Stihl MS 231 Manual page 27

2
: Attach the spring (1) to the brake
lever (arrow) so that the open
side of the spring hook (arrow) is
visible.
: Attach the spring (1) to the
anchor pin (2).
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
1
: Attach the spring (1) to the brake
lever (arrow).
26
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1
: Use the assembly tool
1117 890 0900 to disconnect the
brake spring (1) from the anchor
pin (arrow).
– Lubricate the brake lever, flat
spring and slot in hand guard,
b 14
– Adjust the brake cable, b 5.4.1
– Reassemble all other parts in the
reverse sequence.
5.4.1 Adjusting the brake cable
If problems occur on the coasting
brake even though the brake band
is in order, the reason may be the
adjustment of the brake cable.
– Troubleshooting, b 3.2
– Checking condition and free
travel
– Remove the chain brake cover,
b 5.2
The brake cable must be relaxed
when the lockout lever is released.
1
– Press down the lockout lever (1)
and hold it in that position.
The brake band (1) must locate
snugly against engine
housing (arrows) and the clutch
drum must rotate freely.
– Release the lockout lever.
: Carefully press the lockout
lever (1) to check free travel.
– Free travel must be within the
mark (a).
Free travel is the distance the
lockout lever (1) can be depressed
without the brake lever moving.
A certain amount of free travel is
necessary to guarantee correct
operation of the coasting brake.
– Troubleshooting, b 3.2
MS 231, MS 231 C, MS 251, MS 251 C
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