0458-507-0121-A
30
English
19 Specifications
Engine stops while idling
► Turn the idle speed screw (LA) clockwise until the cutting
attachment begins to rotate.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
Erratic idling behavior or poor acceleration
► Turn the low speed screw (L) clockwise or
counterclockwise until the engine runs and accelerates
smoothly.
Cutting attachment rotates when engine is idling
► Turn the idle speed screw (LA) counterclockwise until the
cutting attachment stops rotating.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
18.5 Clearing the Combustion Chamber
► Pull off the spark plug boot (1).
► Unscrew the spark plug (2).
► Dry the spark plug (2).
WARNING
Unconfined sparks may occur if the starter grip is pulled after
the spark plug boot has been removed. Sparks may cause a
fire or an explosion in an easily combustible or explosive
environment. This can result in serious or fatal injuries and
damage to property.
► Move the slide control to position before
pulling the starter grip.
► Move the slide control to position .
► Pull the starter grip (3) several times and guide it back
slowly.
The combustion chamber is cleared.
► Insert and tighten down the spark plug (2) firmly.
► Connect the spark plug boot (1) and press it down firmly.
19.1 STIHL FS 235 Trimmer
– Displacement: 36.3 cc
– Engine power to ISO 8893: 1.55 kW (2.1 bhp) at
9,000 rpm
– Idle speed: 2,800 rpm
– Max. output shaft speed: 7,900 rpm
– Approved spark plug: Bosch WSR 6 F from STIHL
– Electrode gap: 0.5 mm
– Dry weight without cutting attachment and deflector:
6.8 kg
– Length without cutting attachment: 1807 mm
– Max. fuel tank capacity: 810 cc (0.81 l)
2
3
1
0000-GXX-4736-A0
19 Specifications
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