Stihl BF-KM User manual

BF-KM
2 - 14 Instruction Manual

Contents
1 KombiSystem..............................................2
2 Guide to Using this Manual.........................2
3 Safety Precautions and Working Techni‐
ques............................................................ 2
4 Using the Unit............................................. 6
5 Approved KombiEngines............................ 7
6 Assembling the Unit.................................... 7
7 Mounting the KombiTool............................. 9
8 Fitting the Harness......................................9
9 Starting / Stopping the Engine.................. 10
10 Storing the Machine.................................. 11
11 Maintenance and Care..............................11
12 Minimize Wear and Avoid Damage...........11
13 Main Parts.................................................12
14 Specifications............................................12
15 Maintenance and Repairs......................... 13
16 Disposal.................................................... 13
17 EC Declaration of Conformity................... 13
18 UKCA Declaration of Conformity.............. 14
1 KombiSystem
In the STIHL KombiSystem a number of different
KombiEngines and KombiTools can be com‐
bined to produce a power tool. In this instruction
manual the functional unit formed by the Kom‐
biEngine 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.
2 Guide to Using this Manual
2.1 Pictograms
All the pictograms attached to the machine are
shown and explained in this manual.
2.2 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.
2.3 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 man‐
ual.
3 Safety Precautions and
Working Techniques
Special safety precautions must be
observed when working with the culti‐
vator because its pointed and sharp-
edged rotor blades rotate at high
speed.
Always read and and make sure you
understand both user manuals (Kom‐
biEngine and KombiTool) before
using your power tool for the first time
and keep them in a safe place for
future reference. Non-compliance
with the user manuals may cause
serious or even fatal injury.
Lend or rent your machine only to persons who
are familiar with this model and its operation – do
not lend or rent your machine without the Kom‐
biEngine and KombiTool user manuals.
Use the cultivator only for tilling previously culti‐
vated, packed or loose soil, furrowing and work‐
ing in mulches.
The machine must not be used for any other pur‐
poses – risk of accident!
Only mount rotor blades and accessories that
are explicitly approved for this power tool by
STIHL or are technically identical. If you have
any questions in this respect, consult your
dealer.
Use only high-quality parts and accessories. Oth‐
erwise, there is a risk of accidents and damage
to the machine.
English
2 0458-478-0121-D
© ANDREAS STIHL AG & Co. KG 2022
0458-478-0121-D. VA0.G22.
Printed on chlorine-free paper Printing inks contain vegetable oils, paper can be recycled.
Original Instruction Manual 0000000666_022_GB

STIHL recommends the use of original STIHL
replacement parts, rotor blades and accessories.
They are specifically designed to match the prod‐
uct and meet your performance requirements.
The deflector on this power tool cannot protect
the operator from all objects thrown by the blade
(stones, glass, wire, etc.). Ejected objects may
also ricochet and strike the operator.
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.
3.1 Clothing and Equipment
Wear proper protective clothing and equipment.
Clothing must be sturdy but allow
complete freedom of movement.
Wear close-fitting clothes such as a
boiler suit, not a loose jacket.
Do not wear clothing which could become trap‐
ped in wood, brush or moving parts of the
machine. Do not wear a scarf, necktie or jewelry.
Tie up and secure long hair above your should‐
ers.
Wear safety boots with steel toe caps
and non-slip soles.
WARNING
To reduce the risk of eye injuries,
wear close-fitting safety glasses in
accordance with European Standard
EN 166. Make sure the safety
glasses are a snug fit.
Wear "personal" sound protection, e.g. ear
defenders.
Wear sturdy protective gloves made
of a resistant material (e. g. leather).
STIHL offers a comprehensive range of personal
protective equipment.
3.2 Transporting the machine
Always stop the engine.
Carry the power tool hanging from the shoulder
strap or properly balanced by the drive tube.
Do not touch hot parts of the machine – risk of
burn injury!
By vehicle: When transporting in a vehicle, prop‐
erly secure your machine to prevent turnover,
damage and fuel spillage.
3.3 Before starting
Check that your power tool is properly assem‐
bled and in good condition – refer to appropriate
chapters in the KombiEngine and KombiTool
user manuals:
–Rotor blades, correctly fitted, secure and in
perfect condition (clean, moves freely, not
warped)
–Inspect the deflectors for damage and wear.
Do not operate the machine with a damaged
deflector – replace damaged parts.
–Do not attempt to modify the controls or safety
devices in any way – only work with the deflec‐
tor fitted
–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"
The power tool must only be operated when it is
in good operating condition – Risk of accident!
To prepare for emergencies when using a har‐
ness: Practice setting down the machine quickly.
To avoid damage, do not throw the machine to
the ground when practicing.
3.4 Holding and Guiding the Tool
Make sure you always have a firm and secure
footing.
Always hold the unit firmly with both hands on
the handles.
3.4.1 For versions with bike handle
002BA055 KN
3 Safety Precautions and Working Techniques English
0458-478-0121-D 3

