PIAGGIO MP3 530 hpe Service Station Manual page 207

Machine Translated by Google
Motor
Checking the crankshaft bearings
- To ensure good lubrication of the crankshaft bearings
To achieve this, both the lubricating pressure (4
bar) must be optimally adjusted and a sufficient oil
supply must be guaranteed. In that together
It is also important that the crankshaft bearings are
installed correctly and no
Throttle lubrication channels.
- The crankshaft bearings consist of 2 half shells
len, of which 1 is solid and 1 with holes and
Grooves for lubrication.
- The massive half bearing must absorb and contain the pressure resulting from combustion
therefore opposite the cylinder.
- To ensure that the lubrication channels are not throttled, the mating surface of the two half bearings must be aligned
exactly perpendicular to the cylinder axis (see illustration).
- The cross section of the lubrication channels is also related to the installation depth of the crankshaft bearings
on the plane to limit the axial play of the crankshaft.
ANNOTATION
SO THAT THE CRANKSHAFT BEARINGS MAINTAIN THIS INSTALLATION POSITION, THIS IS DONE
INSTALLATION BY PRESSING INTO THE CAST IRON RINGS IN BOTH HALF OF THE HOUSING
ARE ALLOWED.
- The diameter of the crankshaft bearings
three directions shown in the figure
check.
- Also the diameter of the other crank
Check shaft bearing half. See illustration.
ANNOTATION
DO NOT MATCH THE DIAMETER ON THE MATCHING SURFACES OF THE
MEASURE 2 BEARING HALFS AS THESE ARE FOR THE BETTER
ARE SANDED FOR INSTALLATION.
- Before assembling, check whether there is clearance between the bearing bushes of the housing and the
Crankshaft are within the values specified in the "Technical Data" section.
- The standard diameter of the crankshaft bearings is depending on the installation category selected
different.
- The bearing seats of the crankshaft bearings are divided into 3 categories and the crankshaft into 2 categories
Splits.
- The bearing bushes are divided into 4 categories depending on their thickness (see table in Fig
section "Technical data")..
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MP3 530 hpe