Stihl HT75 User Manual Download

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STIHL HT 75

Instruction Manual

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Summary of Contents for HT75

Page 1: ...STIHL HT 75 Instruction Manual ...

Page 2: ......

Page 3: ...ning this product Your Dr Nikolas Stihl Guide to Using this Manual 2 Safety Precautions and Working Techniques 2 Using the Unit 8 Cutting Attachment 10 Mounting the Bar and Chain 11 Tensioning the Chain 12 Checking Chain Tension 12 Adjusting the Throttle Cable 12 Fitting the Clip 13 Fuel 13 Fueling 14 Chain Lubricant 15 Filling Chain Oil Tank 15 Checking Chain Lubrication 17 Adjusting the Telescop...

Page 4: ...e 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 no...

Page 5: ...ssories 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 ...

Page 6: ...hain Slide control stop switch must move easily to STOP or 0 Throttle trigger lockout if installed and throttle trigger must move easily the throttle trigger must return to the idle position automatically 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 handl...

Page 7: ...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 high voltage 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 mu...

Page 8: ...ous 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 s...

Page 9: ...sily 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 Prolong...

Page 10: ...e checking chain tension before retensioning the chain before replacing the chain before rectifying problems Observe sharpening instructions keep the chain and guide bar in good condition at all times for safe and correct handling of the saw 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 ...

Page 11: ...anches always start by performing a N relieving cut 1 on the underside of the branch To do this position the cutting attachment and guide it down to the bar nose in an arc N Perform the cross cut 2 position the bar with the hook against the branch and then perform the cross cut Flush cutting thick branches If branch diameter is more than 10 cm first N perform an undercut 3 and then cross cut at a ...

Page 12: ...rd 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...

Page 13: ...he saw chain start at the bar nose N Fit the guide bar over the screw 3 and engage peg of tensioner slide in the hole 4 place the saw chain over the chain sprocket 5 at the same time N Turn the tensioning screw 1 clockwise 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 cover and screw on the nut finger tight N Go ...

Page 14: ... it must still be possible to pull the chain along the bar by hand N If necessary retension the chain A new chain has to be retensioned more often than one that has been in use for some time N Check chain tension frequently see chapter on Operating Instructions A properly adjusted throttle cable is the precondition for correct operation in the starting throttle idle and full throttle positions Adj...

Page 15: ...quality gasoline or engine oil may damage the engine sealing rings hoses and the fuel tank Gasoline Use only high quality brand name gasoline with a minimum octane rating of 90 leaded or unleaded Gasoline with an ethanol content of more than 10 can cause running problems in engines with a manually adjustable carburetor and should not be used in such engines Engines equipped with M Tronic deliver f...

Page 16: ...fuel and cleaning fluid properly in accordance with local regulations and environmental requirements 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 filler cap is facing up Filling up with fuel Take care not to spill fuel while fueling and do not overfill the tank STIHL recommends you use the ST...

Page 17: ...e 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 Waste oil does not have the necessary lu...

Page 18: ...HL filling system for chain oil special accessory To close Clip is in an upright position N Fit the fuel cap marks on the fuel cap and oil tank must line up N Push the fuel cap down as far as it will go N Hold the fuel cap down and twist it clockwise until it engages Then the markings on fuel cap and oil tank will align N Close the bracket lock 0000 GXX 0135 A0 KN 0000 GXX 0136 A0 0000 GXX 0137 A0...

Page 19: ...will twist the base of the cap into the correct position N Twist the fuel cap clockwise and close it see section Closing The saw chain must always throw off a small amount of oil NOTICE Never operate 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 ...

Page 20: ...ength 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 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 clip on carrying ring 2 on the shaft N Attach the pole saw to the carrying strap when cutting Adjusting the Teles...

Page 21: ...arrow To stop the engine push the slide control in the direction of the arrow on the stop symbol h to STOP 0 Starting N Press down the trigger lockout lever and squeeze the throttle trigger N and hold them in that position N Move the slide control to START and hold it there N Now release the throttle trigger slide control and trigger lockout in that order This is the starting throttle position N S...

Page 22: ...correctly adjusted The cutting attachment must not run when the engine is idling Your machine is now ready for operation Stopping the Engine N Push the slide control in the direction of the arrow on the stop symbol h to STOP 0 At very low outside temperatures As soon as the engine runs N Blip the throttle trigger to disengage the starting throttle position The slide control moves to the normal run...

Page 23: ...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 S...

Page 24: ...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 If groove depth is less than specified N Replace the guide bar 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 Taking Care of the Guide Bar Chain type ...

Page 25: ...N Clean away loose dirt from around the filter N Remove the foam and felt filter elements N Wash the foam element in a clean non flammable solution e g warm soapy water and then dry N Fit a new felt element do not wash As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air Replace any damaged parts N Fit the foam filter element 4 in the filter cover...

