Stihl BT 360 User manual

1BT 360
English
BA_SE_108_002_01_02.fmPrinted on chlorine-free paper.
Printing inks contain vegetable oils; paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2004 0458 441 0121. M0,25. M4. Fi. Printed in Germany
STIHl
Contents
Guide to Using this Manual .............. 2
Safety Precautions ........................... 3
Assembling the Machine .................. 8
Fuel ................................................ 10
Fueling ............................................ 12
Starting / Stopping the Engine ........ 12
Fitting the Auger ............................. 15
Operating Instructions .................... 15
Releasing a Trapped Auger ............ 16
Cleaning the Air Filter ..................... 16
Adjusting the Carburetor ................ 17
Checking the Spark Plug ................ 18
Gearbox Lubrication ....................... 19
Replacing the Starter Rope
and Rewind Spring ......................... 20
Storing the Machine ........................ 22
Maintenance Chart ......................... 23
Minimize Wear and
Avoid Damage ................................ 24
Main Parts and Controls ................. 25
Specifications ................................. 26
Maintenance and Repairs ............... 27
Certificate of Conformity ................. 27
Quality Certification ........................ 28
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
This machine has been built using
modern production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and troublefree use
of the machine.
Please contact your dealer or our
sales company if you have any
queries concerning your machine.
Hans Peter Stihl

2
English
BT 360
Pictograms
All the pictograms attached to the
machine are shown and explained in
this manual.
The operating and handling instructions
are supported by illustrations.
Symbols in text
The individual steps or procedures
described in the manual may be marked
in different ways:
:A bullet marks a step or procedure
without direct reference to an
illustration.
A description of a step or procedure that
refers directly to an illustration may
contain item numbers that appear in the
illustration.
Example:
Loosen the screw (1)
Lever (2) ...
In addition to the operating instructions,
this manual may contain paragraphs
that require your special attention. Such
paragraphs are marked with the
symbols described below:
Warning where there is a risk of an
accident or personal injury or
serious damage to property.
Caution where there is a risk of
damaging the machine or its
individual components.
Note or hint which is not essential
for using the machine, but may
improve the operator’s under-
standing of the situation and result
in better use of the machine.
Note or hint on correct procedure in
order to avoid damage to the
environment.
Equipment and features
This instruction manual may refer to
several models with different
features. Components that are not
installed on all models and related
applications are marked with an
asterisk (*). Such components may
be available as special accessories
from your STIHL dealer.
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. If the
operating characteristics or the
appearance of your machine differ from
those described in this manual, please
contact your STIHL dealer for
assistance.
Therefore some changes, modifications
and improvements may not be covered
in this manual.
Guide to Using this Manual

3BT 360
English
Special safety
precautions must be
observed when working
with the earth auger
because of its high torque
and the high speed of the auger in
certain applications.
It is important that you
read and understand the
instruction manual before
using your earth auger for
the first time. Keep the
manual in a safe place for
future reference. Non-observance of the
safety precautions may cause serious or
even fatal injury.
Always observe local safety regulations,
standards and ordinances.
If you have never used this earth auger
model before:
Have your STIHL dealer show you how
to operate your earth auger or attend a
special course of training in earth auger
operation.
Minors should never be allowed to use
an earth auger. Children, bystanders
and animals should not be allowed in the
area where an earth auger is in use.
The earth auger user is responsible for
avoiding injury to third parties or damage
to their property.
Do not lend or rent your earth auger
without the instruction manual. Be sure
that anyone using your earth auger
understands the information contained
in this manual.
To operate the earth auger you must be
in good physical condition and mental
health and not under the influence of any
substance (drugs, alcohol) which might
impair vision, dexterity or judgment.
Do not work alone –
keep within calling distance of others in
case help is needed.
The user is responsible for third parties
in the work area of the power drill.
Only use augers and attachments
supplied by STIHL or explicitly approved
for your earth auger model by STIHL.
Other augers and attachments must not
be used because of the increased risk of
accidents.
STIHL cannot accept any liability for
personal injury or damage to property
caused by using non-approved
attachments.
Clothing and Equipment
Wear proper protective clothing and
equipment.
Clothing must be sturdy
and snug-fitting, but allow
complete freedom of
movement. Wear overalls
with a cut-retardant inlay -
a STlHL safety
combination is recommended.
Do not wear loose-fitting garments,
scarves, jewelry or anything that could
restrict movement or become entangled
with the drilling spindle or the work area.
Confine long hair (e.g.
with a hair net or similar
suitable means).
Wear steel-toed safety
boots with non-slip soles.
Safety Precautions

