Beta RR250 - Check of Pump Unit and Disassembly, Centrifugal Unit and Idler Unit

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ENGINE CHECKS AND ASSEMBLY
3.9.1 Check of pump unit and
disassembly, centrifugal
unit and idler unit
Refer to par. 2.6.1 to disassemble the entire pump
unit.
Check oil seal condition. Replace if worn.
Check centrifugal unit shaft condition. Replace
the entire centrifugal unit if dented in the area in
contact with the oil seal.
Check the device's axial stroke A and ensure it is
between 6.4-6.6mm.
Otherwise replace the unit.
Remove circlip 19 and check condition of the axial
roller cage 16. Replace it in case of anomalies.
Ensure the roller bushes 9 do not jam during op-
eration and check the centrifugal control lever 10
moves correctly.
Also check area A of lever 10 is not worn.
View in centrifugal unit section: stroke A.
Exploded view of centrifugal unit.
Exploded view of bearings and centrifugal control
lever.
Check of centrifugal control lever area A.