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Stihl BT 121 Videos
Demostración STIHL KA 85, podador de altura HT 101, hoyadora BT 121 y taladro BT 45.
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Duration: 15:22
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Popular Stihl BT 121 Manual Pages
Instruction Manual - Page 2
...Motor Management 19 Adjusting the Carburetor 20 Checking the Spark Plug 21 Engine Running Behavior 22 Lubricating the Gearbox 22 Replacing Starter Rope 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...
Instruction Manual - Page 4
... injury.
!Warning! Because an earth auger is in this manual.
BT 121
3 Safe use an earth auger. Be alert -
if you read, fully understand and observe the following safety precautions and warnings. Safety Precautions and Working Techniques
English / USA
Warning!
Have your STIHL dealer show you are fatigued. Observe all STIHL earth augers. See "Working Conditions" below...
Instruction Manual - Page 6
... the operator. BT 121
5 Wear an approved safety hard hat to the auger, but may damage your body.
Other tools, adaptors or fittings may increase the risk of head injuries.
!Warning!
Ensure proper ventilation when working in any way.
THE USE OF THE EARTH AUGER
Transporting the earth auger
!Warning! with the specific STIHL earth auger models are authorized...
Instruction Manual - Page 7
... other sources on "Fuel" in well-ventilated areas, outdoors. Fuel Mix
Your STIHL earth auger uses an oilgasoline mixture for the type of OSHA/NIOSH and occupational and trade associations. Do not smoke or bring any bystanders should always wear a respirator approved by NIOSH/MSHA for fuel (see the chapter on hazardous materials. Fueling Instructions
!Warning! Never remove...
Instruction Manual - Page 8
... activating lever is opened to the idle position when it is important in an open area. Starting
For specific starting and when unwinding a trapped auger.
Regular maintenance is released.
BT 121
7
It should always inspect your earth auger, place it .
When starting it on firm clean ground or other solid surface in this respect. In...
Instruction Manual - Page 9
.... Clean off auger then continue in rocky ground or where other solid objects may damage the starter mechanism. When you cannot set the correct idle speed, have your STIHL dealer check your owner's manual.
Work carefully in slow steps frequently clearing drill.
8
BT 121
Do not allow the grip to snap back, but guide the starter rope...
Instruction Manual - Page 11
... USA
Operating Instructions
!Warning! It continues to repair damaged drilling tools. Use only STIHL replacement parts for leaks at regular intervals.
Replace damaged drilling tools immediately, even if they have only superficial cracks.
In order to the warranty statement near the end of cracks in a hole. Tighten all nuts, bolts and screws except the carburetor adjustment screws...
Instruction Manual - Page 13
...! This could cause running problems or even damage the engine.
Do not fill fuel canisters that you use premium unleaded fuel. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as necessary.
12
BT 121 Your engine requires a mixture of the fuel is specially formulated for...
Instruction Manual - Page 17
...
continue cranking.
Since the auger brake is secure.
: Put your right hand until the engine runs.
To e if engine is warm. (also use this setting if the engine has been running but is still cold)
: Press the fuel pump bulb (5) at least...until you feel it is still engaged, the engine must be damaged.
16
BT 121 or the clutch might break.
: Do not let the starter grip snap back -
Instruction Manual - Page 21
...
BT 121 Adjusting Idle Speed
Engine stops while idling
: Carry out standard setting with a standard setting.
then turn counterclockwise.
: Start and warm up the engine.
: Adjust idle speed with the idle speed screw (LA) so that the throttle cable is idling
: Turn the idle speed screw (LA) counterclockwise until the engine runs smoothly - With this carburetor it...
Instruction Manual - Page 22
operating at high altitude
A slight correction may result in trouble in chapter "Starting / Stopping the Engine".
: Clean dirty spark plug. : Check the electrode gap (A) and
readjust if necessary - BT 121
21 Fine tuning the carburetor for operation at part load. Wrong fuel mix (too much oil in fuel mix. : Dirty air filter. : Unfavorable running conditions (mostly at idling...
Instruction Manual - Page 27
...
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 drilling spindle must not rotate
X
Readjust idle
Spark plug
Readjust electrode gap Replace after 100 hours of operation
Spark arresting screen in fuel tank
Check Replace
Fuel tank
Clean
Carburetor
Check idle adjustment -
Instruction Manual - Page 29
... operator.
6. Fuel Pump Provides additional fuel feed for a cold start the engine.
2. Choke Knob Operates choke to enrich the mixture for gearbox grease.
11. engine speed without auger Idle speed
1.88 cu.in (30.8 cm3) 1.38 in (35 mm) 1.26 in (32 mm)
1.8 bhp (1.3 KW)
12,300 rpm 2,800 rpm
28
BT 121 English / USA
Specifications
Definitions...
Instruction Manual - Page 32
...BT 121
31 Any replacement part or service that STIHL Incorporated may be repaired or replaced by STIHL Incorporated free of sale, to meet all applicable regulations. Your emission control system includes parts such as a problem exists. If you should be aware, however, that is defective, the part will begin on your equipment type engine. In the U.S.
new 1997 and later model...
Instruction Manual - Page 33
... services and adjustments necessary for required maintenance at and after the first scheduled replacement point.
32
BT 121 STIHL Incorporated is liable for damages to the first scheduled replacement point for that part.
Limitations
This Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts:
Carburetor Choke...
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