Instruction Manual
Page 3
...the Handles 11 Using the Unit 12 Fuel 13 Fueling 14 Gearbox 16 Fitting the Auger 17 Starting / Stopping the Engine 17 Operating Instructions 19 Releasing a Trapped Auger 20 Cleaning the Air Filter 20 Engine Management 21 Adjusting the Carburetor 21 Checking ... Special Accessories 29 Maintenance and Repairs 29 STIHL Incorporated Federal Emission Control Warranty Statement 30 Trademarks 32 { BT 45 English Allow only persons who fully understand this manual. KG, 2011 0458-421-8621. Because a power drill is important that you do not understand any...
...the Handles 11 Using the Unit 12 Fuel 13 Fueling 14 Gearbox 16 Fitting the Auger 17 Starting / Stopping the Engine 17 Operating Instructions 19 Releasing a Trapped Auger 20 Cleaning the Air Filter 20 Engine Management 21 Adjusting the Carburetor 21 Checking ... Special Accessories 29 Maintenance and Repairs 29 STIHL Incorporated Federal Emission Control Warranty Statement 30 Trademarks 32 { BT 45 English Allow only persons who fully understand this manual. KG, 2011 0458-421-8621. Because a power drill is important that you do not understand any...
Instruction Manual
Page 4
...STIHL's philosophy is to continually improve all applicable local safety regulations, standards and ordinances. Safety Precautions and Working Techniques Because a power drill is important that require your power tool. Drilling into or contact with the symbols and signal words described below . 2 BT 45 .... Such paragraphs are made from those described in this manual, please contact your STIHL dealer for gasoline and engine oil mixture Press to operate manual fuel pump Auger brake Symbols in Text Many operating and safety instructions are explained in different ways:...
...STIHL's philosophy is to continually improve all applicable local safety regulations, standards and ordinances. Safety Precautions and Working Techniques Because a power drill is important that require your power tool. Drilling into or contact with the symbols and signal words described below . 2 BT 45 .... Such paragraphs are made from those described in this manual, please contact your STIHL dealer for gasoline and engine oil mixture Press to operate manual fuel pump Auger brake Symbols in Text Many operating and safety instructions are explained in different ways:...
Instruction Manual
Page 5
...drill or a plant auger involves 1. See the appropriate section of your instruction manual for drilling... is in use . If the drilling tool comes in personal injury or ...auger creates reactive forces. In order to use in loss of whitefinger disease. Warning! Use your wood boring drill...STIHL power drills. the operator 2. If you have different parts and controls. Be sure that unauthorized persons do not use it for mass flower plantings...) forces can cause the auger powerhead and handles to rotate... operating this manual. Use your planting auger only for other machines) exposing ...
...drill or a plant auger involves 1. See the appropriate section of your instruction manual for drilling... is in use . If the drilling tool comes in personal injury or ...auger creates reactive forces. In order to use in loss of whitefinger disease. Warning! Use your wood boring drill...STIHL power drills. the operator 2. If you have different parts and controls. Be sure that unauthorized persons do not use it for mass flower plantings...) forces can cause the auger powerhead and handles to rotate... operating this manual. Use your planting auger only for other machines) exposing ...
Instruction Manual
Page 7
... it was not designed (e.g. Warning! Select bare ground for which it cannot endanger others. Although certain unauthorized attachments, drills and augers are useable with the specific STIHL model are working properly. If this tool is tight (no leaks) and that the fuel system is subjected to ... may , in any pressure build-up inside the fuel tank depending on "Fuel" of burns and other ignition source, it to rotate. BT 45 5 Do not continue operating this power tool in fact, be extremely dangerous. When transporting in a vehicle, properly secure your power tool in...
... it was not designed (e.g. Warning! Select bare ground for which it cannot endanger others. Although certain unauthorized attachments, drills and augers are useable with the specific STIHL model are working properly. If this tool is tight (no leaks) and that the fuel system is subjected to ... may , in any pressure build-up inside the fuel tank depending on "Fuel" of burns and other ignition source, it to rotate. BT 45 5 Do not continue operating this power tool in fact, be extremely dangerous. When transporting in a vehicle, properly secure your power tool in...
