Stihl 021 Service & Repair Manual page 11

•
Fit the washer on the pivot pin.
1
•
Fit strap on the pivot pin (1)
and locate 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.
- Coat brake band with chain oil
(STIHL Bioplus), see 11.2,
protect it from corrosion and help
reduce "snatching" during the
first few brake applications.
021, 023, 025
•
Hook the brake spring onto the
bell crank.
2
•
Position the brake band around
the clutch and push it into the
engine housing.
to
•
Attach the brake spring to the
bell crank.
1
2
•
Use the assembly (2)
1117 890 0900 to attach the
brake spring (1) to the anchor
pin.
3
2
- Fit the bushing in the hand guard.
- Insert M5x24 screw and tighten
down to 3.5 Nm (2.6 lbf.ft).
•
On 023 L, push the rubber
bushing (1) into the hand guard
(2).
- Insert M5x32 screw (3) and
tighten down to 3.7 Nm
(2.8 lbf.ft).
- Fit the cover.
- Tighten screws to 2.0 Nm
(1.5 lbf.ft).
- Install clutch drum/chain
sprocket - see 4.1.
- Check operation of chain brake -
see 4.4.1.
1
11