924G and 924GZ Wheel Loaders Power Train Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

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Illustration 1	g00667833

1. Use tooling (A) and a suitable press to install bearing cup (13).
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   Illustration 2	g00667834

2. Use tooling (A) and a suitable press to install bearing cup (12).
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   Illustration 3	g00667836

3. Use tooling (B) and a suitable press, to install bearing cone (11) to shaft (10).
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   Illustration 4	g00667837

4. Install shaft assembly (10). Install bearing cone (9). Leave slight bearing end play.

5. Clean mating surfaces of the pinion housing and the retainer. Apply a continuous bead of 1U-8846 Sealant, as shown.
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   Illustration 5	g00667852

6. Use tooling (C) to install seal (8) in retainer (7).
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   Illustration 6	g00667840

7. Use six bolts (6) to install retainer (7).
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   Illustration 7	g00667841

8. Place the pinion assembly in a holding fixture. Install yoke assembly (5), shim pack (3), and seal (4).
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   Illustration 8	g00667842

9. Install retainer (2), and bolt (1). Use Table 2 to determine the correct torque specification for bolt (1).
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   Table 2

   Torque Chart
   Sales Model	Serial Prefix	Torque Specification
   924G	6YW, 3DZ, 9SW, AAN, 3PZ, DDA, RBB, WMB	120 ± 20 N·m (89 ± 15 lb ft)
   924GZ	AAB, DFZ, RTA, WGX,	120 ± 20 N·m (89 ± 15 lb ft)
   928G	DJD, WLG	105 ± 20 N·m (77± 15lb ft)
   IT28G	DBT, WAC, EWF	105 ± 20 N·m (77± 15lb ft)
   930G	TWR, TFW	105 ± 20 N·m (77± 15lb ft)

   Note: The following measurements include seal drag.

10. Secure the pinion housing in a holding fixture. Use a torque wrench to check the rolling torque on bolt (1). The rolling torque must be 1.3 N·m to 2 N·m (11.5 lb in to 17.7 lb in) for new bearings. The torque for used bearings should be .9 N·m to 1.3 N·m (7.9 lb in to 11.5 lb in).

11. If the rolling torque exceeds the specification in Step 10, then increase the number of shims in Step 8.

12. If the rolling torque does not meet the specification in Step 10, then reduce the number of shims in Step 8.

End By:

1. Install the differential and bevel gear. Refer to Disassembly and Assembly, "Differential and Bevel Gear - Install".