Bosch AKE 35 S manual

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  • Brand: Bosch
  • Product: Chain saw
  • Model/name: AKE 35 S
  • Filetype: PDF
  • Available languages: Dutch, English, German, French, Spanish, Italian, Swedish, Portuguese, Danish, Norwegian, Finnish, Turkish

Table of Contents

Page: 17
English - 1
Explanation of symbols:
Read instruction manual.
Do not expose to rain.
Remove the plug from the socket or
mains immediately before carrying
out any adjustments, servicing or
maintenance or if the cable is dam-
aged or cut.
Obtain and wear eye and ear pro-
tection at all times while operating
the power tool.
The kick back brake and the run
down brake stop the chain saw
within short time.
General Power Tool Safety Warnings
Read all safety warnings and all
instructions. Failure to follow the
warnings and instructions may result in electric
shock, fire and/or serious injury.
Save all warnings and instructions for future ref-
The term “power tool” in the warnings refers to your
mains-operated (corded) power tool or battery-oper-
ated (cordless) power tool.
Work area safety
■ Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
■ Do not operate power tools in explosive at-
mospheres, such as in the presence of flam-
mable liquids, gases or dust. Power tools cre-
ate sparks which may ignite the dust or fumes.
■ Keep children and bystanders away while op-
erating a power tool. Distractions can cause you
to lose control.
Electrical safety
■ Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
■ Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of elec-
tric shock if your body is earthed or grounded.
■ Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
■ Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp
edges and moving parts. Damaged or entan-
gled cords increase the risk of electric shock.
■ When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use
of a cord suitable for outdoor use reduces the risk
of electric shock.
■ If operating a power tool in a damp location is
unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD re-
duces the risk of electric shock.
Personal safety
■ Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or
under the influence of drugs, alcohol or med-
ication. A moment of inattention while operating
power tools may result in serious personal injury.
■ Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate condi-
tions will reduce personal injuries.
■ Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools
with your finger on the switch or energising power
tools that have the switch on invites accidents.
■ Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
result in personal injury.
■ Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
■ Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-
lery or long hair can be caught in moving parts.
■ If devices are provided for the connection of
dust extraction and collection facilities, en-
sure these are connected and properly used.
Use of dust collection can reduce dust-related
Power tool use and care
■ Do not force the power tool. Use the correct
power tool for your application. The correct
power tool will do the job better and safer at the
rate for which it was designed.
Safety Notes
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English - 2
■ Do not use the power tool if the switch does
not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
■ Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing ac-
cessories, or storing power tools. Such pre-
ventive safety measures reduce the risk of start-
ing the power tool accidentally.
■ Store idle power tools out of the reach of chil-
dren and do not allow persons unfamiliar with
the power tool or these instructions to oper-
ate the power tool. Power tools are dangerous in
the hands of untrained users.
■ Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many acci-
dents are caused by poorly maintained power
■ Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
■ Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the power
tool for operations different from those intended
could result in a hazardous situation.
■ Have your power tool serviced by a qualified
repair person using only identical replace-
ment parts. This will ensure that the safety of the
power tool is maintained.
Chain Saw Safety Warnings:
■ Keep all parts of the body away from the saw
chain when the motor is operating. Before you
start the chain saw, make sure the saw chain
is not contacting anything. A moment of inat-
tention while operating chain saws may cause en-
tanglement of your clothing or body with the saw
■ Hold the power tool by insulated gripping sur-
faces only, because the saw chain may con-
tact hidden wiring or its own cord. Saw chains
contacting a “live” wire may make exposed metal
parts of the power tool “live” and could give the
operator an electric shock.
■ Always hold the chain saw with your right
hand on the rear handle and your left hand on
the front handle. Holding the chain saw with a
reversed hand configuration increases the risk of
personal injury and should never be done.
■ Wear safety glasses and hearing protection.
Further protective equipment for head, hand,
legs and feet is recommend. Adequate protec-
tive clothing will reduce personal injury by flying
debris or accidental contact with saw chain.
■ Do not operate a chain saw in a tree. Operation
of a chain saw while up in a tree may result in per-
sonal injury.
■ Always keep proper footing and operate the
chain saw only when standing on fixed, se-
cure and level surface. Slippery or unstable sur-
faces such as ladders may cause a loss of bal-
ance or control of the chain saw.
