STIHL TS 440 Instruction Manual
English Guide to Using this Manual Safety Precautions and Working Techniques Sample Applications Cutting Wheels Composite Abrasive Wheels Diamond Abrasive Wheels Abrasive wheel brake Electronic Water Control Mounting an Abrasive Wheel Fuel Fueling Starting / Stopping the Engine Air Filter System Adjusting the Carburetor Spark Arresting Screen in Muffler Spark Plug Storing the Machine Maintenance and Care Main Parts Specifications Maintenance and Repairs Disposal EC Declaration of Conformity © ANDREAS STIH
English Guide to Using this Manual NOTICE Pictograms Caution where there is a risk of damaging the machine or its individual components. Pictograms that appear on the machine are explained in this Instruction Manual. Engineering improvements Depending on the machine and equipment version, the following pictograms may appear on the machine. STIHL's philosophy is to continually improve all of its products.
English 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. 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.
English Wear steel-toed safety boots with non-slip soles. Transporting the machine Always stop the engine. WARNING To reduce the risk of eye injuries, wear close-fitting safety glasses in accordance with European Standard EN 166. Make sure the safety glasses are a snug fit. Wear face protection and make sure it is a good fit. Face protection alone is not sufficient to protect the eyes. Wear a safety hard hat where there is a danger of head injuries from falling objects. Dust (e. g.
English Abrasive cutting wheels Selecting the abrasive cutting wheels Abrasive cutting wheels must be approved for freehand cutting. Do not use other cutting wheels and attachments – risk of accident! Abrasive cutting wheels are suitable for different materials: Observe the identification of the abrasive cutting wheels. STIHL generally recommends wet cutting. Observe the outer diameter of the abrasive wheel. Spindle hole diameter of the abrasive wheel and shaft of cut-off machine must match.
– Check that the spark plug boot is secure – a loose boot may cause sparking that could ignite combustible fumes and cause a fire! at machine start-up, do not work with the cut-off machine and contact a dealer. Arrange for the abrasive cutting wheel brake to be repaired. – Check the correct operation of the abrasive cutting wheel brake.
English While working Take a break in good time before you get tired. If there is imminent danger or in an emergency, immediately stop the engine – set the slide control / master control lever /stop switch to STOP or 0. Work calmly and carefully – in daylight conditions and only when visibility is good. Proceed with caution, do not put others in danger. Check for correct idling, so that the abrasive cutting wheel is no longer driven when the throttle trigger is released and comes to a complete halt.
English – Wait until the abrasive cutting wheel has come to a standstill or brake the abrasive cutting wheel until it comes to a standstill by carefully touching a hard surface (e.g., concrete slab) Frequently inspect the abrasive cutting wheel – replace it right away if there are visible cracks, buckling or other damage (for example, overheating) – risk of accident due to breakage! In the event of changes in cutting behavior (e. g.
English needed. To do this, briefly cut through abrasive material, e. g., sandstone, aerated concrete or asphalt. Do not use for lateral grinding or scrubbing. 0000-GXX-4256-A0 At the end of the cut, the cut-off machine is no longer supported by the abrasive wheel in the cut.
English Traditional composite resin abrasive cutting wheels developed for cut-off machines with high circumferential speed have an inferior cutting performance and are unsuitable. 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.
English Water must always be used for wet cutting when working with diamond abrasive wheels Extend service life and increase cutting speed Always ensure a supply of water to the abrasive wheel. Binding dust The abrasive wheel must be supplied with at least 0.6 liters of water per minute.
English N Make the cut (B) deeper N Leave a "hinge" (C) N First sever the plate at the cut ends so that no material breaks away N Break plate N 12 Secure pipes, round and hollow bodies against vibrations, slipping and rolling away N Note direction of fall and weight of the severed part N Determine and mark the cutting line, avoid reinforcements, especially in the direction of the severing cut N Determine sequence of severing cuts N Grind a guide groove along the line marked N Make cut d
English Outer diameter is smaller than the maximum cutting depth Insert abrasive wheel at full throttle into the cut you have made, Illustration B N Insert abrasive wheel at full throttle into the cut you have made, Illustration D N Continue cutting downward more than half-way round the pipe, Illustration B N Continue cutting downward more than half-way round the pipe, Illustration D N Close guard, Illustration C N Close guard, Illustration E Outer diameter is greater than the maximum cutting de
English Only make the last top cut once all bottom and lateral cuts have been made. Cutting Wheels N 180BA025 AM 0000-GXX-1786-A0 G N 4 Last cut always from the top (approx.
