21MS 210, MS 230, MS 250
: Position the hand guard (1) 
against the pivot pin and fit the 
other side of the hand guard over 
the housing.
: Position the bell crank (2) against 
the pivot pin.
VA
208RA109
2
1
: Push the hand guard and bell 
crank onto their pivot pins.
: Check that flat spring (1) is 
properly located on face (2) of 
hand guard bearing boss.
VA
135RA036
1
2
: Fit the washer.
VA
135RA031
: Fit strap on the pivot pin (1) and 
engage it in the pivot pin's 
groove.
: Slip the other end of the strap 
over the bell crank pivot pin (2).
– Secure strap with E-clip.
VA
135RA037
1 2
– Coat the brake band with chain 
oil (STIHL Bioplus), b 13, to 
protect it from corrosion and help 
reduce "snatching" during the 
first few brake applications.
: Hook the brake spring onto the 
bell crank.
VA
135RA038
: Position the brake band around 
the clutch and push it into the 
engine housing.
VA
135RA039
: Attach the brake spring to the bell 
crank.
V
A
13
5R
A
04
0