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Table of Contents

Copyright Table of Contents About this Document How to Get Help Before Contacting Support OverView Removal Procedures 14 - Pressure Sensor Replacement Procedures 1 - Pressure Sensor

About this Document

Online Manual

This Quick Start Guide is a subset of the full version of this manual, which is available on the Pro 4 control panel and online in the following formats:

• Installed on the Pro 4 control panel at: _VR-PRO4-15-0001_index for viewing the HMTL locally.

• http://download.videoray.com/_VR-PRO4-15-0001_index for viewing the HMTL online.

• http://download.videoray.com/documentation/mnt/pdf/videoray_doc__VR-PRO4-15-0001_index.pdf for viewing the PDF online.

• http://download.videoray.com/documentation/mnt/zip/videoray_doc__VR-PRO4-15-0001_index.exe for downloading the HTML and PDF files.

Document Conventions

Several symbols are used throughout this documentation to add emphasis and to assist in relocating important information. The following table describes these symbols and their uses.

SYMBOL	DESCRIPTION
	The Danger icon is used to indicate there is a potential risk of personal injury or death. Extra care should be taken to understand the risks, and all personnel should exercise caution. It may also be appropriate to warn others in the immediate vicinity.
	The Caution icon is used to indicate there is a potential risk of damage to the equipment or surrounding property. Personnel should receive training in the appropriate procedures before attempting to operate or maintain the equipment.
	The Do Not icon is used to indicate that an action or activity should NOT be performed.
	The Note icon is used to highlight a specific detail or point of information.
	The Tip icon is used to highlight a suggestion or recommendation.

Beyond this Document

There is no substitute for experience and/or training, especially with respect to the real purpose for which you plan to use this equipment. We encourage you to explore options beyond the scope of these materials to expand your knowledge and skills necessary to support your applications. In addition to this documentation, VideoRay offers training and technical support and hosts a general user discussion forum and user image gallery.

We also realize that collectively, users of our products spend considerably more time operating our systems than we do ourselves. Users also encounter more diverse operating environments across an extremely broad range of applications. We highly value this vast experience base, and invite and encourage you to share your experiences and suggestions with us. Please feel free to contact us by any of the methods listed below.

Quality Commitment

VideoRay strives to design, manufacture, deliver and support the highest quality products and services, including this documentation. We have made every effort to ensure that this documentation is accurate and provides you with the most up-to-date information.

If you find any errors in this documentation or have suggestions for improvements, each page contains a "Help us improve this document" feedback link in the left margin (you must be connected to the Internet to use this link).

Address
VideoRay LLC 212 East High Street Pottstown, PA 19464 USA
Email
info@videoray.com	General Information and Sales
support@videoray.com	Technical Support
Telephone
+1 610-458-3000	Office
+1 610-458-3010	Fax

Disclaimer

This document is deemed accurate at the time of its writing, however it is not a legal contract and the information contained herein should not be construed to represent any form of commitment. This document as well as the associated products and services are subject to change without notice.

How to Get Help

Help for your Pro 4 is available through several channels.

All Hours Self-Service / Crowd-Source Tools

Operator's Manuals and Standard Operating Procedures	www.videoray.com/support/manuals.html
Software Downloads	www.videoray.com/support/downloads.html
Frequently Asked Questions	www.rovfaq.com
ROV User Forum	www.rovinfo.com

Global Support

Email	support@videoray.com
Phone	+1 610-458-3000 (select option 1)
Skype	videoray.support (by appointment )
Remote Sessions	www.videoray.com/support/remote-support.html (by appointment )

Regional Support

VideoRay Authorized Dealers and Service Centers

www.videoray.com/dealer.html

Training

Operator Training	www.videoray.com/learn-more/training.html
Advanced Maintenance Training	http://www.videoray.com/learn-more/training/advanced-maintenance-training.html

Operational Strategies and Tactics Support

If you need help understanding how to apply your system to a specific project, contact VideoRay or you local VideoRay dealer. We can provide guidance or help you find a certified consultant.

OverView

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Pressure Sensor Kit Removal Overview

Skill level recommended: Advanced

Total time required: Approximately 47 Minutes

Tools required:

• #2 Phillips Head Screw Driver
• 7/16 Inch Open End or Socket Wrench
• 5/16 Inch Open End Wrench or Nut Driver
• 5/16 Inch Open End Wrench or Nut Driver (Additional)
• Wooden Dowel Rod 3/8" x 12"
• Dental Pick or equivalent
• 3/4 Inch Open End Wrench

The following components must be removed:

• Float Block Kit
• Skid Kit
• Vertical Thruster Propeller Kit
• Vertical Thruster Splitter
• Horizontal Thruster Propeller Kit (Left and Right)
• Horizontal Thruster Nozzle Kit
• Dome Retaining Rings and Main Hull Rods
• Front Dome
• Front Hull Ring Assembly with Camera
• Rear Dome
• Rear Hull Ring Assembly
• Desiccant Pack
• ROV Board Set
• Pressure Sensor Kit

See the corresponding sections of this manual for instructions for parts other than the Pressure Sensor Kit.

