Stihl MS 271 Manual page 79

2
: Pull the worm (1) with drive
spring (2) out of the oil pump.
– Check the spring and worm and
replace if necessary.
2
1
: Take out the screws (1) and lift
the oil pump (2).
: Pull the oil pump (1) off the oil
suction hose (2).
– Check the oil pump (1) and
replace it if necessary
78
Installing
1
: Replace the sealing ring (1) –
always use a new sealing ring.
1
: Position the oil suction hose (1)
so that the lugs (arrows) are in
alignment.
: Push the oil suction hose (1) onto
the nipple.
1
2
1
1
: Position the oil pump (1) so that
its rear connector (arrow)
engages the bore.
: Insert and tighten down the
screws (2) firmly.
– Push the worm fully home.
1
1
: Push the washer (1) into position.
Installed position is correct when
"TOP" (arrow) faces outwards.
– Reassemble all other parts in the
reverse sequence.
2
2
MS 271 C, MS 291 C