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Always remove the power tool from your back

and put it on the ground before refueling. Fuel

the machine only when it is standing on the

ground.
Open the fuel cap carefully to allow any pressure

build-up in the tank to release slowly and avoid

fuel spillage.
Fuel your power tool only in well-ventilated

areas. If you spill fuel, wipe the machine immedi‐

ately – if fuel gets on your clothing, change

immediately.

Check for leakage. To reduce the risk

of serious of fatal burn injuries, do not

start or run the engine until leak is

fixed.

Screw-type fuel cap

After fueling, tighten down the screw-

type fuel cap as securely as possible.

This reduces the risk of unit vibrations causing

the fuel cap to loosen or come off and spill quan‐

tities of fuel.

2.7

Before Starting

Check that your power tool is properly assem‐

bled and in good condition – refer to appropriate

chapters in the instruction manual.

Check the fuel system for leaks, paying spe‐

cial attention to visible parts such as the tank

cap, hose connections and the manual fuel

pump (on machines so equipped). If there are

any leaks or damage, do not start the engine –

risk of fire. Have your machine repaired by a

servicing dealer before using it again.

Throttle trigger must move freely and spring

back to the idle position when released.

The setting lever must move easily to STOP or

0

The blower tubes must be properly assem‐

bled.

Keep the handles dry and clean – free from oil

and dirt – for safe control of the power tool.

Check that the spark plug boot is secure – a

loose boot may cause arcing that could ignite

leaking fuel-air mixture and cause a fire.

Never attempt to modify the controls or the

safety devices in any way.

Check condition of blower housing.

Check condition of harness straps and back‐

pack – replace damaged or worn straps.

A worn blower housing (cracks, nicks, chips)

may result in an increased risk of injury from

thrown foreign objects. If the blower housing is

damaged, consult your dealer – STIHL recom‐

mends you contact a STIHL servicing dealer.
To reduce the risk of accidents, do not operate

your power tool if it is not in a safe condition.
For emergencies: Practice quickly opening the

fastener on the waist belt, loosening the shoulder

straps and setting down the unit.

2.8

Start the engine.

Start the engine at least 3 meters from the fuel‐

ing spot, outdoors only.
Your power tool is designed to be operated by

one person only. Do not allow other persons in

the work area – even when starting.
Do not drop start the power tool – start the

engine as described in the instruction manual.
Place the power tool on level ground, make sure

you have secure footing, hold the power tool

securely.
As soon as the engine starts, the air flow may

throw small objects (e.g. stones) in your direc‐

tion.

2.9

During Operation

In the event of impending danger or in an emer‐

gency, switch off the engine immediately by mov‐

ing the setting lever to STOP or 0.

 

To reduce the risk of injury from thrown objects,

do not allow any other persons within 15 meters

of your own position.
To reduce the risk of damage to property, also

maintain this distance from other objects (vehi‐

cles, windows).

Do not direct the air blast towards

bystanders or animals since the air

flow can blow small objects at great

speed – risk of injury.

When blow-sweeping (in open ground and gar‐

dens), watch out for small animals to avoid harm‐

ing them.
Never leave a running machine unattended.
Take special care in slippery conditions – damp,

snow, ice, 

on slopes and uneven ground.
Watch out for obstacles: Be careful of refuse,

tree stumps, roots and ditches which could

cause you to trip or stumble.

English

2 Safety Precautions and Working Techniques

4

0458-456-8321-E

Summary of Contents for BR 350

Page 1: ...BR 350 2 19 Instruction Manual ...

Page 2: ... may modify the design engineering and appearance of our products periodically Therefore some changes modifications and improvements may not be covered in this man ual 2 Safety Precautions and Working Techniques Special safety precautions must be observed when working with a power tool It is important that you read the instruction manual before first use and keep it in a safe place for future refe...

Page 3: ...he influence of any substance drugs alcohol which might impair vision dexterity or judgment 2 3 Intended Use The blower is designed for blow sweeping leaves grass paper and similar materials e g in gardens sports stadiums car parks and drive ways It is also suitable for blow sweeping forest paths Do not blow sweep hazardous materials Do not use the machine for any other purpose because of the incr...

Page 4: ...ss straps and back pack replace damaged or worn straps A worn blower housing cracks nicks chips may result in an increased risk of injury from thrown foreign objects If the blower housing is damaged consult your dealer STIHL recom mends you contact a STIHL servicing dealer To reduce the risk of accidents do not operate your power tool if it is not in a safe condition For emergencies Practice quick...

Page 5: ...rials e g wood chips bark dry grass fuel If your power tool is subjected to unusually high loads for which it was not designed e g heavy impact or a fall always check that it is in good condition before continuing work see also Before Starting Work Check the fuel system in particular for leaks and make sure the safety devices are working properly Do not continue operating your power tool if it is ...

Page 6: ...nd meet your performance requirements To reduce the risk of injury always shut off the engine before carrying out any maintenance or repairs or cleaning the machine Exception Carburetor and idle speed adjustments Do not turn the engine over on the starter with the spark plug boot or spark plug removed since there is otherwise a risk of fire from uncontained sparking Do not service or store your ma...

