SEAL KIT- 8T1411 - Caterpillar

Be sure floor jack (13) stays in position under the front of the rear frame when the rear frame is moved.25. Remove tooling (B) and the blocks from the rear tires on the rear frame. Carefully pull rear frame (48) from front frame (47) with a lift truck and hoist.
Lower Hitch26. Remove spacer (41), bolts (38), and two bearing caps (42) and (35) from the lower hitch on the rear frame.27. Carefully remove shims (37) from the lower hitch of the rear frame.28. Remove lip-type seals (39) and (43) from caps (42) and (35). 29. Put tooling (F) in position as shown, and remove bearing (36) from the lower hitch on the rear frame.
Upper Hitch30. Remove the bolts that hold cap (23). In the upper hitch on the front frame, remove cap (23), shims (29), and cap (28).31. Remove lip-type seals (22) and (25) from caps (23) and (28). 32. Use tooling (G) to remove bearing (24) from the upper hitch on the front frame.33. Use tooling (G) to remove bearing (26) from the upper hitch on the rear frame.Connect Loader Main Frames
Upper Hitch1. Coat the bores of the upper hitch group with 5P0960 Multipurpose Grease.2. Install bearing (26) in the upper hitch of the rear frame with tooling (G). Install bearing (26) so that the bearing face is even with the inside surface on the upper hitch of the rear frame as shown.3. Lubricate the sealing lip of seals (22) and (25) with 5P0960 Multipurpose Grease. Install lip-type seals (22) and (25) in caps (23) and (28) with tooling (J). Install both seals with the lips of the seals facing upward as shown.4. Install cap (28) in the upper hitch. Use three of the bolts that originally hold caps (23) and (28) in position to hold cap (28). Equally space these bolts. Lower the temperature of one of the bearing cups for bearing cones (24) to a temperature of -75 5°C (-103 9°F). Install the lower cup. Drive the cup down to ensure contact with cap (28).5. Lubricate both bearing cones (24) with clean oil, and install them in the upper hitch as shown. Lower the temperature of the upper cup to a temperature of -75 5°C (-103 9°F). Install the upper bearing cup. Drive the cup down to ensure light contact with bearing cones (24).6. Remove the three bolts that are holding cap (28) in position. Install the original amount of shims (29) and cap (23). Reinstall the three bolts to hold caps (23) and (28) in position. Equally space these bolts. Install a torquing bolt assembly on the bearings, and tighten it.7. Install a torque wrench on the torquing bolt and record the torque value necessary to rotate bearing cones (24). If the torque is within a range of 2.3 to 13.6 N m (1.70 to 10.06 lb ft), install the remaining bolts in cap (23) and tighten them. If the torque is less than 2.3 N m (1.70 lb