English Composite Abrasive Wheels Diamond Abrasive Wheels Never use diamond abrasive wheels with side plating as they jam in the cut and can result in extreme kickback – Risk of accident! Types: – for dry applications Because of the reduced maximum spindle speed, STIHL has developed a special composite resin abrasive wheel for cutting steel. This abrasive wheel is only suitable for dry cutting.
English Built-up edges, sharpen An excessively high radial run-out deviation (A) overloads individual diamond segments, which overheat in the process. This can lead to stress cracks in the parent wheel or to annealing of individual segments. Deviations in axial run-out (B) result in higher thermal loading and wider cuts. Undercut Built-up edges take the form of a light gray deposit on the tops of the diamond segments. This deposit on the segments clogs the diamonds and blunts the segments.
English Troubleshooting Abrasive wheel Defects ragged edges or cut surfaces, crooked cut heavy wear on the sides of the segments ragged edges, crooked cut, no cutting performance, generation of sparks poor cutting performance, high segment wear Breakdowns or tears in the parent wheel and segment Undercut 1) Cause Deviation in radial or axial run-out Remedy Contact a servicing dealer1) Abrasive wheel gyrates Abrasive wheel is dull; built-up edges with abrasive wheels for stone use a new abrasive wheel Sh
English Abrasive wheel brake Checking function of the cutting wheel brake Releasing cutting wheel brake Each time before starting work The cutting wheel brake will be triggered if there is a sufficiently forceful kickback. When activated, the cutting wheel brake stops the abrasive cutting wheel within a fraction of a second. 0813BA003 KN When starting, the cutting wheel brake is engaged. After starting, the cutting wheel brake must be released.
English If the front V belt slips or squeals when accelerating or working, the front V belt is not tensioned correctly. The abrasive cutting wheel can remain stuck during cutting. N Hold down button (3) on control panel for 3 seconds with the engine running 1 Pull brake handle in the direction of the handlebar and release If this allows the cutting wheel brake to be released, the cutting wheel brake requires maintenance.
English Electronic Water Control 1 STIHL cut-off machines may be equipped with an electronic water control system. 3 The electronic water control system makes it possible to feed the optimum amount of water to the abrasive wheel. No water is fed to the abrasive wheel during idling.
English remains on the rear handle while doing so, the left hand always remains on the handlebar Mounting an Abrasive Wheel If the cut-off machine is idling after use, no more water will be fed to the abrasive wheel – the electronic water control, however, remains activated. On resuming use, the last quantity of water set will be fed to the abrasive wheel again automatically. Removing the abrasive wheel The engine must be switched off for fitting or replacement – set slide control to STOP or 0.
English Fitting the abrasive wheel WARNING Never use two abrasive wheels at the same time. The uneven wear creates a risk of breaking and an injury hazard! Fuel Your engine requires a mixture of gasoline and engine oil. WARNING For health reasons, avoid direct skin contact with gasoline and avoid inhaling gasoline vapor. STIHL MotoMix 370BA054 KN 4 N Fit the new abrasive wheel (4) WARNING Note the arrows indicating the direction of rotation on diamond abrasive wheels.
English Engines equipped with M-Tronic deliver full power when run on gasoline with an ethanol content of up to 25% (E25). Engine Oil If you mix the fuel yourself, use only STIHL two-stroke engine oil or another high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-EGD. STIHL specifies STIHL HP Ultra twostroke engine oil or an equivalent highperformance engine oil in order to maintain emission limits over the machine’s service life.
English Refueling Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends use of the STIHL filling system for fuel (special accessory). If the cap can be removed or the markings do not align, close the cap again – see sections "Closing the cap" and "Checking the lock". Changing the fuel pickup body every year Starting / Stopping the Engine Checking the correct operation of the abrasive wheel brake Each time before starting work Closing the filler cap 1 1.
