Stihl MS 311 Manual

31MS 311, MS 391
– Free off the oil seal in its seat by
tapping it with a suitable tube or a
punch.
: Apply puller (1) 5910 890 4400
with No. 3.1 jaws 0000 893 3706.
– Clamp the puller arms.
– Pull out the oil seal.
The crankshaft stub and oil pump
spur gear must not be damaged.
– Clean the sealing face, b 14
– Lubricate sealing lips of new oil
seal with grease, b 14
1
4903RA064 TG
Installing
: Fit the installing sleeve (1)
1122 893 4600.
– Slip the oil seal, open side (snap
ring) facing outwards, over the
installing sleeve.
– Remove the installing sleeve (1).
: Use press sleeve (1)
1122 893 2405 to install the oil
seal (2).
The seating face must be flat and
free from burrs.
1
4903RA065 TG4903RA276 TG
2
1
: Fit the E-clip (1).
– Wait about one minute, then
rotate the crankshaft several
times.
– Reassemble all other parts in the
reverse sequence.
6.4 Shroud
– Set the Master Control lever to
"
0".
– Push the front hand guard
forwards to engage the chain
brake.
: Take out the screws (arrows).
: Remove the shroud (1).
1
4903RA067 TG4903RA068 TG
1

Stihl MS 311 Specifications

General

Oil tank capacity	0.348 L
Fuel tank capacity	0.6 L
Power source	Gasoline

Weight and Dimensions

Weight	6200 g