Husqvarna 545RX Workshop Manual page 56

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54
Crankshaft and crankcase
Inspect the small end of the connecting
rod.
Check the crank bearing.
Inspect the crankshaft bearing and sealing
rings.
Assembly
Mount the bearings in the crankcase
halves.
Inspect the small end of the connecting
rod.
If seizure marks or discolouration are
found in the bearing track the crankshaft
must be replaced.
Check the crank bearing. The connecting
rod shall not have any radial play (up and
down).
It should, however, have axial play, in or-
der to ensure good lubrication of the crank
bearing among other things.
Check for wear in the crankshaft bearing
and sealing rings.
Clean the bearings and rotate the outer
ring. If movement is "jerky" the bearing
track is probably damaged. If so, replace
the bearing.
Also check that the gap is not too great.
Inspect the sealing rings. The seal edge
shall be sharp or slightly ground.
Assembly
Heat the crankcase halves to approx.
150°C using a hot air gun and position the
bearings.
Make sure they go right down into the
bearing seats.