Notes:

• The pressure sensor has been updated to eliminate a need for a ground to the hull. New pressure sensors have a white housing. If replacing a black housing pressure sensor with a white housing pressure sensor, it is important to remove or cut the green/yellow ground wire connected to the termination block.

Pressure Sensor Kit Removal Procedures

Time required for this step: Approximately 5 Minutes

Tools required for this step:

• 3/4 Inch Open End Wrench

Parts involved in this step:

VR-PRO4-15-0001 Pressure Sensor Kit

Quantity	Part Number	Part Description
1	PS-001-ASSM-P4	Pressure Sensor Assembly (Pro 4)
1	OR-112	O-Ring #112
1	PSL-001	Pressure Sensor Part Spacer Lower (Inner)
1	OR-114	O-Ring #114
1	PSU-001	Pressure Sensor Part Spacer Upper (Outer)
1	5530K38	Nut 1/4" NPT x 3/4" Locknut PTFE

Steps

1. Using the 3/4 inch open end wrench, unscrew the pressure sensor 1/4 inch PTFE nut from the top of the pressure sensor.

2. Remove the upper spacer from the top of the pressure sensor.

3. Pull the pressure sensor assembly from the inside of the main hull.

Pressure Sensor Kit Replacement Overview

Skill level recommended: Advanced

Total time required: Approximately 49 Minutes

Tools required:

• 3/4 Inch Socket
• Torque Wrench
• Tef-Gel or equivalent
• O-Ring Lubricator
• 5/16 Inch Open End Wrench or Nut Driver
• 5/16 Inch Open End Wrench or Nut Driver (Additional)
• Red Loctite or equivalent
• 7/16 Inch Open End or Socket Wrench
• #2 Phillips Head Screw Driver

The following components must be replaced:

• Pressure Sensor Kit
• ROV Board Set
• Desiccant Pack
• Rear Hull Ring Assembly
• Rear Dome
• Front Hull Ring Assembly with Camera
• Front Dome
• Dome Retaining Rings and Main Hull Rods
• Horizontal Thruster Nozzle Kit
• Horizontal Thruster Propeller Kit (Left and Right)
• Vertical Thruster Splitter
• Vertical Thruster Propeller Kit
• Skid Kit
• Float Block Kit

See the corresponding sections of this manual for instructions for parts other than the Pressure Sensor Kit.

Notes:

• The pressure sensor has been updated to eliminate a need for a ground to the hull. New pressure sensors have a white housing. If replacing a black housing pressure sensor with a white housing pressure sensor, it is important to remove or cut the green/yellow ground wire connected to the termination block stud.

Pressure Sensor Kit Replacement Procedures

Time required for this step: Approximately 5 Minutes

Tools required for this step:

• 3/4 Inch Socket
• Torque Wrench
• Tef-Gel or equivalent
• O-Ring Lubricator

Parts involved in this step:

VR-PRO4-15-0001 Pressure Sensor Kit

Quantity	Part Number	Part Description
1	PS-001-ASSM-P4	Pressure Sensor Assembly (Pro 4)
1	OR-112	O-Ring #112
1	PSL-001	Pressure Sensor Part Spacer Lower (Inner)
1	OR-114	O-Ring #114
1	PSU-001	Pressure Sensor Part Spacer Upper (Outer)
1	5530K38	Nut 1/4" NPT x 3/4" Locknut PTFE

Steps

1. Clean the area around the opening for the pressure sensor on the inside and outside of the main hull. Spread a thin layer of Tef-Gel to completely cover the area under the upper spacer on the outside of the main hull.

2. Lubricate and install the #112 O-ring over the pressure sensor.

3. Place the lower pressure sensor spacer in position over the pressure sensor, with the curved surface away from the pressure sensor.

4. Lubricate and install the #114 O-ring in the groove on the top side of the lower pressure sensor spacer.

5. Replace the pressure sensor and lower pressure sensor spacer from the inside of the main hull through the pressure sensor hole in the hull.

6. Replace the upper pressure sensor spacer over the pressure sensor stud, with the curved surface towards the hull.

7. Orient the pressure sensor so that the connectors in its ribbon cable are facing toward the rear of the ROV.

8. Make sure the upper and lower pressure sensor spacers are oriented so the curved surface of each aligns with the curvature of the main hull.

9. Replace the pressure sensor nut in position over the pressure sensor stud and tighten the nut to 26 inch-pounds (2.5 Nm). Use your hand to hold the pressure sensor housing inside the main hull to prevent it from rotating. Do not use any tools to hold the pressure sensor housing.

Product Update

The pressure sensor has been updated to eliminate a need for a ground to the hull. New pressure sensors have a white housing. If replacing a black housing pressure sensor with a white housing pressure sensor, it is important to remove or cut the green/yellow ground wire connected to the termination block.