STIHL HT 102, 103, 132, 133
Instruction Manual
Notice d’emploi
G Instruction Manual
1 - 37
F Notice d’emploi
38 - 80
Contents
English
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 2
Using the Unit 8
Cutting Attachment 10
Mounting the Bar and Chain 10
Tensioning the Chain 11
Checking Chain Tension 12
Original Instruction ManualPrinted on chlorine-free paper
Adjusting the Throttle Cable 12
Fitting the Clip 12
Fuel 13
Fueling 14
Chain Lubricant 15
Filling Chain Oil Tank 15
Checking Chain Lubrication 17
Adjusting the Telescoping Shaft 17
Fitting the Harness 18
Backpack Carrying System 18
Starting / Stopping the Engine 20
Operating Instructions 22
Taking Care of the Guide Bar 23
Replacing the Air Filter 23
Printing inks contain vegetable oils, paper can be recycled.
Engine Management 24
Adjusting the Carburetor 24
Spark Arresting Screen in Muffler 24
Spark Plug 25
Storing the Machine 26
Checking and Replacing the Chain
Sprocket 26
Maintaining and Sharpening the
Saw Chain 27
Maintenance and Care 30
Main Parts 32
Specifications 34
Maintenance and Repairs 35
Disposal 35
STIHL Limited Emission Control
Warranty Statement 36
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
It has been built using modern
production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and trouble-free use of
the product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
© ANDREAS STIHL AG & Co. KG, 2020
0458-435-8221-A. VA2.H20.
0000007471_003_GB
HT 102, HT 103, HT 132, HT 133
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
1
English
Guide to Using this Manual
Pictograms
The meanings of the pictograms
attached to the machine are explained in
this manual.
Depending on the model concerned, the
following pictograms may be attached to
your machine.
Fuel tank; fuel mixture of
gasoline and engine oil
Chain oil tank; chain oil
Direction of chain rotation
Operate manual fuel
pump
Manual fuel pump
Symbols in text
WARNING
Warning where there is a risk of an
accident or personal injury or serious
damage to property.
NOTICE
Caution where there is a risk of
damaging the machine or its individual
components.
Engineering improvements
STIHL's philosophy is to continually
improve all of its products. For this
reason we may modify the design,
engineering and appearance of our
products periodically.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
Safety Precautions and
Working Techniques
Special safety precau
tions must be observed
when working with the
pole pruner because it
operates at a very high
chain speed, has very
sharp cutters and a long
reach.
It is important you read
and understand the User
Manual before commis
sioning and keep it in a
safe place for future ref
erence. Non-compliance
with the User Manual
may cause serious or
even fatal injury.
Observe all applicable local safety
regulations, e.g. by trade organizations,
social insurance institutions, labor safety
authorities etc.
If you have never used a power tool
before: Have your dealer or other
experienced user show you how to
operate your machine – or attend a
special course to learn how to operate it.
Minors are not allowed to work with the
power tool – except adolescents above
16 years of age who are instructed
under supervision.
Children, animals and bystanders must
remain at a distance.
When not using the machine, it must be
laid down in such a way that it does not
endanger anyone. Ensure that the
machine cannot be used without
authorization.
-
-
-
2
HT 102, HT 103, HT 132, HT 133
English
275BA009 KN
The user is responsible for accidents or
risks involving third parties or their
property.
Do not lend or rent your power tool
without the User Manual. Be sure that
anyone using it understands the
information contained in this manual.
The use of machines that emit noise
may be limited to certain hours of the
day as specified by national and/or
regional or local regulations.
Anyone operating the machine must be
well rested, in good physical health and
in good mental condition.
If you have any condition that might be
aggravated by strenuous work, check
with your doctor before operating a
machine.
If you have a pacemaker: The ignition
system of your machine produces an
electromagnetic field of very low
intensity. This field may interfere with
some pacemakers. STIHL recommends
that persons with pacemakers consult
their physician and the pacemaker
manufacturer to reduce any health risk.
Anyone who has consumed alcohol or
drugs or medicines affecting their ability
to react must not operate a power tool.
Use your pole pruner for limbing only
(removing or pruning branches). Saw
wood and wooden objects only.
The machine must not be used for any
other purposes – risk of accidents!
