STIHL MSA 161 T Handy Battery Chainsaw Instruction Manual

: June 9, 2024
: STIHL

MSA 161 T Handy Battery Chainsaw
Instruction Manual

Introduction

Dear Customer,
Thank you for choosing STIHL. We develop and manufacture our quality products to meet our customers’ requirements. The products are designed for reliability even under extreme conditions.
STIHL also stands for premium service quality. Our dealers guarantee competent advice and instruction as well as comprehensive service support.
STIHL expressly commits itself to a sus‐ tainable and responsible handling of natural resources. This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long service life.
We thank you for your confidence in us and hope you will enjoy working with your STIHL product. Printed on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.

Dr. Nikolas Stihl

IMPORTANT! READ BEFORE USING AND
KEEP IN A SAFE PLACE FOR REFERENCE.
2 Guide to Using this Manual
2.1
Applicable Documentation
Local safety regulations apply.

Overview

► Read, understand and save the following documents in addition to this instruction manual:
– Safety notes and precautions for STIHL AP battery
– Instruction manual for STIHL AL 101, 300, 500 chargers
– Safety information for STIHL batteries and products with built-in batteries: www.stihl.com/safety-data-sheets

2.2 Symbols in Text
This symbol refers to a chapter in this instruction manual.
2.3 Symbols used with warnings in the text

WARNING
■ This symbol indicates dangers that can cause serious injuries or death.
► The measures indicated can avoid serious injuries or death.

NOTICE
■ This symbol indicates dangers that can cause damage to property.
► The measures indicated can avoid damage to property.

Overview

3.1 Chainsaw and Battery

Chain Sprocket
A toothed wheel that drives the chain.
Tensioning Screw
Adjusts chain tension.
Spiked Bumper
Toothed stop for holding saw steady against the wood while cutting.
Chain Catcher
Reduces risk of operator contact with the chain if it comes off the bar or breaks.
Guide Bar
Supports and guides the saw chain.
Saw Chain
Cuts the wood.
Chain Sprocket Cover
Covers the chain sprocket and secures the guide bar to the chainsaw.
Nut
Secures chain sprocket cover to a chainsaw.
Chain Scabbard
Helps protect users from contact with the saw chains.
Front Hand Guard
Helps protect the operator’s left hand from contact with the saw chain, serves to engage the chain brake, and activates the chain brake by inertia in certain kickback situations.
Ergo Lever
Holds lockout button in position when trigger is released.
Lockout Button
Unlocks the trigger.
Control Handle
For operating, holding and controlling the chainsaw.
Locking Lever
Secures the battery in the battery compartment.
Battery Compartment
Accommodates the battery.
Oil Tank Cap
Closes the oil tank.
Handlebar
For holding, controlling and carrying the chainsaw.
Trigger
Switches the chainsaw on and off.
Ring
For hanging up the saw while working in the tree.
Battery
Supplies power to the chainsaw.
Button
Activates the LEDs on the battery.
LEDs
Indicate battery’s state of charge and mal‐ functions.

Rating Label with Serial Number

Symbols
Meanings of symbols that may be on the chain-saw and battery:

| This symbol shows the direction of rotation of the chain.
---|---
Turn in this direction to tension the saw chain.
This symbol marks the chain oil tank.
The chain brake is engaged in this direction.
The chain brake is disengaged in this direction.
1 LED glows red. Battery is too hot or too cold.
4 LEDs flash red. There is a malfunction in the battery.
Length of guide bar that may be used.
Guaranteed sound power level accord‐ ing to directive 2000/14/EC in dB(A) in order to make sound emissions of
products comparable.
The data next to this symbol indicates the energy content of the battery according to the cell manufacturer’s specification. The energy content available during operation is lower.
Do not dispose of the product with your household waste.

Safety Precautions

4.1 Warning Symbols
Meanings of warning symbols on the chainsaw or the battery:
**** Observe safety notices and take the necessary precautions.
Read, understand and keep the User Manual.

| Wear safety glasses and a hard hat.
---|---
Wear long trousers with cut-retardant inserts and cut-retardant sleeves on
both arms.
Hold the saw firmly with both hands.
Observe the safety notices on kickback and take the necessary precautions.
Only persons who have been trained in the use of a tree service chainsaw may use this chainsaw.
Remove the battery during work stoppages, transport, storage, maintenance
or repair.
Protect the battery from heat and fire.
Do not immerse the battery in fluids.
Observe the permitted battery temperature range.

Intended Use
The STIHL MSA 161 T tree service chainsaw is designed for tree surgery work and cutting in the crown of the standing tree.
The chainsaw must not be used for cutting work on the ground.
The chainsaw may be used in the rain.
The chainsaw is powered by a STIHL AP battery or a STIHL AR battery.
When climbing in a tree, the chainsaw may be used only with a STIHL AP battery inserted directly in the saw.

WARNING
■ Batteries not explicitly approved for the chain‐ saw by STIHL may cause a fire or explosion. This can result in serious or fatal injuries and damage to property.

Safety Precautions

► Use the chainsaw with a STIHL AP battery or a STIHL AR battery.
■ Using the chainsaw or the battery for purposes for which they were not intended may result in serious or fatal injuries and damage to prop‐ erty.
► Use the chainsaw as described in this instruction manual.
► Use the battery as described in this instruction manual or the instruction manual forthe STIHL AR battery.

The Operator
WARNING
■ Persons who have not been trained in tree surgery and maintenance techniques with a tree service chainsaw cannot recognize or assess the dangers of the chainsaw or the battery. The user or other persons may sus‐ tain serious or fatal injuries.
► Read, understand and save the instruction manual.

► Only persons who have been trained in the use of a tree service chainsaw may use this chainsaw.
► If the chainsaw or battery is passed on to another person: Always give them the instruction manual.
► Make sure the user meets the following requirements:
– The user must be rested.
– The user must be in good physical condition and mental health to operate and work with the chainsaw and battery. If the user’s physical, sensory or mental ability is restricted, he or she may work only under the supervision of or as instructed by a responsible person.
– The user is able to recognize and assess the risks involved in using the chainsaw and battery.
– The user must be of legal age or is being trained in a trade under supervision in accordance with national rules and regulations.
– The user must not be under the influence of alcohol, medication or drugs.
► If you have any queries: Contact a STIHL servicing dealer for assistance.

