mxu 300 r Manuale-dofficina : Pagina 193

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Pagina 192

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Pagina 194

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Pagina 195

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          10.FINAL REDUCTION/
   TRANSMISSION SYSTEM                                                       MXU 250R/300R

                                                   Secondary Drive Bevel Gear Cover
 SECONDARY GEAR SHIMS
 (MXU 300R)
 Remove three bolts and secondary drive
 bevel gear cover.




                                                                           Bolts




                                                   Drive Bevel Gear           Driven Bevel Gear
 Set a dial gauge on the driven bevel gear as
 shown.

 Measure the backlash by turning the driven
 bevel gear shaft in each direction, reading the
 total backlash on the dial gauge. If the
 backlash is not within specification, the shim
 must be changed and the backlash should be
 rechecked until correct. Refer to the chart (a)
 at the page 10-41 for appropriate shim
 thickness.

 Bevel gear backlash
 Standard: 0.03 - 0.15 mm (0.001 ­ 0.006 in)

  If    the backlash is too small (under
    0.03 mm, 0.001 in), replace the driven
    bevel gear side spacer with a thinner
    shim.
    If the backlash is too great (over 0.15
    mm, 0.006 in), replace the driven
    bevel gear side spacer with a thicker
    shim.
                                                                           Driven Bevel Gear Shaft




10-39