Retraction and Fuses Unit (RFU)
The Retraction and Fuses Unit is responsible for the power distribution. Smart fuses are used
in the RFU to protect the system from electric overload. The RFU is fastened to the same
bracket as the IMD, which is located on the right side of the wheel box and motor controller.
Overview
Figure 4-37 RFU
Removal
1. Ensure the master switch of the system is switched off.
2. Disconnect the wires of the IMD (1) and RFU (2).
3. Loosen the four IMD/RFU bracket bolts (4) to split the bracket.
4. Remove the RFU (2) and one side of the IMD/RFU Bracket (3).
Installation
1. Install the RFU (2) into the one half of the IMD/RFU Bracket (3) and fasten the bracket
to the other side of the bracket using the four IMD/RFU bracket bolts (4).
CAUTION: Be careful not to push out the top captive nuts while inserting the fastening
bolts.
2. Connect the wires of the IMD (1) and RFU (2).
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