■ When cutting a limb that is under tension be
alert for spring back. When the tension in the
wood fibres is released the spring loaded limb
may strike the operator and/or throw the chain
saw out of control.
■ Use extreme caution when cutting brush and
saplings. The slender material may catch the
saw chain and be whipped toward you or pull you
off balance.
■ Carry the chain saw by the front handle with
the chain saw switched off and away from your
body. When transporting or storing the chain
saw always fit the guide bar cover. Proper han-
dling of the chain saw will reduce the likelihood of
accidental contact with the moving saw chain.
■ Follow instructions for lubricating, chain ten-
sioning and changing accessories. Improperly
tensioned or lubricated chain may either break or
increase the chance for kickback.
■ Keep handles dry, clean, and free from oil and
grease. Greasy, oily handles are slippery causing
loss of control.
■ Cut wood only. Don’t use chain saw for pur-
poses not intended. For example: do not use
chain saw for cutting plastic, masonry or non-
wood building materials. Use of the chain saw
for operations different than intended could result
in a hazardous situation.
Causes and Operator Prevention of Kickback:
– Kickback may occur when the nose or tip of the
guide bar touches an object, or when the wood
closes in and pinches the saw chain in the cut.
– Tip contact in some cases may cause a sudden
reverse reaction, kicking the guide bar up and
back towards the operator.
– Pinching the saw chain along the top of the guide
bar may push the guide bar rapidly back towards
the operator.
– Either of these reactions may cause you to lose
control of the saw which could result in serious
personal injury. Do not rely exclusively upon the
safety devices built into your saw. As a chain saw
user, you should take several steps to keep your
cutting jobs free from accident or injury.
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English - 3
Kickback is the result of tool misuse and/or incorrect
operating procedures or conditions and can be
avoided by taking proper precautions as given be-
■ Maintain a firm grip, with thumbs and fingers
encircling the chain saw handles, with both
hands on the saw and position your body and
arm to allow you to resist kickback forces.
Kickback forces can be controlled by the opera-
tor, if proper precautions are taken. Do not let go
of the chain saw.
■ Do not over reach and do not cut above shoul-
der height. This helps prevent unintended tip
contact and enables better control of the chain
saw in unexpected situations.
■ Only use replacement bars and chains speci-
fied by the manufacturer. Incorrect replacement
bars and chains may cause chain breakage and/
or kickback.
■ Follow the manufacturer’s sharpening and
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead to in-
creased kickback.
Additional safety warnings:
■ It is recommended that the first time user should
have practical instruction in the use of the chain-
saw and the protective equipment from an expe-
rienced operator and that the initial practice
should be cutting logs on a saw horse or cradle.
■ This appliance is not intended for used by per-
sons (including children) with reduced physical,
sensory or mental capabilities, or lack of experi-
ence and knowledge, unless they have been
given supervision or instruction concerning use of
the appliance by a person responsible for their
Children should be supervised to ensure that they
do not play with the appliance.
■ Children and juveniles, except above age 16,
under supervision and for educational pur-
poses, must not operate the chain saw, nor
should persons unfamiliar with the saw or its
handling (when borrowing). Ensure operation
manual is with the saw. Persons unfit or tired
must not operate the chain saw.
The chain saw is intended for sawing of trees, tree
trunks, branches, wooden beams, planks, etc. Cuts
can be sawed with or across the grain. This product
is not suitable for sawing mineral materials.
This manual gives instructions on the correct as-
sembly and safe use of your chain saw. It is impor-
tant that you read these instructions carefully.
Technical data
Chain saw AKE 30 S AKE 35 S AKE 40 S
Part number (typ) 3 600 H34 4.. 3 600 H34 5.. 3 600 H34 6..
Rated power [W] 1800 1800 1800
Chain speed (no load) [m/s] 9 9 9
Chain bar length [cm] 30 35 40
Tool-less chain tensioning (SDS) ● ● ●
Nose sprocket – ● ●
Kickback Brake ● ● ●
Chain type 3/8" - 90 3/8" - 90 3/8" - 90
Drive link thickness [mm] 1.1 (0.043") 1.1 (0.043") 1.1 (0.043")
Amount of drive links 45 52 57
Oil reservoir capacity [ml] 200 200 200
Automatic oiler ● ● ●
Metal gripping teeth ● ● ●
Weight without mains cable. approx. ** [kg] 3.9 4.0 4.1
Protection class / II / II / II
**measured with chain bar and chain
Note: Please observe the order number of your machine. The trade names of individual machines can vary.