Only use guide bars, saw chains, chain
sprockets and accessories that are
explicitly approved for this power tool
model by STIHL or are technically
identical. If you have any questions in
this respect, consult your dealer. Use
only high quality parts and accessories.
In order to avoid the risk of accidents
and damage to the machine.
STIHL recommends the use of STIHL
original tools, guide bars, saw chains,
chain sprockets and accessories. They
are specifically designed to match the
product and meet your performance
requirements.
Never attempt to modify your power tool
in any way since this may increase the
risk of personal injury. STIHL excludes
all liability for personal injury and
damage to property caused while using
unauthorized attachments.
Do not use a high-pressure washer to
clean the power tool. The solid jet of
water may damage parts of the unit.
Clothing and equipment
Wear proper protective clothing and
equipment.
Clothing must be sturdy
but allow complete free
-
dom of movement. Wear
close-fitting clothes such
as a boiler suit, not a
loose jacket.
Do not wear clothing which could
become trapped in wood, brush or
moving parts of the machine. Do not
wear a scarf, necktie or jewelry. Tie up
and confine long hair above your
shoulders.
Wear cut protection
safety boots with non-slip
soles and steel toe caps.
WARNING
To reduce the risk of eye
injuries, wear close-fit
-
ting safety glasses in
accordance with Euro
-
pean Standard EN 166.
Make sure the safety
glasses are a snug fit.
Wear "personal" sound protection, e.g.
ear defenders.
Wear a safety hard hat where there is a
danger of head injuries from falling
objects.
Wear sturdy protective
gloves made of a resist
-
ant material (e. g.
leather).
STIHL can supply a comprehensive
range of personal protective equipment.
Transporting the machine
Always stop the engine.
Always fit the chain scabbard – even
when you carry the power tool for short
distances.
HT 102, HT 103, HT 132, HT 133
3
English
Carry the power tool properly balanced
by the shaft. Do not touch hot parts of
the machine, especially the surface of
the muffler – Risk of burns!
By vehicle: When transporting in a
vehicle, properly secure your machine to
prevent turnover, damage and fuel
spillage.
Refueling
Gasoline is highly flam
mable – keep away from
fire or flame – do not spill
any fuel – no smoking.
Always shut off the engine before
refueling.
Do not fuel a hot engine – fuel may spill
and cause a fire.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
Only refuel the machine in a well
ventilated place. If fuel has been spilled,
immediately clean the machine – do not
allow your clothes to be splashed with
fuel. If that happens, change your
clothes at once.
After fueling, tighten
down the screw-type fuel
cap as securely as
possible.
This helps reduce the risk of unit
vibrations causing an incorrectly
tightened fuel cap to loosen or come off
and spill quantities of fuel.
-
Check for leaks. Do not start the engine
if there is a fuel leak – serious or fatal
burns could result!
Before starting
Check that your power tool is properly
assembled and in good condition – refer
to appropriate chapters in the User
Manual.
– Check the fuel system for leaks,
especially the visible parts, e. g.,
fuel cap, hose connections, manual
fuel pump (only in machines with a
manual fuel pump). In case of
leakage and damage, do not start
the engine – risk of fire! Have the
machine serviced by a dealer
before using it
– Correctly mounted guide bar
– Correctly tensioned saw chain
– The stop switch must be easy to
push
– Check the choke lever, throttle
trigger and throttle trigger lockout
for smooth action - throttle trigger
must return automatically to idle
position. The choke lever must
spring back from the g and <
positions to the run position F when
the throttle trigger lockout and
throttle trigger are squeezed
– Check that the spark plug boot is
secure – a loose boot may cause
sparking that could ignite
combustible fumes and cause a fire!
– Never attempt to modify the controls
or safety devices
– Keep the handles dry and clean –
free from oil and dirt – this is
important for safe control of the
machine
– Adjust the harness to suit your
height and reach. Observe the
chapter "Fitting the Harness"
To reduce the risk of personal injury, do
not operate your power tool if it is
damaged or not properly assembled!
If you use a harness: Practice setting
down the machine quickly by removing
the harness or by unhooking the
machine as you would in an emergency.
To avoid damage, do not throw the
machine to the ground when practicing.
Starting the engine
Start the engine at least 3 meters from
the fueling spot, outdoors only.
