ENGINE AR 9Y2444 - Caterpillar

11. Put location marks on the differential case halves. Tilt the differential assembly to allow access to Allen head bolts (9). Remove bolts (9) and plates (10). 12. Separate the differential case halves. Remove gears (11) and the washers.13. Remove the differential case halves from the carrier. 14. Remove lock (13), nut (12) and the washer from the pinion. 15. Put the differential carrier in position in a press.16. Press the pinion from the yoke. Be careful not to let the pinion drop to the floor.17. Remove yoke (14). 18. Remove seal (15) and bearing (16). 19. Remove bearing races (17) from the carrier. 20. Remove collapsible spacer (18) from the pinion assembly. 21. Use tool (H) and a press to remove bearing (19) from the pinion.Assemble Differential (Front) (Open Gear)
The pinion depth procedure is only necessary if the pinion and bevel gear set or carrier is to be replaced.1. Measure the bore radius of the differential bearing supports. This will be Dimension A, which is 44.96 mm (1.770 in).2. Drill two 3/16" holes in a piece of 25 mm (1 in) diameter bar stock that is 254 mm (10 in) long. Drill the two holes (one on each end) 76 mm (3 in) away from each end of the bar stock.3. Put tool (A) in the bar stock. Put tool (A) along with the bar stock in position in the differential carrier as shown. Measure from the top of the bar stock to the bearing race seat surface. Add this dimension to Dimension A. The combination of dimensions will be Dimension B, which is 154.75 mm (6.093 in).4. Measure the diameter of the bar stock. Subtract this dimension from Dimension B. This dimension will be Dimension C, which is 129.35 mm (5.094 in). 5. Measure the thickness of the bearing and race as an assembled unit. Subtract this dimension from Dimension C. This dimension will be Dimension D which is 99.07 mm (3.901 in).6. Dimension D is the distance from the centerline of the axles to the bearing locating shoulder of the pinion. Stamped on the end of the pinion is the nominal dimension, [97.92 mm (3.855 in)]. Etched on the end of the pinion is the deviation from the nominal dimension [-0.1 mm (-.004 in)]. Also etched on the end of the pinion is an identification number for the pinion and bevel gear set.7. Add the deviation to the nominal dimension. This will be the actual pinion dimension, [97.82 mm (3.851 in)]. Example: 97.92 mm + (-0.1 mm) = 97.82 mm [3.855 in + (-.004 in) = 3.851 in].8. From Dimension D subtract the actual pinion dimension. This will be 1.27 mm (.05 in) which is the shim thickness required. 9. Install required shim (2). Lower the temperature of bearing races (1), and install them in the differential carrier. 10. Heat bearing (3) to a temperature of 135°C (275°F), and install it on the pinion. 11. Put the pinion in position in the differential, and install