KYMCO MXU 300 - SECONDARY GEAR SHIMS (MXU 300)

10.FINAL REDUCTION/
TRANSMISSION SYSTEM
10-39
MXU 300/250
SECONDARY GEAR SHIMS
(MXU 300)
Remove the for bolts and secondary drive
bevel gear cover.
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)
Bolts
Secondary Drive Bevel Gear Cove
r
Drive Bevel Gear Driven Bevel Gea
r
Driven Bevel Gear Shaf
t
● 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.
＊