Place the power tool on level ground in
an open area. Make sure you have good
balance and secure footing. Hold the
power tool securely. The chain must be
clear of the ground and all other
obstructions because it may begin to run
when the engine starts.
Your power tool is designed to be
operated by one person only. Do not
allow other persons within a radius of
15 m of your own position – even when
starting the power tool – Risk of injury!
Start the engine as described in the user
manual.
The saw chain continues running for a
short period when you release the
throttle trigger – flywheel effect!
4
HT 102, HT 103, HT 132, HT 133
English
390BA026 KN
15m (50ft)
15m (50ft)
Check engine idling speed: The saw
chain must not move when the engine is
idling – with the throttle trigger released.
Keep easily flammable materials (e.g.
wood chips, bark, dry grass, fuel) away
from the hot exhaust gas flow and the
hot muffler surface – Risk of fire!
Holding and guiding the machine
Always hold the power tool firmly with
both hands – right hand on the control
handle, left hand on the drive tube –
even if you are left-handed. Wrap your
thumbs firmly around the control handle
and shaft.
Machines with telescopic shaft: Extend
the telescopic shaft only as far as the
working height.
While working
Make sure you always have good
balance and secure footing.
In the event of impending danger or in
an emergency, switch off the engine
immediately by pressing the stop switch.
This power tool is not
insulated. Keep at least
15 m away from electric
power lines – Danger of
fatal electric shock!
Do not allow other persons within a
radius of 15 m of your own position due
to falling branches and ejected wood
particles – Risk of injury!
This distance must also be maintained in
relation to objects (vehicles, window
panes) – risk of property damage!
Keep the bar nose at least 15 m away
from electric power lines . Electric
current may also arc over from highvoltage cables at greater distance. Have
the power switched off before starting
work in the immediate vicinity of power
lines.
Switch off the engine before changing
the saw chain – Risk of injury!
Ensure that the engine idling speed is
correct. The saw chain must not move
when the throttle trigger has been
released.
It the saw chain continues moving, have
the machine repaired by your specialist
dealer. Check and correct the idle speed
setting at regular intervals.
Never leave a running machine
unattended.
Take special care in slippery, wet
conditions, in snow and on slopes,
uneven ground, etc. – Risk of slipping!
Watch out for obstacles: tree stumps,
roots – risk of tripping or stumbling!
When working at heights:
– Always use a lift bucket
– Never use the machine while
standing on a ladder or in a tree
– Never work on an insecure support
– Never use the machine with just one
hand
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
Take breaks when you start getting tired
or feeling fatigue – risk of accidents!
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Proceed with caution, do not put
others in danger.
HT 102, HT 103, HT 132, HT 133
5
English
246BA030 KN
246BA032 KN
As soon as the engine is
running, the power
machine generates toxic
exhaust gas. These
gases may be odorless
and invisible and may
contain unburned hydro
-
carbons and benzene.
Never run the engine
indoors or in poorly venti
lated locations, even if
your model is equipped
with a catalytic converter.
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.
Stop work immediately if you start
suffering from nausea, headaches,
impaired vision (e.g. your field of vision
gets smaller), impaired hearing,
dizziness, or impaired concentration –
these symptoms may possibly be the
result of too-high exhaust gas
concentration – Risk of accidents!
Operate your power tool so that it
produces a minimum of noise and
emissions – do not run the engine
unnecessarily, accelerate the engine
only when working.
To reduce the risk of fire, do not smoke
while operating or standing near your
power tool. Combustible fuel vapor may
escape from the fuel system.
Dust (e.g. sawdust), fumes and smoke,
generated while using the machine, may
be hazardous to health. Wear a dust
mask in case of dust formation.
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". Check in particular
that the fuel system has no leaks and the
safety equipment is fully operative.
Never use a power tool that is no longer
-
safe to operate. In case of doubt, contact
a dealer.
If you use a harness, ensure that the
exhaust gas flow is diverted away from
your body – Risk of fire!
Limbing
Hold the pole pruner at an angle. Do not
stand directly underneath the limb being
cut. Do not exceed an angle of 60° from
the horizontal. Watch for falling wood.
Keep the work area clear – remove
interfering limbs and brush.
Before sawing branches, establish an
escape route and remove all obstacles.
When performing the separating cut,
position the bar against the branch near
the hook. This will prevent the power tool
from making jolting movements when
you start the separating cut.
