FLOOR MAT 1986998 - Caterpillar

Allow the bearing cage to cool and remove tape from the threads before machining.
Illustration 11 g01288733
Jaws have been bored to correct size.
Make sure that jaws of the chuck are bored correctly for the outside diameter of the bearing cage. Machining the jaws of the lathe to the same diameter as the bearing cage will cause equal pressure to be exerted on the outside diameter.
Illustration 12 g01287810
The outside diameter is being checked with a dial indicator.
Illustration 13 g01287953
The face is being checked with a dial indicator.
Place the bearing cage in a lathe. Zero set a dial indicator on the outside diameter and the end face. Rotate one revolution to measure total indicator reading. The maximum for the total indicator reading is 0.127 mm (0.0050 inch).
Illustration 14 g01288745
Boring bar is installed on the lathe and ready to make cleanup cut.
Use the boring bar and make a cleanup cut.
Illustration 15 g01288755
Machine the bearing cage to the inside diameter of a new bearing cage which is specified in Table 4.
Note: Care must be taken to control the depth of the boring bar. Do not damage the threads at the bottom of the cut.
Illustration 16 g01288925
Make sure that the depth of the cut does not damage the threads.
Use inside micrometers and measure the diameter of the bore. Machine the bore to the inside diameter of a new bearing cage that is given in Table 4.
Illustration 17 g01288934
The edge of the bearing cage should be chamfered and the edge of the bearing cage should be deburred.
Illustration 18 g01314756
The dimensions for the chamfer that are shown above are listed in Table 4.
(1) Depth of the chamfer
(2) Angle of the chamfer and location of the chamfer
Use the boring bar or the tool for chamfering to cut a chamfer on the bearing cage. Deburr the bearing cage and remove the bearing cage from the lathe. Dimensions for the chamfer are shown in Illustration 1 and given in Table 4.