105
Repair instructions
30. Check the bearing race. Replace as necessary,
using a knife puller. Clean and check all parts for
wear.
Assembly
Shimming the front bearing
1. Find the “G”-marking on the parting plane of the
lower gear housing.
Only the decimals of the “G”-marking are stamped into
the gear housing. In this case, the “G”-stamping is 85.
The nominal value of the “G”-measurement is
60.00 mm. Add 60.00 and 0.85, which yields 60.85.
NOTE! When calculating the shim thickness for the
lower unit gears, remember:
The lower unit gear housing nominal dimension
has two values:
If the stamped number is 50 or more, use the lower
nominal value: 60.00 mm.
If the stamped number is 49 or less, use the higher
nominal value: 61.00 mm.
Example:
Stamping is 50 or more:
“G”-stamping: 85 = 00.85 mm
Use Nominal Dimension = +60.00 mm
“G”-measurement 60.85 mm
Stamping 49 or less:
“G”-stamping: 02 = 00.02 mm
Use Nominal Dimension = +61.00 mm
“G”-measurement 61.02 mm
2. The nominal height of the bearing is 20.85 mm
(0.821”).
NOTE! The front and rear roller bearings are different
and must not be mixed.
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