Inrush currents cause short-time voltage drops. Under unfavourable power supply conditions, other equipment may be af-
fected. If the system impedance of the power supply is lower than 0.25 Ohm, disturbances are unlikely to occur.
Intended Use Introduction
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English - 4
Carefully remove the machine from its packaging
and check for complete contents:
– Chain saw
– Cover plate
– Chain
– Chain bar
– Oil filler cap
– Chain guard
– Operating instructions
When parts are missing or damaged, please contact your
1 Rear handle
2 On/Off switch
3 Safety lock
4 Oil filler cap
5 Activation lever for kickback brake (hand guard)
6 Front handle
7 Nose sprocket (AKE 35/40 S only)
8 Chain guard
9 Chain
10 Chain bar
11 Gripping teeth
12 Locking knob
13 Cover plate
14 Chain tensioning knob
15 Power supply cable*
16 Mains plug**
17 Serial Number
18 Chain catch bolt
19 Drive sprocket
20 Fastening bolt
21 Symbol for rotation and cutting direction
22 Oil outlet
23 Guide fins for chain bar
24 Chain tensioning peg
25 Oil-level indicator
26 Ventilation slots
**Country specific
*Not all of the accessories illustrated or described are
included as standard delivery.
Electrical Safety
Your machine is double insulated for safety and re-
quires no earth connection. The operating voltage is
230 V AC, 50 Hz (for non-EU countries 220 V,
240 V as applicable). Only use approved extension
cables. Extension cords/leads should only be used
if they comply with H07-F types or IEC
(60227 IEC 53).
If you want to use an extension cable when operat-
ing your product, only the following cable dimen-
sions should be used:
– 1.0 mm2: max length 40 m
– 1.5 mm2: max length 60 m
– 2.5 mm2: max length 100 m
It is recommended for increased electrical safety to
use a Residual Current Device (RCD) with a tripping
current of not more than 30 mA. Always check your
RCD every time you use it.
For products not sold in GB:
WARNING: For safety, it is essential that the mains
plug 16 attached to the machine is fitted to the power
supply cable 15 as shown.
The couplings of connection leads must be pro-
tected against splashes and the coupling sockets on
the leads must be made of rubber or coated with rub-
Fixing means for the connection leads must be used.
The connection lead must be inspected for signs of
damage at regular intervals and may only be used if
in perfect condition.
If the supply cord is damaged, it must be replaced by
a Bosch Service Centre.
Products sold in GB only: Your chain saw is fitted
with an approved 13 A (BS 1363/A) electric plug and
is protected by a 13 A fuse (ASTA Approved to
BS 1362).
If the fitted plug is not suitable for your socket out-
lets, it should be cut off and an appropriate plug fitted
in its place by an authorized customer service agent.
The severed plug must be disposed of to avoid a
possible shock hazard and should never be inserted
into a 13 A socket elsewhere.
Delivered Items
Product Features
For Your Safety
Warning! Switch off, remove plug from mains
before adjusting cleaning or if the cable is cut,
damaged or entangled.
Caution! Do not touch rotating chain.
Do not operate chain saw near other people,
children or animals. Do not operate chain saw
after drinking alcohol or under the influence of
intoxicating drugs or medication.
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English - 5
Do not connect the chain saw to mains be-
fore it is completely assembled.
Always use gloves when handling the chain.
Chain and chain bar Assembly
1. Unpack all parts carefully.
2. Place the chain saw on any suitable flat surface.
3. Slide the chain 9 in the slot around the chain
bar 10. Ensure chain is in correct running direc-
tion by comparing with chain symbol 21.
