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Desarmado y ArmadoIT38G Integrated Toolcarrier and 938G Wheel Loader Power Train
Differential Pinion - Assemble
SMCS - 3254-016-WH
Assembly Procedure
1. Lower the temperature of bearing cup (11) . Install bearing cup (11) in the pinion housing, asshown.
Nmero de medio -SENR6787-07 Fecha de publicacin -01/08/2007 Fecha de actualizacin -06/08/2007
i04704789
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-6689 Socket 1
B 138-7573 Link Bracket 2
C
8B-7548 Puller 1
8T-0664 Bolt 1
7X-0851 Nut 1
D 1P-0520 Driver Group 1
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Illustration 1 g00335318
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Note: Reset the bearing cup with a suitable driver after the mating parts have reached a uniformtemperature.
2. Install O-ring (12) on the pinion housing.
3. Lower the temperature of bearing cup (10) . Install bearing cup (10) in the pinion housing, asshown.
4. Raise the temperature of bearing cone (9) to a maximum temperature of 135C (275F). Installbearing cone (9) on pinion shaft (4) .
Note: Reset the bearing cone with a suitable driver after the mating parts have reached a uniformtemperature.
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Illustration 2 g00335319
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Illustration 3 g00335320
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5. Attach Tooling (B) and a suitable lifting device to the pinion housing. Lower the pinion housingover the pinion shaft.
6. Use SAE 30W gear oil to lubricate the bearing.
7. Raise the temperature of bearing cone (8) to a maximum temperature of 135C (275F). Installbearing cone (8) on pinion shaft (4) .
Note: Do not reset the bearing cone at this time.
8. Use SAE 30W gear oil to lubricate the bearing.
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Illustration 4 g00335321
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Illustration 5 g00335322
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9. Install washer (7) on the pinion shaft.
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Illustration 6 g00334767
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Illustration 7 g00335323
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10. Install nut (6) on the pinion shaft. Use Tooling (A) to tighten nut (6) in order to load the bearings.
11. Attach Tooling (C) to the yoke. Install the yoke and Tooling (C) on the pinion shaft.
12. Use a torque wrench and Tooling (C) to slowly turn the pinion shaft. Check the rolling torque.
For new bearings, the rolling torque is 0.9 to 1.8 Nm (8 to 16 lb in). If the existing bearings are
used, limit the rolling torque to half of the specification.
Note: If the rolling torque exceeds the specification, back off the shaft by a 1/8 turn. Reseat thebearings and repeat Steps 11 and 12.
Illustration 8 g00334765
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Illustration 9 g00335324
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Illustration 10 g00334764
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Illustration 11 g00335136
Completed Stake
(E) The spherical radius of the tool for peening must be 7.5 to 8.0 mm (0.295 to 0.315 inch).
(F) The acceptable angle of the tool for peening is 20 10 degrees.
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Note: Before you stake the nut, make sure that the pinion shaft has zero end play.
13. When the rolling torque is correct, stake nut (6) by peening the collar in slot (5) in the pinionshaft. See Illustration 11 and the caption for the correct dimensions.
14. Use Tooling (D) to install lip seal (3) in retainer (2) . Make sure that the sealing lip is facinginward.
(G) The minimum length of the crimp is 4.7 mm (0.185 inch).
(H) The minimum depth of the crimp is 2.5 mm (0.098 inch).
(J) Top view
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Illustration 12 g00335325
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Illustration 13 g00334761
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15. Put retainer (2) in position on the pinion housing. Install the washers and six bolts (1) .
16. Use SAE 30W gear oil to lubricate lip seal (3) .
End By: Install the differential and the bevel gear. Refer to Disassembly and Assembly, "Differentialand Bevel Gear - Install".
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Illustration 14 g00334760
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Mon Apr 1 21:40:45 EST 2013
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