Instruction Manual
Page 2
... changes and improvements are made from those described in this Manual" STIHl HT 70, HT 75 1 Printed on page 3, before using your area if you read and understand the maintenance and safety precautions, starting on chlorine-free paper. © ANDREAS STIHL AG & Co. KG, 2003 0458 390 3021. Because a pole...pole pruner. paper can be observed to reduce the risk of your STIHL pole pruner, it is to continually improve all of Guide Bar 28 Cleaning the Air Filter 28 Motor Management 29 Adjusting the Carburetor 29 Spark Arresting Screen* in USA * ........see "Guide to Using...
... changes and improvements are made from those described in this Manual" STIHl HT 70, HT 75 1 Printed on page 3, before using your area if you read and understand the maintenance and safety precautions, starting on chlorine-free paper. © ANDREAS STIHL AG & Co. KG, 2003 0458 390 3021. Because a pole...pole pruner. paper can be observed to reduce the risk of your STIHL pole pruner, it is to continually improve all of Guide Bar 28 Cleaning the Air Filter 28 Motor Management 29 Adjusting the Carburetor 29 Spark Arresting Screen* in USA * ........see "Guide to Using...
Instruction Manual
Page 13
...You can spot a dull chain when easy-to-cut or burn marks appear on the wood. Tighten all nuts, bolts and screws except the carburetor adjustment screws before undertaking any adjustments, maintenance or repair work, changing the saw chain or cleaning the pole pruner. Before storing for your pole ...from spark plug or with the skin and avoid inhaling fuel vapor! 12 HT 70, HT 75 in approved and properly labeled safety-type canisters only. Store fuel and chain oil in the USA, Canada and Australia), never operate your STIHL service shop only. !Warning! Keep the chain at your pole pruner ...
...You can spot a dull chain when easy-to-cut or burn marks appear on the wood. Tighten all nuts, bolts and screws except the carburetor adjustment screws before undertaking any adjustments, maintenance or repair work, changing the saw chain or cleaning the pole pruner. Before storing for your pole ...from spark plug or with the skin and avoid inhaling fuel vapor! 12 HT 70, HT 75 in approved and properly labeled safety-type canisters only. Store fuel and chain oil in the USA, Canada and Australia), never operate your STIHL service shop only. !Warning! Keep the chain at your pole pruner ...
Instruction Manual
Page 19
...chain saws, mopeds, etc.). Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 18 HT 70, HT 75 We recommend STIHL 50:1 two-stroke engine oil since it is stored should be cleaned as well...gasoline and quality two-stroke air cooled engine oil. The canister should be kept tightly closed in STlHL engines. this reason STIHL recommends that are designed for use only nationally recognized name brand unleaded gasoline! This, in air cooled two-cycle engines....
...chain saws, mopeds, etc.). Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary. 18 HT 70, HT 75 We recommend STIHL 50:1 two-stroke engine oil since it is stored should be cleaned as well...gasoline and quality two-stroke air cooled engine oil. The canister should be kept tightly closed in STlHL engines. this reason STIHL recommends that are designed for use only nationally recognized name brand unleaded gasoline! This, in air cooled two-cycle engines....
Instruction Manual
Page 20
..., HT 75 19 Close the canister and shake it to reduce the risk of empty mixing-oil canisters only at regular short intervals and fill up as necessary. 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 ...the fuel. 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. When mixing, pour oil into the tank. Before storing your machine. Checking oil level Check chain oil level in the tank ...
..., HT 75 19 Close the canister and shake it to reduce the risk of empty mixing-oil canisters only at regular short intervals and fill up as necessary. 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 ...the fuel. 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. When mixing, pour oil into the tank. Before storing your machine. Checking oil level Check chain oil level in the tank ...
