STIHL MSA 120 C, MSA 140 C 2 - 31 Instruction Manual
English 1 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 con‐ ditions. STIHL also stands for premium service quality. Our dealers guarantee competent advice and instruction as well as comprehensive service support. 2 2.1 Guide to Using this Manual Applicable Documentation Local safety regulations apply.
Overview 3 English Overview 3.1 Chainsaw, Battery and Charger 5 3 4 14 12 16 14 Battery Compartment Accommodates the battery. 10 11 15 Handlebar For holding, controlling and carrying the chainsaw. 17 18 22 19 13 Locking Lever Secures the battery in the battery compart‐ ment. 9 13 15 6 # 16 Oil Tank Cap Closes the oil tank. 24 23 20 21 # 25 0000-GXX-1198-A5 26 8 1 Rear Hand Guard Protects operator’s right hand from contact with the chain if it comes off the bar or breaks.
English 4 Safety Precautions This symbol marks the chain oil tank. Observe the safety notices on kickback and take the necessary precautions. The chain brake is engaged in this direc‐ tion. The chain brake is disengaged in this direction. 1 LED glows red. Battery too hot or too cold. Protect battery from heat and fire. LED glows green and LEDs on battery glow or flash green. Battery is being charged. Protect the battery from rain and mois‐ ture and do not immerse it in liquids. LED flashes red.
4 Safety Precautions 4.3 English The Operator and using the charger for the first time. WARNING ■ Users without adequate training or instruction cannot recognize or assess the risks involved in using the chainsaw, battery and charger. The user or other persons may sustain serious or fatal injuries. ► Read, understand and save the instruction manual. ► If you pass the saw, battery and charger on to another person: Always give them the instruction manual.
English 4 Safety Precautions ■ 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. 4.5 ► Protect battery from heat and fire. ► Do not throw the battery into a fire. ► Use and store the battery at temper‐ atures between ‑ 10 °C and + 50 °C. Work Area and Surroundings 4.5.
4 Safety Precautions 4.6 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 saw is clean and dry. – 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.
English ► 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.
4 Safety Precautions English ■ Sparks may occur if the rotating chain makes contact with a hard object. Sparks may cause a fire in an easily combustible location. This can result in serious or fatal injuries and dam‐ age to property. ► Do not work in an easily combustible loca‐ tion. ■ Note that the saw chain continues to rotate for a short period after you release the trigger. The rotating saw chain can cut the user. This can result in serious injuries. ► Wait for the chain to come to a standstill.
English 4 Safety Precautions ■ If the tree does not fall all the way to the ground or gets caught on another tree, the operator cannot finish the operation in a con‐ trolled manner. ► Stop the felling operation and use a cable winch or suitable vehicle to pull the tree to the ground. 4.8.2 Pull-in Reactive Forces 4.8.1 Kickback 0000-GXX-1348-A0 4.8 ► Always cut with the chain running at full speed.
4 Safety Precautions English ► Always cut with the chain running at full speed. 4.9 Charging WARNING ■ ■ A damaged or defective charger may produce an unusual smell or emit smoke during the charging process. This may result in personal injuries and damage to property. ► Disconnect the plug from the wall outlet. ■ The charger can overheat and cause a fire if heat dissipation is inadequate. This can result in serious or fatal injuries and damage to prop‐ erty. ► Do not cover the charger. 4.
English 4 Safety Precautions ► 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 turning over and moving. 4.11.2 Battery WARNING ■ The battery is not protected against all ambi‐ ent 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.
5 Preparing the Saw for Operation 4.13 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. the battery and the charger.
English 7 Assembling the Saw charging times see www.stihl.com/chargingtimes. ► If the LED on the right flashes green: Charge the battery. The charging process starts automatically when the plug is inserted in a wall outlet and the battery is fitted in the charger. The charger switches itself off automatically when the battery is fully charged. 6.4 The battery and charger become hot during the charging process. 3 5 ► Insert the plug (6) in a convenient wall outlet (7).
7 Assembling the Saw English 6 4 4 ► Remove the tensioning gear (4). ► Take out the screw (5). ► Place the guide bar (6) on the tensioning gear (4) so that both pegs on the tensioning gear (4) engage the holes in the guide bar. The guide bar (6) may be either way round. The logo on the guide bar may also be upside down. ► Insert and tighten down the screw (5).
English 8 Engaging and Disengaging the Chain Brake ► With a suitable tool, turn the oil tank cap coun‐ terclockwise until it can be removed. ► Remove the oil tank cap. ► Fill up with saw chain oil, taking care not to spill any oil and not to overfill the tank. ► Raise the grip of the wingnut (1). ► Rotate the wingnut (1) two turns counterclock‐ wise. The wingnut (1) is loose. ► Disengage the chain brake.
9 Removing and Fitting the Battery English ► Pull the hand guard toward the handlebar with your left hand. The hand guard engages with an audible click. The chain brake is disengaged. 2 3 Fitting the Battery ► Engage the chain brake. 1 3 0000-GXX-1208-A0 2 ► Insert the battery (1) in the battery compart‐ ment (2) and press it home until you hear a click. Arrows (3) on battery (1) are still visible and battery (1) is held securely in battery compart‐ ment (2).
