Illustration 1 g00673455 (1) Pilot oil filter The oil delivery from the pilot pump flows through pilot oil filter (1) and into the components in…
Illustration 1 g00673419 Pilot pump The pilot pump is a gear type pump that supplies oil flow to the pilot system. The pilot pump is…
Illustration 1 g00774010 (1) Swing parking brake (2) Displacement change valve (left travel motor) (3) Displacement change valve (right travel motor) (4) Line (pilot oil…
Illustration 1 g00902442 (1) Engine and pump controller (2) Fuse panel (3) Engine (4) Governor lever (5) Main pumps (6) Battery (7) Engine start switch…
Main Hydraulic Schematic Illustration 1 g00773987 (1) Swing motor (2) Left travel motor (3) Right travel motor (4) Stick cylinder (5) Travel brake valve (left)…
Reference: For testing and adjusting of the hydraulic system, refer to Testing and Adjusting, “Excavator Hydraulic System” for your machine. Reference: For systems operation of…
Connecting a Computer to the Product Link System Required Software Verify that PL522 and 523 has installed the latest flash file. Supported Connections for Hardware…
Installation Parameters Configured for PL522 and 523 Ensure that the correct steps have been taken to connect the computer with Cat ET software to the…
Electronic Control Module (ECM) Illustration 1 g02167935 PL522 and 523 ECM The PL522 and 523 are electronic control modules (ECM). The ECM is initially setup…
Illustration 1 g02167864 The PL522 and 523 is a communications device that uses a cellular network in order to transmit information to the following: Caterpillar,…