Clothing and equipment
WARNING
■ Long hair may be pulled into the chainsaw while working. This may result in serious injury to the user.
► Tie up and confine long hair above your shoulders.
■ Objects can be thrown at high speed during operation. This may result in injury to the user.
► Wear close-fitting safety glasses. Suitable safety glasses are tested in accordance with EN 166 or national regulations and available commer‐ cially with the corresponding marking.
► STIHL recommends wearing a face mask.
► Wear a long-sleeved, close-fitting top.
■ Falling objects can cause head injuries.
► If objects are likely to fall while working: wear a hard hat.

Dust can be whipped up during operation: Whipped up dust can damage the respiratory passages and cause allergic reactions.
► If dust is whipped up or forms a cloud: Wear a dust respirator mask. Unsuitable clothing can snag on wood or scrub and may become caught in the chain saw. Users not wearing suitable clothing are at risk of serious injury.
► Wear close-fitting clothing.
► Remove scarves and jewelry.
The user may come into contact with the mov‐ ing saw chain while working. This may result in serious injury to the user.
► Wear long trousers with cut-retard‐ ant inserts and cut-retardant sleeves on both arms.

► Wear long trousers with cut protection.
■ The user may cut himself or herself on wood while working. The user may come into con‐ tact with the saw chain during cleaning or servicing. This may result in injury to the user.
► Wear work gloves made from resistant material.
■ Wearing unsuitable footwear may cause the user to slip. If the user comes into contact with the moving saw chain, he or she may suffer cuts. This may result in injury to the user.
► Wear chainsaw boots with cut protection.
■ When working in a tree there is risk of the operator falling. This may result in a serious or fatal injury to the user.
► Use personal fall protection equipment
4.5 Work Area and Surroundings
4.5.1 Chainsaw
WARNING
■ Bystanders, children and animals are not aware of the dangers of chainsaws or thrown objects. Innocent bystanders, children and animals may be seriously injured and damage to property may occur.
► Keep bystanders, children and animals away from the work area.
► Do not leave the chainsaw unattended.
► Make sure that children cannot play with the chainsaw.
■ Electrical components of the chainsaw can produce sparks. Sparks may cause a fire or an explosion in an easily combustible or explosive environment. This can result in serious or fatal injuries and damage to property.
► Do not work in an easily combustible or explosive environment.

4.5.2 Battery
WARNING
■ By standing people, children and animals can‐ not recognize or evaluate the dangers posed by the battery. This may result in serious injury to bystanding people, children and animals.
► Keep standing people, children and animals out of the way.
► Do not leave the battery unattended.
► Make sure that children cannot play with the battery.
■ The battery is not protected against all ambient conditions. If exposed to certain ambient conditions, the battery may catch fire or explode. This may result in serious injury to people and damage to property.

| ► Protect the battery from heat and fire.
► Do not throw the battery into a fire
---|---
.► Use and store the battery at temperatures between ‑ 10 °C and + 50 °C.
► Do not immerse the battery in liq‐ uids.

► Keep the battery away from metallic objects.
► Do not expose the battery to high pressure.
► Do not expose the battery to microwaves.
► Protect the battery from chemicals and salts.

Safe Condition

4.6.1 Chainsaw
The chainsaw is in a safe condition if the follow‐ ing points are observed:

The chainsaw is not damaged.
The chainsaw is clean.
The chain catcher is not damaged.
The chain brake is operating properly.
The controls function properly and have not been modified.
The chain lubrication is operating properly.
Wear marks on the chain sprocket are not deeper than 0.5 mm.
A combination of the guide bar and saw chain recommended in this User Manual is mounted.
The guide bar and saw chain are properly mounted.
The saw chain is properly tensioned.
Only original STIHL accessories designed for this chainsaw model are fitted.
The accessories are correctly attached.
The oil tank cap is closed.

WARNING
■ If not in safe condition, components may no longer operate correctly and safety devices may be disabled. This may result in serous or fatal injury to people.
► Work only with an undamaged chainsaw.
► If the chainsaw is dirty: Clean the chainsaw.
► Work only with an undamaged chain catcher.
► Never modify your chainsaw. Exception: Mounting a combination of guide bar and saw chain recommended in this User Man‐ ual.
► If the controls do not function properly: Do not use your chainsaw.
► Only fit original STIHL accessories designed for this chainsaw model.
► Mount the guide bar and saw chain as described in this User Manual.
► Attach accessories as described in this User Manual or in the User Manual for the accessories.
► Never insert objects in the chainsaw’s openings.
► Replace worn or damaged labels.
► If you have any doubts, be sure to consult a STIHL dealer.

4.6.2 Guide Bar
The guide bar is in a safe condition if the follow‐ ing points are observed:
– Guide bar is not damaged.
– Guide bar is not deformed.
– The minimum groove depth is maintained, 19.3.
– Bar rails are free from burrs.
– Bar groove is not pinched or splayed.
WARNING
■ If the guide bar is not in a safe condition, it can no longer support and guide the saw chain properly. The rotating saw chain can jump off the guide bar. This can result in serious or fatal injuries.
► Work only with an undamaged guide bar.
► If the groove depth is less than the mini‐ mum depth: Mount a new guide bar.
► Deburr the guide bar every week.
► If you have any queries: Contact your STIHL servicing dealer.

