KIT-SEAL 4416619 - Caterpillar

Illustration 1.
Front View of Relay/Fuse and Fuse Blocks - 914G and IT14G Machines.(1) Torx Screw(2) Terminal Block Base (3) Fuse Block (Switched Power)(4) Relay/Fuse Block (Unswitched Power)(5) Film Identification (Fuse/Relay Panel)
Illustration 2.
Front View of Fuse Blocks - 928G and IT28G Machines.(1) Torx Screw(2) Terminal Block Base(3) Fuse Block (Switched Power)(4) Fuse Block (Unswitched Power)(5) Film Identification (Fuse/Relay Panel) After the power, current, and condition requirements are known, the next step is to determine where to make the connections in the electrical system and what materials are required to establish the new electrical circuit. Charts 1-4 provide a guide for identifying the power source, the available spare terminal positions, and the electrical components, based on circuit size (amperage) needed to install a new electrical circuit.
The procedure for adding a new electrical circuit is provided below. See Illustrations 1 and 2.
1. Open the main power disconnect or circuit breaker to de-energize the machine's electrical systems.2. Remove the cover plate from the electrical compartment that contains the electrical relays and the fuses. This compartment is located just inside the right side door of the cab.3. Remove the relay and fuse blocks. Load the new blade terminal and wire assembly into the desired relay/fuse block position. Follow the procedure, "Loading New Terminal in Terminal Block," that is provided in this article.4. Re-mount the relay and fuse blocks inside the electrical compartment.5. Route the wire from the new blade terminal and wire assembly to the new electrical device. This is the positive power lead for the new electrical device. Ensure that the new electrical device is properly grounded according to the manufacturer's instructions. If necessary, install a new ground wire from the electrical device to the cab ground which is located under the cab floor on the right side of the machine.6. Install the proper fuse in the selected location. Use Charts 1-4, as appropriate, to determine the size of fuse needed (Column G).7. Replace the cover on the electrical compartment.8. Energize the new electrical circuit by closing the main power disconnect or circuit breaker and, if applicable, turning the switching device (key switch) to the ON position.9. Check the new electrical device for proper operation. Loading New Terminal in Terminal Block
1. Remove the two Torx screws (1) in order to remove the relay/fuse blocks and base (2) from its mounted position. See Illustrations 1 and 2.2. Disconnect fuse bus bar terminals from the Main Power Relay and the Lamp Breaker.3. Withdraw the relay/fuse blocks and base from inside the electrical compartment in order to gain access to the back side of the base. See Illustrations 1 and 2, Detail A.4. Remove all three relay/fuse blocks from the base by using a small screwdriver to release the four tangs that secure each relay/fuse block. Access the tangs from the back of the base. See Illustrations 1 and 2, Detail B.5. Select the relay/fuse block to which the new circuit will be added. Use a small screwdriver to remove the blue terminal