Catalytic Converter Machines Only - Stihl MS 460 Service Manual

1
: Inspect spark arresting screen (1)
(if fitted). If necessary, bend back
the retaining tabs (2) and pull out
the screen (not on MS 460
Magnum).
– Clean or replace the spark
arresting screen if necessary.
On MS 460 Magnum, perform the
two following steps to clean the
spark arresting screen.
1
MS 460 Magnum only
: Take out the screws (1).
– Remove the cover plate (2).
MS 460, MS 460 C
2
: Remove the spark arresting
screen (arrow).
– Clean the spark arresting screen
or fit a new one if necessary.
1
Catalytic converter machines
only
: If there are signs of cracks in the
honeycomb core (1), or if the
steel jacket is damaged, the
catalytic converter must be
replaced to avoid the risk of
engine damage.
2
: Inspect the heat reflecting foil and
replace if necessary, b 6.7.2
2
3
: Place heat shield (1) in position.
: Install a new gasket (2) so that its
bead (3) points outward.
– Coat threads of screws with
Loctite, b 16.
– Tighten down the screws firmly –
b 3.5
Note different sizes of mounting
screws when fitting top casing:
Lower mounting screws are M6x20
and the upper mounting are M5x6.
1
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