Stihl MS 171 User Guide - Page 94

Removing and Installing, 14.8.3 Manual Fuel Pump, Press Fluid

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14.8.2 Removing and Installing 1 1 533RA403 TG 533RA405 TG 533RA407 TG 1 - Remove the handle frame, b 11.4 : Pry out the tank vent (1) as shown (arrow). Always install a new tank vent. 1 2 2 - 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 - 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. 2 533RA404 TG 533RA406 TG 533RA408 TG - 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. 1 1 : Push the fuel hose (1) onto the stub (arrow). - Reassemble all other parts in the reverse sequence. - Tightening torques, b 3.5 : Press the retaining tabs (arrows) together and pull out the fuel pump (1). 14.8.3 Manual Fuel Pump - Pull the fuel pump (1) off the fuel hose (2). Not installed in all machine versions. A faulty manual fuel pump must be replaced. MS 171, MS 181, MS 211 93

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93
MS 171, MS 181, MS 211
14.8.2
Removing and Installing
–
Remove the handle frame,
b
11.4
:
Pry out the tank vent (1) as
shown (arrow).
Always install a new tank vent.
–
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.
533RA403 TG
1
533RA404 TG
2
1
–
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
:
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.
533RA405 TG
1
533RA406 TG
1
–
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.
:
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
533RA407 TG
1
533RA408 TG
2