall on the operator. If the
branch is thick or heavy, make a shallow
relief cut on the bottom of the branch
before cutting down from the top to help
prevent splitting of the branch. See
chapter on "Using the Unit".

WARNING

To reduce the risk of severe or even fatal
injury from falling objects do not cut
vertically above your body. Hold the pole
pruner at an angle of not more than 60°
from the horizontal level (see picture).
Objects may fall in unexpected
directions. Do not stand directly
underneath the limb being cut!

Watch for falling wood! As soon as the
limbed branch starts to fall, step aside
and keep a sufficient distance away from
the falling wood.

WARNING

Always pull the unit out of the cut with
the chain running to reduce the
possibility of pinching the cutting
attachment. Don't put pressure on the
pole pruner when reaching the end of a
cut. The pressure may cause the bar
and rotating chain to pop out of the cut or
kerf, go out of control and strike some
other object.

If the bar becomes pinched and caught
in the branch so that the chain can no
longer move, shut off the pole pruner
and carefully move the branch to open
the pinch and release the bar.

WARNING

If a rotating saw chain strikes a rock or
other hard object, sparks may be
created, which can ignite flammable
materials under certain circumstances.
Flammable materials can include dry
vegetation and brush, particularly when
weather conditions are hot and dry.
When there is a risk of fire or wildfire, do
not use a power tool around flammable
materials or around dry vegetation or
brush. Contact your local fire authorities
or the U.S. Forestry Service if you have
any question about whether vegetation
and weather conditions are suitable for
the use of a pole pruner.

WARNING

The gearbox becomes hot during
operation. To reduce the risk of burn
injury, do not touch the gear housing
when it is hot.

8

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English

002BA230 KN

001BA037 KN

A

001BA038 KN

B

Reactive Forces

WARNING

Reactive forces may occur any time the
chain is rotating.The force used to cut
wood can be reversed and work against
the operator. If the rotating chain is
suddenly stopped by contact with any
solid object such as a branch or is
pinched, the reactive forces may occur
instantly. These reactive forces may
result in loss of control, which, in turn,
may cause personal injury. An
understanding of the causes of these
reactive forces may help you avoid the
element of surprise and loss of control.

Because of the design of the pole
pruner, the reactive forces experienced
when working with it are generally not as
severe as those encountered with a
chain saw. Nevertheless, you should
always maintain a proper grip and good
footing to control the power tool when
you experience such forces.

The most common reactive forces are:

– kickback,
– pushback,
– pull-in.

Kickback
Kickback may occur when the moving

saw chain near the upper quadrant of
the bar nose contacts a solid object or is
pinched.

The reaction of the cutting force of the
chain causes a rotational force on the
pole pruner in the direction opposite to
the chain movement. This may cause
the bar to move upward.

To Avoid Kickback
The best protection from kickback is to

avoid kickback situations:

1. Be aware of the location of the guide
bar nose at all times

2. Never let the nose of the guide bar
contact any object. Do not cut limbs
with the nose of the guide bar. Be
especially careful near wire fences
and when cutting small, tough
limbs, which may easily catch the
chain.

3. Cut only one limb at a time.

A = Pull-in

a foreign object in the wood. The
reaction of the chain pulls the pole
pruner forward.

Pull-in frequently occurs when the chain
is not rotating at full speed before it
contacts the wood.

To Avoid Pull-in

1. Be alert to forces or situations that
may cause material to pinch the
chain at the bottom of the bar.

2. Always start a cut with the chain
rotating at full speed.

B = Pushback

Pushback occurs when the chain on the
top of the bar is suddenly stopped when
it is pinched, caught or encounters a
foreign object in the wood. The reaction
of the chain may drive the pole pruner
rapidly straight back toward the
operator. Pushback frequently occurs
when the top of the bar is used for
cutting.

