Stihl MS 270

Online version - not for reprint
70 MS 270, MS 280
Check the suction hose and pickup
body before replacing the oil pump.
– Remove the clutch – see 5.3.
– Remove the brake band
– see 5.4.2.
 Pull worm (1) with drive spring off
the crankshaft.
VA
146RA127
1
 If necessary, remove the drive
spring from the worm.
VA
176RA245
 Take out the screws (arrows).
 Disconnect the delivery hose (2)
and suction hose (3).
 Remove the oil pump (1).
Install in the reverse sequence.
VA
146RA128
2
1
3
Make sure the hoses are free from
kinks.
– Lubricate worm with grease
before installation – see 14.
– Drain the oil tank.
– Remove the flywheel – see 7.3.
Dispose oil and fluids properly.
 Take out the fan housing
mounting screws (arrows).
 Remove the fan housing (1).
VA
146RA069
1
 Inspect fan housing gasket (1)
and replace if necessary.
Install in the reverse sequence.
VA
146RA189
1
11.4 Oil Pump 11.5 Fan Housing