4. Fit the chain onto the drive sprocket 19 and guide
the chain bar 10, so that the fastening bolt 20 and
the two guide fins 23 fit into the keyway of the
chain bar 10, and that the chain tensioning
peg 24 fits into the respective hole of the chain
bar 10. If necessary, turn the tensioning knob 14
to bring tensioning peg 24 in alignment with the
hole in the chain bar 10. Check if all parts are
seated properly and hold chain and chain bar in a
level position. (see figure )
5. Turn the tensioning knob 14 until all the slack is
taken up in the chain.
6. Fit cover plate 13. (see figure )
7. Handtighten locking knob 12 on fastening bolt 20.
(see figure )
If too tight then the chain can lose tension
during use.
The locking knob must only lightly clamp
the chain bar.
Tensioning chain
Always check the chain tension before use, after the
first cuts and regularly during use, approx. every
10 minutes. Upon initial operation, new chains can
lengthen considerably.
The chain life of the saw chain mainly depends upon
sufficient lubrication and correct tensioning.
Avoid tensioning the chain if it is hot, as this will
cause the chain to become overtensioned when it
cools down.
1. Place the chain saw on any suitable flat surface.
2. Check if the chain links are correctly located in the
slot around the chain bar 10 and drive sprocket 19.
3. Loosen locking knob 12 until it is just holding
chain bar in position (do not remove!).
4. Turn tensioning knob 14 clockwise until the cor-
rect chain tension is reached. The turning action
forces the chain bar 10 forward via the chain ten-
sioning peg 24.
5. The correct chain tension is reached when the
chain 9 can be raised approx. 5 – 10 mm from the
chain bar in the centre. This should be done by
using one hand to raise the chain against the
weight of the machine.
6. If the chain 9 is overtensioned, slightly turn the
tensioning knob 14 anti-clockwise and re-check
chain tension. Re-adjust chain tension as de-
scribed if necessary.
7. Handtighten locking knob 12 on fastening bolt 20.
If too tight then the chain can lose tension
during use.
The locking knob must only lightly clamp
the chain bar.
Important: The chain saw is not supplied
filled with oil. It is essential to fill with oil
before use. Never operate the chain saw
without chain oil or at an empty oil tank
level, as this will result in extensive dam-
age to the product.
Chain life and cutting capacity depend on optimum
lubrication. Therefore, the chain is automatically
oiled during operation via the oil outlet 22.
Filling oil tank:
– Set chain saw on any suitable surface with oil filler
cap 4 facing upward.
– Clean area around the oil filler cap 4 with cloth,
unscrew cap.
– Add Bosch biodegradable chain saw oil until res-
ervoir is full.
– Avoid dirt or debris entering oil tank, refit oil filler
cap 4 and tighten.
Important: To allow venting of the oil res-
ervoir,small breather channels are pro-
vided between the oil filler cap, to prevent
leakage ensure machine is left in a hori-
zontal position (oil filler cap 4 uppermost)
when not in use.
It is important to use only the recommended bi-
odegradable oil to avoid damage to the chain
saw. Never use recycled/old oil. Use of non ap-
proved oil will invalidate the warranty.
Observe the correct mains voltage! The voltage
of the power source must agree with the value given
on the nameplate of the machine. Machines desig-
nated for 230 V can also be operated with 220 V.
Switching On and Off
Hold chain saw as described in “Cutting”.
For switching on the machine, press the lock-off
button 3, then fully press the On/Off switch 2 and
hold in this position. The lock-off button 3 can now
be released.
Assembly/Tensioning Chain
A1 A2 A3
A1 A2 A3 C
Starting and Stopping
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English - 6
For switching off, release the On/Off switch 2.
Do not stop chain saw after sawing by activating
the front hand guard (kickback brake).
The kickback brake is a safety mechanism acti-
vated through the front hand guard 5, when kickback
occurs. Chain stops immediately.
The following function check should be carried out at
regular intervals. Push front hand guard 5 forward
(position ➋) and start the chain saw. The chain must
not start. To deactivate the kickback brake, release
On/Off switch 2 and pull hand guard 5 backwards
(position ➊).
Before Cutting
Before and periodically during cutting check as fol-
– Is the chain saw in a fail-safe condition?
– Is the oil reservoir filled? Check oil level
gauge 25 prior to starting and regularly during op-
eration. Refill oil when oil level is low. The oil tank
filling will last approx. 15 minutes, depending on
sawing intensity and stops.
