Operators Manual

TS 410, TS 420
English
31
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 Carry out the 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 cutting wheel begins to
turn – then turn it back 1 turn
Abrasive cutting wheel rotates when
idling
N Turn the idle speed adjusting
screw (LA) counterclockwise until
the abrasive cutting wheel stops
rotating – then give the screw
another full turn in the same
direction
WARNING
If the abrasive cutting wheel continues to
rotate 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).
Correcting the carburetor setting for use
at high altitudes
The setting may have to be marginally
corrected if engine performance is
unsatisfactory at high altitudes:
N Carry out the standard setting
N Allow engine to warm up
N Turn the high speed adjusting
screw (H) slightly clockwise (leaner)
– max. up to the stop
NOTICE
After descending from a high altitude,
restore the carburetor setting to the
standard setting.
If you make the setting too lean it will
increase the risk of engine damage
through lack of lubrication and
overheating.
370BA029 KN
370BA090 KN