Stihl SR 430 User Manual

75SR 430, SR 450
Pressure test
: Push the ring (1) to the right and
connect the pump (2)
0000 850 1300 to the nipple
(arrow)
– pressurize the fuel tank.
– Operate the pump until the
pressure gauge indicates a
pressure of 0.5 bar. If this
pressure remains constant for at
least 20 seconds, the tank,
including the tank vent, is airtight.
If the pressure drops, the leak
must be located and the faulty
part replaced.
Install new fuel hoses after
completing the test.
Take care not to damage the new
fuel hoses.
– Reassemble in the reverse
sequence.
– Install the fuel tank, b 9.12
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9.10.2 Removing and Installing
– Remove the shroud, b 4.4
: Pry the tank vent (1) out of its
seat (arrow).
Always install a new tank vent.
Installing
– Coat sealing ring of new tank
vent with STIHL press fluid,
b 13
– Position the tank vent so that the
shoulder (arrow) is not near the
recess used for removing the
vent.
: Push home the tank vent by hand
until it snaps into position.
– Test the tank vent, b 9.10.1
– Reassemble all other parts in the
reverse sequence.
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9.10.3 Manual Fuel Pump
– Remove the shroud, b 4.4
– Test the manual fuel pump
– fuel must be sucked in when
the manual fuel pump is
operated. Replace the pump if
necessary.
: Remove the fuel hose (1).
: Squeeze the lugs (arrows)
together and pull out the manual
fuel pump (1).
– Pull the manual pump (1) off the
fuel hose (2).
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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