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4. Turn the driveshaft 6 times by pulling the driveshaft to the top side. This means for stable
thrust taper roller bearing contact.
5. Attach backlash measuring tool clamp to the driveshaft.
6. Measure the backlash 4 points by each 90 degree.
Proper backlash A-B : 0.24-0.48mm
Proper backlash B-C : 0.24-0.48mm
Shim variation A gear 0.10/0.15
B gear 0.10/0.15/0.30
C gear 0.10/0.15
*When you measure the backlash, better to settle lower side as shown.
The reason is for stable thrust taper roller bearing contact.
In addition, when you measure the backlash, hold the driveshaft by your hand closely to the
lower case. The reason is the drive shaft shakes caused by hand and a correct measurement
is not possible.
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