Manual Stihl BR420 (page 10 of 74) (English)

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9BR 340, BR 340 L, BR 420, BR 420 C

English / USA

Working instructions

Work carefully.

When working with the blower, always

wear it on your back using the carrying

harness. Wrap your fingers tightly

around the handle, keeping the control

handle cradled between your thumb and

forefinger. Keep your hand in this

position to have your machine under

control at all times.

Make sure your control handle (and grip

for vacuum attachment) are in good

condition and free of moisture, pitch, oil

or grease.

Operate the blower under good visibility

and daylight conditions only.

!Warning!

Your blower produces

poisonous exhaust fumes

as soon as the combus-

tible engine is running.

These gases (e.g. carbon

monoxide) may be color-

less and odorless. To reduce the risk of

serious or fatal injury from breathing

toxic fumes, never start or run the blower

indoors or in poorly ventilated locations.

Ensure proper ventilation when working

in trenches or other confined areas.

Keep the space behind and beside the

engine clear at all times to allow for the

escape of hot and toxic exhaust fumes.

!Warning!

To reduce the risk of personal injury, do

not direct air blast towards bystanders,

since the high pressure of the air flow

could injure eyes and could blow small

objects at great speed.

!Warning!

Always shut off the engine before

cleaning or servicing the unit or

replacing parts.

!Warning!

The blower fan between the air intake

and output openings rotates whenever

the engine is running.

Never insert any foreign object into the

air intake of the machine or into the

nozzle of the blower. It will damage the

fan wheel and may cause serious injury

to the operator or bystanders as a result

of the object or broken parts being

thrown out at high speed.

Do not place the blower on the ground

when operating at high speed, because

small objects such as sand, grass, dust,

etc. may be pulled into the air intake and

damage the fan wheel.

To reduce the risk of stumbling and loss

of control,do not walk backward while

operating the machine.

In an emergency, you may slip out of the

harness and throw off the machine

quickly. Try slipping out of the harness a

number of times before using the

machine in order to become

accustomed with it.

Do not throw off the machine while

practising as it could damage the

machine.

Pay attention to the direction of the wind,

i.e., do not work against the wind.

353BA039 KN

My Stihl BR420/420C has after 15 years developed a gasoline leak. I fill tank with gasoline. Next day it’s empty. I removed tank, cleaned it up and inflated the tank with air compressor. Tank holds air without air leaks. Cleaned fuel lines. So no broken areas.
Can someone advise me on where to look and what to replace? Submitted on 1-12-2021 at 02:11
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Others manual(s) of Stihl BR420

Stihl BR420 User Manual - German - 36 pages

Stihl BR420 User Manual - Spanish - 70 pages

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Stihl BR420 Manual

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