LINES GP-LUBE OIL 1407622 - Caterpillar

23. Check center pin (20) for scratches or pitting at areas (Y). Replace the center pin if necessary.Assemble Motors (Swing And Track)
There are several sizes of the bent axis type motors. Only one size of motor is shown here, however, the disassembly and assembly remains the same for all sizes.It is necessary to see two tool charts for a complete listing. Special tools for a particular size of motor are identified in the first four tool charts by motor type. Special tools that are common for all motors are listed in the last tool chart. 1. Measure the drive shaft and bearing assembly to determine the thickness of the shim that will be used under the shaft seal cover. Refer to the Testing And Adjusting Manual for the proper measuring procedure. The Testing And Adjusting Manual Form Nos. are SENR3109 for the 215B and SENR3110 for the 225 Excavator.2. Measure the center pin, spring collar, cylinder block, and control plate to determine the proper size spring collar that should be used for assembly. Refer to the Testing And Adjusting Manual for the proper measuring procedure. The Testing And Adjusting Manual Form Nos. are SENR3109 for the 215B and SENR3110 for the 225 Excavator. 3. Put drive shaft and bearing assembly (4) in position on a section of pipe or wood blocks. Put center pin (2), retainer washer (3), and retainer plate (1) in position on drive shaft and bearing assembly (4). 4. Put 6V1541 Quick Cure Primer on seven screws (5), and let it dry. Put 9S3263 Thread Lock on the seven screws, and install them loosely to hold retainer plate (1) to the drive shaft and bearing assembly. Put three pistons (6) in position to align retainer plate (1). Tighten seven screws (5) to a torque of 6 N m (53 lb.in.) for the Type AA2F 63 Motor. Tighten seven screws (5) to a torque of 10 N m (89 lb.in.) for the Type AA2F 80, AA2F 107, and AA2F 131 Motor. Remove three pistons (6) from the assembly.
All piston rings must be installed with the marks toward the flat end of the piston or the motor will not operate.
5. The piston rings are spherical and must be installed with marks (7) toward the flat end of piston (6). Use tooling (A), and install upper piston ring (8).6. Use tooling (A), and install the lower piston ring with marks (7) toward the flat end of piston (6). Repeat Steps 5 and 6 for all seven pistons.7. Rotate the piston rings so the end gaps of the upper and lower piston rings are 180° apart. 8. The spring collar that was selected in Step 2 should be used at this time. Put spring collar (10) and four Bellville washers (11) into the center pin bore of cylinder block (9). 9. Put SAE 10W oil on seven pistons (12) and in the piston bores in the cylinder block. Install seven pistons (12) into the cylinder block as