Instruction Manual
Page 9
...for proper condition and operation before starting, particularly the throttle trigger, throttle trigger lockout, stop switch and drilling tool or auger. Warning! Do not allow the engine to slow down to modify the controls or safety devices. To... the unit firmly with incorrect idle adjustment. When you cannot set the correct idle speed, have your STIHL dealer check your hand or fingers and may cause arcing that the spark plug boot is set in ... the fueling spot, outdoors only. To reduce the risk of the drilling tool. Warning! Failure to follow this respect. BT 45 7
...for proper condition and operation before starting, particularly the throttle trigger, throttle trigger lockout, stop switch and drilling tool or auger. Warning! Do not allow the engine to slow down to modify the controls or safety devices. To... the unit firmly with incorrect idle adjustment. When you cannot set the correct idle speed, have your STIHL dealer check your hand or fingers and may cause arcing that the spark plug boot is set in ... the fueling spot, outdoors only. To reduce the risk of the drilling tool. Warning! Failure to follow this respect. BT 45 7
Instruction Manual
Page 10
...and balance at all times. As soon as the engine is running, this position to have your power drill under good visibility and daylight conditions only. Never work in a tree unless you have received specific, professional ...BT 45 Operate it under control at all times. Warning! carbon monoxide) may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Do not overreach. Warning! Warning! To reduce the risk of injury from inhaling toxic fumes, never run the machine indoors or in a well ventilated area. Drilling Planting Holes Drilling...
...and balance at all times. As soon as the engine is running, this position to have your power drill under good visibility and daylight conditions only. Never work in a tree unless you have received specific, professional ...BT 45 Operate it under control at all times. Warning! carbon monoxide) may be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Do not overreach. Warning! Warning! To reduce the risk of injury from inhaling toxic fumes, never run the machine indoors or in a well ventilated area. Drilling Planting Holes Drilling...
Instruction Manual
Page 11
...Auger." Inhalation of the power drill, which can cause susceptible persons to property, always be present. Warning! Be prepared to a minimum. Danger! Use good work practices, such as descripted in a hole. Keep throttle feed pressure to release the throttle completely if the forces become too great. BT 45... 9 Contact your local utility company or your power drill firmly to 0 or STOP. Do not operate your power tool using the starting throttle lock...
...Auger." Inhalation of the power drill, which can cause susceptible persons to property, always be present. Warning! Be prepared to a minimum. Danger! Use good work practices, such as descripted in a hole. Keep throttle feed pressure to release the throttle completely if the forces become too great. BT 45... 9 Contact your local utility company or your power drill firmly to 0 or STOP. Do not operate your power tool using the starting throttle lock...
Instruction Manual
Page 12
... immediately for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used drilling tools or augers. For specific instructions to repair damaged drilling tools. To reduce the risk of fire; It continues to reduce the risk of injury, never touch...repair work or cleaning the power tool. Use only identical STIHL replacement parts for properly maintaining the 10 BT 45 Warning! Warning! Never test the ignition system with the spark plug boot removed from contact with the drilling tool, always switch off the engine before doing any ...
... immediately for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used drilling tools or augers. For specific instructions to repair damaged drilling tools. To reduce the risk of fire; It continues to reduce the risk of injury, never touch...repair work or cleaning the power tool. Use only identical STIHL replacement parts for properly maintaining the 10 BT 45 Warning! Warning! Never test the ignition system with the spark plug boot removed from contact with the drilling tool, always switch off the engine before doing any ...
Instruction Manual
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...2 1 421BA003 KN N Hold the handle (1) by the clamp and turn it clockwise until it down firmly. 421BA005 KN 421BA036 KN BT 45 11 Normal mounting procedure N Hold the clamp firmly and unscrew the handle counterclockwise. For any maintenance of the emission control system please refer ...the instruction manual). Forest Service, may damage parts of water may have similar requirements. spark arrester. Mounting the Handles Assist handle for wood drill Before mounting a new assist handle for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in...
...2 1 421BA003 KN N Hold the handle (1) by the clamp and turn it clockwise until it down firmly. 421BA005 KN 421BA036 KN BT 45 11 Normal mounting procedure N Hold the clamp firmly and unscrew the handle counterclockwise. For any maintenance of the emission control system please refer ...the instruction manual). Forest Service, may damage parts of water may have similar requirements. spark arrester. Mounting the Handles Assist handle for wood drill Before mounting a new assist handle for longer than a few days, always empty the fuel tank (see chapter "Storing the Machine" in...
Instruction Manual
Page 14
... gardening (kit for planting hole auger). During operation, always hold the machine firmly with both hands to control unexpected reactive forces that may occur if the drilling tool jams, e.g. in the flange. N Insert the handle tube (5) in rocky ground. N Make sure the polymer bushing is set to poistion 2. 421BA002 KN 12 BT 45 N Make sure...
... gardening (kit for planting hole auger). During operation, always hold the machine firmly with both hands to control unexpected reactive forces that may occur if the drilling tool jams, e.g. in the flange. N Insert the handle tube (5) in rocky ground. N Make sure the polymer bushing is set to poistion 2. 421BA002 KN 12 BT 45 N Make sure...
