RMA 370
English
24
Removing the Cutting Blade
N Use a suitable piece of wood (2) to
block the cutting blade (1).
N Unscrew the blade mounting
screw (3) and remove the blade.
N Check the blade mounting screw for
damage.
WARNING
Replace a damaged mounting screw.
Sharpening Instructions
STIHL recommends that you have the
blade resharpened by your dealer. An
incorrectly ground cutting blade (wrong
sharpening angle, out-of-balance) can
cause running problems – STIHL
recommends a STIHL servicing dealer.
N Cool the cutting blade during
resharpening, e.g. with water.
N Sharpen the cutting blade uniformly
to avoid out-of-balance and
vibrations.
N Sharpen the cutting edges to an
angle of 30°.
N Use fine emery paper to remove any
burrs from the cutting edges after
resharpening.
Installing the Cutting Blade
N Clean mounting faces and
thread (1).
N Fit the cutting blade (2) with the
upturned ends facing up – the
retaining lugs (3) must engage the
holes (4) in the blade.
N Use a suitable piece of wood (5) to
block the blade.
N Check the blade mounting screw (6)
for damage.
WARNING
Replace a damaged mounting screw.
N Coat mounting screw with
Loctite
®
243
™
or Loctite
®
242
™
, fit
it and tighten it down to a torque of
9.5 ft
-
lbs (12 Nm).
WARNING
To reduce the risk of injury, the blade
mounting screw's specified tightening
torque must be maintained exactly, the
screw must be secured with Loctite and
be in perfect condition to guarantee the
security of the cutting blade.
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