Bevel gear and differential Checking the settings To check the contact print of the bevel gear teeth, stain the ring gear with minium and detect the contact. The contact print must always be examined on the teeth of the ring gear and on 2 sides. Before checking, fit the ring gear with Loctite (243) and tighten the screws to 10,5 daN.m (20.29 SI)-9,5 daN.m (20.25 SI).
Contact correct (A) If the bevel gear is set correctly, the contact of the teeth surfaces will be regular.
Excessive contact at the tip of the tooth (B) Move the pinion closer to the ring gear and then move the ring gear away from the pinion to adjust the backlash.
Excessive contact at the base of the tooth (C)
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Move the pinion away from the ring gear and then move the ring gear closer to the pinion to adjust the backlash.
Fig. 79
A
B
Correction actions D. Move the pinion to modify contact type (B). E. Move the pinion to modify contact type (C). If (D) or (E) proves to be necessary, reset the preloads and the meshing backlash.
C
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Fig. 80
E
D
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D2.54
Arion 640-510 – 12.2008 – GB
Fig. 81