Page 7: ...tting the Harness 0009BA007 KN 5 7 Push the blower tube 5 into the stub of plea ted hose 4 as far as the stop Move the control handle 7 along the tube to the most comfortable position Tighten down the screw on the control han dle 7 4 Adjusting the Throttle Cable It may be necessary to correct the adjustment of the throttle cable after assembling the machine or after a prolonged period of operation...

Page 8: ... rat ing of at least 90 ROC leaded or unleaded Gasoline with an alcohol component exceeding 10 can cause impaired engine performance in engines with manually adjustable carburetors and thus should not be used in these engines Engines with M Tronic deliver full engine per formance using gasoline with an alcohol compo nent of up to 27 E27 6 2 2 Engine oil If you mix the fuel yourself use only STIHL ...

Page 9: ...BA086 KN Before fueling clean the filler cap and the area around it to ensure that no dirt falls into the tank Position the machine so that the filler cap faces up 7 2 Opening screw type tank cap 002BA447 KN Turn the cap counterclockwise until it can be removed from the tank opening Remove the cap 7 3 Filling up with fuel Take care not to spill fuel while fueling and do not overfill the tank STIHL...

Page 10: ... Throttle trig ger 2 can be moved to any position Switch off engine Ignition is interrupted engine stops The setting lever 1 is not locked in this position It springs back to the run position F The ignition is again ready for operation Lock position C The throttle trigger 2 can be locked in three positions 1 3 throttle 2 3 throttle and full throttle To disengage the lock move the setting lever 1 b...

Page 11: ...ers are well clear of the nozzle outlet Make sure you have a firm footing Hold the unit with your left hand on the housing and put one foot against the base plate to prevent it slipping Pull the starter grip slowly with your right hand until you feel it engage and then give it a brisk strong pull Do not pull out the starter rope to full length it might otherwise break Do not let the starter grip s...

Page 12: ...Check that the spark plug boot is properly con nected Repeat the starting procedure Fuel tank run until completely dry After refueling press the manual fuel pump bulb at least five times even if the bulb is fil led with fuel Set the choke knob according to engine tem perature Start the engine 10 Operating Instructions 10 1 During Operation After a long period of full throttle operation allow the e...

Page 13: ...ssary see chapter on Adjusting the Throttle Cable Check the spark arresting screen not in all models country specific in the muffler and clean or replace if necessary 12 3 Standard Setting 0002BA082 KN H L Turn high speed screw H counterclockwise as far as stop no more than 3 4 turn Turn the low speed screw L clockwise as far as stop then turn it back 3 4 turn 12 4 Adjusting Idle Speed Carry out t...

Page 14: ...suppressed spark plugs of the type approved by STIHL see Specifica tions 13 1 Removing the spark plug 2 0002BA049 KN Pull off the spark plug boot 1 vertically Unscrew the spark plug 2 13 2 Checking the Spark Plug 000BA039 KN A Clean dirty spark plug Check electrode gap A and readjust if neces sary see Specifications Rectify the problems which have caused foul ing of the spark plug Possible causes ...

Page 15: ...park Arrestor in Muffler and Spacer WARNUNG To reduce the risk of damage to persons or objects from contact with hot parts never oper ate the machine without a spacer or with the spacer damaged If the engine is down on power have the spark arrestor in the muffler checked 0002BA095 KN Check the spacer for damage Have a damaged spacer replaced immediately 17 Maintenance and Care The following interv...

Page 16: ...ed by serv icing dealer1 X X Fuel tank Clean X Carburetor Check idle speed X X Readjust idle speed X Spark plug Adjust electrode gap X Replace after every 100 hours of operation Intake port for cooling air Visual inspection X Clean X Spark arresting screen in muffler Check if installed X Check or replace1 X Spacer shim check X Have replaced by serv icing dealer1 X X All accessible screws nuts and ...

Page 17: ...19 2 Ignition system Electronic magneto ignition Spark plug suppressed NGK BPMR 7 A Bosch WSR 6 F Electrode gap 0 5 mm 19 3 Fuel system All position diaphragm carburetor with integral fuel pump Fuel tank capacity 1700 cm3 1 7 l 19 4 Blowing capacity Blowing force 17 N Air velocity 75 m s Air throughput 740 m3 h Maximum air speed 90 m s Maximum air flow rate without blower tube 1150 m3 h 19 5 Weigh...

Page 18: ...hine may only carry out the maintenance and service work described in this user manual All other repairs must be carried out by a servicing dealer STIHL recommends that you have servicing and repair work carried out exclusively by an author ized STIHL servicing dealer STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical informat...

Page 19: ...ave been determined in accordance with Directive 2000 14 EC Annex V and standard ISO 11094 Measured sound power level BR 350 105 dB A Guaranteed sound power level BR 350 107 dB A Technical documents deposited at ANDREAS STIHL AG Co KG Produktzulassung Product Licensing The year of manufacture and serial number are applied to the product Done at Waiblingen 03 03 2020 ANDREAS STIHL AG Co KG Dr Jürge...

Page 20: ...www stihl com 04584568321E 04584568321E 0458 456 8321 E 0458 456 8321 E ...

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