Stihl MS 440 - Page 20

19MS 440, MS 440 C
Install a new brake band if:
– there are noticeable signs of
wear (large areas on inside
diameter and/or parts of outside
diameter) and
– its remaining thickness is less
VA
176RA031
than 0.6 mm (0.02 in).
This minimum thickness must
remain at all points.
: If the brake band can be reused,
clean and roughen the entire
friction surface.
: Take out the screw (1).
VA
176RA005
1
: Remove the E-clip (arrow).
VA
176RA032
: Carefully pry the hand guard (1)
and bell crank (2) off the pivot
pins and remove all parts.
: Draw the bell crank out of the
hand guard.
VA
176RA033
1
2
: Remove the E-clip (1).
: Disconnect the spring (2) and
remove the cam lever (3).
– Examine the parts and replace
any defective elements.
VA
176RA034
3
1
4
2
– Clean the entire installation area
of the chain brake.
– If the groove on the pin (4) for the
brake spring is worn, the pin must
be replaced.
– Remove the cylinder – b 6.5.1