Stihl SR 430 User Manual

74 SR 430, SR 450
9.10 Tank Vent
9.10.1 Testing
If problems occur on the carburetor
or the fuel supply system, also
check and clean the tank vent and
replace it if necessary. Check
function by performing pressure and
vacuum tests on the tank via the fuel
hose.
– Open the fuel tank cap and drain
the fuel tank, b 1.1
– Close the tank cap.
– Remove the filter housing, b 9.4
: Pull the fuel hoses (1) out of the
guides (arrows).
– Pull the fuel suction hose (1) off
the nipple (arrow).
0002RA085 TG
1
1
0002RA223 TG
1
: Pull the fuel return hose (1) off
the manual fuel pump (arrow).
: Take out the screws (1) and
remove the fuel tank (2).
: Seal one fuel hose (arrow) with a
plug.
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1
0002RA310 TG
2
1
1
0002RA280 TG
: Push the nipple (1)
0000 855 9200 into the fuel
hose (arrow).
Vacuum test
: Push the ring (1) to the left and
connect the pump (2)
0000 850 1300 to the
nipple (arrow) – subject the fuel
tank to a vacuum.
Equalization of pressure takes
place via the tank vent. There must
be no buildup of vacuum in the tank.
– Clean the area around the tank
vent.
– If necessary, install a new tank
vent or tank, b 9.10
0002RA281 TG
1
0002RA282 TG
1
2

Stihl SR 430 Specifications

General

Product type	Backpack garden sprayer
Product color	Black, Orange, White
Tank capacity	14 L

Weight and Dimensions

Weight	12200 g