Start the cut with the saw chain at full
throttle.
Always cut with a correctly sharpened,
properly tensioned saw chain – the
depth gauge setting must not be too
large.
Do not operate your power tool in the
starting throttle position – engine speed
cannot be controlled in this position.
Perform cross-cut from the top
downward to avoid the chain pinching in
the cut.
If branches are thick or heavy, make a
relief cut – see "Using the Pole Pruner".
Exercise extreme caution when sawing
branches under tension – Risk of injury!
Always make a relieving cut on the
compression side first and then perform
the bucking cut at the tension side.
Be careful when cutting splintered wood
– Risk of injury from ejected pieces of
wood!
6
HT 102, HT 103, HT 132, HT 133
English
If working on a slope, always stand uphill
or to the side of the branch which is to be
sawn. Watch out for rolling branches.
Note when reaching the end of a cut that
the power tool is no longer supported by
the guide bar in the cut. The user must
bear the weight of the machine – risk of
loss of control!
Always pull the power tool out of the cut
with the saw chain running.
Use the power tool for limbing and
pruning only, not for felling – Risk of
accidents!
Keep the saw chain away from any
foreign objects: Stones, nails, etc. may
be ejected and damage the saw chain.
If a rotating saw chain hits a stone or
another hard object, sparks may be
generated which may ignite easily
flammable materials under certain
conditions. Also dried-out plants and
brushwood are combustible, above all in
hot and dry weather. If there is a risk of
fire, do not use your pole pruner near
easily flammable materials, dry plants or
scrub. It is mandatory that you ask the
responsible forestry office about the
current fire hazard.
Before you leave the machine: Shut the
engine off.
Vibrations
Prolonged use of the power tool 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)
– Work breaks
The period of usage is shortened by:
– Any personal tendency to suffer
from poor circulation (symptoms:
frequently cold fingers, tingling
sensations).
– Low outside temperatures.
– The force with which the handles
are held (a tight grip restricts
circulation).
Continual and regular users should
monitor closely the condition of their
hands and fingers. If any of the above
symptoms appear (e.g. tingling
sensation in fingers), seek medical
advice.
Maintenance and Repairs
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in the instruction manual.
Have all other work performed by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
Only use high-quality replacement parts
in order to avoid the risk of accidents
and damage to the machine. If you have
any questions in this respect, consult a
servicing dealer.
STIHL recommends the use of genuine
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury from
unintentional engine startup, always
shut off the engine and disconnect the
spark plug boot before performing any
repairs, maintenance or cleaning work. –
Exception: Carburetor and idle speed
adjustments.
Do not turn the engine over on the
starter with the spark plug boot or spark
plug removed since there is otherwise a
risk of fire from uncontained sparking.
To reduce the risk of fire, do not service
or store your machine near open flames.
Check the fuel filler cap for leaks at
regular intervals.
Use only a spark plug of the type
approved by STIHL and make sure it is
in good condition – see "Specifications".
Inspect the ignition lead (insulation in
good condition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire, do not operate
your machine if the muffler is damaged
or missing – there is also a risk of
hearing damage.
Do not touch a hot muffler since burn
injury will result.
Shut off the engine
– before checking chain tension.
– before retensioning the chain.
– before replacing the chain.
– before rectifying problems.
HT 102, HT 103, HT 132, HT 133
7
English
246BA030 KN
Observe sharpening instructions – keep
the chain and guide bar in good
condition at all times for safe and correct
handling of the machine. The chain must
be properly sharpened, tensioned and
well lubricated.
Always change the chain, guide bar and
sprocket in good time.
Store fuel and chain lubricant in properly
labeled, safety-type canisters only.
When handling gasoline, avoid direct
contact with the skin and avoid inhaling
fuel vapor – health risk.
Maintenance, replacement, or repair of
the emission control devices and
systems may be performed by any
nonroad engine repair establishment or
individual. However, if you make a
warranty claim for a component which
has not been serviced or maintained
properly, STIHL may deny coverage.
For any maintenance please refer to the
maintenance chart and to the warranty
statement near the end of the instruction
manual.
Using the Unit
Preparations
N Wear suitable protective clothing,
observe safety precautions.
N Adjust telescoping shaft to the
required length (HT 103, HT 133
only).