HT-KM

Pull-in occurs when the chain on the
bottom of the bar is suddenly stopped
when it is pinched, caught or encounters

9

English

To Avoid Pushback

1. Be alert to forces or situations that
may cause material to pinch the
chain at the top of the bar.

2. Do not cut more than one limb at a
time.

3. Do not twist the bar when
withdrawing it from an underbuck
cut because the chain can pinch.

MAINTENANCE, REPAIR AND
STORING

WARNING

Always stop the engine and make sure
that the chain is stopped before doing
any maintenance or repair work or
cleaning the power tool. Do not attempt
any maintenance or repair work not
described in your KombiEngine and
KombiTool instruction manuals. Have
such work performed by your STIHL
servicing dealer only.

chain when easy-to-cut wood becomes
hard to cut or burn marks appear on the
wood.

Tighten all nuts, bolts and screws except
the carburetor adjustment screws after
each use.

Do not clean your machine with a
pressure washer. The solid jet of water
may damage parts of the machine.

Store the power tool in a dry and high or
locked location out of reach of children.

Store chain oil in approved and properly
labeled safety-type canisters only. Avoid
direct contact with the skin!

Using the Unit

Preparations

N Wear suitable protective clothing,

observe safety precautions.

N Start the engine.
N Put on the shoulder strap.

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.

WARNING

Use only identical STIHL replacement
parts for maintenance and repair. Use of
non-STIHL parts may cause serious or
fatal injury.

Wear gloves when handling or
performing maintenance on the bar and
chain.

WARNING

Keep the chain, bar and sprocket clean;
replace worn sprockets or chains. Keep
the chain sharp. You can spot a dull

10

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.

HT-KM

English

max

473BA010 KN

246BA032 KN

2

1

246BA033 KN

3

4

A

390BA024 KN

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

Relieving cut

To avoid tearing the bark on thick
branches, always start by performing a
relieving cut (1) on the underside of the
branch.

N To do this, apply the cutting

attachment and pull it across the
bottom of the branch in an arc as far
as the bar nose.

N Position the housing against the

branch and then perform the cross­cut (2).

Flush-cutting thick branches

If branch diameter is more than
10 cm (4 in), first

N perform 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.

To avoid pinching the bar in the cut,
position the housing against the branch
and then perform the cross-cut from the
top downwards.

HT-KM

11

English

246BA017 A1

246BA018 KN

413BA014 KN

002BA248 KN

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

Approved KombiEngines Assembling the Unit

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 91 R,
KM 94 R, KM 111 R, KM 131 R,
KMA 130 R, KMA 135 R

WARNING

Loop-handled machines must be
equipped with a barrier bar.

N Pull the protective caps off the ends

of the drive tube 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 drive tube as far as stop.

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.

12

HT-KM

English

A

402BA002 KN

246BA019 KN

1

2

3

1

3

246BA020 KN

1

473BA012 KN

1

002BA326 KN

2

3

002BA327 KN

4

Mounting the Gearbox

N Apply a mark at distance A (2.4 in /

60 mm) from the end of the drive
tube.

N Push the gearbox (1) onto the drive

tube 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).

N Insert the clamp screws (3) as far as

stop.

N Line 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.

N Tighten 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

Mounting the KombiTool

N Push 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.

N Tighten down the star knob (4)

firmly.

Removing the KombiTool

N Reverse the above sequence to

remove the drive tube.

HT-KM

13

English

001BA248 KN

1

2

3

a

001BA244 KN

246BA021 KN

1

2

246BA022-A1

Cutting Attachment

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

Your pole pruner comes standard with a
chain scabbard that matches the cutting
attachment.

If you use guide bars of different lenghts
on the pole pruner, the length of the
chain scabbard must be matched to the
guide bar to reduce the risk of injury. It
should cover the full length of the guide
bar.

The length of the matching guide bars is
marked on the side of the chain
scabbard.

Mounting the Bar and Chain

Removing the Chain Sprocket Cover

N Unscrew the nut and remove the

chain sprocket cover.

N Turn the screw (1) clockwise until

the tensioner slide (2) butts against
the right end of the housing slot.

14

HT-KM

English

390BA003 KN

1

246BA024 KN

Fitting the Chain

WARNING

Wear work gloves to protect your hands
from the sharp cutters.

N Fit the chain – start at the bar nose.

1

5

3

4

N Fit the guide bar over the screw (3)

and engage peg of tensioner slide in
the hole (4) – place the chain over
the sprocket (5) at the same time.

