Stihl RMA 510 Instruction Manual page 23

WARNING
Replace a damaged mounting screw
and washer.
Sharpening the Cutting Blades
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.
Cool the cutting blade during
N
resharpening, e.g. with water.
Sharpen the cutting blade uniformly
N
to avoid out-of-balance and
vibrations.
Sharpen the cutting edges to an
N
angle of 30°.
Use fine emery paper to remove any
N
burrs from the cutting edges after
resharpening.
Installing the Cutting Blade
Clean mounting faces and
N
thread (1).
RMA 510
5
Fit the cutting blade (2) with the
N
upturned ends facing down – the
arrows (3) must engage the
holes (4) in the blade.
Use a suitable piece of wood (5) to
N
block the blade.
Check the blade mounting screw (6)
N
and washer (7) for damage.
WARNING
Replace a damaged mounting screw
and washer.
Insert the blade mounting screw (6)
N
with washer (7), tighten it down to a
torque of 35 Nm and secure with
Loctite 243 or Loctite 242.
WARNING
To reduce the risk of injury, the blade
mounting screw's specified tightening
torque must be maintained exactly, the
1
screw must be secured with Loctite and
be in perfect condition to guarantee the
security of the cutting blade.
2
3
4
7
6
English
21