4.6.3 Saw Chain
The saw chain is in a safe condition if the follow‐ ing points are observed:
– Chain is not damaged.
– Chain is properly sharpened.
– The service marks on the cutters are still visible.
WARNING
■ If components do not comply with safety requirements, they will no longer function properly and safety devices may be rendered inoperative. This can result in serious or fatal injuries.
► Work only with an undamaged saw chain.
► Sharpen the chain properly.
► If you have any queries: Contact your STIHL servicing dealer for assistance.
4.6.4 Battery
The battery is in safe condition when the follow‐ ing conditions are met:
– The battery is not damaged.
– The battery is clean and dry.
– The battery is working and has not been modified.
WARNING
■ The battery cannot function safely if it is not in safe condition. There is a risk of serious injury to persons.
► Use an undamaged and functioning battery.
► Do not charge a damaged or defective bat‐ tery.
► If the battery is dirty or wet: clean the bat‐ tery and allow it to dry.
► Do not modify the battery.
► Do not insert objects into the apertures in the battery.
► Never connect the battery terminals to met‐ allic objects and cause a short circuit.
► Do not open the battery.
► Replace worn or damaged warning signs.
■ Fluid may leak from a damaged battery. If the fluid contacts the skin or eyes, this may cause irritation.
► Avoid contact with the fluid.
► In the event of contact with the skin: wash the affected areas with plenty of soap and water.
► In the event of contact with the eyes: rinse the eyes with plenty of water for at least 15 minutes and seek medical attention.
■ A damaged or defective battery may emit an unusual odour, smoke or catch fire. This may result in serious or fatal injury to people and damage to property.
► If the battery emits an unusual odour or smoke: do not use the battery and keep it away from flammable materials.
► If the battery catches fire: try to extinguish the battery using a fire extinguisher or water.

4.7 Working
4.7.1
Sawing
WARNING
■ Always work within calling distance of others so that you can summon help in an emer‐ gency.
► Make sure that people are within earshot outside the working area.
■ In certain situations, the user may no longer be able to concentrate on their work. The user may lose control of the chain saw and may trip, fall and be seriously injured.
► Keep calm and plan your work.
► If light and visibility are poor: Do not use your saw.
► Use the chain saw on your own.
► Do not work above shoulder height.
► Watch out for obstacles.
► If you climb in a tree: Use a fall protection rope.
► If the saw is operated by a power supply with connecting cable: Use a lift bucket.
► If you start feeling fatigue: Take a break.If you start feeling fatigue: Take a break.
■ When working up in a tree, the chain saw may fall to the ground. This may result in serious injury to people and damage to property.
► Secure the chain saw via the ring.
■ The moving saw chain can cut the user. This may result in serious injury to the user.
► Do not touch the rotating saw chain.
► If the saw chain is blocked by an object: Switch off the chainsaw, engage the chain brake and remove the battery. Before clear‐ ing the jam.
■ The moving saw chain warms up and expands. If the saw chain is not sufficiently lubricated and retensioned, the saw chain may jump off the guide bar or it may break. This
may result in serious injury to people and damage to property.
► Use saw chain lubricant.
► Check the saw chain tension regularly while working. If saw chain tension is insufficient: Tension the saw chain.
■ If the chain saw starts behaving differently or in an unusual way while operating, the chain saw may be in an unsafe condition. This may result in serious injury to people and damage to property.
► Stop working, remove the battery and con‐ sult a STIHL dealer.
■ The chain saw may cause vibrations in opera‐ tion.
► Wear gloves.
► Take breaks.
► If signs of a circulatory disturbance occur: Consult a doctor.
■ If the moving saw chain hits a hard object, sparks may occur. Sparks can cause fires in a flammable environment. Persons may be seri‐ ously or fatally injured and property may be damaged.
► Do not use the chain saw in a flammable environment.
■ The saw chain runs on for a short period after you release the trigger. People may be cut by the moving saw chain. They may cause seri‐ ous injury to persons.
► Wait for the saw chain to stop moving.

WARNING

■ If you saw wood that is under tension, the guide bar may become jammed. The user may lose control of the chain saw and be seriously injured.
► Make a relieving cut (1) in the compression side (A) first, then perform a bucking (2) cut at the tension side (B) from above, directly above the first cut.
DANGER
■ Working near live electric cables may result in accidental contact with the saw chain and damage the cables. This may result in a serious or fatal injury to the user.
► Do not operate in the vicinity of live wires.
4.7.2
Felling
WARNING
■ Inexperienced users cannot assess the dangers of felling a tree. This can result in serious or fatal injuries and damage to property.
► If you have any queries: Do not fall the tree yourself.
■ Parts of the tree being removed and branches can fall on bystanders or objects during the felling operation. This can result in serious or fatal injuries and damage to property.
► Determine the direction of fall so that the area in which the part of the tree being removed falls is clear.
► Do not allow bystanders, children or animals within 2.5 tree lengths of the work area.

4.8 Reactive Forces
4.8.1 Kickback

Kickback can be caused for the following rea‐ sons:
– The rotating saw chain in the upper quadrant of the bar nose makes contact with a hard object and is suddenly braked.
– The rotating saw chain is pinched at the bar nose.
The chain brake cannot prevent kickback.
WARNING

■ If kickback occurs, the saw can be thrown up in the direction of the operator. Due to the spe‐ cial handle design (closely spaced handles) there is a risk of the operator losing control of the chainsaw and sustaining serious or fatal injuries.
► Hold the saw firmly with both hands.
► Always keep your body out of the plane of the cutting attachment.
► Use the working techniques described in this instruction manual.
► Do not cut with the upper quadrant of the bar nose.
► Always cut with a properly sharpened and tensioned saw chain.
► Use a reduced kickback saw chain.
► Use a guide bar with a narrow radius nose.
► Always cut with the chain running at full speed.

4.8.2 Pull-in.

.

The saw is pulled away from the operator when the bottom of the bar is used for cutting.
WARNING
■ If the rotating chain makes contact with a hard object and is suddenly pinched, the saw is abruptly jerked away from the operator. The operator can lose control of the saw and be seriously or fatally injured.
► Hold the saw firmly with both hands.
► Operate the saw as described in this instruction manual.
► Keep the guide bar straight in the cut.
► Apply the spiked bumper properly.
► Always cut with the chain running at full speed.

4.8.3 Pushback

The saw is pushed back toward the operator when the top of the bar is used for cutting.
WARNING
■ If the rotating chain makes contact with a hard object and is suddenly pinched, the saw can be abruptly pushed back toward the operator. The operator can lose control of the saw and be seriously or fatally injured.
► Hold the saw firmly with both hands.
► Operate the saw as described in this instruction manual.
► Keep the guide bar straight in the cut.
► Always cut with the chain running at full speed.