– Is the chain tension in order and is the chain
sharp? Check chain tension every 10 minutes
during operation. Upon initial operation, new
chains can lengthen considerably. The condition
of the chain influences the cutting performance.
Only a sharp chain protects from overload.
– Is the kickback brake deactivated and its function
– Are you wearing the necessary protective equip-
ment? Wear safety glasses and hearing protec-
tion. Further protective equipment for head, hand,
legs and feet is recommend. Adequate protective
clothing will reduce personal injury by flying de-
bris or accidental contact with saw chain.
Kickback is the sudden backward/upward motion of
the chain saw, occuring when the chain (at the tip of
the chain bar) comes in contact with a log or wood,
or when the chain becomes jammed.
When kickback occurs the chainsaw reacts unpred-
icably and can cause severe injuries to the operator
or bystanders.
Particular attention must be given when sawing
sidewards, slanted or during length cuts, as the grip-
ping teeth 11 usually can not be applied.
To avoid kickback:
– Saw with the chain bar at a flat angle.
– Never work with a loose, widely stretched or the
heavily worn out chain.
– Ensure chain is sharpened correctly.
– Never saw above shoulder height.
– Never work with the tip of the chain bar.
– Always the hold chain saw firmly with both hands.
– Always use a Bosch low-kickback chain.
– Apply the metal gripping teeth 11 for leverage.
– Ensure correct chain tension.
General Behavior
Always hold the chain saw firmly with both
hands. Front grip with the left hand and rear grip with
the right hand. Fully grip both handles at all times
during operation. Never operate chain saw using
only one hand. Ensure power cord is located to the
rear, away from the chain and wood and so pos-
tioned that it will not be caught on branches or the
like during cutting.
Use the chain saw only with secure footing. Hold
the chain saw at the right-hand side of your body.
The chain must be running at full speed before it
makes contact with the wood. Use the metal gripping
teeth 11 to secure the saw onto the wood before
starting to cut. Use the gripping teeth as a leverage
point “X” while cutting.
Reset the gripping teeth at a lower point when saw-
ing thicker logs by pulling the chain saw slightly
backwards until the gripping teeth release, and repo-
sition at lower level to continue sawing. Do not re-
move the saw completely from the wood.
Do not force the chain while cutting, let the chain do
the work, using the gripping teeth 11 to apply mini-
mal leverage pressure.
Do not operate the chain saw with arms fully ex-
tended or attempt to saw areas which are difficult to
reach, or on a ladder. Never use the chain saw
above shoulder height.
Sawing is optimized when the chain speed remains
steady during cutting.
Beware when reaching the end of the cut. The
weight of the saw may change unexpectedly as it
cuts free from the wood. Accidents can occur to the
legs and feet.
Always remove the saw from a wood cut while the
saw is running.
Cutting Logs
Observe the following safety instructions:
Support logs so that the face sides at the cut
do not close in against each other, which would re-
sult in the chain being jammed or pinched.
Position and set short logs safely prior to sawing.
Kickback Brake
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English - 7
Saw only wood or wooden objects. When sawing, al-
ways take care to avoid hitting stones, nails, etc., as
these could be thrown up or cause damage to the
chain or serious injury to the operator or bystanders.
Keep a running saw clear of wire fencing or the
Use of the saw to thin out branches or bushes is not
Length cuts must be carried out with care, as lever-
age with the gripping teeth 11 is not possible. Saw at
a flat angle to avoid kickback.
When working on a slope, operate above or to the
side of the trunk or laying tree.
Be careful not to trip over tree stumps, branches,
roots, etc.
Cutting Wood under Tension
There is a high risk of accidents when sawing wood,
branch or trees under tension. Be extremely careful.
Leave saw jobs like these to professionals.
When sawing logs supported on both ends, start the
cut from above (Y) about 1/3 of the diameter into the
log and then finish the cut (Z) from below, in order to
avoid splitting of the log or jamming of the saw.
Avoid contact of the chain saw with the ground.
When sawing logs supported on only one end, start
the cut from below (Y) about 1/3 of the diameter into
the log and finish the cut from above (Z), in order to
avoid log splitting or jamming of the chain saw.