Right hand on control handle, left hand on grip
on handlebar.
3.4.2 For versions with loop handle
002BA080 KN
For versions with loop handle and loop handle
with barrier bar, left hand on the loop handle,
right hand on the control handle – even if you are
left-handed.
3.5 While Working
In the event of impending danger or in an emer‐
gency, switch off the engine immediately by mov‐
ing the slide control / stop switch/button to
0 or STOP.
To reduce the risk of injury from ejected objects,
do not allow any other persons within 5 meters of
your own position. This distance must also be
maintained in relation to objects (vehicles, win‐
dow panes) – risk of property damage!
Ensure that the gear unit and the
rotor blades are correctly attached
and aligned and avoid contact with
the rotor blades - risk of injury!
As soon as the engine starts running,
the power tool generates toxic
exhaust gas. These gases may be
odorless and invisible and may con‐
tain unburned hydrocarbons and ben‐
zene. Never run the engine indoors or
in poorly ventilated locations, even if
your model is equipped with a cata‐
lytic converter.
Arrows on the rotor blades show the direction of
rotation. The arrows on the rotor blades must
point in the same direction as the arrows on the
gear.
Make sure the idle speed setting is correct. The
rotor blades must not rotate when the engine is
idling with the throttle trigger released. Check
and correct the idle speed setting at regular inter‐
vals. If the rotor blades still rotate, have your
dealer check your machine and make proper
adjustments or repairs – see KombiEngine
instruction manual.
Never work without suitable protection for the
unit and KombiTool - risk of injury from thrown
objects!
Take special care in slippery conditions – damp,
snow, ice, on slopes or uneven ground!
Watch out for obstacles: tree stumps, roots – risk
of tripping or stumbling!
Check the work site – rocks, metal objects etc.
may be caught up and ejected – risk of injury! -
and may damage the rotor blades.
To avoid the risk of electrocution,
never use your power tool in areas
where electrical lines are laid on the
surface or buried just below the sur‐
face.Striking and damaging such
lines with the KombiTool could cause
serious or even fatal injury.
Make sure you always have a firm and secure
footing.
Operate your power tool at normal walking pace
only.
Take particular care when working close to fen‐
ces, walls, stones, roots, trees and areas of
dense growth. The rotor blades may snag – risk
of injury!
Be extremely cautious when pulling the power
tool towards you because of the risk of injury
from contact with the rotating blades.
Be particularly alert and cautious when wearing
ear protection because your ability to hear warn‐
ings (shouts, alarms, etc.) is impaired.
English 3 Safety Precautions and Working Techniques
4 0458-478-0121-D

Take breaks when you start getting tired or feel‐
ing fatigue – risk of accidents!
Work calmly and carefully – in daylight conditions
and only when visibility is good. Proceed with
caution, do not put others in danger.
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.
Do not touch the rotor blades while the engine is
running. If the rotor blades become jammed by
an object, switch off the engine immediately
before attempting to remove the object – there is
otherwise a risk of injury!
Opening the throttle while the rotor blades are
blocked increases the load and reduces engine
speed. The clutch then slips continuously and
this causes overheating and damage to impor‐
tant components (e.g. clutch, polymer housing
components) – and this can increase the risk of
injury from the rotor blades running while the
engine is idling.
Check the rotor blades at regular short intervals
during operation or immediately if there is a
noticeable change in operating behavior:
–Shut off the engine, hold the machine
securely.
–Check condition and secure fitting; watch out
for cracks
–Replace damaged rotor blades immediately,
even if they have only superficial cracks.
Clean the rotor blades and deflector at regular
intervals during operation.
–Shut off the engine
–Use gloves
–Remove grass, weeds, clumps of soil, etc.
Switch off the engine before changing the rotor
blades – Risk of injury!
Do not continue using or attempt to repair dam‐
aged or cracked rotor blades by welding or
straightening – risk of deformation (out of bal‐
ance).
Particles or pieces may come off and hit the
operator or a bystander at a high speed – risk of
most severe injuries!
3.6 After Finishing Work
After finishing work or before leaving the power
tool unattended: Shut off the engine.
After finishing work, clean dirt, soil and plant resi‐
due off the KombiTool – wear gloves to reduce
the risk of injury!
Do not use any grease solvents when cleaning.
After a thorough cleaning, wet the surface of
metal KombiTools with an anticorrosive agent.
3.7 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 author‐
ized 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
engine before carrying out any maintenance or
repairs or cleaning the machine.
3 Safety Precautions and Working Techniques English
0458-478-0121-D 5