4.9 Transporting
4.9.1 Chainsaw
WARNING
■ The saw may turn over or shift during transport. This may result in personal injuries and damage to property.
► Remove the battery.
► Engage the chain brake.
► Fit the scabbard so that it completely cov‐ ers the guide bar.
► Secure the chainsaw with lashing straps or a net to prevent it from turning over and moving.

4.9.2
Battery
WARNING
■ The battery is not protected against all ambient conditions. The battery may be damaged if it is exposed to certain ambient conditions and damage to property may occur.
► Never transport a damaged battery.
► Store the battery in non-conductive packaging.
■ The battery may turn over or shift during transport. This may result in personal injuries and damage to property.
► Pack the battery in the packaging in such a way that it cannot move.
► Secure the packaging so that it cannot move.

4.10 Storing
4.10.1 Chainsaw
WARNING
■ Children are not aware of and cannot assess the dangers of a chainsaw and can be seri‐ ously injured.
► Remove the battery.
► Engage the chain brake.
► Fit the scabbard so that it completely cov‐ ers the guide bar.
► Store the saw out of the reach of children.
■ Dampness can corrode the electrical contacts on the saw and metal components. This can damage the saw.

► Remove the battery.
► Store the saw in a clean and dry condition.
4.10.2 Battery
WARNING
■ Children are not aware of and cannot assess the dangers of the battery and can be seriously injured.
► Store the battery out of the reach of children.
■ The battery is not protected against all ambient conditions. The battery may be damaged if it is exposed to certain ambient conditions.
► Store the battery in a clean and dry condition.
► Store the battery in an enclosed location.
► Store the battery separately from the chain saw and charger.
► Store the battery in non-conductive packaging.
► Store the battery at temperatures between -10°C and +50°C.
4.11 Cleaning, Maintenance and
Repair
WARNING
■ The saw may start unintentionally if the battery is left in place during cleaning, maintenance or repair operations. This may result in serious injury to people and damage to property.
► Remove the battery.
► Engage the chain brake.
■ Aggressive cleaning agents, a water jet or pointed objects can damage the chainsaw, guide bar, the saw chain and battery. If the saw, guide bar, saw chain or battery are not
cleaned correctly, components may no longer function properly or safety devices may be rendered inoperative. They may cause serious injury to persons.
► Clean the saw, guide bar, saw chain and battery as described in this instruction manual.
■ If the saw, guide bar, saw chain or battery are not properly serviced or repaired, components may no longer function properly or safety devices may be rendered inoperative. This may result in serious or fatal injury to people.

Preparing the Saw for Operation

► Do not attempt to service or repair the chainsaw or battery.
► If the chainsaw or the battery require servicing or repairs: Contact your STIHL servicing dealer for assistance.
► Service or repair the guide bar and saw chain as described in this User Manual.
■ The user may be cut by the sharp cutters while cleaning or servicing the saw chain. This may result in injury to the user.
► Wear work gloves made from resistant material.

5 Preparing the Saw for Operation 5.1
Preparing the Saw for Opera‐ tion
Perform the following steps before starting work:
► Make sure the following components are in a safe condition: – Chain saw, 4.6.1.
– Guide bar, 4.6.2.
– Saw chain, 4.6.3.
– Battery, 4.6.4.
► Check the battery, 10.7.
► Recharge the battery fully as described in the instruction manual for the STIHL AL 101, 300, 500 chargers.
► Clean the saw, 15.1.
► Mount the bar and chain, 6.1.1.
► Tension the saw chain, 6.2.
► Fill up with chain oil, 6.3.
► Check the chain brake, 10.4.
► Check the controls, 1 0.5.
► Check chain lubrication, 10.6.
► If you cannot carry out this work: Do not use your chainsaw and contact your STIHL servicing dealer for assistance.
6 Assembling the Saw
6.1 Mounting and Removing the
Bar and Chain 6.1.1
Mounting the Guide Bar and Saw Chain
The guide bar and saw chain combinations that can be used with the chain sprocket are listed in the specifications, 20.
► switch off chain saw, engage chain brake and remove the battery

► Turn the tensioning screw (3) counterclockwise until the tensioner slide (4) butts against the left end of the housing. ► Fit the saw chain in the guide bar groove so that the arrows on the tie straps on the top of the bar point in the direction of rotation.

► Fit the guide bar and chain on the saw and check the following points:
– The drive links of the saw chain are seated in teeth of the chain sprocket (5).
– The head of screw (6) is seated in the slot in the guide bar (8).
– The peg of tensioner slide (4) engages the hole (7) in guide bar (8).
The guide bar (8) may be fitted either way round. The logo on the guide bar (8) may also be upside down.
► Disengage the chain brake.

► Turn the tensioning screw (3) clockwise until the saw chain fits snugly against the guide bar. Make sure the drive links of the saw chain engage the guide bar groove.
The guide bar (8) and saw chain are posi‐ tioned against the chainsaw.
► Fit the chain sprocket cover (1) so that it is flush with the chainsaw.
► Fit and tighten down the nut (2). 6.1.2
Removing the Bar and Chain
► Switch off the chainsaw, engage the chain brake and remove the battery.
► Unscrew the nut.
► Remove the sprocket cover.
► Turn the tensioning screw counterclockwise as far as stop.
The chain is now slack.
► Remove the bar and chain. 6.2
Tensioning the Saw Chain
The saw chain expands or contracts during cut‐ ting work. Chain tension changes as a result. Check chain tension regularly during operation and readjust if necessary.
► Switch off the chainsaw, engage the chain brake and remove the battery.

► Loosen the nut (2).
► Disengage the chain brake.
► Hold the bar nose up and turn the tensioning screw (1) clockwise until the following points apply:
– Chain sag ‘a’ in the center of the bar is 1 – 2 mm.
– The chain can still be pulled easily along the bar with two fingers.
► If a Carving guide bar is used: Turn the tensioning screw (1) clockwise or counterclockwise until the drive links on the underside of the bar are just half visible.
► Hold the bar nose up and tighten down the nut (2) firmly.
► If chain sag ‘a’ in the center of the bar is not 1 – 2 mm: Readjust chain tension.
► If you use a Carving bar and the drive links on the underside of the bar are less than half visible: Readjust chain tension.
6.3 Filling Up with Saw Chain Oil
The saw chain oil lubricates and cools the rotat‐ ing chain.
STIHL recommends you use a STIHL saw chain oil or an equivalent chain oil approved for the chain‐ saws.
► switch off chain saw, engage chain brake and remove the battery
► Place your chainsaw on a level surface so that the oil tank cap faces up.
► Use a damp cloth to clean the oil tank cap and the area around it.