Felling Trees
Always wear hard hat to protect head
against falling branches.
The chain saw can only be used to fell trees
smaller in diameter than the length of the chain
➊ Secure work area. Ensure no persons or ani-
mals are in the vicinity of the falling tree.
Never attempt to free a jammed saw with the mo-
tor running. Use wooden wedges to free chain
and chain bar.
When cutting and felling operations are being per-
formed by two or more persons, at the same time,
the felling operations should be separated from the
cutting operation by a distance of at least twice the
height of the tree being felled. Trees should not be
felled in a manner that would endanger any person,
strike any utility line or cause any property damage.
If the tree does make contact with any utility line, the
company should be notified immediately.
The chain saw operator should keep on the uphill
side of the terrain as the tree is likely to roll or slide
downhill after it is felled.
➋ An escape path should be planned and cleared
as necessary before cuts are started. The escape
path should extend back and diagonally to the rear
of the expected line of fall.
➌ Before felling is started, consider the natural lean
of the tree, the location of larger branches and the
wind direction to judge which way the tree will fall.
Remove dirt, stones, loose bark, nails staples, and
wire from the tree.
Notching Undercut: Make the notch (X – W)
1/3 the diameter of the tree, perpendicular to the di-
rection of falls as Make the lower horizontal notching
cut first. This will help to avoid pinching either the
saw chain or the guide bar when the second notch is
being made.
Felling Back Cut: Make the felling back cut (Y) at
least 50 mm higher than the horizontal notching cut.
Keep the felling back cut parallel to the horizontal
notching cut. Make the felling back cut so enough
wood is left to act as a hinge. The hinge wood keeps
the tree from twisting and falling in the wrong direc-
tion. Do not cut through the hinge.
As the felling gets close to the hinge the tree should
begin to fall. If there is any chance that the tree may
not fall in desired direction or it may rock back and
bind the saw chain, stop cutting before the felling
back cut is complete and use wedges of wood, plas-
tic or aluminium to open the cut and drop the tree
along the desired line of fall.
When the tree begins to fall remove the chain saw
from the cut, stop the motor, put the chain saw down,
then use the retreat path planned. Be alert for over-
head limbs falling and watch your footing.
To complete the felling operation, drive a wedge (Z)
into the horizontal cut.
Beware of falling branches when the tree starts to
Limbing a Tree
Limbing is removing the branches from a fallen
tree. When limbing leave larger lower limbs to sup-
port the log off the ground. Remove the small limbs
in one cut as illustrated. Branches under tension
should be cut from the bottom up to avoid binding
the chain saw.
Bucking a Log
Bucking is cutting a log into lengths. It is impor-
tant to make sure your footing is firm and your weight
is evenly distributed on both feet. When possible, the
log should be raised and supported by the use of
limbs, logs or chocks. Follow the simple directions
for easy cutting.
When the log is supported along its entire length as
illustrated, it is cut from the top (overbuck).
When the log is supported on one end, as illus-
trated, cut 1/3 the diameter from the underside (un-
derbuck). Then make the finished cut by overbuck-
ing to meet the first cut.
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When the log is supported on both ends, as illus-
trated, cut 1/3 the diameter from the top overbuck.
Then make the finished cut by underbucking the
lower 2/3 to meet the first cut.
When bucking on a slope always stand on the
uphill side of the log, as illustrated. When "cutting
through”, to maintain complete control release the
cutting pressure near the end of the cut without re-
laxing your grip on the chain saw handles. Don’t let
the chain contact the ground. After completing the
cut, wait for the saw chain to stop before you move
the chain saw. Always stop the motor before moving
from tree to tree.
Before any work on the machine itself, pull
the mains plug from the socket.
Note: To ensure long and reliable service, carry out
the following maintenance regularly.
Regularly check for obvious defects such as loose,
dislodged or damaged chain and chain bar, loose
fixings and worn or damaged components.
Check that covers and guards are undamaged and
correctly fitted. Carry out necessary maintenance or
repairs before using the chain saw.
If the chain saw should happen to fail despite the
care taken in manufacturing and testing, repair
should be carried out by an authorized customer
service agent.
Before returning, ensure all oil in the oil tank has
been emptied.
