Instruction Manual

TS 410, TS 420
English
37
Basic information
The ignition system of this cut-off
machine is equipped with an electronic
maximum speed limiter. The maximum
speed cannot be increased beyond a
specified limit.
The carburetor comes from the factory
with a standard setting.
The carburetor has been adjusted for
optimum performance and fuel
efficiency in all operating states.
Preparing the machine
N Switch off the engine
N Check the air filter – clean or replace
it if necessary
N Check the spark arresting screen in
the muffler (present only in some
countries) – clean or replace it if
necessary
Standard setting
N Turn the high speed adjusting
screw (H) counterclockwise as far
as possible (max. 3/4 turn)
N Turn the low speed adjusting
screw (L) clockwise as far as
possible – then turn it 3/4 turn
counterclockwise
Setting the idle speed
N Make standard setting
N Start engine and let it warm up
Engine stops when idling
N Turn the idle speed adjusting
screw (LA) clockwise until the
abrasive wheel begins to rotate –
then turn it back 1 turn
Abrasive wheel runs when idling
N Turn the idle speed screw (LA)
counterclockwise until the abrasive
wheel stops running – then turn
another full turn in the same
direction
WARNING
If the abrasive wheel continues to keep
rotating in idle even after adjustment,
have the cut-off machine checked by a
servicing dealer.
Speed erratic when idling; poor
acceleration (despite adjustment to LA
setting)
The idle setting is too lean.
N Turn the low speed adjusting
screw (L) approx. 1/4 turn
counterclockwise until the engine
runs and accelerates smoothly –
max. up to the stop
Idle speed cannot be increased
sufficiently via the idle speed adjusting
screw (LA), engine stops when
changing from part-load to idle speed
The idle setting is too rich.
N Turn low speed adjusting screw (L)
approx. 1/4 turn clockwise.
Whenever the low speed adjusting
screw (L) has been adjusted, it is usually
also necessary to readjust the idle
speed adjusting screw (LA).
Adjusting the Carburetor
370BA029 KN
370BA090 KN