Instruction Manual
Page 2
...tool with a very long reach some special safety precautions must be recycled. STIHL's philosophy is to Using this Manual" STIHl HT 70, HT 75 1 As a result, engineering changes and improvements are made from your STIHL dealer for information and assistance. If the operating characteristics or the appearance ...the Engine 23 Operating Instructions 27 Taking Care of Guide Bar 28 Cleaning the Air Filter 28 Motor Management 29 Adjusting the Carburetor 29 Spark Arresting Screen* in USA * ........see "Guide to continually improve all of the instructions in this manual. !Warning...
...tool with a very long reach some special safety precautions must be recycled. STIHL's philosophy is to Using this Manual" STIHl HT 70, HT 75 1 As a result, engineering changes and improvements are made from your STIHL dealer for information and assistance. If the operating characteristics or the appearance ...the Engine 23 Operating Instructions 27 Taking Care of Guide Bar 28 Cleaning the Air Filter 28 Motor Management 29 Adjusting the Carburetor 29 Spark Arresting Screen* in USA * ........see "Guide to continually improve all of the instructions in this manual. !Warning...
Instruction Manual
Page 13
...fuel vapor! 12 HT 70, HT 75 Keep the chain sharp. Keep the chain at your pole pruner if the muffler is greater in the USA, Canada and Australia), never operate your Owner's Manual. Tighten all nuts, bolts and screws except the carburetor adjustment screws before undertaking... followed. Store pole pruner in good condition. !Warning! english !Warning! An improperly maintained muffler will result. g. Do not operate your STIHL service shop only. !Warning! in hot or dry weather. For any maintenance or repair work performed at proper tension. Never touch a hot...
...fuel vapor! 12 HT 70, HT 75 Keep the chain sharp. Keep the chain at your pole pruner if the muffler is greater in the USA, Canada and Australia), never operate your Owner's Manual. Tighten all nuts, bolts and screws except the carburetor adjustment screws before undertaking... followed. Store pole pruner in good condition. !Warning! english !Warning! An improperly maintained muffler will result. g. Do not operate your STIHL service shop only. !Warning! in hot or dry weather. For any maintenance or repair work performed at proper tension. Never touch a hot...
Instruction Manual
Page 19
...only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 18 HT 70, HT 75 This, in turn, increases the risk of the fuel is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at...rating may increase engine temperatures. Do not fill fuel canisters that you use in or on the ground before filling. this reason STIHL recommends that are sitting in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Fuel...
...only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 18 HT 70, HT 75 This, in turn, increases the risk of the fuel is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at...rating may increase engine temperatures. Do not fill fuel canisters that you use in or on the ground before filling. this reason STIHL recommends that are sitting in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). Fuel...
Instruction Manual
Page 20
Close the canister and shake it to ensure proper mixing of storage. HT 70, HT 75 19 Fueling english Fuel mix ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. Change the fuel pick up in tank at authorized ... thoroughly shake the mixture in approved fuel-canisters only. Before fueling, clean the filler cap and the area around it vigorously by hand. Gasoline Oil (STIHL 50:1 or equivalent branded oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 389BA031 KN 389BA032 KN Dispose of burns or other personal...
Close the canister and shake it to ensure proper mixing of storage. HT 70, HT 75 19 Fueling english Fuel mix ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and run engine until carburetor is dry. Change the fuel pick up in tank at authorized ... thoroughly shake the mixture in approved fuel-canisters only. Before fueling, clean the filler cap and the area around it vigorously by hand. Gasoline Oil (STIHL 50:1 or equivalent branded oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 389BA031 KN 389BA032 KN Dispose of burns or other personal...
Instruction Manual
Page 26
Make sure carburetor is ready for operation. 390BA009 KN Alternative method: : Remove the chain guard. Your pruner is correctly adjusted - your thumb under the fan housing. : Pull the ... c to e : continue cranking. guide it slowly into the housing so that it a brisk strong pull. As soon as engine runs: : Blip the throttle trigger - HT 70, HT 75 25 english When engine begins to fire: : Move choke lever to $. and then give it is idling. Do not pull out starter rope to the...
Make sure carburetor is ready for operation. 390BA009 KN Alternative method: : Remove the chain guard. Your pruner is correctly adjusted - your thumb under the fan housing. : Pull the ... c to e : continue cranking. guide it slowly into the housing so that it a brisk strong pull. As soon as engine runs: : Blip the throttle trigger - HT 70, HT 75 25 english When engine begins to fire: : Move choke lever to $. and then give it is idling. Do not pull out starter rope to the...
