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13. Install the top half of the gear case and verify engagement of the gear case groove with the bearing cap lip and the axle seals in the gear case opening. 

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14. Install in pairs and evenly tighten the eight bolts that hold the gear case halves together, starting at the top. 

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15. Torque the three 3/8-inch bolts to 22.5 ± 1.5 lb.-ft. (30.5 ± 2 Nm). 

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16. Torque the five 3/4-inch bolts to 198 ± 13 lb.-ft. (268 ± 18 Nm).

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17. Install the gear case mounting bolts as follows as the preferred method of installation: 

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a. Lubricate the gear case mounting bolt threads and both faces of the washer with a Wabtec approved Moly-based lubricant (84B565364A1) and wait until dry to touch (approximately 5 minutes) before assembly.

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b. Using a reduced shank, 1.00-8 threaded bolt (84B534558P1), and Nord lockwasher (84B534568P1) for each bolt position, install the two remaining bolts and install one Nord lockwasher on each of the bolts.

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c. Using a Norbar torque/angle tool (or equivalent), apply a 425 ± 20 lb.-ft. (576 ± 27 Nm) torque plus a 45° angle to each of the three gear case mounting bolts.

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<b>Note:</b> Ensure that the Nord lockwasher halves are properly aligned. 

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If they are not aligned, the bolt must be removed and re-installed with a new Nord lockwasher.

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d. Using a paint pen, draw a line across the top and sides of each bolt head that extends onto the gear case on both sides of the bolt.