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.
HT 102, HT 132
Always hold the shaft with your left hand
in the area of the handle hose.
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.
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 shaft with your left hand.
Your left arm should be extended to the
most comfortable position.
8
HT 102, HT 103, HT 132, HT 133
English
246BA032 KN
2
1
246BA033 KN
3
4
A
390BA024 KN
0000-GXX-1568-A0
0000-GXX-1569-A0
Cross-cut
To avoid pinching the bar in the cut,
position the cutting attachment with the
housing against the branch and then
perform the cross-cut from the top
downwards.
Relieving cut
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 Perform the cross cut (2) – position
the bar with the housing against the
branch.
Flush-cutting thick branches
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
To avoid tearing the bark on thick
branches, always start by performing a
relieving cut (1) on the underside of the
branch.
HT 102, HT 103, HT 132, HT 133
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.
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.
9
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
The scope of supply includes a bar
scabbard that matches the cutting
attachment.
If guide bars of different lengths are
mounted to the pole pruner, always use
a chain scabbard of the correct length
which covers the complete guide bar.
The length of the matching guide bars is
marked on the side of the chain
scabbard.
Mounting the 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.
10
HT 102, HT 103, HT 132, HT 133
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 102, HT 103, HT 132, HT 133
11
English
246BA025 KN
002BA655 KN
0000-GXX-1672-A0
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".
Adjusting the Throttle Cable
It may be necessary to correct the
adjustment of the throttle cable after
assembling the machine or after a
prolonged period of operation.
Adjust the throttle cable only when the
unit is completely and properly
assembled.
N Set the throttle trigger to the full
throttle position.
N Carefully rotate the screw in the
throttle trigger in the direction of the
arrow until you feel initial resistance.
Then rotate it another half turn in the
same direction.
Fitting the Clip
Clip-On Carrying Ring (only versions
with telescoping shaft)
Position of carrying ring
A
B
0000-GXX-1673-A0
Depending on the shaft length, the
following positions are recommended:
– Telescoping shaft compressed,
distance A = 15 cm (6 in)
– Telescoping shaft fully extended,
distance B = 50 cm (20 in)
Fitting the clip-on carrying ring
12
N Squeeze the ends (arrows) together
and push carrying ring onto the
shaft.
HT 102, HT 103, HT 132, HT 133
English
Fuel
This engine is certified to operate on
unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1.
Your engine requires a mixture of highquality gasoline and two-stroke air
cooled engine oil.
Use mid-grade unleaded gasoline with a
minimum octane rating of 89 ((R+M)/2)
and no more than 10% ethanol content.
Fuel with an octane rating below 89 may
increase engine temperatures. This, in
turn, increases the risk of piston seizure
and damage to the engine.
The chemical composition of the fuel is
also important. Some fuel additives not
only detrimentally affect elastomers
(carburetor diaphragms, oil seals, fuel
lines, etc.), but magnesium castings and
catalytic converters as well. This could
cause running problems or damage the
engine. For this reason STIHL
recommends that you use only quality
unleaded gasoline!
Gasoline with an ethanol content of
more than 10% can cause running
problems and major damage in engines
and should not be used.
For further details, see
www.STIHLusa.com/ethanol
The ethanol content in gasoline affects
engine speed – it may be necessary to
readjust the carburetor if you use fuels
with various ethanol contents.
WARNING
To reduce the risk of personal injury
from loss of control and / or contact with
the running cutting tool, do not use your
unit with incorrect idle adjustment. At
correct idle speed, the cutting tool
should not move.
If your power tool´s idle speed is
incorrectly adjusted, have your
authorized STIHL servicing dealer
check your machine and make the
proper adjustments and repairs.
The idle speed and maximum speed of
the engine change if you switch from a
fuel with a certain ethanol content to
another fuel with a much higher or lower
ethanol content.
This problem can be avoided by always
using fuel with the same ethanol
content.
To ensure the maximum performance of
your STIHL engine, use a high quality 2cycle engine oil, such as STIHL 2-cycle
engine oils. STIHL 2-cycle engine oils
are specially designed for STIHL
engines. To help your engine run
cleaner and reduce harmful carbon
deposits, STIHL recommends using
STIHL HP Ultra 2-cycle engine oil, or
use an equivalent high quality 2-cycle
engine oil.