For all correspondence and spare parts orders, al-
ways include the 10-digit part number (TYP) from
the nameplate of the machine!
Fit the chain and chain bar as described in “Assem-
bly and Tensioning Chain”.
The circular groove of the chain bar will wear partic-
ularly on the lower edge with time. When replacing
the chain turn the chain bar 180° to allow even wear,
thus extending chain bar life.
Check drive sprocket 19. If it is worn out or damaged
due to strain, have it exchanged by an authorized
Bosch service agent.
Have your chain sharpened professionally at your
Bosch approved service agent or sharpen the chain
yourself using the Bosch sharpening kit or a Dremel
power tool with the appropriate grinder (1453), both
available at your Bosch approved service agent. Fol-
low the sharpening instructions supplied with the
sharpening kit.
Proper functioning of the automatic oiler can be
checked by running the chain saw and pointing the
tip of the chain bar towards a piece of cardboard or
paper on the ground. Caution: Do not touch the
ground with the chain. Ensure safety clearance of
20 cm. If an increasing oil pattern developes, the au-
tomatic oiler is operating fine. If there is no oil pat-
tern, despite a full oil reservoir, see “Fault Finding” or
contact your Bosch approved service agent.
Chain and Chain bar
AKE 30 S.......................................... F 016 800 259
AKE 35 S.......................................... F 016 800 260
AKE 40 S.......................................... F 016 800 261
AKE 30 S.......................................... F 016 800 256
AKE 35 S.......................................... F 016 800 257
AKE 40 S.......................................... F 016 800 258
Chain sharpening/cleaning kit ......... F 016 800 262
Chain oil 1 litre ................................. 2 607 000 181
Clean the moulded plastic housing of the chain saw
using a soft brush and clean cloth. Do not use water,
solvents or polishes. Remove all debris, especially
from the motor cooling vents 26.
Remove and brush clean the cover plate 13, chain
and chain bar after 1 to 3 hours of use.
Clean the area under the cover plate 13, the drive
sprocket 19 and chain bar assembly using a soft
brush. Clean oil outlet 22 with a clean cloth.
If the chain saw is to be stored for a longer period of
time, clean chain and chain bar.
Store in a secure, dry place out of the reach of chil-
dren. Do not place other objects on the chain saw.
To prevent leakage ensure machine is left in a hori-
zontal position (oil filler cap 4 uppermost).
When storing machine in original packaging the oil
tank must be completely emptied.
Replacing/Changing Chain and
Chain Bar
Sharpening Chain
Checking the Automatic Oiler
F 016 L70 Seite 8 Freitag, 12. Februar 2010 11:19 11
25 • F 016 L70 540 • 10.02
Page: 25
English - 9
The following table gives checks and actions that you can perform if your machine does not operate correctly.
If these do not identify/remedy the problem, contact your service agent.
Warning: Switch off and remove plug from mains before investigating fault.
Power tools, accessories and packaging should be
sorted for environmental-friendly recycling.
Only for EC countries:
Do not dispose of power tools into
household waste!
According to the European Directive
2002/96/EC on waste electrical and
electronic equipment and its incorpo-
ration into national law, products that
are no longer suitable for use must be separately
collected and sent for recovery in an environmen-
tally-friendly manner.