Instruction Manual
Page 28
...groove - Retension if necessary - Always slacken off load) for the first three tank fillings. This protects engine-mounted components (ignition, carburetor) from thermal overload. Store the machine in power - This avoids unnecessary high loads during this could damage the engine - The drive...tank. Check tightness of cooling air. HT 70, HT 75 27 The engine develops its maximum power after finishing work : Slacken off the bar. Do not make the mixture leaner to be dissipated by hand. see chapter "Adjusting the Carburetor". Retension the chain - the chain may...
...groove - Retension if necessary - Always slacken off load) for the first three tank fillings. This protects engine-mounted components (ignition, carburetor) from thermal overload. Store the machine in power - This avoids unnecessary high loads during this could damage the engine - The drive...tank. Check tightness of cooling air. HT 70, HT 75 27 The engine develops its maximum power after finishing work : Slacken off the bar. Do not make the mixture leaner to be dissipated by hand. see chapter "Adjusting the Carburetor". Retension the chain - the chain may...
Instruction Manual
Page 30
... with a standard setting. warm soapy water) and then dry. : Fit new felt element. 2 3 Motor Management english Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. HT 70, HT 75 The carburetor comes from the factory with compressed air. carburation, ignition, timing and valve or port timing) without the addition of...
... with a standard setting. warm soapy water) and then dry. : Fit new felt element. 2 3 Motor Management english Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. HT 70, HT 75 The carburetor comes from the factory with compressed air. carburation, ignition, timing and valve or port timing) without the addition of...
Instruction Manual
Page 36
...fuel tank in a well ventilated area. : Run engine until carburetor is best to use two chains in a dry and high or locked location, out of the reach of children and other unauthorized persons. see "Special Accessories" - HT 70, HT 75 35 line up the tank and push the lower part of the..., pay special attention to check the depth of cover onto the tank. : Insert and tighten down the housing screws. Use only original STIHL chain sprockets! Storing the Machine Checking the Chain Sprocket english Fitting the Starter Cover : Push the upper mounting boss under the shroud -
...fuel tank in a well ventilated area. : Run engine until carburetor is best to use two chains in a dry and high or locked location, out of the reach of children and other unauthorized persons. see "Special Accessories" - HT 70, HT 75 35 line up the tank and push the lower part of the..., pay special attention to check the depth of cover onto the tank. : Insert and tighten down the housing screws. Use only original STIHL chain sprockets! Storing the Machine Checking the Chain Sprocket english Fitting the Starter Cover : Push the upper mounting boss under the shroud -
Instruction Manual
Page 42
... X X Saw chain Check chain tension X X Sharpen Check (wear, damage) X Clean and turn over X Guide bar Deburr X Replace Check X Chain sprocket Replace 1) 1) STIHL dealer * see "Guide to Using this Manual" HT 70, HT 75 X X X X X X X X X X X X X X X X X X X 41 Maintenance Chart english before starting work after finishing work or daily after each refueling ...Readjust idle Spark plug Readjust electrode gap Cooling inlets Clean X Inspect X Spark arresting screen in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment -
... X X Saw chain Check chain tension X X Sharpen Check (wear, damage) X Clean and turn over X Guide bar Deburr X Replace Check X Chain sprocket Replace 1) 1) STIHL dealer * see "Guide to Using this Manual" HT 70, HT 75 X X X X X X X X X X X X X X X X X X X 41 Maintenance Chart english before starting work after finishing work or daily after each refueling ...Readjust idle Spark plug Readjust electrode gap Cooling inlets Clean X Inspect X Spark arresting screen in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment -
Instruction Manual
Page 43
... Oil filler cap 14 Telescopic drive tube (HT 75) 15 Clamp screw (HT 75) 16 Chain sprocket cover 17 Hook 18 Chain guard (scabbard) 19 Chain sprocket 20 Chain tensioner 21 Fuel tank 22 Fuel filler cap 23 Starter grip 24 Fuel pump 25 Choke lever 26 Carburetor adjusting screws 27 Muffler (with spark arresting...
... Oil filler cap 14 Telescopic drive tube (HT 75) 15 Clamp screw (HT 75) 16 Chain sprocket cover 17 Hook 18 Chain guard (scabbard) 19 Chain sprocket 20 Chain tensioner 21 Fuel tank 22 Fuel filler cap 23 Starter grip 24 Fuel pump 25 Choke lever 26 Carburetor adjusting screws 27 Muffler (with spark arresting...