► Swing the grip on the oil tank cap to the verti‐ cal position.
► Turn the oil tank cap counterclockwise as far as it will go.
► Remove the oil tank cap.
► Fill up with saw chain oil, taking care not to spill any oil and not to overfill the tank.
► If the grip on the oil tank cap has dropped into the closed position: Raise the grip until it is vertical.

Engaging and Disengaging the Chain Brake

► Place the oil tank cap in the filler opening so that mark (1) lines up with mark (2).
► Press the oil tank cap down and rotate it clock-wise as far as it will go.
The oil tank cap snaps into place. The mark (1) points to mark (3).
► Check to see if the oil tank cap can be pulled upwards and off.
► If the oil tank cap cannot be pulled upwards and off: Fold down the grip on the oil tank cap. The oil tank is closed.
If the oil tank cap can be pulled upwards and off, perform the following steps:
► Place the oil tank cap in the filler opening – in any position.

► Press the oil tank cap down and rotate it clockwise as far as it will go.
► Press the oil tank cap down and rotate it counterclockwise until the mark (1) points to mark (2).
► Now try again to close the oil tank.
► If the oil tank still cannot be closed properly: Do not use the chainsaw and contact a STIHL dealer for assistance.
The chainsaw is not in a safe condition.
6.4 Mounting the Spiked Bumper

► Take out the screw (4) and remove the chain catcher (3).
► Place the spiked bumper (1) in position.
► Fit the screw (2).
► Place the chain catcher (3) in position.
► Insert and tighten down the screw (4) firmly.
► Tighten down the screw (2) firmly.

Engaging and Disengaging the Chain Brake

7.1 Engaging the Chain Brake
The saw is equipped with a chain brake.
The chain brake is activated by the inertia of the front hand guard if the kickback force is high enough or can be engaged by the operator.

► Push the handguard away from the handlebar with your left hand.
The handguard engages with an audible click.
The chain brake is engaged.
7.2 Disengaging the Chain Brake

► Pull the hand guard back towards the handle with your left hand.
The hand guard engages with an audible click.
The chain brake is disengaged.
8 Removing and Fitting the
Battery
8.1 Inserting the battery
► Engage the chain brake.

► Push the battery (1) into the battery compart‐ ment (2) as far as stop.
The battery (1) engages with a click and is now locked.
8.2 Removing the Battery
► Stand the saw on a level surace.

STIHL MSA 161 T Handle Battery Chainsaw - level
surface

► Depress both locking levers (1).
The battery (2) is unlocked and can be removed.

Switching the Saw On/Off

9.1 Switching on the chainsaw
► Hold the chain saw by the control handle with your right hand, wrapping your thumb around the control handle.
► Disengage the chain brake.
► Hold the chain saw by the handlebar with your left hand, wrapping your thumb around the handlebar.

► Press and hold the lockout button (2) with your thumb.
► Press the trigger (3) with your index finger and keep depressed.
The chain saw accelerates and the chain starts moving. Release the locking button (2).
The more you depress the trigger (3), the faster the saw chain runs.
If the ergo lever (1) is pressed, the trigger switch (3) remains unlocked. This means the trigger can be released and depressed again without having to press the locking button again.
If the trigger switch (3) and the ergo lever (1) are released, the trigger switch (3) is locked. The locking button (2) must be pressed and held again to unlock the trigger (3).

9.2 Switching Off
► Release the trigger.
The chain stops rotating.
► If the chain continues to rotate: Engage the chain brake, remove the battery and contact your STIHL servicing dealer for assistance. The saw has a malfunction.

Testing the Chain Saw and

Battery
10.1 Checking the Chain Sprocket
► Switch off the chain saw, engage the chain brake and remove the battery.
► Disengage the chain brake.
► Remove the chain sprocket cover.
► Remove the bar and chain. STIHL MSA 161 T Handle Battery Chainsaw -
Checking

► Use a STIHL gauge to check the wear marks on the sprocket.
► If wear marks are deeper than = 0.5 mm: Do not use your chain saw and contact your STIHL servicing dealer.
The chain sprocket must be replaced.
10.2 Checking the Guide Bar
► Switch off the chain saw, engage the chain brake and remove the battery.
► Remove the chain and guide bar.

Testing the Chain Saw and Battery

► Measure depth of bar groove with the scale on STIHL filing gauge.
► Install a new guide bar if one of the following points apply:
– Guide bar is damaged.
– Measured bar depth is less than specified minimum depth, 19.3. – Bar groove is pinched or splayed.
► If you have any queries: Contact your STIHL servicing dealer.
10.3 Checking the Saw Chain
► Switch off the chainsaw, engage the chain brake and remove the battery.

► Use a STIHL filing gauge (2) to check the height of the depth gauges (1). The STIHL fil‐ ing gauge must match the chain pitch.
► If a depth gauge (1) projects from the filing gauge (2): Lower the depth gauge (1), 16.3.

► Make sure the service marks (1 to 4) on the cutters are visible.
► If one of the service marks is not visible on cutter: Do not use your chainsaw and contact your STIHL servicing dealer.
► Use a STIHL filing gauge to check that a filing angle of 30° has been maintained on all cut‐ ters. The STIHL filing gauge must match the chain pitch.
► If a filing angle of 30° has not been main‐ tained: Resharpen the saw chain.
► If you have any queries: Contact your STIHL servicing dealer for assistance.

10.4 Testing the Chain Brake
► Switch on the saw.
► Engage the chain brake.
The chain brake is operating properly If the chain stops immediately.
► If the chain does not stop immediately: Do not use your chainsaw and contact your STIHL servicing dealer for assistance. The chain brake is defective.

