DK00027.fm
REPAIR MANUAL
BRP-Powertrain
Effectivity: 125 MAX/125 Junior MAX/125 Mini
MAX/125 Micro MAX
Edition 2 / Rev. 0
Chapter 5
Page 27
December 01/2010
4.2) Inspection of balance shaft drive
General NOTES: If one of the balance wheels has cracks or if backlash of
the balance wheels at the spline can be seen, both bal-
ance wheels must be replaced.
Instructions See Figure 17.
4.2.1) Inspection of balance shaft
General NOTES: If one of the wear limits M10 or M11 is reached, the
balance shaft must be replaced.
Instructions See Figure 17.
Step Procedure
1 Check balance gears (1) for cracks.
2 Place balance gears on the spline, the balance shaft or crankshaft and inspect
balance gears for backlash at the spline.
3 Check outer teeth of the two balance gears for signs of wear. If the teeth of one
of the balance gears shows signs of wear, both balance gears must be re-
placed.
4 Inspect condition of O-ring (2).
NOTES: The balance gears (1) and the O-ring (2) should be replaced
at least every 50 operating hours.
Step Procedure
1 Inspect the groove (3) for the locking ring for damage and wear.
2 Check the diameter of the bearing seats M10 and M11 for wear.
Description Code New dimension Wear limit
Measured
value
Bearing seat M10 14.96 mm - 14.99 mm 14.94 mm
Bearing seat M11 24.97 mm - 24.99 mm 24.94 mm
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