TUBE AS 9C2424 - Caterpillar

Illustration 22 g00515535
Apply clean hydraulic oil on nine piston assemblies (20). Install the piston assemblies in the piston assembly's original bores in plate (21). Install the plate with the piston assemblies in the original bores in barrel (22).
Illustration 23 g00515533Note: Do not allow the barrel assembly to fall apart when the barrel assembly is installed in the body of the swing motor.
Place the swing motor on the swing motor's side. Install barrel assembly (18) in body (19).
Illustration 24 g00515522Note: Make sure that the four tooth cut locations of each friction plate are in alignment. Also, the four tooth cut locations of each separator plate must be in alignment in the body of the swing motor.
Apply clean hydraulic oil on four separator plates and three friction plates (17). Install plates (17) in alternating order in body (19). Begin with a separator plate, and end with a separator plate.
Illustration 25 g00515494
Install piston (16) in the body of the swing motor in the piston's original position. Threaded holes (X) can be used as a guide during installation. If the piston is difficult to install because of O-ring seal resistance, a soft faced hammer can be used as an aid in installation.
Illustration 26 g00516977
Install 18 springs (14) in the piston.
Illustration 27 g00517524
Install two pins (13) and bearing (12) in head (10).
Install O-ring seal (11) on head (10).
Illustration 28 g00516981
Apply a thin coat of 5P-0960 Molybdenum Grease on the face of plate (15) that contacts the head. The grease will hold the plate to the head. Install the plate on the head in the plate's original position, as shown.
Illustration 29 g00515433
Place head (10) in the head's original position on the body. Install four socket head bolts (9) that secure the head. Tighten the socket head bolts to a torque of 430 43 N m (315 32 lb ft).
Illustration 30 g00515430
Illustration 31 g00515406Note: Be sure to install each makeup valve (4) in the makeup valve's original position in the head.
Install two makeup valves (4) in the head. Install O-ring seals (8) on plugs (5), springs (6) and plugs (7). Tighten plugs (7) to a torque of 220 25 N m (160 18 lb ft).
Illustration 32 g00515401
Illustration 33 g00515399Note: Be sure to install each relief valve assembly (1) in the relief valve's original position in the head.
Install backup ring (2) and O-ring seal (3) on each relief valve assembly (1), as shown. Refer to Illustration 32.
Install relief valve assemblies (1) in the head. Tighten the relief valve assemblies to a torque of 180 12 N m (135 9 lb ft).
To avoid system damage, make sure that the hydraulic motor is properly filled with hydraulic oil before start-up.
Fill the swing drive with oil to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity and Operation and Maintenance Manual, "Refill Capacities" for the correct amount. Refer to Operation and Maintenance Manual, "Swing Drive Oil Level - Check" for the proper filling procedure. End By:
Install the swing motor. Refer to Disassembly and Assembly, "Swing Motor- Install"