Our after-sales service responds to your questions
concerning maintenance and repair of your product
as well as spare parts. Exploded views and informa-
tion on spare parts can also be found under:
Our customer consultants answer your questions
concerning best buy, application and adjustment of
products and accessories.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
UB 9 5HJ
Fault Finding
Symptom Possible Cause Remedy
Chain saw fails to oper-
Kickback brake is activated
No power
Mains socket faulty
Extension cord damaged
Fuse faulty
Pull hand guard 5 back in position ➊
(Figure D)
Check power
Use another socket
Check cord, replace
Replace fuse
Chain saw operates
Extension cord damaged
Loose connection
Internal wiring defective
On/Off switch defective
Check cord, replace
Contact service agent
Contact service agent
Contact service agent
Dry chain No oil in reservoir
Vent in oil filler cap clogged
Oil passage clogged
Refill oil
Clean cap
Clean oil passage outlet
Kickback Brake/Run
Down Brake
Brake does not stop chain Contact service agent
Chain/chain bar over-
No oil in reservoir
Vent in oil filler cap clogged
Oil passage clogged
Chain is over tensioned
Dull chain
Refill oil
Clean cap
Clean oil passage outlet
Adjust chain tension
Sharpen chain or replace
Chain saw rips, vibrates,
does not saw properly
Chain tension too loose
Dull chain
Chain worn out
Chain teeth are facing in the wrong
Adjust chain tension
Sharpen chain or replace
Replace chain
Reassemble with chain in correct
Disposal After-Sales Service and
Customer Assistance
F 016 L70 Seite 9 Freitag, 12. Februar 2010 11:19 11
26 • F 016 L70 540 • 10.02
Page: 26
English - 10
Tel. Service: +44 (0844) 736 0109
Fax: +44 (0844) 736 0146
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: +353 (01) 4 66 67 00
Fax: +353 (01) 4 66 68 88
Australia, New Zealand and Pacific Islands
Robert Bosch Australia Pty.Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: +61 (01300) 307 044
Fax: + 61 (01300) 307 045
Inside New Zealand:
Phone: +64 (0800) 543 353
Fax: +64 (0800) 428 570
Outside AU and NZ:
Phone: +61 (03) 9541 5555
Republic of South Africa
Customer service
Hotline: +27 (011) 6 51 96 00
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Tel.: +27 (011) 4 93 93 75
Fax: +27 (011) 4 93 01 26
KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Tel.: +27 (031) 7 01 21 20
Fax: +27 (031) 7 01 24 46
Western Cape – BSC Service Centre
Democracy Way, Prosperity Park
Tel.: +27 (021) 5 51 25 77
Fax: +27 (021) 5 51 32 23
Bosch Headquarters
Midrand, Gauteng
Tel.: +27 (011) 6 51 96 00
Fax: +27 (011) 6 51 98 80
Measured sound values determined according to
Typically the A-weighted noise levels of the product
are: sound pressure level 95 dB(A); sound power
level 103 dB(A). Uncertainty K=1.2 dB.
Wear hearing protection!
Vibration total values (triax vector sum) determined
according to EN 60745:
Vibration emission value ah=4 m/s2,
Uncertainty K=1.5 m/s2.
The vibration emission level given in this information
sheet has been measured in accordance with a
standardised test given in EN 60745 and may be
used to compare one tool with another. It may be
used for a preliminary assessment of exposure.
The declared vibration emission level represents the
main applications of the tool. However if the tool is
used for different applications, with different acces-
sories or poorly maintained, the vibration emission
may differ. This may significantly increase the expo-
sure level over the total working period.
An estimation of the level of exposure to vibration
should also take into account the times when the tool
is switched off or when it is running but not actually
doing the job. This may significantly reduce the ex-
posure level over the total working period.
Identify additional safety measures to protect the op-
erator from the effects of vibration such as: maintain
the tool and the accessories, keep the hands warm,
organisation of work patterns.
We declare under our sole responsibility that the
product described under „Technical data“ is in con-
formity with the following standards or standardiza-
tion documents: EN 60745 according to the provi-
sions of the directives 2004/108/EC, 2006/42/EC,
EC Type Certification No. 2129874.01 CE by noti-
fied testing agency No. 0344, KEMA Quality B.V.
Arnhem, Netherlands.
Declaration of Conformity
F 016 L70 Seite 10 Freitag, 12. Februar 2010 11:19 11
27 • F 016 L70 540 • 10.02
Page: 27
English - 11
2000/14/EC: Guaranteed sound power level 105 dB(A).
Conformity assessment procedure according to Annex
Equipment category: 6
Technical file at: Bosch Lawn and Garden Ltd., PT-
LG/EAE, Stowmarket, Suffolk IP14 1EY, England
Leinfelden, 19.01.2010
Dr. Egbert Schneider Dr. Eckerhard Strötgen
Senior Vice President Head of Product
Engineering Certification
Robert Bosch GmbH, Power Tools Division
Subject to change without notice
F 016 L70 Seite 11 Freitag, 12. Februar 2010 11:19 11
28 • F 016 L70 540 • 10.02

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