10.5 Checking the controls
Lockout button, Ergo lever and trigger
► Engage chain brake and remove battery.
► Attempt to pull the trigger lever without depressing the lockout button.
► If the trigger can be pulled: Do not use your chainsaw and contact your STIHL servicing dealer.
The lockout button is defective.
► Press and hold the lockout button.
► Press and hold Ergo lever.
► Press the trigger.
Release the locking button.
► Release the trigger and the Ergo lever.
► If either the lockout button, Ergo lever or the trigger is stiff or does not spring back to the idle position: Do not use the chainsaw and contact your STIHL servicing dealer for assis‐ tance. The lockout button, Ergo lever or trigger is defective.

Switching on the chainsaw
► Insert battery.
► Disengage the chain brake.
► Press and hold the lockout button.
► Press and hold the trigger.
The saw chain starts running.
► If 3 LEDs flash red: Remove the battery and consult a STIHL dealer.
Malfunction in saw.
► Release the trigger.
The saw chain stops running.
► If the chain continues to rotate: Engage the chain brake, remove the battery and contact your STIHL servicing dealer. Your saw has a malfunction.

10.6 Checking Chain Lubrication
► Fit the battery.
► Disengage the chain brake.
► Hold the guide bar over a light surface.
► Switch on the saw.
Chain oil is thrown off the chain and is visible on the light surface. Chain lubrication is oper‐ ating properly.
10.7 Testing the Battery
► Press button on battery.
The LEDs glow or flash.
► If the LEDs do not glow or flash: Do not use the battery and contact your STIHL servicing dealer.
There is a malfunction in the battery.
11 Operating the Saw
11.1 Holding and Controlling the Chainsaw STIHL MSA 161 T Handle Battery
Chainsaw - Controlling

► Hold and control your saw with your left hand on the front handle and your right hand on the control handle. Wrap thumb of left hand around the front handle and thumb of right handle around the control handle.
WARNING
■ The risk of kickback is increased if you use the chainsaw with one hand. If kickback occurs, the saw can be thrown up in the direction of the operator. The operator can lose control of the saw and be seriously or fatally injured.
► Do not cut with the upper quadrant of the bar nose.
► Never support yourself on the limb being cut.
► Never attempt to hold falling limbs. The saw may be used with one hand if the fol‐ lowing points apply:
– Two-handed cutting is not possible.
– One hand is required for support during the cut.
– The saw can be held firmly with one hand.

Operating the Saw

– All parts of your body are clear of the cutting attachment.
11.2 Cutting
WARNING
■ If kickback occurs, the saw can be thrown up in the direction of the operator. This can result in serious or fatal injuries.
► Always cut with the chain running at full speed.
► Do not cut with the upper quadrant of the bar nose.
► Begin the cut with the chain running at full speed and keep the guide bar vertical.

STIHL MSA 161 T Handle Battery Chainsaw - vertical

► Engage the spiked bumper and use it as a ful‐ crum.
► Guide the full width of the bar into the wood and reposition the spiked bumper as required.
► Take the weight of the saw at the end of the cut.
1 1.3 Limbing
► With the chain running a full speed, pivot the guide bar downward against the limb.

► Make a relieving cut (1) in the compression side (A) first, then perform a bucking (2) cut at the tension side (B) from above, directly above the first cut.
► Make the last cut (3) close to the trunk without damaging the bark.

After Finishing Work

11.4 Felling
11.4.1 Basic information on felling cut

A Felling notch
The felling notch determines the direction of fall.
B Hinge
The hinge controls the part of the tree being removed as it drops to the ground. The width of the hinge is 1/10 of the trunk diameter.
C Felling cut
The tree is felled with the felling cut.
11.4.2 Cutting the felling notch
The felling notch determines the direction in which the part of the tree being removed falls. Country-specific standards for making the felling notch must be observed.

STIHL MSA 161 T Handle Battery Chainsaw - Cutting

► Position the saw so that the felling notch is at right angles to the direction of fall.
► Make the horizontal cut.
► Make the angle cut at 45° to the horizontal cut.
11.4.3 Making the felling cut

► Make horizontal felling cut, taking care not to cut through the hinge.
► Shout a warning.
► Push the part of the tree being removed down‐ ward over the hinge.
The part of the tree to be removed falls.
12 After Finishing Work
12.1 After Finishing Work
► Switch off the chainsaw, engage the chain brake and remove the battery.
► If the saw is wet: Allow the saw to dry.
► If the battery is wet: Allow the battery to dry.
► Clean the saw.
► Clean the bar and chain.
► Loosen nut on the chain sprocket cover.
► Turn the tensioning screw two full turns coun‐ terclockwise.
The chain is now slack.
► Tighten down the nut.
► Fit the scabbard so that it completely covers the guide bar.
► Clean the battery.

Transporting

13.1 Transporting the Chainsaw

► switch off the chain saw, engage chain brake and remove the battery
► Fit the chain scabbard so that it completely covers the guide bar.
Carrying the chainsaw
► Carry the chainsaw by holding the front handle in your right hand with the guide bar pointing to the rear.
Carrying the chainsaw in a vehicle
► Secure the saw to prevent turnover and movement.
Transporting the Chainsaw by the Eyelet

► Transport the chainsaw using the eyelet (1) on the belt or on a rope.
13.2 Transporting the Battery
► Switch off the chain saw, engage the chain brake and remove the battery.

► Make sure the battery is in a safe condition.
► Observe the following points when packing the battery:
– The packaging must be non-conductive.
– Make sure the battery cannot shift inside the packaging.
► Secure the packaging so that it cannot move The battery is subject to the requirements for the transport of dangerous goods. The battery is classified as UN 3480 (lithium-ion batteries) and has been tested in accordance with UN Manual of Tests and Criteria, Part III, sub-section 38.3.For transport regulations see www.stihl.com/safety-data-sheets

Storing

14.1 Storing the Chainsaw
► Switch off the chainsaw, engage the chain brake and remove the battery.
► Fit the scabbard so that it completely covers the guide bar.
► Observe the following points when storing the saw:
– Saw is out of the reach of children.
– The saw is clean and dry.
► If you store the saw for more than 3 months: Remove the bar and chain.

