Checking And Replacing The Chain Sprocket - Stihl HT 131 Instruction Manual

Checking and Replacing the
Chain Sprocket
Remove the chain sprocket cover,
N
chain and guide bar.
Replace the chain sprocket
a
after using two saw chains or
–
sooner
if the wear marks (a) on the sprocket
–
are deeper than approx. 0.5 mm
since this would reduce the life of
the chain. You can use a gauge
(special accessory) to check the
depth of the wear marks.
It is best to use two saw chains in
rotation with one sprocket.
STIHL recommends the use of original
STIHL chain sprockets.
HT 131
The chain sprocket is driven via a friction
clutch. Have the chain sprocket replaced
by a servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
English
29