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86
MS 231, MS 231 C, MS 251, MS 251 C
:
Pull the fuel hose (1) and fuel
return hose (2) out of the air
guide shroud.
– Remove the air guide shroud.
:
Remove the fuel pump (1) with
the fuel hoses and elbow
connector (2), inspect and
replace if necessary,
b
12.11.4
– Pull out the shutter , check it and
replace if necessary.
Installing
– Remove the grommet, check and
replace if necessary.
2310RA339 TG
2
1
2310RA340 TG
1
2
2310RA341 TG
1
– Coat outside of grommet with
STIHL press fluid to simplify
installation,
b
14
:
Fit the grommet (1) in the
hole (arrow) and make sure it is
properly seated.
– Install fuel pump with fuel hoses
and elbow connector,
b
12.11.4
:
To fit the manifold (2) through the
air guide shroud's opening, wind
a piece of string (1) (about 15 cm
long) around the back of manifold
flange.
2310RA324 TG
1
2310RA325 TG
2
1
– Coat manifold flange with STIHL
press fluid to simplify installation,
b
14
:
Place the air guide shroud (1) in
position.
:
Push the new fuel hose (2)
through the bore (arrow).
– Use STIHL press fluid to simplify
assembly,
b
14
:
Push the new fuel hose (3)
through the grommet (4).
2310RA342 TG
3
1
2
4
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