ALTERNATOR GP-CHARGING 2W9774 - Caterpillar

Illustration 1 g00583564
Replacement Of The Relay ModuleThe Rear View of the GSC+ (1) Relay Module (2) Screws (3) Tape (4) Desiccant Package (5) O-Ring Seal (6) Cable connectorRelay module (1) contains the relays, fuses and terminals that are used to operate the external devices of the EMCP II+. Relay module (1) is a component of the GSC+.Reference: Special Instruction, SEHS9710, "Relay Module Replacement".Replacement Procedure
Remove the positive lead wire from the battery.
Be sure that all wires at the terminal stripsm (1) are marked with the correct termination point. During reassembly, these wires must be reattached to the correct terminal. Remove all wires from the terminals and posts of relay module (1) .
Remove ten screws (2) that fasten relay module (1) to the GSC+.
Be aware that O-ring seal (5) exists. Partially separate relay module (1) from the GSC+. Carefully disconnect cable clamp and cable connector (6) from relay module (1) .Check that the small jumper block matches the replacement's relay module. The relay's small jumper block is located near the ribbon cable. See Testing And Adjusting, "AC Voltage Range - Adjust".
Replace the desiccant package (4). The replacement is provided with the new relay module. Attach the new package in the same location as the former package.Note: The desiccant package should not be removed from the container until you are ready to install the desiccant package. The amount of time that is required to remove the relay module is 20 minutes. Longer periods of time will cause the desiccant package to become saturated with moisture. This is especially true in a humid environment.
Install new O-ring seal (5) in the groove of relay module (1). Make sure that O-ring seal (5) is seated properly. Align and reconnect cable connector (6) to the relay module (1). Install the cable clamp.
Place relay module (1) on the GSC+. Check that O-ring (5) remains seated. Align the screw holes of relay module (1) and the GSC+. Install the ten screws. Tighten the ten screws (2) to 1.70 0.25 N m (15 2 lb in).
Reconnect all the wires to the terminals of the relay module that were removed. Reconnect the positive lead wire to the battery. If necessary, see the Generator Set Wiring Diagram in Testing And Adjusting, "Schematics And Wiring Diagrams".