Stihl GH 460, Instruction Manual

Page: 67 / 368

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0478 216 9906 A - EN
● After sharpening, remove any
sharpening burr at the cutting edge
using fine sandpaper.
1 2.9 Wear limits of the blades
1 Blade overview
2 wing blades (1)
6 blades (2)
1 blades (3)
1 counter-blade (4)
Soft material blade disc:
The soft material blade disc is fitted with
four blades.
Hard material blade disc:
The hard material blade disc is fitted with
two blades and one chipping blade.
● Removing the blade discs. ( Ö 12.3)
2 wear limit of wing blades ( 1 ):
Minimum blade width (A) of the two wing
blades (1):
A = 39 mm
3 Wear limit of blades (2):
● Measure the distance (B) shown in the
illustration from the large diameter of
the bore to the cutting edge (X).
● Repeat this procedure at the second
bore on the blade.
Minimum distance (B) on the blades (2):
B = 6 mm
4 Wear limit of blade (3):
● Measure the distance (C) at a right
angle to the cutting edge.
Minimum distance (C) on the blade (3):
C = 7 mm
5 Wear limit of counter-blade (4):
● The counter-blade (4) must be replaced
before the edge (D) at the tip (5) of the
blade is ground down and no longer
visible.
1 2. 1 0 Service interval of the
combustion engine
Maintenance interval:
Before each use:
Perform oil check ( Ö engine instruction
manual). Observe the operating and
maintenance instructions contained in the
accompanying engine instruction manual.
1 2. 11 Service intervals
Service by the specialist dealer
We recommend that you have your garden
shredder serviced once a year by a
specialist dealer.
STIHL recommends STIHL specialist
dealers.
Professional use (commercial use of the
garden shredder):
every six months
Private use:
once a year
The blades must be reversed or
replaced before reaching the
specified wear limits (A, B, C, D).
STIHL recommends STIHL
specialist dealers.
The specified values should be
measured at several points (two or
three recommended) along the
cutting edge on all the blades.
Use the smallest value for a blade.
We recommend that you always
reverse or replace all the blades at
the same time.
The measurement procedure and
the value specified are the same for
both wing blades.
29
Asymmetrical wear may occur at
the two wing blades due to uneven
use of the cutting edges.
The blades (2) are reversible
blades. After reaching the specified
wear limit (B), the blade can be re-
sharpened and reversed until the
wear limit is reached, before
needing to be replaced.
The particular blade (2) must be
reversed or replaced if one of the
two distances measured is less
than the minimum distance (B).
The blade (3) is a reversible blade.
On reaching the specified wear
limit (C), the blade (3) can be re-
sharpened and reversed until the
wear limit is reached, before
needing to be replaced.
The blade (3) must be reversed or
replaced if the distance measured
is less than the minimum
distance (C).
Asymmetrical wear may occur at
the counter-blade (4) due to
uneven use of the cutting edge.