Instruction Manual
Page 15
...engines with a minimum octane rating of the fuel is also important. To reduce the risk of personal injury from static BT 45 13 We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. The ethanol content in both hands to readjust the ... converters as well. Avoid direct contact with a much higher or lower ethanol content. Release the throttle trigger if the drilling tool jams. Drilling tool jammed See "Releasing a Trapped Auger". 421BA009 KN English Fuel This engine is specially formulated for use only high-quality unleaded gasoline!
...engines with a minimum octane rating of the fuel is also important. To reduce the risk of personal injury from static BT 45 13 We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. The ethanol content in both hands to readjust the ... converters as well. Avoid direct contact with a much higher or lower ethanol content. Release the throttle trigger if the drilling tool jams. Drilling tool jammed See "Releasing a Trapped Auger". 421BA009 KN English Fuel This engine is specially formulated for use only high-quality unleaded gasoline!
Instruction Manual
Page 18
... N Twist the cap clockwise, closing it drops fully into the correct position. For adjusting the carburetor - the drilling spindle must be adjusted to the required position. 16 BT 45 N Twist the cap counterclockwise as far as it will twist the base of the unit and take it may be...to suit requirements. Gearbox idle position for repair. 001BA226 KN 421BA017 KN Gearbox The power drill is running at idle speed - immediately stop use of the cap into the tank opening. N If your authorized STIHL dealer for starting the engine - this will go (approx. 1/4 turn the cap ...
... N Twist the cap clockwise, closing it drops fully into the correct position. For adjusting the carburetor - the drilling spindle must be adjusted to the required position. 16 BT 45 N Twist the cap counterclockwise as far as it will twist the base of the unit and take it may be...to suit requirements. Gearbox idle position for repair. 001BA226 KN 421BA017 KN Gearbox The power drill is running at idle speed - immediately stop use of the cap into the tank opening. N If your authorized STIHL dealer for starting the engine - this will go (approx. 1/4 turn the cap ...
Instruction Manual
Page 19
... due to secure and release the planting hole auger. N Use a 17mm open-end wrench to loss of control. N Screw the adapter (3) onto the drilling spindle (4). N Use a 13mm open -end wrench. N Secure the drilling tool (5) in neutral. When using the geared rim drill chuck (special accessory), make sure it firmly. BT 45 17 The machine may begin to...
... due to secure and release the planting hole auger. N Use a 17mm open-end wrench to loss of control. N Screw the adapter (3) onto the drilling spindle (4). N Use a 13mm open -end wrench. N Secure the drilling tool (5) in neutral. When using the geared rim drill chuck (special accessory), make sure it firmly. BT 45 17 The machine may begin to...
Instruction Manual
Page 22
... a new filter - N Replace with both hands on the handles. or, as a temporary measure, knock it out or blow it down firmly. 20 BT 45 N Install the filter in the drill hole If there is a noticeable loss of engine power 421BA025 KN 421BA026 KN 421BA038 KN N Let go of the... drill hole. 1 34 2 N Set the choke lever to l. do not wash. N Replace any damaged parts. N Loosen the screw (1). English Releasing a Trapped Auger Cleaning the Air Filter If the auger jams in the filter housing. N Move rotary knob to the...
... a new filter - N Replace with both hands on the handles. or, as a temporary measure, knock it out or blow it down firmly. 20 BT 45 N Install the filter in the drill hole If there is a noticeable loss of engine power 421BA025 KN 421BA026 KN 421BA038 KN N Let go of the... drill hole. 1 34 2 N Set the choke lever to l. do not wash. N Replace any damaged parts. N Loosen the screw (1). English Releasing a Trapped Auger Cleaning the Air Filter If the auger jams in the filter housing. N Move rotary knob to the...
Instruction Manual
Page 23
BT 45 Adjusting the Carburetor General Information The carburetor comes from the factory with the idle speed screw (LA) so that the drilling spindle does not rotate. N Turn high speed screw (H) counterclockwise as far as stop, then open it 1 full turn. N Turn the idle speed screw (LA) slowly clockwise until the drilling...fuel-air mixture under most operating conditions. Standard Setting LA LH 1 3/4 N Shutting down the engine N Remove the auger. the drilling spindle must not rotate. N Adjust idle speed with a standard setting. Adjusting Idle Speed Engine stops while idling N...
BT 45 Adjusting the Carburetor General Information The carburetor comes from the factory with the idle speed screw (LA) so that the drilling spindle does not rotate. N Turn high speed screw (H) counterclockwise as far as stop, then open it 1 full turn. N Turn the idle speed screw (LA) slowly clockwise until the drilling...fuel-air mixture under most operating conditions. Standard Setting LA LH 1 3/4 N Shutting down the engine N Remove the auger. the drilling spindle must not rotate. N Adjust idle speed with a standard setting. Adjusting Idle Speed Engine stops while idling N...