English Versions with decompression valve Starting the engine 4 Ch ok START N 2 370BA020 KN 1 N Press throttle trigger lockout (1) and throttle trigger (2) simultaneously N Hold both triggers down N Set the slide control (3) to START and hold it there N Release the throttle trigger, slide control and throttle trigger lockout in succession – starting throttle position TS 440 Set the choke lever (4) according to the engine temperature c if engine is cold e if engine is warm (even if the eng
English 370BA102 KN 6 N Press the bulb (6) of the manual fuel pump 7-10 times – even if the bulb is still filled with fuel N Make sure you have a firm footing N Press the cut-off machine firmly against the ground, holding the handle with your left hand, thumb wrapped round the handle N Press the cut-off machine against the ground with your right knee on the shroud N Pull the starter grip slowly with your right hand until you feel it engage – then give it a brisk strong pull – do not pull out the
English Switch off the engine 2 Move brake lever toward handlebar and release – the abrasive wheel brake is released N Hold down button (3) on control panel for 3 seconds with the engine running If the carburetor has been set correctly, the cutting wheel should not rotate when the engine is idling. N Pull brake handle in the direction of the handlebar and release N The cut-off machine is now ready for use.
English Air Filter System Basic information Only high-quality air filters should be used, to protect the engine against ingress of abrasive dust. Replacing the air filter Only if there is a noticeable loss of engine power STIHL recommends the use of genuine STIHL air filters. The high quality of these parts will ensure troublefree operation, a long service life for the engine and extremely long filter life. The average filter life is more than 1 year.
English Adjusting the Carburetor Abrasive cutting wheel rotates when idling Standard setting N Basic information 370BA029 KN The ignition system of this cut-off machine is equipped with an electronic speed limiter. The maximum speed cannot be increased beyond a specified limit.
English The setting may have to be marginally corrected if engine performance is unsatisfactory at high altitudes: N Carry out the standard setting N Allow engine to warm up N Turn the high speed adjusting screw (H) slightly clockwise (leaner) – max. up to the stop Spark Arresting Screen in Muffler N If engine performance deteriorates, check the spark arresting screen in the muffler.
English Checking the Spark Plug N Use resistor type spark plugs with a properly tightened adapter nut. 000BA039 KN Installing the spark plug A N Clean dirty spark plug. N Check electrode gap (A) and readjust if necessary – see "Specifications". N Rectify the problems which have caused fouling of the spark plug. – Too much oil in fuel mix. – Dirty air filter. – Unfavorable running conditions. If the machine is to remain out of use for approx.
English Complete machine Controls Cutting wheel brake, multi-rib belt Visual inspection (condition, leaks) Fuel pickup body in fuel tank X Check operation X Replace Clean Cylinder fins Have them cleaned by a specialist dealer1) X X X Only if there is a noticeable loss of engine power X X X Clean or replace X X X Have it repaired by a specialist dealer1) Check idle adjustment – abrasive cutting wheel must not rotate X X X Readjust idle speed Spark plug 32 Adjust electrode gap X X Insp
All accessible screws, nuts and bolts (not Tighten adjusting screws) Inspect Antivibration elements Abrasive cutting wheel X X X X X X X Replace X X X Supports/rubber buffers (underneath the machine) Inspect Replace X Safety information label Replace X 1) As required If damaged If faulty Yearly Monthly X Have them replaced by a servicing dealer1) Inspect Weekly Whenever tank is refilled Before starting work The information applies in normal operating conditions.
English Main Parts 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 # A B C 10 4 2 1 A B 9 5 3 6 11 7 8 16 13 C 17 18 19 14 20 15 Rear handle Throttle trigger lockout Throttle trigger Slide control Starter grip Carburetor adjusting screws Filler cap Water connection Brake lever Adjusting lever Abrasive cutting wheel Front thrust washer Guard Muffler Spark arresting screen Handlebar Decompression valve Cap for spark plug boot Choke shutter lever Manual fuel pump Filter cover Machine no.
English Weight Specifications Without fuel, without abrasive cutting wheel, with electronic water control: 11.1 kg Engine STIHL single-cylinder two-stroke engine Displacement: Cylinder bore: Piston stroke: Engine power according to ISO 7293: Idle speed: Max. spindle speed to ISO 19432: 66.7 cc 50 mm 34 mm 3.2 kW (4.4 HP) at 9000 rpm 2700 rpm 2525 rpm Ignition system Electronic magneto ignition Spark plug (suppressed): Electrode gap: Bosch WSR 6 F 0.
English 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 (EC) No. 1907/2006 see www.stihl.com/reach. Exhaust Emissions The CO2value measured in the EU type approval procedure is specified at www.stihl.com/co2.
English EC Declaration of Conformity ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen The year of manufacture and serial number are applied to the product. Done at Waiblingen, 03.02.2020 ANDREAS STIHL AG & Co. KG pp declares under our sole responsibility that Designation: Make: Series: Serial identification number: Displacement: Cut-off machine STIHL TS 440 4238 Dr. Jürgen Hoffmann 66.
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