Owner`s manual

LUBRICATION
3 - 76
En
g
ine 450 - 550
3.9.2. CHANGING BEARINGS AND OIL SEALS
WARNING
before performing any removing/assembling
operation, heat the crankcase with a heat gun in
order to avoid any damage to the housings.
WARNING
Secure the crankcase on the special support
plate, part no. 9100841, before performing the
described operations.
FLYWHEEL-SIDE CRANKCASE
MAIN BEARINGS
REMOVAL
• To remove the crankshaft bearings use the special
tool, part no. 9100884, and a rubber mallet.
REASSEMBLY
• During reassembly, use the special tool, part no.
9100840, and align the joints of both half-bearings with
the tool notch. During assembly, align tool notch with
the bearing oil line.
• Fit half-shells fully home using a rubber mallet.
WARNING
Check that plate adjustable support is fully
home and warm coupling areas of the bearings
properly.
WARNING
To select the proper bearing, see (COUPLING
CLASSES OF MAIN BEARINGS - CONNECTING
ROD.)
GEARBOX PRIMARY SHAFT BEARING
REMOVAL
Remove bearing retaining screws and relevant plate.