English 11.2 11 Testing the Chain Saw and Battery Checking the Guide Bar 0000-GXX-1217-A0 ► Switch off the chain saw, engage the chain brake and remove the battery. ► Remove the chain and guide bar. ► Measure depth of bar groove with scale on STIHL filing gauge. ► Install a new guide bar if one of the following points applies: – Guide bar is damaged. – Measured bar depth is less than specified minimum depth, 20.3. – Bar groove is pinched or splayed.
12 Operating the Saw English ► If the chain continues to rotate: Engage the chain brake, remove the battery and contact your STIHL servicing dealer. Your saw has a malfunction. 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. 11.7 Testing the Battery ► Press button on battery. The LEDs glow or flash.
12 Operating the Saw ► Observe the following points when planning escape path (B): – Escape path (B) at an angle of 45° to direc‐ tion of fall (A). – No obstacles on the escape path (B). – The top of the tree can be observed. – If the escape path (B) is on a slope, it must be parallel to the slope. 12.4.2 Preparing work area at base of tree ► Remove obstacles from work area at tree base. ► Remove growth from tree base.
12 Operating the Saw English 1. 0000-GXX-4449-A0 ► Begin cut with the lower portion of the guide bar nose – with chain running at full speed. ► Cut until depth of kerf is twice the width of the guide bar. ► Swing the saw into plunge-cutting position. ► Perform the plunge cut. 12.4.
12 Operating the Saw 6 ► Shout a warning. ► With arms outstretched, cut through the hold‐ ing strap from outside at a downward angle. The tree falls. 0000-GXX-4452-A0 12.4.10 ► Insert a felling wedge. The felling wedge must match the tree diameter and the width of the felling cut. ► Shout a warning. ► With outstretched arms, cut through the stabi‐ lizing strap horizontally from outside at the same level as the felling cut. The tree falls. 12.4.
13 After Finishing Work 13 After Finishing Work 13.1 After Finishing Work ► Switch off the chain saw, 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 the wingnut. ► Rotate the adjusting wheel two full turns coun‐ terclockwise. The chain is now slack. ► Tighten down the wingnut. ► Fit the scabbard so that it completely covers the guide bar.
English 16 Cleaning ► Wind up the connecting cable and attach it to the charger. ► Observe the following points when storing the charger: – Charger is out of the reach of children. – The charger is clean and dry. – Charger is in an enclosed space. – Charger is stored separately, away from the battery. – The charger is not suspended from the con‐ necting cable or the holder (3) for the con‐ necting cable. – Charger is in a temperature range between + 5°C and + 40°C. 16.
18 Repairing English – Part-time usage: every 6 months – Occasional usage: every 12 months 18 0000-GXX-1220-A1 18.1 ► 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. 17.3 Chain Brake Maintenance The chain brake cannot be serviced by the user.
English 20 Specifications Fault LEDs on the battery Saw cuts out dur‐ 3 LEDs light ing operation. up red.LEDs light up red. Cause Remedy Chainsaw is too hot. ► Engage chain brake and remove battery. ► Allow the chainsaw to cool down. There is an electrical fault. Chainsaw run‐ time is too short. Charging does not start when the battery is inserted into the charger. 19.2 1 LED emits red light. Troubleshooting Charger Condition LED on Charger Battery not being LED flashes charged. red. 20 20.
21 Bar and Chain Combinations – Permissible temperature range for use and storage: + 5 °C to + 40 °C The charging times are indicated at www.stihl.com/charging-times. 20.6 Extension Cords If an extension cord is used, the cross sectional area of its conductors must meet the following minimum requirements – depending on the line voltage and length of the extension cord: If rated voltage on the rating label is 220V to 240V: – Cord length up to 20 m: AWG 15 / 1.
English 22 Spare Parts and Accessories 22 Spare Parts and Accesso‐ ries 22.1 Spare parts and accessories These symbols indicate original STIHL spare parts and original STIHL acces‐ sories. STIHL recommends the use of original STIHL spare parts and accessories. Despite ongoing market observation, STIHL is unable to judge the reliability, safety and suitabil‐ ity of other manufacturers' spare parts and accessories; accordingly, STIHL cannot warrant for the use of those parts.
25 General Power Tool Safety Warnings The safety precautions and warnings on avoiding an electric shock given under “Electrical Safety” do not apply to STIHL cordless products. WARNING ■ Read all the safety precautions, instructions, illustrations and specifications accompanying this electric power tool. Failure to follow the safety warnings and instructions may result in electric shock, fire and/or serious injury. Save all safety warnings and instructions for future reference.
English 25.5 25 General Power Tool Safety Warnings Electric power tool use and care a) Do not force the electric power tool. Use the correct electric power tool for your application. The correct electric power tool will do the job better and safer at the rate for which it was designed. b) Do not use an electrical power tool if its switch is defective. Any electric power tool that can‐ not be switched on or off via the switch is dan‐ gerous and must be repaired.
25 General Power Tool Safety Warnings other way round increases the risk of injury and is not permitted. c) Always hold the chain saw by the insulated handles because the saw chain may touch hidden electric wires. Any saw chain contact with a live wire may energize metallic parts of the power tool and result in an electric shock. d) Wear eye protection. Further protective equip‐ ment for hearing, head, hands, legs and feet is recommended.
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