Stihl BG 46 Instruction Manual - Page 17

Operating Instructions, Cleaning the Air Filter, If there is a noticeable loss of, engine power

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english / USA Operating Instructions Cleaning the Air Filter During break-in period A factory new machine should not be run at high revs (full throttle off load) for the first three tank fillings. This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings. During operation After a long period of full-throttle operation, allow engine to run for a while at idle speed so that the heat in the engine can be dissipated by flow of cooling air. This protects enginemounted components (ignition, carburetor) from thermal overload. After finishing work Wait for engine to cool down. Drain the fuel tank . Store the machine in a dry place. Check tightness of nuts and screws (not adjusting screws) at regular intervals and retighten as necessary. 2 1 Dirty air filters reduce engine power increase fuel consumption and make starting more difficult. If there is a noticeable loss of engine power : Move choke lever to g : Squeeze the tabs (1) together, swing filter cover (2) open and take it away. : Clean away loose dirt from around the filter. 43 : Take the filter (3) out of the housing (4). : Install a new filter. As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air - do not wash! : Replace any damaged parts. : Fit the filter (3) in the housing (4). : Fit the filter cover (2) so that it snaps into positon. 295BA019 KN 295BA046 KN 16 BG 46

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16
english / USA
BG 46
During break-in period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessary high loads during the
break-in period.
As all moving parts have to bed in during
the break-in period, the frictional
resistances in the engine are greater
during this period. The engine develops
its maximum power after about 5 to 15
tank fillings.
During operation
After a long period of full-throttle
operation, allow engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After finishing work
Wait for engine to cool down. Drain the
fuel tank . Store the machine in a dry
place. Check tightness of nuts and
screws (not adjusting screws) at regular
intervals and retighten as necessary.
Dirty air filters reduce engine power
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of
engine power
:
Move choke lever to
g
:
Squeeze the tabs
(1)
together,
swing filter cover
(2)
open and take
it away.
:
Clean away loose dirt from around
the filter.
:
Take the filter
(3)
out of the
housing
(4)
.
:
Install a new filter. As a temporary
measure you can knock it out on the
palm of your hand or blow it out with
compressed air –
do not
wash!
:
Replace any damaged parts.
:
Fit the filter
(3)
in the housing
(4)
.
:
Fit the filter cover
(2)
so that it snaps
into positon.
Operating Instructions
Cleaning the Air Filter
1
295BA019 KN
2
4
295BA046 KN
3