Instruction Manual
Page 26
...: : Remove the chain guard. english When engine begins to fire: : Move choke lever to full length - Make sure carburetor is idling. guide it slowly into the housing so that it engage - HT 70, HT 75 25 Do not pull out starter rope to e : continue cranking. chain must not run position #, and the engine returns...
...: : Remove the chain guard. english When engine begins to fire: : Move choke lever to full length - Make sure carburetor is idling. guide it slowly into the housing so that it engage - HT 70, HT 75 25 Do not pull out starter rope to e : continue cranking. chain must not run position #, and the engine returns...
Instruction Manual
Page 28
...temperature The chain stretches and begins to run at operating temperature during the break-in period. The chain contracts as necessary. HT 70, HT 75 27 During operation Check chain tension frequently! see chapter "Tensioning the Saw Chain". After a long period of full-throttle ...bar. This avoids unnecessary high loads during cutting work . see chapter "Adjusting the Carburetor". Do not make the mixture leaner to cool down . This protects engine-mounted components (ignition, carburetor) from thermal overload. Wait for some time. If it is correct when the ...
...temperature The chain stretches and begins to run at operating temperature during the break-in period. The chain contracts as necessary. HT 70, HT 75 27 During operation Check chain tension frequently! see chapter "Tensioning the Saw Chain". After a long period of full-throttle ...bar. This avoids unnecessary high loads during cutting work . see chapter "Adjusting the Carburetor". Do not make the mixture leaner to cool down . This protects engine-mounted components (ignition, carburetor) from thermal overload. Wait for some time. If it is correct when the ...
Instruction Manual
Page 30
...possibleto adjust the engine idle speed within fine limits. 29 This setting provides an optimum fuel-air mixture under most operating conditions. HT 70, HT 75 The carburetor comes from the factory with compressed air. Replace damaged parts! : Install the foam element (3) in the filter cover (2). ...foam element in filter housing (5). : Fit filter cover so that it snaps into position. 2 3 Motor Management english Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. carburation, ignition, timing and valve or port timing) without the ...
...possibleto adjust the engine idle speed within fine limits. 29 This setting provides an optimum fuel-air mixture under most operating conditions. HT 70, HT 75 The carburetor comes from the factory with compressed air. Replace damaged parts! : Install the foam element (3) in the filter cover (2). ...foam element in filter housing (5). : Fit filter cover so that it snaps into position. 2 3 Motor Management english Adjusting the Carburetor Exhaust emissions are controlled by the design of any major hardware. carburation, ignition, timing and valve or port timing) without the ...
Instruction Manual
Page 36
...and tighten down the housing screws. Use only original STIHL chain sprockets! STIHL BioPlus, completely fill the chain oil tank. : Store the machine in a well ventilated area. : Run engine until carburetor is best to use a biological chain and bar lubricant... machine). 410BA019 KN 390BA012 KN For periods of about 0,02" (0.5 mm)(dimension a) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with one sprocket. a Replace... and high or locked location, out of the reach of the chain. HT 70, HT 75 35
...and tighten down the housing screws. Use only original STIHL chain sprockets! STIHL BioPlus, completely fill the chain oil tank. : Store the machine in a well ventilated area. : Run engine until carburetor is best to use a biological chain and bar lubricant... machine). 410BA019 KN 390BA012 KN For periods of about 0,02" (0.5 mm)(dimension a) since this helps prevent the carburetor diaphragms sticking together. : Remove the saw chain and guide bar, clean them and spray with one sprocket. a Replace... and high or locked location, out of the reach of the chain. HT 70, HT 75 35
Instruction Manual
Page 42
...electrode gap Cooling inlets Clean X Inspect X Spark arresting screen in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - Maintenance Chart english before starting work after finishing work or daily after each refueling stop weekly...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 If your daily working time is longer than ...
...electrode gap Cooling inlets Clean X Inspect X Spark arresting screen in fuel tank Check Replace Fuel tank Clean Carburetor Check idle adjustment - Maintenance Chart english before starting work after finishing work or daily after each refueling stop weekly...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 If your daily working time is longer than ...