To meet the requirements of EPA and
CARB we recommend to use STIHL HP
Ultra oil or equivalent.
Do not use NMMA or TCW rated (twostroke water cooled) mix oils or other
mix oils that state they are for use in both
water cooled and air cooled engines
(e.g., outboard motors, snowmobiles,
chain saws, mopeds, etc.).
Take care when handling gasoline.
Avoid direct contact with the skin and
avoid inhaling fuel vapor. When filling at
the pump, first remove the container
from your vehicle and place the
container on the ground before filling. To
reduce the risk of sparks from static
discharge and resulting fire and/or
explosion, do not fill fuel containers that
are sitting in or on a vehicle or trailer.
The container should be kept tightly
closed in order to limit the amount of
moisture that gets into the mixture.
The machine’s fuel tank should be
cleaned as necessary.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. STIHL MotoMix has a high
octane rating and ensures that you
always use the right gasoline/oil mix
ratio.
STIHL MotoMix uses STIHL HP Ultra
two-stroke engine oil suited for high
performance engines.
For further details, see
www.STIHLusa.com/ethanol
Fuel mix ages
If not using STIHL MotoMix, only mix
sufficient fuel for a few days of work, not
to exceed 30 days of storage. Store in
approved fuel-containers only. When
mixing, pour oil into the container first,
and then add gasoline. Close the
container and shake it vigorously by
hand to ensure proper mix of oil and
gasoline.
HT 102, HT 103, HT 132, HT 133
13
English
0000-GXX-0476-A0
002BA447 KN
002BA448 KN
Gasoline Oil (STIHL 50:1 or equiva
lent high-quality oils)
Liters Liters (ml)
10.02(20)
5 0.10 (100)
10 0.20 (200)
20 0.40 (400)
US gal. US fl.oz.
12.6
2 1/2 6.4
5 12.8
Dispose of empty mixing-oil containers
only at authorized disposal locations.
-
Fueling
Preparations
N Before fueling, clean the filler 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.
Opening the Tank Cap
Filling Up with Fuel
Take care not to spill fuel while fueling
and do not overfill the tank.
STIHL recommends you use the STIHL
filler nozzle for fuel (special accessory).
N Fill up with fuel.
Closing the Tank Cap
N Place the cap in the opening.
N Turn the cap clockwise as far as
stop and tighten it down as firmly as
possible by hand.
14
N Turn the cap counterclockwise until
it can be removed from the tank
opening.
N Remove the tank cap.
HT 102, HT 103, HT 132, HT 133
English
246BA026 KN
0000,GXX-0135-A0 KN
0000-GXX-0136-A0
0000-GXX-0137-A0 KN
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
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.
Opening
N Raise grip to vertical position.
N Turn the cap counterclockwise
(about a quarter turn).
NOTICE
Waste oil does not have the necessary
lubricating properties and is unsuitable
for chain lubrication.
HT 102, HT 103, HT 132, HT 133
Marks on tank cap and oil tank must line
up.
15
English
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
0000-GX-0142 A0 KN
N Remove the tank cap.
Filling Up with Chain Oil
N Fill the tank with chain oil.
Take care not to spill chain oil while
refilling and do not overfill the tank.
STIHL recommends you use the STIHL
filler nozzle for chain oil (special
accessory).
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.
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.
16
HT 102, HT 103, HT 132, HT 133
English
002BA584 KN
1
0000-GXX-0136-A0
246BA027 KN
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".
Checking Chain Lubrication
-
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".
Adjusting the Telescoping
Shaft
WARNING
Always shut off the engine and fit the
chain guard
0000-GXX-1566-A0
N Loosen the clamp nut half a turn
counterclockwise.
N Adjust shaft to the required length.
N Tighten down the clamp nut firmly.
HT 102, HT 103, HT 132, HT 133
17
English
2
1
0000-GXX-1663-A0
2
1
0000-GXX-1664-A0
2
1
0000-GXX-1571-A0
Fitting the Harness
The type and style of the shoulder strap
depend on the market.
Shoulder strap (HT 102, HT 132)
N Put on the shoulder strap (1).
N Adjust the length of the strap.
N With the power tool attached, the
carabiner (2) must be at about the
same height as your right hip.