Instruction Manual
Page 44
...of the engine. 7. Guide Bar Supports and guides the saw chain. 20. Hook For hooking machine to the ignition wire. 8. HT 70, HT 75 43 Throttle Trigger Interlock Must be depressed before the throttle trigger can be loosened to adjust length of the pull starter, which i the... Fuel Pump Provides additional fuel feed for chain lubricating oil. 13. english Definitions 1. For fuel and oil mixture. 22. Carburetor Adjusting Screws For tuning the carburetor. 27. The spark arresting screen is designed to the harness. 4. Chain Sprocket Cover Covers the clutch and chain sprocket. ...
...of the engine. 7. Guide Bar Supports and guides the saw chain. 20. Hook For hooking machine to the ignition wire. 8. HT 70, HT 75 43 Throttle Trigger Interlock Must be depressed before the throttle trigger can be loosened to adjust length of the pull starter, which i the... Fuel Pump Provides additional fuel feed for chain lubricating oil. 13. english Definitions 1. For fuel and oil mixture. 22. Carburetor Adjusting Screws For tuning the carburetor. 27. The spark arresting screen is designed to the harness. 4. Chain Sprocket Cover Covers the clutch and chain sprocket. ...
Instruction Manual
Page 45
Oil tank capacity: 0.22 l (0.46 US pt) Weight without bar and chain, empty tanks: HT 70 11.2 lbs (5.1 kg) HT 75 15.4 lbs (7.0 kg) 44 HT 70, HT 75 Chain pitch: - Drive link gauge: - Chain pitch: - of operating hours for which the engine has been shown...Chain lubrication Fully automatic speed-controlled rotary piston oil pump. Type: - Picco Micro Mini 3/8"P (9.32 mm) 0.04 in long (9.5 mm) Fuel System Carburetor: All position diaphragm carburetor with sprocket nose 3005 000 3905 12" (30 cm) Oilomatic chain - Type: - No. Part No. - Type: - Part No. english ...
Oil tank capacity: 0.22 l (0.46 US pt) Weight without bar and chain, empty tanks: HT 70 11.2 lbs (5.1 kg) HT 75 15.4 lbs (7.0 kg) 44 HT 70, HT 75 Chain pitch: - Drive link gauge: - Chain pitch: - of operating hours for which the engine has been shown...Chain lubrication Fully automatic speed-controlled rotary piston oil pump. Type: - Picco Micro Mini 3/8"P (9.32 mm) 0.04 in long (9.5 mm) Fuel System Carburetor: All position diaphragm carburetor with sprocket nose 3005 000 3905 12" (30 cm) Oilomatic chain - Type: - No. Part No. - Type: - Part No. english ...
Instruction Manual
Page 46
...with round file Round file Gauge Reference gauge for chain sprocket Other special accessories Safety glasses Harness HT full harness (with sling) Carburetor screwdriver Combination wrench STIHL lubricating grease STIHL ElastoStart (starter rope with grip) Special resin-free lubricating oil The user of this manual....put down. The symbol may be accepted only if the repair has been performed by an authorized STIHL dealer using original STIHL replacement parts. HT 70, HT 75 45 Special Accessories english Maintenance and Repairs Guard Guard kit 4138 007 1003 for the latest information on...
...with round file Round file Gauge Reference gauge for chain sprocket Other special accessories Safety glasses Harness HT full harness (with sling) Carburetor screwdriver Combination wrench STIHL lubricating grease STIHL ElastoStart (starter rope with grip) Special resin-free lubricating oil The user of this manual....put down. The symbol may be accepted only if the repair has been performed by an authorized STIHL dealer using original STIHL replacement parts. HT 70, HT 75 45 Special Accessories english Maintenance and Repairs Guard Guard kit 4138 007 1003 for the latest information on...
Instruction Manual
Page 47
... the small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. You are responsible for a period of charge. Coverage by STIHL Incorporated free of two years. 46 HT 70, HT 75 Owner's Warranty Responsibilities: As the small off -road equipment engines are pleased...
... the small off -road equipment engine or a part has failed due to a STIHL service center as soon as the carburetor and the ignition system. You are responsible for a period of charge. Coverage by STIHL Incorporated free of two years. 46 HT 70, HT 75 Owner's Warranty Responsibilities: As the small off -road equipment engines are pleased...
Instruction Manual
Page 48
...repairs on the application of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). STIHL Incorporated is defective. Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system...part is liable for damages to any authorized STIHL servicing dealer or warranty station. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of a warranted part still under warranty. HT 70, HT 75 47 If any emission related part on the...
...repairs on the application of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). STIHL Incorporated is defective. Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system...part is liable for damages to any authorized STIHL servicing dealer or warranty station. Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of a warranted part still under warranty. HT 70, HT 75 47 If any emission related part on the...