Oil Pump - Stihl MS 311 Manual

11.3

Oil Pump

– Troubleshooting, b 3.3
– Remove the brake band, b 5.2
– Remove the clutch, b 4
1
: Remove the washer (1).
2
: Pull the worm (1) with drive
spring (2) out of the oil pump.
: The spring (1) and worm (2) form
a single unit and must be
replaced if damaged.
66
: Pull off the oil suction hose (1).
1
: Take out the screws (1).
1
1
: Pull the oil pump (1) off the
nipple (2) and then lift it off over
the crankshaft stub.
1
2
Installing
1
1
: Fit the oil pump (1) over the
crankshaft stub (2).
1
: Push the connector (1) onto the
nipple (arrow).
2
2
1
MS 311, MS 391