Bevel Gear Tooth Contact Inspection

Bevel Gear Tooth Contact Inspection

1. After cleaning tooth surface of bevel gear (1), paint them with gear marking compound evenly by using brush or sponge etc.

NOTE: When applying red lead paste to teeth, be sure to paint tooth surfaces uniformly. The paste must not be too dry or too fluid.





2. Install transfer output retainer assembly.
3. Turn transfer output flange clockwise and counterclockwise repeatedly, and remove transfer output retainer assembly and bevel gear shims from transfer assembly.
4. Bring painted part up and check contact pattern referring to the following chart. If contact pattern is not normal, readjust or replace as necessary according to instruction in chart.

NOTE:
^ Be careful not to turn bevel gear more than one full revolution, for it will hinder accurate check.
^ If bevel gear back lash and bevel pinion shims are adjusted properly, correct tooth contact should be provided.
If correct tooth contact is not provided even when they are adjusted properly, however, there may be an abnormal condition in worn tooth, transfer case or retainer. Check each component and replace as necessary.

Gear tooth contact table