ELBOW 2U0837 - Caterpillar

Reference: Refer to Undercarriage Reconditioning Bulletin, SEBF8568, "Hydraulic Excavator Roller Disassemble and Assembly Procedures" for the disassembly and assembly procedures for the track carrier roller.
Thoroughly clean all of the parts of the track carrier roller prior to assembly.Note: Do not reuse bearings (12) and (13). Use new parts for replacement.
Illustration 1 g00367312
Note: Bearing (13) is a straight bearing.
Lower the temperature of bearing (13). Use Tool (A) and a press to install bearing (13) in the inside bore of the carrier roller. Install the bearing until the bearing is even with the shaft counterbore in the carrier roller.
Illustration 2 g00489523
Note: Bearing (12) has a flange.
Lower the temperature of bearing (12). Use Tool (A) and a press to install bearing (12) in the outside bore of the carrier roller. The outside bore can be identified by three threaded holes "H" in the track carrier roller. Install the bearing until the flange on the bearing contacts the counterbore in the track carrier roller.
Illustration 3 g00489522
Check the condition of the O-ring seal that is used in collar (11). If the O-ring seal is damaged, use a new part for replacement. Install the O-ring seal in the collar. Apply clean oil on the O-ring seal.
Use a press to install collar (11) on shaft (8). Install collar (11) until dimension "X" is 132.4 0.20 mm (5.21 .008 inch).
Use the following procedure to determine shaft end play.Note: Do not install the Duo-Cone seals in the track carrier roller or collar (11) at this time.
Install shaft assembly (8) in the track carrier roller without Duo-Cone seals.
Install retainer (7) and socket head bolts (6) on the end of shaft assembly (8) .
Use Tool (C) to measure the end play of shaft assembly (8). The end play of the shaft assembly must be 0.25 mm (.010 inch) to 1.25 mm (.049 inch). Bearing (12) controls the amount of shaft end play.
Disassemble the track carrier roller, but do not remove collar (11) from shaft (8) .Note: The rubber seals and all surfaces that make contact with the seals must be clean and dry. After installation of the seals, apply clean SAE 30 oil on the contact surfaces of the metal seals. For more information concerning the assembly and installation of Conventional Duo-Cone Seals, refer to Disassembly and Assembly, "Duo-Cone Conventional Seals - Install" in this manual.
Illustration 4 g00489499
Install Duo-Cone seal (10) in collar (11) with Tool (B) .
Illustration 5 g00489497
Install Duo-Cone seal (9) in the track carrier roller on the side without the three threaded holes with Tool (B) .
Illustration 6 g00489493
Carefully install shaft assembly (8) in the track carrier roller. Install retainer (7) and two socket head bolts (6) .
Illustration 7 g00489486
Install washer (5), as shown.
Illustration 8 g00489481
Check the condition of O-ring seal (4) that is used on cover (3). If the O-ring seal is damaged, use a new part for replacement. Apply clean oil on O-ring seal (4). Install the O-ring seal on cover (3) .
Illustration 9 g00489477
Install cover (3) on the track carrier roller and three socket head bolts (1) that secure the