Stihl MS 440 Service Manual

29MS 440, MS 440 C
: Use the press sleeve (1)
1128 890 3900 to install the oil
seal.
The seating face must be flat and
free from burrs.
– Wait about one minute, then
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rotate the crankshaft several
times.
– Install the generator (if fitted)
and tighten down the screws
firmly – b 3.5
– Fit the flywheel – b 7.3.
Clutch side
– Remove the oil pump – b 11.3.1
: Remove the spacer bush (1).
– Free off the oil seal in its seat by
tapping it with a suitable tube or a
punch.
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: Apply puller (1) 5910 890 4400
with No. 3.1 jaws 0000 893 3706.
– Clamp the puller arms.
– Pull out the oil seal.
Take care not to damage the
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crankshaft stub.
– Cleaning sealing face with
standard solvent-based
degreasant containing no
chlorinated or halogenated
hydrocarbons – b 16.
– Lubricate sealing lip of oil seal
with grease – b 16.
– Thinly coat the outside of the oil
seal with sealant – b 16.
: Push the installing sleeve (1)
1122 893 4600 on to the
crankshaft stub.
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– Slip the oil seal, open side facing
the crankcase, over the
crankshaft stub.
: Use press sleeve (1)
1118 893 2401 to install the oil
seal.
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– Remove the installing sleeve.
– Wait about one minute, then
rotate the crankshaft several
times.
: Reassemble all other parts in the
reverse sequence.
– Grease the outside of the spacer
bush – b 16.
: Fit the spacer bush.
– Install the oil pump – b 11.3.1
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Stihl MS 440 Specifications

General

Displacement	70.7 cc
Chain Pitch	3/8"
Ignition system	Electronic
Starter	Recoil starter
Vibration reduction	Anti-vibration system
Weight (without bar and chain)	6.4 kg
Fuel tank volume	0.73 L
Oil Capacity	0.36 L
Guide Bar Length	40-63 cm
Guide Bar Length (recommended)	40-71 cm (16-28 in)