Shoulder strap (HT 103, HT 133)
N Put on the shoulder strap (1).
N Adjust the length of the strap.
N With the power tool attached, the
carabiner (2) must be at about the
same height as your right hip.
Backpack Carrying System
Only versions with rigid shaft
N Put the backpack carrying
system (1) on your back and adjust
it as described in the instruction
leaflet provided.
N Attach the carabiner (2) to the
machine's carrying ring.
N Attach the pole pruner to the
carrying strap when cutting.
18
HT 102, HT 103, HT 132, HT 133
English
Only versions with telescoping shaft
1
4
5
3
5
4
2
3
N Adjust the hip belt (3), both shoulder
straps (4) and the carrying strap (5).
0000-GXX-1572-A0
N Put the backpack carrying
system (1) on your back and adjust
it as described in the instruction
leaflet provided.
N Attach the carabiner (1) to the
carrying ring (2) on the shaft.
N Attach the pole pruner to the
carrying strap when cutting.
3
N Adjust the hip belt (3), both shoulder
0000-GXX-1573-A1
straps (4) and the carrying strap (5).
N Squeeze the clip together to move it
up or down the shaft.
0000-GXX-1574-A0
0000-GXX-1575-A0
HT 102, HT 103, HT 132, HT 133
19
English
2
1
3
0000-GXX-0477-A0
0000-GXX-0478-A0
0000-GXX-1576-A0
Starting / Stopping the
Engine
Controls
1 Throttle trigger lockout
2 Throttle trigger
3 Stop switch with Run and Stop
positions. Depress the stop switch
(…) to switch off the ignition – see
"Function of stop switch and ignition
system".
Function of stop switch and ignition
system
The ignition is switched off and the
engine stopped when the stop switch is
pressed. The stop switch returns
automatically to the Run position when it
is released: The ignition is switched on
again after the engine stops – the engine
is then ready to start.
Starting the Engine
N Press the manual fuel pump
bulb (9) at least five times – even if
the bulb is already filled with fuel.
N Press in the choke knob (8) and turn
it to the position that suits the engine
temperature:
g if the engine is cold
< for warm start – also use this posi
tion if the engine has been running
but is still cold.
-
Cranking
N Remove the chain scabbard. Check
that the chain is not touching the
ground or any other obstacles.
N Place the unit on the ground: It must
rest securely on the engine support
and the hook. If necessary, rest the
hook on a raised support (e.g. a
branch, mound or something
similar).
WARNING
Check that nobody is standing within the
working range of the pruner.
N Make sure you have a safe and
secure footing.
N Hold the unit with your left hand on
the fan housing and press it down
firmly – your thumb should be under
the fan housing.
NOTICE
Do not stand or kneel on the drive tube.
N Hold the starter grip with your right
hand.
N Pull the starter grip slowly until you
feel it engage and then give it a brisk
strong pull.
20
HT 102, HT 103, HT 132, HT 133
English
NOTICE
Do not pull out the starter rope all the
way – it might otherwise break.
N Do not let the starter grip snap back.
Guide it slowly back into the housing
so that the starter rope can rewind
properly.
N Continue cranking until the engine
runs.
As soon as the engine runs
N Press down the throttle trigger
lockout and open the throttle – the
choke knob moves to the run
position F. After a cold start, warm
up the engine by opening the
throttle several times.
WARNING
Risk of injury from saw chain running
when the engine is idling. Adjust the
carburetor so that the saw chain does
not run when the engine is idling – see
“Adjusting the Carburetor”.
Your machine is now ready for
operation.
Stopping the Engine
N Depress the stop switch – the
engine stops – release the stop
switch – it springs back to the run
position.
Other Hints on Starting
Engine stalls in cold start position g or
under acceleration.
N Move the choke knob to < and
continue cranking until the engine
runs.
Engine does not start in warm start
position <
N Move the choke knob to g and
continue cranking until the engine
runs.
0000-GXX-1558-A0
If the engine does not start
N Check that all settings are correct.
N Check that there is fuel in the tank
and refuel if necessary.
N Check that the spark plug boot is
properly connected.
N Repeat the starting procedure.
Engine is flooded
N Move the choke knob to F and
continue cranking until the engine
runs.
Fuel tank run until completely dry
N After refueling, press the manual
fuel pump bulb at least five times –
even if the bulb is already filled with
fuel.
