Technical Information · issue 13 of 2011

New STIHL BR 200 Backpack Blower

IssueTI 13/2011

Full text

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STIH)

Technical Information 13.2011

New STIHL BR 200 Backpack Blower – Series 4241

Contents
1. Technical Description
2. Specifications
3. Special Accessories
4. Servicing Accessories
5. Service Notes

TI_13_2011_30_01_01.fm englisch / English
)m~ge 2 Technical Information 13.2011

The new BR 200 backpack blower is the latest 1. Technical Description
addition to the STIHL line of entry-level units.
The BR 200 is a backpack alternative to the 1.1 2-Cycle Engine with Stratified
handheld BG 86 with equivalent blowing Scavenging
performance. The engine installed in the new blowers uses our
A special feature of the new blower is the simplified new 2-cycle technology for fuel-efficient and low
starting procedure – the choke knob and the manual emission operation.
fuel pump need only be operated once for each
start.
Method of operation
The new blowers are powered by the particularly
A layer of fuel-free air separates the fresh mixture
fuel-efficient, low emission
from the exhaust gas. This layer of air flows into the
STIHL 2-cycle engine,
cylinder ahead of the fresh mixture.
At the start of the scavenging and intake stroke,
Target groups fuel-free air flows into the combustion chamber first
– Private users and pushes the exhaust gas into the exhaust port.
This layer of air prevents the subsequent charge of
– Service providers in outdoor maintenance fresh mixture from escaping through the exhaust
port.
Applications The reduction in scavenging loses results in less
emissions and a lower fuel consumption.
– Garden and landscape care
– Sports facilities
– Parks 1.2 Blowing Attachment
The blowing attachment must be properly mounted
before the machine is operated – see instruction
manual.

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Technical Information 13.2011 Page 3

1.3 Control Handle 1.4 Starting Procedure
Centralized controls for start.
Choke knob is used to select starting throttle
position.
1
Choke knob returns automatically to the normal run
position F when the throttle trigger is operated.
. Setting lever on control handle must be in run
position F.
2

0009TI002 KN
Run position F
Engine is running or is ready to start. Throttle
trigger (2) can be moved to any position.

9928TI001 AM
Stop engine †
Ignition is interrupted, engine stops. The setting
. Press fuel pump bulb at least 5 times.
lever (1) does not remain in this position, i.e. it
springs back to the run position F.
The ignition is again ready for operation.

Fixed throttle

9928TI002 AM
Cold engine
2 . Turn choke knob to g.
0009TI003 KN

. Continue cranking until engine runs.
Warm engine
The throttle trigger (2) can be locked in any position . Turn choke knob to <.
by operating the setting lever (1). . Continue cranking until engine runs.
To disengage the lock:
Return the setting lever (1) to the run position F.

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2. Specifications

2.1 Engine 2.3 Blower Data
STIHL single cylinder two-stroke engine with Maximum air flow rate: 471 cf/min (800 m³/h)
stratified scavenging Air flow rate with nozzle: 406 cf/min (690 m³/h)
Displacement: 1.66 cu. in. (27.2 cm³) Air velocity with nozzle: 132 mph (59 m/s)
Bore: 1.34 in. (34 mm)
Stroke: 1.18 in. (30 mm)
Idle speed: 2.500 rpm 2.4 Ignition System
Engine power to Spark plug
ISO 7293: 0.8 kW (1.1 bhp) (resistor type): NGK CMR 6 H
Electrode gap: .020 in. (0.5 mm)

2.2 Fuel System
2.5 Noise and Vibration Data
2.2.1 Carburetor
See instruction manual.
Standard setting with limiter cap on the high For further details on compliance with vibration
speed screw H: Directive 2002/44/EC – see www.stihl.com/vib/.
High speed screw H: Turn counterclockwise
as far as stop – no
more than 3/4 (12/16)
2.6 Weight
turn
Low speed screw L: Open 1 (16/16) turn dry 12.6 lbs (5.7 kg)

Basic setting without limiter cap:
High speed screw H: Open 1 1/2 (24/16)
turns.
Low speed screw L: Open 1 (16/16) turn

2.2.2 Fuel Tank
Fuel tank capacity: 35.5 fl. oz. (1.05 l)

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Technical Information 13.2011 Page 5

3. Special Accessories

Part Name Part No. Description
Chest strap 0000 790 7700 For snug fitting shoulder straps.
Control handle 4241 790 1300 Control handle with antistatic system

4. Servicing Accessories

4.1 Servicing Aids

Part Name Part No. Application
Lubricating grease – 225 g tube 0781 120 1111 Oil seals, sliding and bearing points
STIHL press fluid OH 723 0781 957 9000 Rubber elements, fuel hoses, etc.
Dirko HT red sealant 0783 830 2000 Engine pan
Standard commercial solvent- Cleaning sealing faces and carburetor, crankshaft stubs
based degreasant containing no and flywheel taper.
chlorinated or halogenated
hydrocarbons

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4.2 Special Servicing Tools
No new special tools are required for models
BR 200.
Existing special servicing tools are listed in the
service manual for the STIHL BR 200.

Modification
Installing tool 1116 893 4800 is designed to install The diameter of the bore in the installing tool must
the rewind spring in the starter. be increased from 10.5 mm to 11 mm.
The existing installing tool has to be modified as Only the modified version of installing tool
shown in the following drawing so that it can be used 1116 893 4800 is available from the factory. It is
for the BR 200. identified by the suffix A in the part number.

10,5 mm 11 mm

1116 893 4800 1116 893 4800 A

9928TI004 AM

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Technical Information 13.2011 Page 7

5. Service Notes 5.4 Repair Times

If the machine is started in the course of repairs, it is The specified repair times assume that the work is
essential to observe all country-specific safety performed by trained personnel in a properly
regulations and the safety precautions in the equipped service workshop.
instruction manual. Repair times are quoted in minutes.

5.1 Service Manual Repair procedure BR 200
2 Replace crankcase, crankcase
The STIHL BR 200 service manual is available for
gasket or re-seal crankcase.
servicing and repairs.
Includes air leak test. 60
3 Replace crankshaft main bearing(s).
Includes air leak test. 60
5.2 Tightening Torques
4 Replace crankshaft seal(s). Includes
Tightening torques are listed in the service manual air leak test. 60
for the STIHL BR 200. 5 Replace tank filler cap. 3
6 Replace cylinder and/or piston.
Includes air leak test and diagnosis
5.3 Position of Serial Number and repair of component(s) that
caused failure. 45
7 Replace ignition module. Includes
stop circuit test. 25
8 Replace fuel tank line, tank vent, or
fuel pick-up body. 20
9 Replace intake manifold or intake
flange. 20
10 Repair or replace carburetor.
Includes fuel system testing. 30
9928TI003 AM

11 Repair throttle control. 20
12 Repair or replace rewind starter. 15
13 Replace fan wheel. 30
The serial number is located on the inside of the air
14 Replace muffler. 30
filter housing.
15 Replace air filter or filter housing. 15
16 Repair or replace stop switch.
Includes circuit testing. 20
17 Replace fan housing. 30
18 Replace pleated tube. 15
19 Replace air discharge tube or elbow. 15
20 Replace back plate. 15
21 Replace shoulder strap(s) 15
22 Replace fuel tank. 25
35 Engine diagnosis only to determine
failures requiring unit replacement. 25
40 Miscellaneous repairs and other
repairs not listed. 15
45 Handling allowance only-no labor. 5
50 No labor. 0

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