N Turn the tensioning screw (1)

counterclockwise 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

on the nut fingertight.

N Go to chapter on "Tensioning the

Saw Chain".

Tensioning the Chain

246BA023 A1

Re-tensioning during cutting work:

N Shut off the engine.
N Loosen the nut.
N Hold the bar nose up.
N Use a screwdriver to turn the

tensioning screw (1)
counterclockwise until the chain fits
snugly against the underside of the
bar.

N While still holding the bar nose up,

tighten down the nut firmly.

N Go to "Checking Chain Tension".
A new chain has to be re-tensioned

more often than one that has been in
use for some time.

N Check chain tension frequently –

see chapter on "Operating
Instructions".

HT-KM

15

English

246BA025 KN

246BA026 KN

Checking Chain Tension

N Shut off the engine.
N Wear work gloves to protect your

hands.

N The chain must fit snugly against

the underside of the bar and it must
still be possible to pull the chain
along the bar by hand.

N If necessary, re-tension the chain.
A new chain has to be re-tensioned

more often than one that has been in
use for some time.

N Check chain tension frequently –

see chapter on "Operating
Instructions".

Chain Lubricant Filling Chain Oil Tank

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.

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

N Thoroughly clean the tank cap and

the area around it to ensure that no
dirt falls into the tank.

N Position the machine so that the

tank cap faces up.

16

HT-KM

Opening

002BA575 KN

0000-GXX-0136-A0

0000-GXX-0137-A0 KN

0000-GXX-0138-A0 KN

0000-GXX-0137-A0 KN

0000-GXX-0139-A0 KN

0000-GXX-0140-A0 KN

0000-GXX-0141-A0 KN

English

N Raise grip to vertical position.

N Turn the cap counterclockwise

(about a quarter turn).

Marks on tank cap and oil tank must line
up.

N Remove the tank cap.

Filling the Chain Oil Tank

N Fill up with chain oil.
Take care not to spill chain oil while

refilling and do not overfill the tank.

Closing

Grip must be vertical:
N Fit the cap – marks on tank cap and

oil tank must line up.

N Press the cap down as far as stop.

N While holding the cap depressed,

turn it clockwise until it engages in
position.

The marks on the cap and oil tank are
then in alignment.

N Fold the grip down.

HT-KM

17

English

0000-GX-0142 A0 KN

002BA584 KN

1

0000-GXX-0136-A0

246BA027 KN

Checking Chain Lubrication

Tank 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 you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.

If the tank cap cannot be locked in the oil
tank opening

Bottom of cap is twisted in relation to
top.

N Remove the cap from the oil tank

and check it from above.

Left: Bottom of cap is twisted –

inner mark (1) in line with
outer mark.

Right: Bottom of cap in correct posi-

tion – inner mark is under the
grip. It is not in line with the
outer mark.

N Place the cap on the opening and

rotate it counterclockwise until it
engages the filler neck.

N Continue rotating the cap

counterclockwise (about a quarter
turn) – this causes the bottom of the
cap to be turned to the correct
position.

N Turn the cap clockwise and lock it in

position – see section on "Closing".

The saw chain must always throw off a
small amount of oil.

NOTICE

Never operate your machine 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".

18

HT-KM

English

1

002BA374 KN

2

1

002BA308 KN

2

1

2

1

002BA310 KN

2

1

2

Fitting the Harness

The type and style of the harness,
carrying ring and carabiner (spring hook)
depend on the market.

Shoulder Strap

Attaching Machine to Harness

N Attach the carabiner (1) to the

carrying ring (2) on the drive tube –
hold the carrying ring steady.

Detaching Machine from Harness

Practice quickly detaching the power
tool from the carabiner as described
under "Detaching Machine from
Harness".

Practice slipping the strap off your
shoulder.

N Put on the shoulder strap (1).
N Adjust the length of the strap so that

the carabiner (2) is about a hand’s
width below your right hip.

HT-KM

N Press 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.
Practice removing and putting down the
power tool as you would in an
emergency. To avoid damage, do not
throw the power tool to the ground when
practicing.

19