Manual Fuel Pump - Stihl MS 171 Manual

14.8.2 Removing and Installing
1
– Remove the handle frame,
b 11.4
: Pry out the tank vent (1) as
shown (arrow).
Always install a new tank vent.
1
– Disconnect the fuel hose (1),
check and replace if necessary.
: Push the new tank vent (2) into
the fuel hose (1) as far as stop.
MS 171, MS 181, MS 211
All manuals and user guides at all-guides.com
– Coat seat of tank vent with STIHL
Press Fluid, b 16
: Press the tank vent into its seat
(arrows) in the handle frame (1)
by hand.
– Install the handle frame, b 11.4
2
: Push the fuel hose (1) onto the
stub (arrow).
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.5
14.8.3

Manual Fuel Pump

Not installed in all machine
versions. A faulty manual fuel pump
must be replaced.
1
2
– Remove the filter base, b 14.2
– Remove the carburetor, b 14.3
: Pull the fuel hose (1) out of the
guides (arrows).
: Check the fuel hose (1), pull it off
the connector (2) and replace if
necessary.
– Install in the reverse sequence.
1
: Press the retaining tabs (arrows)
together and pull out the fuel
pump (1).
– Pull the fuel pump (1) off the fuel
hose (2).
1
2
1
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