Maintenance; Carburetor - RedMax BC280 Owner's/Operator's Manual

STARTING AND STOPPING
Warm engine
With a warm engine, move the blue engine
choke lever to the ½ position. Pull starter
rope until engine runs. Move the blue
engine choke lever to the opened position.
The owner is responsible for the perfor-
mance of all required maintenance as
defined in the operator's manual.
WARNING:
Improper mainte-
nance could result in serious engine
damage or in serious injury.

Carburetor

Your product has been designed and
manufactured to specifications that reduce
harmful emissions. After the engine has
used 8- -10 tanks of fuel, the engine will be
run- -in. To ensure that it continues to run at
peak performance and to minimize harmful
exhaust emissions after the run- -in period,
ask your servicing dealer to adjust your car-
buretor.
WARNING:
The complete clutch,
clutch cover, and shaft must be
fitted before the machine is started,
otherwise parts could come loose
and cause personal injury.
Function
S The carburetor governs the engine's
speed via the throttle control. Air and fuel
are mixed in the carburetor.
S The T- -screw regulates the throttle setting
at idle speed. If the T- -screw is turned
clockwise this gives a higher idle speed;
turning it counterclockwise gives a lower
idle speed.
Basic setting
S The basic carburetor settings are ad-
justed during testing at the factory. Fine
adjustment should be carried out by a
skilled technician.
115391527 Rev. 4 5/15/12
Stopping
Stop the engine by pushing and holding
the stop switch in the STOP position until
the engine stops.
WARNING:
started with the choke in the closed
position the cutting attachment will
start to rotate immediately.

MAINTENANCE

WARNING:
ment may be spinning during carbu-
retor adjustments. Wear your protec-
tive equipment and observe all safe-
ty instructions. Be sure the cutting
attachment stops turning when the
engine idles. When the unit is turned
off, make sure the cutting attach-
ments has stopped before the unit is
set down.
CAUTION! If the cutting attachment rotates
when the engine is idling the idle adjustment
screw T should be turned counterclockwise
until the cutting attachment stops.
Rec. idle speed:
See "Technical data" section.
Recommended max. speed:
See "Technical data" section.
Fine adjustment of the idle speed- -T
Adjust the idle speed using the idle adjust-
ment screw- -T if it is necessary to readjust.
First, turn the idle adjustment screw- -T
clockwise until the cutting attachment starts
to rotate. Then, turn the screw counterc-
lockwise until the cutting attachment stops.
The idle speed is correctly adjusted when
the engine will run smoothly in every posi-
tion. The idle speed should also be well
below the speed at which the cutting at-
tachment starts to rotate.
When the engine is
The cutting attach-
Idle Speed
Screw- -T
English--- 17