44 – English
Crankcase and crankshaft on
350/345/340 – dismantling
1
Remove the following:
guide bar and chain
clutch cover
cylinder cover
starter assembly and cable guide page 20
ignition system page 23
centrifugal clutch page 26
oil pump page 28
carburettor page 31
silencer page 14
piston and cylinder page 40
fuel tank page 38
NOTE!
Take care to prevent dirt or foreign parti-
cles getting into the bearings.
2
Undo and remove the four bolts from the bearing
housing on the underside of the crankcase. Re-
move the earth terminal.
3
Lift out the crankshaft.
4
Pull off the bearings, using puller 504 90 90-02 if
necessary. The bearings are a slip-fit.
Cleaning and inspection
Clean all the components and scrape off any
traces of old gasket from the mating faces of the
crankcase and bearing housing.
Check that:
• There is no radial play in the big end bearing.
• The big end bearing has no score marks or
discoloration at the sides.
• The little end bearing surface is not scored or
discoloured.
• There is no play or noise in the crankshaft
bearings.
• The sealing surfaces of the crankcase seals on
the crankshaft are not worn and the rubber has
not hardened.
• That the crankcase does not show signs of
cracking.
• See also Husqvarna’s Analysis guide for faults
and causes.
Repair instructions
V-bok 340-351 Eng 99-04-15, 18.4644
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