4
English
BT 360
Wear safety glasses or
other suitable eye
protection
Wear sound barriers, i.e.
ear plugs or ear muffs.
Wear a safety hard hat to protect your
head when there is a risk of head injuries
from falling objects.
Wear heavy-duty, non-
slip gloves, preferably
made of chrome leather.
STIHL offers a comprehensive range of
safety clothing and equipment.
Transporting the power tool –
Always shut off the engine.
To reduce the risk of serious burn
injuries, avoid touching hot parts of the
machine, especially the surface of the
muffler.
Transporting by vehicle: When
transporting in a vehicle, properly secure
your power tool to prevent turnover and
damage. Empty the fuel tank to avoid
any risk of spillage.
When the power tool is not in use, shut it
off and put it down so it cannot endanger
others.
Stop the Engine Before Refueling
Gasoline is an
extremely flammable
fuel. Keep clear of naked
flames and fire. Take care
not to spill any fuel.
Do not refuel while the
engine is still hot since fuel may overflow
and catch fire.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
Fuel your machine in a well-ventilated
area, outdoors only. If you spill fuel, wipe
it off the machine immediately – if fuel
gets on your clothing, change
immediately.
After Refueling
Tighten the fuel tank cap
by hand with as much
force as possible.
Unit vibrations can cause
an improperly tightened
fuel cap to loosen or come off and spill
quantities of fuel.
To avoid risk of serious or fatal burn
injuries, check for leakage. If fuel
leakage is found, do not start or run the
engine until leak is fixed.

5BT 360
English
Before Starting
Unfold the handle frame and make sure
it is properly locked in the working
position – see "Assembling the
Machine", "Mounting the Handle
Frame".
Check that the machine is properly
assembled and in good condition – refer
to appropriate chapters in the instruction
manual:
– Smooth action of throttle lever –
throttle lever must move freely to
idle position.
– Stop switch must move easily to
STOP or $
– Check that spark plug boot is secure
– a loose boot may cause arcing
that could ignite combustible fumes
and cause a fire.
– Never attempt to modify any of the
controls or safety devices.
– Handles securely mounted, dry and
clean – free from oil and dirt – for
safe control of the machine.
To reduce risk of accidents and personal
injury, do not operate your machine if it is
damaged or not properly assembled.
Starting the engine –
Start the engine at least 3 meters (10
feet) from the fueling spot, outdoors
only.
Do not start the engine with the auger in
the spindle. The machine must be
operated by 2 persons and may be
started only when it is held steady by the
operating crew.
Do not allow other persons in the work
area – even when starting.
For specific starting instructions, see the
appropriate section in the instruction
manual.
Note that the drilling spindle continues to
rotate for a short period after your let go
of the throttle lever (flywheel effect).
To reduce the risk of injury, never use
drilling tools or augers that are longer
than 1 meter.
To reduce risk of fire, keep hot exhaust
gases and hot muffler away from easily
combustible materials (e.g. wood chips,
bark, dry grass, fuel).
Contact with electrical
cables or wires can cause
serious injury or death as
a result of electrical
shock. Before drilling,
obtain the necessary plans and permits
and examine the work area.
Contact your local utility company for
information as to cable and pipe
locations.
Where necessary, confirm actual
location by use of devices such as cable
detectors and/or by carefully dug
trenches.
441BA014 KN

6
English
BT 360
During Operation
Warning!
Your power drill produces
toxic exhaust fumes as
soon as the engine is
running. These fumes
may be colorless and
odorless. Never run the engine indoors
or in poorly ventilated locations.
To reduce the risk of serious or fatal
injury from breathing toxic fumes,
ensure proper ventilation when working
in trenches, hollows or other confined
locations.
To reduce risk of fire,
do not smoke while
operating or standing
near your power drill.
Note that combustible fuel vapor may
escape from the fuel system.
The machine is operated by two
persons. They must hold the handle
frame firmly with both hands.
Fingers and thumbs must be wrapped
tightly around the handles – thumbs
downwards – both operators must have
a firm and safe footing at all times.
Good and clear communications
between the operators reduces the risk
of injury. Instructions and directions may
be given only by the person who is
controlling the throttle lever.
Do not touch a hot muffler – operate the
machine only with the muffler guard
securely mounted in position.
Operate the machine so that it produces
a minimum of noise and emissions – do
not run engine unnecessarily, accelerate
the engine only for drilling.
Make sure that the idle speed is properly
adjusted: The drilling tool must stop
rotating, after a brief delay, when you
move the throttle lever to the idle
position.
Check idle speed adjustment regularly. If
the drilling tool rotates, have the
machine checked by your STIHL dealer.
Do not allow any other persons in the
work area. Keep a sufficiently safe
distance away from other persons to
protect them from noise and thrown
debris.
Take special care in slippery conditions
– damp, snow, ice, on slopes and
uneven ground.
Work calmly and carefully – in daylight
conditions and only when visibility is
good – ensure you do not endanger
others – stay alert at all times.
441BA006 KN

