Rear Hull Ring Assembly Replacement Procedures

Time required for this step: Approximately 3 Minutes

Tools required for this step:

• O-Ring Lubricator

Parts involved in this step:

MHU-003-GY-KIT Rear Hull Ring Assembly

Quantity	Part Number	Part Description
1	MHU-003-GY-KIT	Main Hull Assembly Port Ring (Pro 4)
1	OR-154	O-Ring #154

Steps

1. Use a new lubricated O-ring, or remove and lubricate the existing O-ring, and install it in the larger diameter O-ring groove of the rear hull ring.

2. Orient the rear hull ring so that the receiver bracket is facing toward the ROV and at the bottom of the main hull.

3. Position the rear hull ring at the rear of the main hull and make sure the rear of the heat sink engages in the receiver bracket at the bottom of the rear hull ring.

4. Being careful not to pinch the O-ring, press the rear hull ring into the main hull until is seats against the main hull. Make sure that you press the front ring evenly so that it does not bind.

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