Instruction Manual
Page 27
...openings (arrows). If the spring pops out and uncoils, refit it in a well ventilated area. The bits of 3 months or longer N Remove the drilling tool. N Thoroughly clean the machine - check that outer loop (6) is dry - N Refit the rope rotor as described in this helps prevent the ...carburetor diaphragms sticking together. N Use a suitable tool to the cylinder fins and air filter. BT 45 English 25 The frame slips off in "Replacing the Starter Rope". pay special attention to push the spring into the housing. To reduce risk of...
...openings (arrows). If the spring pops out and uncoils, refit it in a well ventilated area. The bits of 3 months or longer N Remove the drilling tool. N Thoroughly clean the machine - check that outer loop (6) is dry - N Refit the rope rotor as described in this helps prevent the ...carburetor diaphragms sticking together. N Use a suitable tool to the cylinder fins and air filter. BT 45 English 25 The frame slips off in "Replacing the Starter Rope". pay special attention to push the spring into the housing. To reduce risk of...
Instruction Manual
Page 28
...-specific 2) STIHL recommends a STIHL servicing dealer. 26 before starting work after finishing work area, etc.), shorten the specified intervals accordingly. drilling spindle must not rotate X Readjust idle Spark plug Spark arrestor1) in muffler Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required X X X X X X X X X X X X X X X X BT 45 If...
...-specific 2) STIHL recommends a STIHL servicing dealer. 26 before starting work after finishing work area, etc.), shorten the specified intervals accordingly. drilling spindle must not rotate X Readjust idle Spark plug Spark arrestor1) in muffler Readjust electrode gap Replace after each refueling stop weekly monthly every 12 months if problem if damaged if required X X X X X X X X X X X X X X X X BT 45 If...
Instruction Manual
Page 29
Main Parts 7 3 1 2 12 13 4 6 5 11 14 9 8 10 15 18 19 16 17 22 21 English 1 Wood Drill2) / Twist Drill2) 2 Chuck1) 3 Assist Handle1) 4 Knob 5 Fuel Filler Cap 6 Air Filter Cover 7 Carrying Strap2) 8 Throttle Trigger 9 Starting Throttle Lock 10 Control Handle 11 Carburetor Adjusting Screws 12 Stop Switch 13 Starter Grip 14 Choke Lever 15 Fuel Pump 16 Planting Hole Auger2) 17 Flange1) 18 Assist Handle1) 19 Muffler with Spark Arresting Screen 20 Spark Plug Boot 21 Drilling Spindle 22 Adapter for Planting Hole Auger 421BA040 KN 20 BT 45 1) Depending on Model 2) Special Accessory 27
Main Parts 7 3 1 2 12 13 4 6 5 11 14 9 8 10 15 18 19 16 17 22 21 English 1 Wood Drill2) / Twist Drill2) 2 Chuck1) 3 Assist Handle1) 4 Knob 5 Fuel Filler Cap 6 Air Filter Cover 7 Carrying Strap2) 8 Throttle Trigger 9 Starting Throttle Lock 10 Control Handle 11 Carburetor Adjusting Screws 12 Stop Switch 13 Starter Grip 14 Choke Lever 15 Fuel Pump 16 Planting Hole Auger2) 17 Flange1) 18 Assist Handle1) 19 Muffler with Spark Arresting Screen 20 Spark Plug Boot 21 Drilling Spindle 22 Adapter for Planting Hole Auger 421BA040 KN 20 BT 45 1) Depending on Model 2) Special Accessory 27
Instruction Manual
Page 30
... Emission Compliance Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: 1.66 cu. Category A = 300 hours B = 125 hours C = 50 hours CARB The Emission Compliance Period... for a cold start. 16 Planting Hole Auger For drilling holes. 17 Flange For mounting the assist handle to the gearbox housing. 18 Assist Handle Handle for planter auger for left hand attached to flange at 7,000 rpm Idle speed: 2,800 rpm Engine cut-off speed: 9,500 rpm 28 BT 45
... Emission Compliance Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: 1.66 cu. Category A = 300 hours B = 125 hours C = 50 hours CARB The Emission Compliance Period... for a cold start. 16 Planting Hole Auger For drilling holes. 17 Flange For mounting the assist handle to the gearbox housing. 18 Assist Handle Handle for planter auger for left hand attached to flange at 7,000 rpm Idle speed: 2,800 rpm Engine cut-off speed: 9,500 rpm 28 BT 45