7BT 360
English
Work particularly carefully
in rocky ground or ground
with a heavy root
structure. Keep feed
pressure to a minimum.
Hold the machine firmly to
control sudden jolts and reactive forces.
Never touch the auger or drilling spindle
unless the engine is stopped.
When taking the auger out of the hole, lift
the machine vertically so that the tool
comes out straight without canting.
Cover and clearly mark boreholes.
Do not leave the machine unattended
with the engine running. Shut off the
engine before leaving the machine (e.g.
work breaks).
Vibrations
Prolonged use of the unit may result in
vibration-induced circulation problems in
the hands (whitefinger disease).
No general recommendation can be
given for the length of usage because it
depends on several factors.
The period of usage is prolonged by:
– Hand protection (wearing warm
gloves)
–breaks
The period of usage is shortened by:
– Any personal tendency to suffer
from poor circulation (symptoms:
frequently cold fingers, itching).
– Low outside temperatures.
– Gripping force (a tight grip hinders
circulation).
Continual and regular users should
monitor closely the condition of their
hands and fingers. If any of the above
symptoms appear, seek medical advice.
Maintenance and Repairs
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in your owner's manual.
Have all other worked performed by your
STIHL dealer.
Only use genuine STlHL replacement
parts for repairs to the machine,
including the tool mounting.
Service and store your machine in well-
ventilated rooms only and empty the fuel
tank. Do not service or store your
machine near an open fire.
Never modify your machine in any way
as this could result in serious injury.

8
English
BT 360
Always shut off the engine
– before carrying out any
maintenance or repairs
– before changing the drill
Check condition of drills regularly.
Change damaged or dull drills
immediately.
Check tightness of the fuel tank cap at
regular intervals (look for leaks).
Do not touch a hot muffler. Check
condition of muffler at regular intervals to
reduce the risk of fires and damage to
hearing. Do not operate your machine if
the muffler is damaged or missing.
Use only a spark plug of the type
approved by STIHL and make sure it is
in good condition. Inspect ignition lead
(insulation in good condition, secure
connection).
To reduce the risk of fire and burn injury
as a result of sparking outside the
cylinder, move the stop switch to STOP
before turning the engine over on the
starter with the spark plug boot removed
or the spark plug unscrewed.
Store fuel in properly labelled, safety-
type canisters only. Avoid direct contact
with the skin and avoid inhaling fuel
vapor.
Mounting the Handle Frame
:Position the two inner sections (1)
against the underside of the
gearbox. Make sure the off-centre
hinge plates (2) are on the outboard
sides of the tubes.
:Fit the clamps (3) and line up the
holes.
:Insert the hex head screws (4) from
below.
:Fit the plain washers (5) and spring
washers (6). Screw on the nuts (7)
and tighten them down firmly.
:Fit two hex head screws (8) in each
of the retainers (9) – make sure the
retainer snaps into the groove in the
hex head screw.
Assembling the Machine
441BA007 KN
1
2
34 5
67
441BA008 KN
8
99
8
8

9BT 360
English
:Mount the handlebars (10) so the
holes for the throttle control are on
the right.
:Position the handlebar hinge plates
(11) against the hinge plates (2) on
the inner sections (1) and line up the
holes.
:Insert and tighten down the hex
head screws (8) firmly.
Mounting the Throttle Lever
:Fit the lever (17) and washers (18)
on the guide (19) in the order
shown.
:Fit the cap (20), making sure its two
stop lugs engage the guide (19).
:Position the throttle lever over the
hole in the handlebar (10) – check
that the holes line up.
:Insert the countersunk screw (21).
:Fit the spring washer (22).
:Screw on the nut (23) and tighten it
down moderately.
:The throttle lever (17) must move
freely.
11
441BA009 KN
12
8
10112
8
441BA010 KN
17 18
19
20
18
441BA011 KN
10
17
21
22
23