4 Using the Unit
4.1 General Information
0000097751_001
4.2 Preparation
► Starting the engine
► Fitting the harness
4.3 Working techniques
You can work with your cultivator in the for‐
ward (1) and backward (2) directions, from left to
right or vice versa (3) or in a circular motion.
Choose the best method to suit your purpose,
i.e. this depends on the shape and size of the
area and soil conditions.
Working in an alternating backwards and for‐
wards motion is particularly suitable for loosening
packed soil.
WARNUNG
The cultivator moves away from the user during
work. Always ensure a secure footing to be able
to control the cultivator.
4.4 Example applications
►Breaking up soil
A few preparations are necessary before you
begin to break up soil which has been previously
tilled (e.g. last year's vegetable or flower gar‐
den). First clear away surface weeds and
remains of other plants as well as hard objects
like rocks, stones, bottles, pieces of wood etc.
which can be thrown up by the rotor blades.
Hold the cultivator firmly with both hands and till
only a small area at a time to the required depth.
Finish tilling the area by guiding the cultivator in
such a way that you leave no footprints. Use a
rake to level off the entire area.
►Loosening soil around plants
Only loosen the surface soil around plants. Avoid
going too deep as this could damage the shallow
roots of some plants.
To avoid any damage to the cultivator or trees,
be wary not to catch the blades on the large
roots of trees.
►Working in soil improvers
English 4 Using the Unit
6 0458-478-0121-D

The cultivator can be used for mulching with
loam, compost, leaves, other organic material or
fertilizers.
Prepare the area by removing all old roots, the
remains of large plants and hard objects (stones
etc.). Spread the mulch evenly on the ground.
Work in the mulch with a circular or back and
forth motion.
Finish off by leveling the area with a rake.
►Trenching or furrowing
Walk slowly backward and pull the cultivator to
create the furrow required. Repeat as necessary
to obtain deeper furrows.
4.4.1 Cleaning the Rotor Blades
Parts of plants, e.g. roots, can become tightly
wrapped around or between the rotor blades dur‐
ing operation. To clean the rotor blades:
–Switch off the cultivator and wait until the
blades come to a complete standstill.
–Pull the hitch pins out of the axle
–Pull the rotor blades off the shaft
–Remove pieces of roots, plants and soil
WARNUNG
Rotor blades are sharp edged. Wear gloves
while cleaning.
5 Approved KombiEngines
5.1 KombiEngines
Only use KombiEngines supplied or explicitly
approved by STIHL for use with the attachment.
This KombiTool may be operated only in combi‐
nation with the following KombiEngines:
STIHL KM 55 R, KM 56 R, KM 85 R, KM 90,
KM 90 R, KM 94 R, KM 100, KM 100 R, KM 110,
KM 110 R, KM 130, KM 130 R, KMA 130 R,
KMA 135 R
WARNING
Loop-handled machines must be equipped with
a barrier bar.
5.2 Brushcutters with split boom
The KombiTool can also be fitted to STIHL
brushcutters with a split boom (T-models) (basic
power tools).
This KombiTool can therefore also be used on
the following machine:
STIHL FR 130 T
WARNING
Refer to the user manual of the power tool for
use of the barrier bar.
6 Assembling the Unit
413BA014 KN
► Pull the protective caps off the ends of the
shaft and keep them in a safe place for later
use – see "Storing the Machine"
002BA248 KN
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.
6.1 Mounting the guard
5 Approved KombiEngines English
0458-478-0121-D 7

