STIHL 020 T
13
3.3
Chain Sprocket
3.4
Disassembling
Chain Brake
• Attach one end of each spring
(1) to the clutch shoes.
• Use the assembly hook (2) to
attach the other ends of the
springs and press them firmly
into the clutch shoes with one
finger.
• Remove clutch - see 3.1.
• Pull chain sprocket off the cranks-
haft.
• Remove sprocket cover –
see 3.1.
• Engage brake band by pushing
the hand guard away from the
sprocket cover.
• Take out screws (1).
• Remove the segment (2).
• Take the needle cage out of the
sprocket.
• Clean stub of crankshaft.
Wash needle cage in clean white
spirit and lubricate with grease
- see 11.2. Replace damaged
needle cage.
• The chain sprocket must engage
the worm properly.
• Install clutch - see 3.2.
• Screw clutch onto crankshaft and
torque down to 32.5 Nm (24 Ibf.ft).
• Remove locking strip from
cylinder. Install spark plug and
torque down to 25 Nm (18.5 Ibf.ft).
Refit terminal.
• Fit sprocket cover so that pin (1)
engages hole (2).
• Fit the collar nut.
• Carefully pry the brake spring (1)
off the anchor pin and unhook it
from the bell crank (2).