10
English
BT 360
Fitting the Throttle Cable
:Slip the spring (12) over the nipple
(13) on the throttle cable.
:Attach the nipple to the lever (14) on
the carburetor.
:Push the spring (12) against the
lever.
:Pass the throttle cable through the
guide (15).
:Press the throttle cable’s end sleeve
(16) into the guide (15) – use a
screwdriver or other suitable tool if
necessary.
:Fit the throttle cable nipple in the
recess at the back of the throttle
lever.
:Position the throttle cable in the
guide.
:Push the end sleeve (24) into its
seat (25) on the throttle cable.
:Secure the throttle cable (26) to the
handlebar with two cable ties (27).
Your engine requires a mixture of
gasoline and engine oil.
The quality of these constituents and the
mix ratio have a decisive influence on
the function and service life of the
engine.
Unsuitable fuels or lubricants or mix
ratios other than those specified
may result in serious damage to the
engine (piston seizure, rapid rate of
wear, etc.).
Gasoline
Use only high-quality mid-grade
gasoline with a minimum octane rating
of 90. If the octane rating of the mid-
grade gasoline in your area is lower, use
premium fuel – leaded or unleaded.
For health and environmental
reasons, you should give
preference to unleaded gasoline.
If your machine is equipped with a
catalytic converter, you must use
unleaded gasoline.
A few tankfuls of leaded gasoline
will greatly reduce the efficiency of
the catalytic converter.
16
15
441BA012 KN
12 13
14
441BA013 KN
2425
26
27
Fuel

11BT 360
English
Engine Oil
Use only quality two-stroke engine oil.
We recommend STIHL two-stroke
engine oil since it is specially
formulated for use in STlHL engines
and guarantees a long engine life.
Use only STIHL 50:1 two-stroke
engine oil for the fuel mix in models with
a catalytic converter.
If no STIHL two-stroke engine oil is
available, use only quality two-stroke oil
designed for use in air cooled engines.
Do not use oils designed for water
cooled engines or engines with a
separate lubricating system (e.g.
conventional four-stroke engines).
Poor quality gasoline or engine oil
may damage the engine, sealing
rings, hoses and the fuel tank.
Mixing Fuel
Avoid direct skin contact with
gasoline and avoid inhaling
gasoline vapor.
:Use a canister approved for storing
fuel. Pour oil (1) into the canister
first, then add gasoline (2) and mix
thoroughly.
Mix Ratio
STIHL 50:1 two-stroke engine oil:
50 parts gasoline to 1 part oil
Other high-quality two-stroke engine
oils:
25 parts gasoline to 1 part oil
Examples
Storing Fuel
Fuel mix ages:
Only mix sufficient fuel for a few months
work. Store in approved safety-type fuel
canisters in a dry and safe location.
:Thoroughly shake the mixture in the
canister before fueling your
machine.
Pressure may build up in the
canister – open it carefully.
:Clean the fuel tank and canister
from time to time.
Dispose of remaining fuel and
cleaning fluid properly in
accordance with local regulations
and environment requirements.
12
000BA042 KN
MIX
Gaso-
line
STIHL
engine oil
50:1
Other
high-quality
TC oils
25:1
Liters Liters (cc) Liters (cc)
1 0.02 (20) 0.04 (40)
5 0.10 (100) 0.20 (200)
10 0.20 (200) 0.40 (400)
15 0.30 (300) 0.60 (600)
20 0.40 (400) 0.80 (800)
25 0.50 (500) 1.00 (1000)

12
English
BT 360
:Before fueling, clean the filler cap
and the area around it to ensure that
no dirt falls into the tank.
:Position the unit so that the filler cap
is facing up.
Take care not to spill fuel while fueling
and do not overfill the tank. STIHL
recommends use of the STIHL filling
system (special accessory).
After fueling, tighten down the filler
cap by hand as securely as
possible.
* see "Guide to Using this Manual"
Replacing the Fuel Pickup Body
:Install a new pickup body every 12
months:
:Drain the fuel tank.
:Use a hook to pull the fuel pickup
body out of the tank and take it off
the hose.
:Push the new pickup body into the
hose.
:Place the pickup body in the tank.
To reduce the risk of serious
accidents and injury never start the
engine with the auger in the spindle.
:Place the machine on the ground so
that it rests on the handle frame with
the throttle lever at the top. Both
operators must hold the handlebar
steady and secure it by putting one
foot through each end of the
handlebar and pressing down.
Fueling
441BA003 KN
441BA004 KN
Starting / Stopping the
Engine
441BA014 KN