Page 26: ...y if engine power is not satisfactory when operating at high altitude or at sea level Rule of thumb Turn the high speed screw H about one quarter turn for every 1000 m 3300 ft change in altitude Conditions for adjustment N Carry out the standard setting N Warm up the engine for about 5 minutes N Open the throttle wide At high altitude N Turn the high speed screw H clockwise leaner no further than ...

Page 27: ...e engine is down on power difficult to start or runs poorly at idle speed first check the spark plug N Fit a new spark plug after about 100 operating hours or sooner if the electrodes are badly eroded Install only suppressed spark plugs of the type approved by STIHL see Specifications Removing the Spark Plug N Move the slide control to STOP 0 N Pull off the spark plug boot 1 N Unscrew the spark pl...

Page 28: ...ntion to the cylinder fins and air filter N If you use a biological chain and bar lubricant e g STIHL BioPlus completely fill the chain oil tank N Store the machine in a dry high or locked location out of the reach of children and other unauthorized persons N Remove chain sprocket cover saw chain and guide bar Replace the chain sprocket replace after using two saw chains or sooner if the wear mark...

Page 29: ...sistant STIHL recommends you have your chain resharpened by a STIHL servicing dealer WARNING It is absolutely essential to comply with the angles and dimensions specified below If the saw chain is incorrectly sharpened and in particular if the depth gauge is set too low there is an increased risk of kickback with resulting risk of injury The saw chain cannot be locked in place on the guide bar The...

Page 30: ...y N Select sharpening tools according to chain pitch N If you use an FG 2 HOS or USG sharpener Remove the chain from the bar and sharpen according to the instructions supplied with the tool N Clamp the bar in a vise if necessary N Sharpen the chain frequently take away as little metal as possible two or three strokes of the file are usually enough N Hold the file horizontally at a right angle to t...

Page 31: ...the chain N Place a filing gauge 1 that matches the chain pitch on the chain and press it against the cutter if the depth gauge projects from the filing gauge the depth gauge has to be lowered Saw chains with humped drive link 2 upper part of humped drive link 2 with service mark is lowered along with the depth gauge WARNING The other parts of the humped drive link must not be filed since this may...

Page 32: ...holder Filing gauge Flat file Sharpening kit 1 inch mm mm inch Part No Part No Part No Part No Part No 1 4 P 6 35 3 2 1 8 5605 771 3206 5605 750 4300 0000 893 4005 0814 252 3356 5605 007 1000 1 4 6 35 4 0 5 32 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007 1027 3 8 P 9 32 4 0 5 32 5605 772 4006 5605 750 4327 1110 893 4000 0814 252 3356 5605 007 1027 0 325 8 25 4 8 3 16 5605 772 4...

Page 33: ...aks X X Clean X Control handle Check operation X X Air filter Clean X X Replace X Manual fuel pump if fitted Check X Have repaired by servicing dealer1 X Pickup body filter in fuel tank Check X Replace X X Fuel tank Clean X X Carburetor Check idle adjustment chain must not rotate X X Adjust idle speed X Spark plug Adjust electrode gap X Replace after every 100 operating hours Cylinder fins Clean X...

Page 34: ...nds an authorized STIHL servicing dealer The following intervals apply to normal operating conditions only If your daily work ing time is longer or operating conditions are difficult very dusty work area etc shorten the specified intervals accordingly before starting work after finishing work or daily after each refueling stop weekly monthly every 12 months if problem if damaged as required ...

Page 35: ... 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 If these maintenance operations are not carried out as specified the user assumes responsibility for any damage that may occur Among other part...

Page 36: ... tank cap 13 Telescopic shaft 14 Clamp nut 15 Chain sprocket cover 16 Hook 17 Chain scabbard 18 Chain sprocket 19 Chain tensioner 20 Fuel tank 21 Fuel cap 22 Starter grip 23 Manual fuel pump 24 Choke lever 25 Carburetor adjusting screws 26 Muffler for some international markets with spark arresting screen Serial number Main Parts 1 10 13 3 5 6 4 7 16 14 20 21 22 23 24 26 8 11 12 9 18 19 2 15 25 17...

Page 37: ...l 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 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 The measured CO2value was determined on a representative engine in...

Page 38: ...ng courses and are supplied with the necessary technical information When repairing the machine only use replacement parts which have been approved by STIHL for this power tool or are technically identical Only use high quality replacement parts in order to avoid the risk of accidents and damage to the machine STIHL recommends the use of original STIHL replacement parts Original STIHL parts can be...

Page 39: ...2 EN 61000 6 1 The EC type examination was carried out by TÜV Süd Product Service GmbH NB 0123 Ridlerstrasse 65 D 80339 München Technical documents deposited at ANDREAS STIHL AG Co KG Produktzulassung The year of manufacture and serial number are applied to the product Done at Waiblingen 22 10 2020 ANDREAS STIHL AG Co KG pp Dr Jürgen Hoffmann Head of Product Data Regulations and Licensing EC Decla...

Page 40: ...www stihl com 04583900121E 0458 390 0121 E 0458 390 0121 E englisch G ...

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