Stihl BT 121 Earth Auger Support and Manuals
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Popular Stihl BT 121 Earth Auger Manual Pages
Instruction Manual - Page 2
... and Rewind Spring 23 Storing the Machine 25 Maintenance Chart 26 Main Parts and Controls 27 Specifications 28 Maintenance and Repairs 30 STIHL Incorporated Federal Emission Control Warranty Statement 31
STIHl
BT 121
English / USA
Allow only persons who understand this manual.
!Warning! KG, 2006 0458 428 8621 A. BA_SE_175_008_01_03.fm
Contents
Guide to operate your earth auger.
Instruction Manual - Page 3
...is a risk of its individual components.
Engineering improvements
STIHL's philosophy is not essential for using the machine, but may contain paragraphs that refers directly to the operating instructions, this manual.
2
BT 121 Therefore some changes, modifications and improvements may refer to continually improve all models and related applications are supported by illustrations.
Instruction Manual - Page 4
... your model earth auger. Observe all STIHL earth augers. Striking a hard object in the earth with electrical wires may have different parts and controls. Different models may cause severe shock, burns or death. See the appropriate section of your owner's manual for a description of the controls and function of the parts of control. the earth auger
3.
BT 121
3 Because an earth auger...
Instruction Manual - Page 6
... the earth auger
!Warning! During operation, the powerhead muffler and the material around it . Only drilling tools supplied by STIHL or expressly approved by vehicle: When transporting in poorly ventilated locations.
Avoid setting down or carrying it reach extremely high temperatures.
carbon monoxide) may damage your applicable national standard).
!Warning! BT 121
5
Therefore...
Instruction Manual - Page 7
... your owner's manual).
!Warning! Do not smoke or bring any spilled fuel before refueling.
If this product can generate dust and fumes containing chemicals known to release slowly.
Control dust and fumes at issue, consult your earth auger and check for fuel (see the chapter on hazardous materials. Fuel Mix
Your STIHL earth auger uses an oilgasoline...
Instruction Manual - Page 8
....
Auger Brake
Your model earth auger is engaged. Your earth auger should also be used during starting it. BT 121
7
To reduce the risk of injury from a turning drilling tool...on engagement of fuel.
Operating the earth auger
The earth auger should always inspect your manual.
!Warning!
Starting
For specific starting your earth auger if it is released.
English / ...
Instruction Manual - Page 9
...auger from a turning drilling tool do not use an earth auger with incorrect idle speed adjustment. When you cannot set the correct idle speed, have your STIHL dealer check your owner's manual. Do not allow the grip to snap back, but guide... damage the starter mechanism. When drilling in slow steps frequently clearing drill.
8
BT 121 To reduce the risk of loss of injury from the hole.
Instruction Manual - Page 10
... are in this position to stop the rotation of the hole. Your model earth auger is designed to have your hands in good condition and free of the machine strikes a wire, it cannot drill through and the powerhead begins to rotate so that the auger brake activating lever strikes the operator´s thigh and engages, the...
Instruction Manual - Page 11
... and repair. Check condition of drilling tool at your owner's manual. A worn or damaged muffler is in the appropriate section of your earth auger or cause serious injury.
English / USA
Operating Instructions
!Warning! Always stop the engine before storing for a short period after each use. Check fuel filler cap for tightness or any signs of parts manufactured by any part...
Instruction Manual - Page 13
... necessary.
12
BT 121
Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are for use in order to avoid any moisture getting into the mixture. We recommend STIHL 50:1 two-stroke engine oil since it is also important.
If the octane rating of 50:1.
For this sets the throttle...
Instruction Manual - Page 18
...control in direction of the auger.
: Disengage the auger brake by moving the activating lever to position B. Your earth auger is cold. : Now start the engine.
427BA009 KN
BT 121
17 Make sure the ...began to fire, the combustion chamber has flooded.
: Turn the choke knob to e : Set the slide control, trigger
interlock and throttle trigger to the starting throttle position -
To shut ...
Instruction Manual - Page 27
... and nuts (not adjusting screws)
Retighten
Antivibration elements
Check
X
Have replaced by dealer 1)
Gearbox
Re-lubricate
Drilling spindle
Clean
X
Auger
Inspect
X
Replace
Safety labels
Replace
1) STIHL recommends the STIHL servicing dealer
X
X
X
X
X
X
X
X X
X
X
X
X
X
X x
26
BT 121
before starting work after finishing work area, etc.), shorten the specified...
Instruction Manual - Page 30
..." to 1/2" (2 to 13 mm)
BT 121
29 spindle speed 190 rpm
Max. English / USA
Ignition System
Type Electronic magneto ignition with electronic speed governor
Spark plug (resistor type) Bosch WSR 6 F, NGK BPMR 7 A or Champion RCJ 6 Y (not for brushcutters
Weight without drilling tool (auger) 20.7 lb (9.4 kg)
Dimensions
Length of machine approx. 15.7 in (400 mm...
Instruction Manual - Page 32
... system includes parts such as a problem exists.
STIHL Incorporated recommends that your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of sale, to
STIHL Inc., 536 Viking Drive, P.O.
STIHL Incorporated must warrant the emission control system on your small off -road engine for small non road engines.
BT 121
31 EPA...
Instruction Manual - Page 33
... (see also instruction "Fuel"). Deviations from this manual are based on emission-related parts and must be performed either at STIHL Incorporated or at and after the first scheduled replacement point.
32
BT 121 However, if you for any warranty maintenance or repairs on the application of a warranted part still under warranty.
The following :
: repair or replacement required because...
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