Stihl MS 231 User Manual

23MS 231, MS 231 C, MS 251, MS 251 C
: Push the hand guard (1) with
brake lever (2) over the machine
until they are positioned against
the pivot pins (arrows).
: Lift the bearing boss of the hand
guard (1) and the brake lever (2)
a little and position them over the
pivot pins (arrows).
: Push the flat spring (1) slightly to
one side until the cam of the hand
guard (arrow) slips passed it.
2310RA024 TG
1
2
2310RA025 TG
1
2
2310RA026 TG
1
– Push the hand guard bearing
boss and the brake lever on to
the pivot pins.
: Fit the retaining ring (1).
The turns of the brake spring must
be tightly against one another in the
relaxed condition. If this is not the
case, replace the brake spring.
– If the groove in the brake spring's
anchor pin is worn, install a new
engine housing, b 6.6
2310RA027 TG
1
2310RA028 TG
: Hook the brake spring (1) to the
brake lever (arrow).
: Use the assembly tool (2)
1117 890 0900 to attach the
brake spring (1) to the anchor
pin (arrow).
– Lubricate the brake lever, flat
spring and slot in hand guard,
b 14
– Reassemble all other parts in the
reverse sequence.
TOP
2310RA029 TG
1
TOP
2310RA030 TG
1
2
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Stihl MS 231 Specifications

General

Power-to-Weight Ratio	2.4 kg/kW
Oilomatic Chain Pitch	3/8" P
Sound Pressure Level	103 dB(A)
Sound Power Level	114 dB(A)
Engine Power	2.0 kW
Weight	4.8 kg
Bar Length	35 cm / 40 cm
Fuel Capacity	390 cc
Chain Oil Capacity	200 ml
Vibration Level Left/Right	3.0/3.0 m/s²