BOLT-HEX HEAD 1293182 - Caterpillar

Make sure that the mating surfaces of the upper structure and of the undercarriage frame are thoroughly clean and free of dirt and debris prior to the installation.
Illustration 1 g01024046
Make sure that Tooling (E) in the upper structure is positioned correctly and that the guide bolts are not bent. Note: Two locating dowels are used to align the upper structure with the undercarriage frame. Make sure that these dowels are in position in the undercarriage frame prior to installation.
Apply Tooling (F) in the bores of the swing gear and the bearing that are for the locating dowels in the upper structure.
Apply Tooling (G) on the mating surfaces of the upper structure and the undercarriage frame.
Remove the suitable blocks under the main frame and from the subframe of the upper structure.
Use a lift truck to position the undercarriage frame under the upper structure.
Illustration 2 g00722451Note: There is minimal clearance between pinion shaft (12) and swing gear and bearing (13). Careful alignment of upper structure (11) and the undercarriage frame is required. Make sure that Tooling (E) in the upper structure does not bend during the installation. Bending of the guide bolts indicates that the correct alignment has not been achieved. Keep the upper structure level during the installation.
Lower upper structure (11) slowly onto the undercarriage frame with Tooling (B) and (C) in 6.4 mm (0.25 inch) increments. As the upper structure is being lowered, align Tooling (E) in the upper structure with the correct bolt holes in the undercarriage frame.
Apply Tooling (F) on the threads of some of the bolts that secure the upper structure to the undercarriage frame. Install only the bolts that are easy to access. Tighten the bolts evenly. Remove Tooling (E) from the upper structure.
Illustration 3 g01207683
Connect hose assemblies (7) and (8). Connect fitting (9) to swivel (9). Tighten fitting (9) to a torque of 76 4 N m (56 3 lb ft).
Illustration 4 g00715422
Install cover assemblies (5) and (6) under the undercarriage frame.
Install bolts (4).
Illustration 5 g00519531
Remove Tooling (D) from the machine.
When the main hydraulic pump has been serviced or the hydraulic oil has been replaced, the air in the hydraulic system must be purged. Do not start the engine until the main hydraulic pump has been filled with oil.Operating the hydraulic pump without proper lubrication will damage the pump and other hydraulic components.
Fill the hydraulic oil tank. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
Illustration 6 g00722448
Install right-hand boom cylinder (3). Refer to Disassembly and Assembly, "Boom Cylinder - Install" for correct procedure.
Illustration 7 g00519669
Remove Tooling (C) that is under the rear of the machine.
Illustration 8 g00365081
Remove Tooling (B) that is under the stick.
Illustration 9 g00722444
Apply Tooling (F) on the threads of remaining bolts (1) that secure the upper structure to the undercarriage frame. Install the remainder of bolts (1) and tighten the bolts. The machine can be rotated to the left or to the right to make access to bolts (1) easier. Use Tooling (A) to tighten all bolts (1) to a torque of 250