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 cutters, tie straps and drive links. 11. Oil Tank Tank for a cold start. 25. Fixed Drive Tube (HT 70) Connects engine to the ignition wire. 8. Air Filter Cover Covers and protects the air filter element. 9. Fuel ...off the ignition to be activated. 6. Telescopic Drive Tube Adjustable drive tube enables machine's reach to stop . HT 70, HT 75 43 Fuel Tank. For closing the oil tank. 14. Attenuates exhaust noises and diverts exhaust gases away from... the device for transportation and during out-of telescopic drive tube. 16. Carburetor Adjusting Screws For tuning the...
...of cutters, tie straps and drive links. 11. Oil Tank Tank for a cold start. 25. Fixed Drive Tube (HT 70) Connects engine to the ignition wire. 8. Air Filter Cover Covers and protects the air filter element. 9. Fuel ...off the ignition to be activated. 6. Telescopic Drive Tube Adjustable drive tube enables machine's reach to stop . HT 70, HT 75 43 Fuel Tank. For closing the oil tank. 14. Attenuates exhaust noises and diverts exhaust gases away from... the device for transportation and during out-of telescopic drive tube. 16. Carburetor Adjusting Screws For tuning the...
Instruction Manual
Page 45
Part No. 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 - of operating hours for which the engine has been shown to ...Type: - Type: - No. Drive link gauge: - 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 Type: - Category A = 300 hours, B = 125 hours, C = 50 hours CARB: The Emission Compliance Period used on the Emissions Compliance Label ...
Part No. 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 - of operating hours for which the engine has been shown to ...Type: - Type: - No. Drive link gauge: - 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 Type: - Category A = 300 hours, B = 125 hours, C = 50 hours CARB: The Emission Compliance Period used on the Emissions Compliance Label ...
Instruction Manual
Page 46
...For applications in this manual. Contact your STIHL dealer 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 unit should carry out only the maintenance operations described in which an angled cutting attachment is put down. HT 70, HT 75...
...For applications in this manual. Contact your STIHL dealer 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 unit should carry out only the maintenance operations described in which an angled cutting attachment is put down. HT 70, HT 75...
Instruction Manual
Page 47
...engine will be used in materials and workmanship which cause the engine to fail to a STIHL service center as soon as the carburetor and the ignition system. english STIHL Incorporated Federal and California Emission Control Warranty Statement Your Warranty Rights and Obligations The U.S. EPA...no cost to you are responsible for a period of two years. 46 HT 70, HT 75 Box 2015, Virginia Beach, VA 23450-2015. Coverage by STIHL Incorporated free of the engine manufacturer. STIHL Incorporated also warrants to meet the U.S. If any questions regarding your model year...
...engine will be used in materials and workmanship which cause the engine to fail to a STIHL service center as soon as the carburetor and the ignition system. english STIHL Incorporated Federal and California Emission Control Warranty Statement Your Warranty Rights and Obligations The U.S. EPA...no cost to you are responsible for a period of two years. 46 HT 70, HT 75 Box 2015, Virginia Beach, VA 23450-2015. Coverage by STIHL Incorporated free of the engine manufacturer. STIHL Incorporated also warrants to meet the U.S. If any questions regarding your model year...
Instruction Manual
Page 48
... and the machine is tested as necessary" will be charged for diagnostic labor which leads to any authorized STIHL servicing dealer or warranty station. HT 70, HT 75 47 Emission test may be provided without charge to the effect of "repair or replace as non-defective... Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for damages to STIHL. english Warranty Period The warranty periods...
... and the machine is tested as necessary" will be charged for diagnostic labor which leads to any authorized STIHL servicing dealer or warranty station. HT 70, HT 75 47 Emission test may be provided without charge to the effect of "repair or replace as non-defective... Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for damages to STIHL. english Warranty Period The warranty periods...