14.2 Storing the Battery
STIHL recommends that you store the battery with a charge between 40% and 60% (2 LEDs glow green).
► Observe the following points when storing the battery:
– Battery is out of the reach of children.
– Battery is clean and dry.
– Battery is in an enclosed space.
– Store the battery separately from the saw and charger.
– Battery is in non-conductive packaging.
– Battery is in a temperature range between
-10°C and +50°C.

Cleaning

15.1 Cleaning the chainsaw
► switch off the chain saw, engaging chain brake and removing battery
► Clean the chainsaw with a damp cloth or STIHL resin solvent.
► Clean vents with a paintbrush.
► Remove the chain sprocket cover.
► Clean the area around the chain sprocket with a damp cloth or STIHL resin solvent.
► Remove foreign objects from the battery compartment and clean the battery compartment with a damp cloth.
► Clean the electrical contacts in the battery compartment with a paintbrush or soft brush.
► Fit the chain sprocket cover.

15.2 Cleaning the Bar and Chain
► Switch off the chainsaw, engage the chain brake and remove the battery.
► Remove the bar and chain. .0000-GXX-3212-A0
► Clean the oil port (1), oil inlet hole (2) and bar groove (3) with a soft brush or STIHL resin solvent.
► Clean the saw chain with a soft brush or STIHL resin solvent.
► Mount the bar and chain.
15.3 Cleaning the Battery
► Clean the battery with a damp cloth.

Maintenance

16.1 Maintenance Intervals
The maintenance intervals are dependent on the environmental and operating conditions. STIHL recommends the following maintenance inter‐ vals:
Chain brake
► Have the chain brake serviced by a STIHL servicing dealer at the following intervals:
– Full-time usage: every 3 months
– Part-time usage: every 6 months
– Occasional usage: every 12 months
Weekly
► Check the chain sprocket.
► Check and deburr the guide bar.
► Check and sharpen the saw chain.
Monthly
► Have the oil tank cleaned by a STIHL servicing dealer.

Repairing

16.2 Deburring the Guide Bar
A burr can build up on the outer edge of the guide bar.
► Remove burr with a flat file or a STIHL guide bar dressing tool.
► If you have any queries: Contact your STIHL servicing dealer.
16.3 Sharpening the Saw Chain
Correctly sharpening saw chains requires a lot of practice.
STIHL files, STIHL filing aids, STIHL sharpeners and the brochure “Sharpening STIHL Saw Chains” help you achieve the right results. To obtain the brochure visit http://www.stihl.com/sharpening-brochure. STIHL recommends you have saw chains resharpened by a STIHL servicing dealer.

WARNING
■ The chain’s cutters are very sharp. There is a risk of cut injuries.
► Wear work gloves made of durable material.

► File each cutter with a round file so that the following points are observed:

The round file matches the chain pitch.
File from the inside to the outside of the cutter.
Hold the file at right angle to the guide bar.
Maintain a filing angle of 30°.

► File down the depth gauges with a flat file so that they are level with the STIHL filing gauge and parallel to the service mark. The STIHL fil‐ ing gauge must match the chain pitch.
► If you have any queries: Contact your STIHL servicing dealer for assistance.

Repairing

17.1 Repairing the Chainsaw and Battery
The chainsaw, guide bar, saw chain and battery cannot be repaired by the user.
► If the saw, guide bar or saw chain is damaged:
Do not use your saw, guide bar or saw chain, and contact your STIHL servicing dealer for assistance.
► If the battery has a malfunction or is damaged: Replace the battery.

Troubleshooting

18.1 Troubleshooting Chainsaw or Battery

Fault	LEDs on the battery	Cause	Remedy

The saw does not start when switched on.
_.| 1 LED flashing green.| State of charge of the battery is too low.| 1,- Recharge the battery fully as described in the User Manual for the STIHL AL 101, 300, 500 chargers.
1 LED emits red light.| The battery is too warm or too cold.| ►Engage chain brake and remove battery.
►Allow the battery to cool down or warm-up.
3 LEDs flash red.| Malfunction in saw.| ►Engage chain brake and remove the battery. 1,- Clean electrical contacts in the battery compartment.
►Insert battery.
►Disengage the chain brake.
►Switch on the saw.
Fault| LEDs on the battery| Cause| Remedy
---|---|---|---
| | | ►If 3 LEDs continue to flash red: Do not use your chainsaw and contact your STIHL servicing dealer for assistance.
3 LEDs emit red light.| Chainsaw is too hot.| ►Engage chain brake and remove battery.
►Allow the chainsaw to cool down.
4 LEDs flash red.| There is a fault in the battery.| ►Engage the chain brake, remove and refit the battery.
►Disengage the chain brake.
►Switch on the saw.
►If 4 LEDs continue to flash red: Do not use the battery and contact your STIHL dealer for assistance.
| No electrical contact between the chainsaw and battery.| ►Engage chain brake and remove battery.
►Clean electrical contacts in the battery compartment.
►Insert battery.
| Saw or battery damp.| ►Allow saw or battery to dry.
Saw cuts out during operation.| 3 LEDs emit red light.| Chainsaw is too hot.| ►Engage chain brake and remove battery.
►Allow the chainsaw to cool down.
| There is an electrical fault.| ►Engage the chain brake, remove and refit the battery.
►Switch on the saw.
Chainsaw run- time is too short.| | The battery is not fully charged.| ►Recharge the battery fully as described in the User Manual for the STIHL AL 101, 300, 500 chargers.
| The battery life has been exceeded.| ►Replace battery.
Smell of smoke or burning in the cutting area.| | The saw chain has not been correctly sharpened.| Sharpen chain as specified.
| Insufficient saw chain oil in the oil tank.| Fill up with saw chain oil.
| The chain lubrication system is supplying insufficient saw chain oil.| Do not use the chainsaw. Consult a STIHL dealer.
| The saw chain is over-tensioned.| Tension the saw chain as specified.
| The chainsaw is not being used properly.| Have correct use explained, then practice.

