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Table of Contents

Copyright Table of Contents About this Document How to Get Help Removal Procedures 2 - Horizontal Nozzle Replacement Procedures 1 - Horizontal Nozzle

About this Document

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
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Telephone
+1 610-458-3000	Office
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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.

Online Manual

The full version of this manual is available online in the following formats:

• http://download.videoray.com/documentation/_VR-PRO4-08-0001_index for viewing the HMTL online.

• http://download.videoray.com/documentation/mnt/pdf/videoray_doc__VR-PRO4-08-0001_index.pdf for viewing the PDF online.

• http://download.videoray.com/documentation/mnt/zip/videoray_doc__VR-PRO4-08-0001_index.exe for downloading the HTML and PDF files.

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 Service Centers and Dealers

www.videoray.com/dealer.html

Training

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

Horizontal Thruster Nozzle Kit Removal Overview

Skill level recommended: Novice

Total time required: Approximately 4 Minutes (8 Minutes for both sides)

Tools required:

• 7/16 Inch Open End or Socket Wrench

The following components must be removed:

• Horizontal Thruster Propeller Kit (Left and Right)
• Horizontal Thruster Nozzle Kit

See the corresponding sections of this manual for instructions for parts other than the Horizontal Thruster Nozzle Kit.

Horizontal Thruster Nozzle Kit Removal Procedures

Time required for this step: Approximately 2 Minutes (4 Minutes for both sides)

Tools required for this step:

• None

Parts involved in this step:

VR-PRO4-08-0001 Horizontal Thruster Nozzle Kit

Quantity	Part Number	Part Description
1	GTO-017-ASSM	Thruster Nozzle Assembly
1	GTO-012	Thruster Nozzle Part Nut (GTO, Deep Blue, Pro 4)

Steps

Note: The following step-by-step instructions apply to one side. Repeat these steps on both sides if you plan to remove both Horizontal Nozzles.

1. Unscrew the horizontal thruster nozzle nut from the horizontal thruster cone.

2. Once the horizontal thruster nut is removed, slide the horizontal thruster nozzle assembly off of the horizontal thruster cone.

Tips

The horizontal thruster nut has right-handed threads. Turn the thruster nut counterclockwise, when viewed from the rear of the ROV, in order to loosen it.

If you cannot turn the horizontal thruster nozzle nut, grasp the horizontal thruster nozzle assembly and nut and turn them both at the same time. This should free the nut enough that it can be turned by hand.

Horizontal Thruster Nozzle Kit Replacement Overview

Skill level recommended: Novice

Total time required: Approximately 4 Minutes (8 Minutes for both sides)

Tools required:

• 7/16 Inch Open End or Socket Wrench

The following components must be replaced:

• Horizontal Thruster Nozzle Kit
• Horizontal Thruster Propeller Kit (Left and Right)

See the corresponding sections of this manual for instructions for parts other than the Horizontal Thruster Nozzle Kit.

Horizontal Thruster Nozzle Kit Replacement Procedures

Time required for this step: Approximately 2 Minutes (4 Minutes for both sides)

Tools required for this step:

• None

Parts involved in this step:

VR-PRO4-08-0001 Horizontal Thruster Nozzle Kit

Quantity	Part Number	Part Description
1	GTO-017-ASSM	Thruster Nozzle Assembly
1	GTO-012	Thruster Nozzle Part Nut (GTO, Deep Blue, Pro 4)

Steps

Note: The following step-by-step instructions apply to one side. Repeat these steps on both sides if you are replacing both Horizontal Nozzles.

1. Orient the horizontal thruster nozzle assembly with the smaller end toward the front of the ROV.

2. Slide the horizontal thruster nozzle assembly onto the horizontal thruster cone.

3. Orient the horizontal thruster nozzle nut with the larger end toward the front of the ROV.

4. Replace the horizontal thruster nozzle nut and tighten it against the hub of the horizontal thruster nozzle.

5. Holding both the horizontal thruster nozzle and nut, turn them together until the assembly is snug. Do NOT over tighten the nozzle assembly.

Tip

The horizontal thruster nut has right-handed threads. Turn the thruster nut clockwise, when viewed from the rear of the ROV, in order to tighten it.