ADAPTER-STR 5168713 - Caterpillar

1. Re-check the series number on the control feedback link to ensure that it is compatible with the pump. Follow the procedure outlined below to install the linkage: A. Unscrew the bushing, using care not to damage its O-ring. See Figure 6.B. Install the new linkage assembly shaft through the swashplate feedback shaft hole. Place the ball in the crosslink ball cavity.C. Lubricate the shaft O-ring and replace the bushing over the shaft. Torque to the body (10 - 15 foot-pounds) so that the feedback shaft extends through the bushing.D. Install the retaining ring in the groove on the shaft.2. Align one end of the replacement drag link with the holes in the swashplate link arms.3. Insert the press fit pin through the case drain port to trap the drag link in the swashplate clevis. It will be necessary to tap the pin into place until the head of the pin is flush to the clevis.4. Install the retaining ring by forcing it onto the tapered end of the pin until it locks into the recess on the pin shaft. Again, use caution not to drop any components into the pump housing.5. One .052 inch diameter orifice must be installed in each servo port if reduced swashplate response is desired.6. Engage the pin on the control in the drag link and swing the control into place against the pump housing. The drag link should be on the cylinder block side of the swashplate. Install the seven mounting screws and tighten to 10 - 11 foot-pounds of torque.7. Connect the pipe or tubing from the control handle into the C1 and C2 ports (9/16 - 18 UNF threads per SAE J514). Phasing of the HDC is such that a pressure rise at the C2 port causes a pressure rise at the A output port of the pump, given a clockwise pump prime mover rotation as viewed into the input shaft.