RING G. 4F9869 - Caterpillar

Illustration 6 g00275710
Dimensions for milling the pad for the thrust stop pin on the differential bearing cap. (N) 27 degrees (P) 15.63 mm (.615 inch) (Q) 91.5 mm (3.60 inch) (R) 201.6 mm (7.94 inch) (S) 154.13 mm (6.068 inch)
Illustration 7 g00275713
(T) 25 mm (1 inch) (U) 50.0 mm (1.97 inch) (V) 18.0 mm (.71 inch)
Use the dimensions given in Illustrations 6 and 7, and the face on the FT-2590 Alignment Fixture , to determine the dimensions for milling the surface for the differential thrust stop pin on the differential bearing cap.Note: Mill the pad 18.0 mm (.71 inch) toward the top of the axle housing.
Illustration 8 g00275637
Differential carrier bearing cap with a machined face for the differential thrust stop pin.Note: It may be desirable to install the differential bearing adjusting nut in the differential carrier to provide added stability during the milling operation.
Illustration 9 g00275639
Locating the centerdrill on the Alignment Fixture.Note: The fixture that is shown in Illustration 9 may differ somewhat from FT-2590 Alignment Fixture .
Remove the modified differential bearing cap from the differential carrier. Locate a centerdrill off the FT-2590 Alignment Fixture . The location of the centerdrill will be used to determine the dimensions for machining and drilling holes in the axle housing.
After the face for the differential thrust stop pin has been machined on the differential bearing cap, install the axle housing on the differential carrier.
Illustration 10 g00275643
Dimensions for machining the axle housing. (W) 323.64 mm (12.742 inch) (Y) 154.13 mm (6.068 inch) (Z) 393.65 mm (15.498 inch) (AA) 365 mm (14.4 inch) (BB) 201.63 mm (7.938 inch) (CC) 172.98 mm (6.810 inch) (DD) 27 degrees (EE) 13.0 mm (.51 inch) (FF) 25.53 mm (1.005 inch) (GG) 15.63 mm (.615 inch) (HH) 192.0 mm (7.56 inch) (JJ) 91.5 mm (3.60 inch) (KK) 177.9 mm (7.00 inch) (LL) 60.5 mm (2.38 inch) (MM) 30.23 mm (1.190 inch) (NN) 30.00 0.05 mm (1.181 .002 inch) diameter. (PP) 11.0 mm (.43 inch) diameter, 35 mm (1.4 inch) deep, 1/2-13-2B tap, 25 mm (1.0 inch) deep, 2 holes. (QQ) 3.0 mm (.12 inch) chamfer
Illustration 11 g00275654
Axle housing after the machining process.
Machine the face for the pin cover on the axle housing using the dimensions given in Illustration 10.
Machine the hole for the thrust stop pin in the axle housing as shown in Illustration 10. Chamfer the hole for the fabricated thrust stop pin to prevent damage to the seal during installation.
Drill and tap the holes in the axle housing for the thrust stop pin cover.Note: It may be desirable to clean the surface for the panhard rod mounting bracket while the axle housing is on the milling machine.
Illustration 12 g00275734
Dimensions for relocating the lock on the differential bearing cap. (TT) 7.94 mm (.313 inch) diameter. (UU) 28 mm (1.1 inch) (VV) 14.0 mm (.55 inch) (WW) 1.0 mm (.04 inch) x 45 degrees. (XX) 88 mm (3.5 inch) (YY) 60 degrees
Modify the differential