PIPE AS 1991600 - Caterpillar

Table 1
Required parts
Qty New Part Number Description Former Part Number
16 8B-5144 Bolt -
2 8V-1540 Spider and Bearing Gp 172-5235 Ensure that the universal joints are installed correctly and bolts are tightened to specification. Follow these steps to ensure proper installation.
Illustration 1 g06136252
Example of universal joint locations
(A) Universal Joint
Inspect the universal joints and mating yokes for damage to the key, keyway, threaded holes, and pilot diameters.Note: If damage is present in any of the areas, replace the universal joint or yoke accordingly.
Clean the mating surface of the yoke assembly, including the threaded holes and universal joint assembly. Ensure that the yoke assembly is free of wax, dirt, debris, paint, and grease.
Clean the mating surface of the slip joint. Ensure that the slip joint is free of wax, dirt, debris, paint, and grease. Repeat for opposite side.
Make sure that mating yokes are aligned and in phase.
Ensure that the universal joints are fully seated prior to tightening the bolts. There are two methods:
Use a suitable rubber or wood hammer to seat the universal joints in the yoke.
Use designated run-down bolts to completely seat the universal joints in the yoke.
Torque the designated (run-down) bolts in a sequential alternating X pattern.
Remove the designated (run-down) bolts and replace with new 8B-5144 Bolts.Note: Ensure that the universal joints are fully seated prior to tightening the bolts.
Insert new 8B-5144 Bolts and torque to 215 40 N m (159 30 lb ft) in a sequential alternating X pattern.
Static check 8B-5144 Bolts and ensure that the bolts are tightened to a minimum of 175 N m (129 lb ft) to maximum of 255 N m (188 lb ft).
Perform a static check on the 8B-5144 Bolts 250 hours after the universal joints and drive shaft has been installed.