Specifications

19.1 STIHL MSA 161 T Chainsaw
– Approved battery: STIHL AP
– Weight without battery, guide bar and saw chain 2.1 kg
– Max. oil tank capacity: 105 cc (0.105 l)
For battery life see www.stihl.com/battery-life.
19.2 Chain Sprockets and Chain Speeds
The following chain sprockets may be used: 10-tooth for 1/4” P
– Maximum chain speed according to ISO 11681: 16.1 m/s
19.3 Minimum groove depth of guide bars
The mininum groove depth depends on the pitch of the guide bar.
– 1/4″ P 4 mm
19.4 STIHL AP battery
– Battery Technology: Lithium-ion
– Voltage: 36 V
– Capacity in Ah: see rating label
– Energy content in Wh: see rating label 20 Bar and Chain Combinations
– Weight in kg: see rating label
– Permissible temperature range for operation and storage: -10°C to +50°C
19.5 Noise and Vibration Data
STIHL recommends that you wear hearing pro‐ tection.
– Sound pressure level LpA measured according to ISO 22868: 83 dB(A) K-value (uncertainty) for noise pressure level is 2 dB(A).
– Sound power level LwA measured according to ISO 22868: 94 dB(A) K-value (uncertainty) for sound power level is 2 dB(A).
– Vibration level ahv measured according to ISO 22867
– Control handle: 2.2 m/s² K-value for vibration level is 2 m/s².
– Handlebar: 2.1 m/s² K-value (uncertainty) for vibration level is 2 m/s².
The vibration values quoted above have been measured according to a standardized test pro‐ cedure and may be used to compare electric power tools. Depending on the type of usage, the vibrations that actually occur may differ from the values quoted. The vibration values quoted may be used for an initial assessment of the user’s exposure to vibrations. The actual exposure to vibrations has to be estimated. This process may also take into account times during which the electric power tool is switched off and times during which it is switched on but running offload.
19.6 REACH
REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances. For information on compliance with the REACH regulation see www.stihl.com/reach.

20 Bar and Chain Combinations
20.1 STIHL MSA 161 T Chainsaw.

Pitch| Drive link gauge/groove width| Length| Guide Bar| Nose spro- cket teeth| Number of drive links| Saw chain
---|---|---|---|---|---|---
1/4″ P| 1.1 mm| 25 cm| Rollomatic E Mini| 8| 57| 71 PM3 (Type
3670)
30 cm| 65
The cutting length of a gu.de bar depends on the chainsaw and the saw chain being used. Actual cutting length may be less than the specified length

21 Spare Parts and Accesso‐
ries
21.1 Spare parts and accessories
These symbols indicate original STIHL spare parts and original STIHL accessories.
**STIHL** recommends the use of original STIHL spare parts and accessories.
Despite ongoing market observation, STIHL is unable to judge the reliability, safety and suitability of other manufacturers’ spare parts and accessories; accordingly, STIHL cannot warrant the use of those parts.
Original STIHL spare parts and original STIHL accessories are available from STIHL dealers.

Disposal

22.1 Disposing of Chainsaw and Battery
Information on disposal is available from STIHL servicing dealers.
► Dispose of the saw, guide bar, saw chain, bat‐ tery, accessories and packaging in accord‐ ance with local regulations and environmental requirements.
23 EC Declaration of Con‐ formity
23.1 STIHL MSA 161 T Chainsaw ANDREAS STIHL AG & Co. KG Badstraße 115 D-71336 Waiblingen Germany declare under our sole responsibility that

– Category: Cordless chainsaw
– Manufacturer’s brand: STIHL
– Model: MSA 161 T:
– Serial number: 1252
conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC, 2014/30/EU and 2000/14/EC and has been developed and manu‐ factured in compliance with the following stand‐ ards in the versions valid on the date of produc‐ tion: EN 55014‑1, EN 55014‑2, EN 60745‑1 and EN 11681‑2 (where applicable). The EC type-examination test was carried out pursuant to Directive 2006/42/EC, Art. 12.3(b) at: VDE Prüf- u. Zertifizierungsinstitut (NB 0366), Merianstraße 28, 63069 Offenbach, Germany
– Certification number: 40037960 The measured and guaranteed equivalent sound power level has been determined in accordance with Directive 2000/14/EC, Annex V.
– Measured sound power level: 94 dB(A)
– Guaranteed sound power level: 96 dB(A)
The technical documents are stored at ANDREAS STIHL AG & Co. KG Produktzulas‐ sung.
The year of manufacture, country of manufacture and serial number are applied to the chainsaw. Done at Waiblingen, 03.02.2020 ANDREAS STIHL AG & Co. KG

Dr. Jürgen Hoffmann, Head of Product Data,
Regulations and Licensing

General Power Tool Safety

Warnings
24.1 Introduction
This chapter reproduces the pre-formulated, gen‐ eral safety precautions specified in the IEC 62841 standard for hand-held motor-oper‐ ated electric tools.
STIHL is obliged to publish these texts.
The safety precautions and warnings on avoiding an electric shock given under “Electrical Safety” do not apply to STIHL cordless products.

WARNING
■ Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric hock, fire and/or serious injury. Save all warnings and instructions for future reference. The term “electric power tool” in the safety warnings refers to mains-operated (corded) power tools or battery- operated (cordless) power tools.
24.2 Work area safety
a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools cre‐ ate sparks that may ignite the dust or fumes.
c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
24.3 Electrical safety
a) 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.
b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or groun‐ ded.
c) Do not expose power tools to rain or wet con‐ ditions. Water entering a power tool will increase the risk of electric shock.
d) 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 or moving parts. Damaged or entangled cords increase the risk of electric shock.
e) 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.
f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

24.4 Personal safety
a) 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 medication. A moment of inattention while operating power tools may result in serious personal injury.
b) Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appro‐ priate conditions will reduce personal injuries.
c) 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 energizing power tools that have the switch on invites accidents.
d) 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.
e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related haz‐ ards.
h) Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.
24.5 Power tool use and care
a) 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.
b) Do not use the power tool if the switch does not turn it on and off. Any power tool that can‐ not be controlled with the switch is dangerous and must be repaired.

c) Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjust‐ ments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool acci‐ dentally.
d) 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 operate the power tool. Power tools are dangerous in the hands of untrained users.
e) Maintain power tools and accessories. 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 accidents are caused by poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
g) 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.
h) Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
24.6 Battery tool use and care
a) Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
b) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
c) When the battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help.

www.stihl.com
04587919621C