13BT 360
English
:Observe safety precautions – see
chapter "Safety Precautions".
:Pull the choke knob (1) out
if the engine is cold.
Push the choke knob (1) in
if the engine is warm
(also use this position if engine has
been running but is still cold).
:Move the stop switch (2) away from
"STOP".
Starting throttle position
:Turn the throttle lever (3) with your
left hand until it is in line with the
handlebar.
:Pull the starter grip slowly with your
left hand until you feel it engage –
and then give it a brisk strong pull.
:Do not pull out the starter rope to full
length – it might otherwise break.
:Do not let the starter grip snap back
– guide it slowly and vertically into
the housing so that the starter rope
can rewind properly.
If the engine is new, pull the starter rope
several times to prime the fuel system.
441BA015 KN
1
441BA016 KN
2
441BA017 KN
3
441BA005 KN

14
English
BT 360
When engine begins to fire:
:Push in the choke knob and
continue cranking.
As soon as the engine runs:
:Immediately move the throttle lever
back to the idle position – the engine
will settle down to idling speed.
Make sure the carburetor is
correctly adjusted – the drilling
spindle must not rotate when the
engine is idling.
The machine is now ready for operation.
To shut down the engine:
:Move the stop switch (2) to "STOP"
At very low outside temperatures:
Allow engine to warm up.
If engine doesn't start:
If you did not push in the choke knob
quickly enough after the engine began to
fire, the combustion chamber is flooded.
:Pull off the spark plug boot.
:Unscrew and dry off the spark plug.
:Set the stop switch to "STOP".
:Crank the engine several times with
the starter to clear the combustion
chamber.
:Refit the spark plug and connect the
spark plug boot,
:Move the stop switch away from
"STOP".
:Push in the choke knob – even if the
engine is cold.
:Now start the engine.
If fuel tank has been run until dry and
then refueled:
:Pull the starter rope several times to
prime the fuel system.
441BA018 KN
441BA019 KN
2
441BA020 KN

15BT 360
English
:Hold the auger bit vertically and
drop it from a height of about 50 cm
so that its tip pierces the ground and
stays upright.
:With the engine running at idle
speed, position the powerhead on
the upright auger bit. Make sure the
end of the auger properly engages
the drilling spindle’s coupling.
:Lock the auger in the drilling spindle
by rotating the clamp ring (1) one
quarter turn counterclockwise.
During Break-in Period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During Operation
After a long period of full-throttle
operation, allow engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period:
Wait for engine to cool down. Store the
machine with a full fuel tank in a dry
place well away from sources of ignition
until you need it again.
Storing for a long period:
see chapter "Storing the Machine".
Working with Shaft Extension
(special accessory)
Do not fit the shaft extension until the full
length of the auger is in the hole.
Starting a hole with the shaft
extension fitted increases the risk of
personal injury because the unit is
then at chest height and cannot be
kept properly under control.
For the same reason the shaft
extension must be removed before
the auger is pulled out of the hole.
Inspection by a Specialist
If the machine is used commercially, it
must be inspected at least once a year
by a specialist, e.g. STIHL dealer, to
ensure it is in good and safe working
order.
Fitting the Auger
441BA021 KN
441BA022 KN
1
Operating Instructions

16
English
BT 360
If the auger jams in the hole –
shut off the engine immediately:
:Move the stop switch to STOP
:Pull the interlock lever (1) to the left
to block the gearbox.
:Rotate the whole machine
counterclockwise to unwind the
auger from the ground.
The interlock lever is designed to
disengage automatically if a given
maximum unwinding torque is
exceeded. This reduces the risk of
damaging the drilling gear.
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of engine
power:
:Pull out the choke knob (1).
:Loosen the twist lock (2) on the filter
cover.
:Remove the filter cover (3).
:Clean away loose dirt from around
the filter and inside the filter cover.
:Inspect the main filter (4) – if it is
dirty or damaged, unscrew the end
cover (5) with wingnut.
:Remove and replace the main filter.
Always install a new auxiliary filter
together with the new main filter.
Releasing a Trapped Auger
441BA023 KN
1
Cleaning the Air Filter
2
1
3
441BA024 KN
5
441BA025 KN
4