N Set the choke knob to suit the
engine temperature.
N Now start the engine.
HT 102, HT 103, HT 132, HT 133
21
English
Operating Instructions
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
NOTICE
Do not make the mixture leaner to
achieve an apparent increase in power –
this could damage the engine – see
"Adjusting the Carburetor".
Check chain tension frequently
A new chain has to be retensioned more
often than one that has been in use for
some time.
Chain cold
Tension is correct when the chain fits
snugly against the underside of the bar
and can still be pulled along the bar by
hand. Retension if necessary – see
"Tensioning the Saw Chain".
Chain at operating temperature
The chain stretches and begins to sag.
The drive links must not come out of the
bar groove – the chain may otherwise
jump off the bar. Retension the chain –
see "Tensioning the Saw Chain".
NOTICE
The chain contracts as it cools down. If it
is not slackened off, it can damage the
gear shaft and bearings.
After long period of full-throttle operation
Allow engine to run for a short while at
idle speed so that engine heat can be
dissipated by the flow of cooling air. This
protects engine-mounted components
(ignition, carburetor) from thermal
overload.
After Finishing Work
N Slacken off the chain if you have
retensioned it at operating
temperature during cutting work.
NOTICE
Always slacken off the chain after
finishing work. The chain contracts as it
cools down. If it is not slackened off, it
can damage the gear shaft and
bearings.
Storing your saw for a short period
Fit the chain scabbard and allow engine
to cool down. To avoid condensation, fill
the fuel tank and keep the machine in a
dry place, well away from sources of
ignition, until you need it again.
Storing for a long period
See chapter on "Storing the Machine"
22
HT 102, HT 103, HT 132, HT 133
English
1
2
3
246BA028 KN
1
1
0000-GXX-0482-A0
2
3
4
Taking Care of the Guide Bar
N Turn the bar over every time you
sharpen the chain and every time
you replace the chain – this helps
avoid one-sided wear, especially at
the nose and underside of the bar.
N Regularly clean the oil inlet hole (1),
the oilway (2) and the bar
groove (3).
N Measure the groove depth – with the
scale on the filing gauge (special
accessory) – in the area used most
for cutting.
The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the bar rails.
Replacing the Air Filter
Filters have an average life of more than
a year. Do not remove the filter cover or
replace the air filter as long as there is no
noticeable loss of power.
If there is a noticeable loss of engine
power
N Turn the choke knob to g.
N Loosen the screws (1).
N Remove the filter cover (2).
N Clean away loose dirt from around
the filter.
N Remove the filter element (3).
N Replace dirty or damaged filter
element (3).
N Replace any damaged parts.
Installing the Filter Element
Chain type Chain pitch Minimum
groove depth
Picco 1/4" P 4.0 mm
(0.16 in)
If groove depth is less than specified:
N Replace the guide bar.
HT 102, HT 103, HT 132, HT 133
N Install the filter element (3) in the
filter housing and fit the cover.
N Insert the screws (1) and tighten
them down firmly.
23
English
0000-GXX-0495-A0
0000-GXX-0486-A0
4
5
Engine Management Adjusting the Carburetor
Exhaust emissions are controlled by the
design of the engine and components
(e.g. carburation, ignition, timing and
valve or port timing).
The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting Idle Speed
Engine stops while idling
N Warm up the engine for about
3 minutes.
N Turn the idle speed screw (LA)
slowly clockwise until the engine
runs smoothly – the saw chain must
not rotate.
Chain rotates when engine is idling
N Turn the idle speed screw (LA)
counterclockwise until the chain
stops running and then turn the
screw another 1/2 to 3/4 turn in the
same direction.
Spark Arresting Screen in
Muffler
N If the engine is down on power,
check the spark arresting screen in
the muffler.
N Wait for the muffler to cool down.
N Take out the screw (4).
N Lift the spark arresting screen (5)
and pull it out.
N Clean the spark arresting
screen (5). If the screen is damaged
or heavily carbonized, install a new
one.
N Refit the spark arresting screen (5).
N Insert the screw (4) and tighten it
down firmly.
24
WARNING
If the chain continues moving when the
engine is idling, have your power tool
checked and repaired by your servicing
dealer.
HT 102, HT 103, HT 132, HT 133
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