► Slide the deflector (1) onto the drive tube (2)
until distance (a) is 100 mm
► Line up the deflector (1) so that it is vertical
and the fixing lug (arrow) on the drive tube
points up
► Tighten the clamp screw (3) moderately
NOTICE
Check that the deflector is secure – it must not
be possible to rotate it on the drive tube.
6.2 Mounting the gearbox
► Loosen the clamp screws (4)
► Push the gearbox (5) onto the drive tube (2),
turn the gearbox back and forth as necessary
0000097752_001
3
1
4
2
5
6
7
► align the gear unit (1) on the shaft (2) so that
the shaft (3) is below the shaft and the locating
pin (4) is pointing upwards
► the upper clamping screw (5) must be aligned
like the clamping screw (7) on the guard
► tighten down the clamp screws firmly
NOTICE
It must not be possible to rotate the gearbox on
the drive tube.
0000098185_001
1
2
the axle (1) must be located below the shaft (2).
The arrows on the gear unit indicate the direction
of rotation
WARNUNG
An incorrectly mounted and aligned
gearbox can cause the rotor blades to
rotate in the wrong direction.
Ensure that the gearbox is properly aligned and
that the cultivator moves away from the user dur‐
ing operation.
6.3 Mounting the Rotor Blades
Take care not to lose the two washers on the
gearbox output shaft.
► Arrange the blades in the order they will be fit‐
ted on the shaft, noting the following points:
Left-hand and right-hand rotor blades are differ‐
ent. The direction of rotation is marked with
arrows on the gearbox and rotor blades.
► rotate the inner right-hand rotor blade (7) on
the shaft until it can be pushed into position –
check the direction of rotation again - arrows -
English 6 Assembling the Unit
8 0458-478-0121-D

The hub of the inner rotor blade is larger than
that of the outer blade.
► rotate the outer right-hand rotor blade (8) on
the shaft until it can be pushed into position –
check the direction of rotation again - arrows
► Insert and engage the hitch pin (9) in the hole
in the shaft – fold the hitch pin flat against the
rotor blade
► Use the same procedure to mount the rotor
blades on the left-hand side
WARNUNG
The rotor blades are sharp-edged. Wear gloves
when mounting the rotor blades
7 Mounting the KombiTool
1
002BA326 KN
2
► Push the lug (1) on the drive tube into the
slot (2) in the coupling sleeve as far as stop.
3
002BA327 KN
4
When correctly installed, the red line (3) (arrow
point) must be flush with the end of the coupling
sleeve.
► Tighten down the star knob (4) firmly.
7.1 Removing the KombiTool
► Reverse the above sequence to remove the
drive tube.
8 Fitting the Harness
The type and style of the harness, carrying ring
and carabiner (spring hook) depend on the mar‐
ket.
8.1 Shoulder Strap
1
002BA374 KN
2
► Put on the shoulder strap (1).
► Adjust the length of the strap so that the cara‐
biner (2) is about a hand’s width below your
right hip.
8.2 Full harness
1
002BA375 KN
2
► Put on the full harness (1).
7 Mounting the KombiTool English
0458-478-0121-D 9

► Adjust the length of the strap so that the cara‐
biner (2) is about a hand’s width below your
right hip.
8.3 Attaching Machine to Harness
1
002BA308 KN
2
1
2
► Attach the carabiner (1) to the carrying ring (2)
on the drive tube – hold the carrying ring
steady.
8.4 Disconnecting Machine from
Harness
1
002BA310 KN
2
1
2
► Press down the bar on the carabiner (1) and
pull the carrying ring (2) out of the carabiner.
8.5 Throwing Off the Machine
WARNING
The machine must be quickly thrown off in the
event of imminent danger. Practice removing and
putting down the machine as you would in an
emergency. To avoid damage, do not throw the
machine to the ground when practicing.
Practice quickly detaching the power tool from
the carabiner as described under "Disconnecting
Machine from Harness".
If you are using a shoulder strap: Practice slip‐
ping the strap off your shoulder.
If you are using a full harness: Practice quickly
opening the locking plate and slipping the har‐
ness straps off your shoulders.
9 Starting / Stopping the
Engine
9.1 Starting the Engine
Always follow the operating instructions for the
KombiEngine and basic power tool.
504BA018 KN
► Place the machine on the ground: It must rest
securely on the machine support. Rest the
deflector end of the drive tube on a raised sup‐
port (e.g. mound, log, brick).
To reduce the risk of accidents, check that the
rotor blades are not touching the ground of any
other obstacles.
► Make sure you have a firm footing, either
standing, stooping or kneeling.
► Hold 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.
English 9 Starting / Stopping the Engine
10 0458-478-0121-D