17BT 360
English
:Inspect the auxiliary filter (6) – if it is
dirty, knock it out on the palm of your
hand – if it is damaged, install a new
one.
When removing the auxiliary filter
take care to ensure that no dirt falls
into the intake.
:Clean the filter box – reassemble all
filter components.
:Fit the filter cover.
:Tighten down the twist lock.
:Push in the choke knob.
General Information
Your carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
It ensures your machine will deliver
maximum power, be fuel efficient and
operate reliably.
If the setting is too lean there is
a risk of engine damage due to
insufficient lubrication and
overheating.
Standard Setting
:Shut off the engine.
:Remove the auger.
:Check the air filter and replace if
necessary.
:Check the spark arresting screen* in
the muffler – clean or replace it if
necessary.
:Carefully screw both screws down
onto their seats.
:Open the high speed screw (H) one
full turn.
:Open the low speed screw (L) on
full turn.
* see "Guide to Using this Manual"
441BA026 KN
6
Adjusting the Carburetor
335BA011 KN
H
H
L 1
1
L

18
English
BT 360
Adjusting Idle Speed
Engine stops while idling
:Carry out standard setting with the
low speed screw (L).
:Turn the idle speed screw (LA)
clockwise until the drilling spindle
begins to rotate – then back it off
1/2 a turn.
Drilling spindle rotates when engine
is idling
:Carry out standard setting with the
low speed screw (L).
:Turn the idle speed screw (LA)
counterclockwise until the drilling
spindle stops rotating – then turn the
screw another 1/2 turn in the same
direction.
Fine Tuning for Operation
at High Altitude
A slight correction may be necessary if
engine power is not satisfactory:
:Check standard setting.
:Warm up the engine.
:Adjust idle speed correctly.
:Turn the high speed screw (H)
clockwise (leaner). If engine is down on power, difficult to
start or runs poorly at idle speed, first
check the spark plug.
:Remove the spark plug –
see "Starting / Stopping the Engine".
:Clean dirty spark plug.
:Check electrode gap (A) and
readjust if necessary – see
"Specifications".
441BA027 KN
LA
STOP
335BA013 KN
H
H
L 1
1
Checking the Spark Plug
000BA002 KN

19BT 360
English
:Rectify the problems which have
caused fouling of spark plug:
– To much oil in fuel mix.
– Dirty air filter.
– Unfavorable running conditions.
:Fit a new spark plug after
about 100 operating hours – or
sooner if the electrodes are badly
eroded.
Install only suppressed spark plugs
of the type approved by STIHL –
see "Specifications".
To reduce the risk of arcing
and fire:
:If the spark plug comes with a
detachable adapter nut (1), screw it
on firmly.
On all spark plugs:
:Always press the boot (2) firmly on
to the spark plug (3).
Use a mildly alloyed gear oil (see
"Special Accessories") for lubrication of
the gearbox.
Checking Oil Level
:Check the oil level regularly – once
a week in normal operating
conditions.
:Remove the auger.
:Position the gearbox vertically so
that the drilling spindle is horizontal
and the throttle trigger is at the top.
:Take out the inspection plug (1) – if
the oil level does not come up to the
bottom edge of the hole, take out
the filler plug (2) and top up with oil
until it reaches the bottom edge of
the inspection hole.
:Fit inspection and filler plugs with
sealing rings and tighten down
firmly.
1
000BA045 KN
3
000BA050 KN
2
Gearbox Lubrication
2
441BA028 KN
1

20
English
BT 360
Changing Gearbox Oil
:The drilling spindle must point
vertically downwards. Drain the oil
while it is at normal operating
temperature.
:Take out the inspection plug (1).
:Fill the gearbox with fresh oil as
described under "Checking Oil
Level".
Replacing the starter rope
:Take out the screws (1).
:Remove the fan housing (2)from
the crankcase.
:Use a screwdriver or suitable
pliers to carefully remove the spring
clip (3) from the starter post.
:Remove the rope rotor (4) together
with the washer (5) and pawl (6).
:Use a screwdriver to lever the
starter rope (7) out of the grip (8).
:Remove the remaining rope from
the rotor and starter grip.
Replacing the Starter Rope
and Rewind Spring
1
11
441BA029 KN
2
441BA030 KN
3
4
5
6
7
8
9