Online version - not for reprint
37MS 270, MS 280
Apply puller (1) 0000 890 4400
with No. 3.1 jaws.
– Clamp the puller arms.
Pull out the oil seal (2).
Take care not to damage the
VA
146RA049
2
1
crankshaft stub.
– Clean sealing face with STIHL
cleaner – see 14.
– Lubricate sealing lip of oil seal
with grease – see 14.
– Thinly coat the outside diameter
of the oil seal with sealant
– see 14.
Fit the installing sleeve (1)
1118 893 4602 on the crankshaft.
VA
146RA050
1
– Slip the oil seal, open side facing
the crankcase, over the
crankshaft stub.
Use press sleeve (1)
1118 893 2405 to install the oil
seal.
VA
146RA051
1
– Remove the installing sleeve.
– Wait about one minute, then
rotate the crankshaft several
times.
– Install retaining ring in crankshaft
groove.
If the retaining ring is fatigued, fit a
new one.
– Install the oil pump – see 11.4.
Reassemble in the reverse
sequence.
Release twist lock (1) and
remove the carburetor box
cover (2).
VA
146RA002
2
1
– Pull off the spark plug boot.
Take out the shroud mounting
screws (arrows).
– Remove the shroud upwards.
Reassemble in the reverse
VA
146RA070
sequence.
6.4 Shroud