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Table of Contents

Copyright Table of Contents About this Document How to Get Help Removal Procedures 16 - Vertical Thruster Kit Replacement Procedures 1 - Vertical Thruster Kit

About this Document

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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.
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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.

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Online Manual

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

• http://download.videoray.com/documentation/_VR-PRO4-02-KIT_index for viewing the HMTL online.

• http://download.videoray.com/documentation/mnt/pdf/videoray_doc__VR-PRO4-02-KIT_index.pdf for viewing the PDF online.

• http://download.videoray.com/documentation/mnt/zip/videoray_doc__VR-PRO4-02-KIT_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
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Frequently Asked Questions	www.rovfaq.com
ROV User Forum	www.rovinfo.com

Global Support

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Regional Support

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www.videoray.com/dealer.html

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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.

Vertical Thruster Kit Removal Overview

Skill level recommended: Advanced

Total time required: Approximately 54 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
• 1-1/4 Inch Open End or Deep Socket Wrench

The following components must be removed:

• Float Block Kit
• Skid Kit
• Vertical Thruster Propeller Kit
• Vertical Thruster Splitter
• Vertical Thruster Cartridge Seal
• 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
• Vertical Thruster Kit

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

Vertical Thruster Kit Removal Procedures

Time required for this step: Approximately 5 Minutes

Tools required for this step:

• 1-1/4 Inch Open End or Deep Socket Wrench

Parts involved in this step:

VR-PRO4-02-KIT Vertical Thruster Kit

Quantity	Part Number	Part Description
1	VR-PRO4-02-0001	Thruster Assembly Vertical Drive Train Brushless (Pro 4)
1	VTH-001-GY	Thruster Part Vertical Cone (Pro 4)
1	VTH-003-GY	Thruster Part Vertical Cone Spacer (Pro 4)
1	OR-020	O-Ring #020
1	OR-118	O-Ring #118

Steps

1. From inside the main hull, cut the cable tie that holds the wires to the vertical thruster motor.

2. From inside the main hull, disconnect the wires from the vertical thruster motor.

3. Unscrew the vertical thruster dome nut from the top of the vertical thruster drive train.

4. Remove vertical thruster motor spacer from the top of the vertical motor drive train.

5. Pull the vertical drive train from the inside of the main hull.

Vertical Thruster Kit Replacement Overview

Skill level recommended: Advanced

Total time required: Approximately 56 Minutes

Tools required:

• 1-1/4 Inch Open End or Deep Socket Wrench
• Torque Wrench
• Tef-Gel or equivalent
• O-Ring Lubricator
• 3/4 Inch Socket
• 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
• Lint-Free Tissue or Rag
• #2 Phillips Head Screw Driver

The following components must be replaced:

• Vertical Thruster Kit
• 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 Cartridge Seal
• 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 Vertical Thruster Kit.

Vertical Thruster Kit Replacement Procedures

Time required for this step: Approximately 5 Minutes

Tools required for this step:

• 1-1/4 Inch Open End or Deep Socket Wrench
• Torque Wrench
• Tef-Gel or equivalent
• O-Ring Lubricator

Parts involved in this step:

VR-PRO4-02-KIT Vertical Thruster Kit

Quantity	Part Number	Part Description
1	VR-PRO4-02-0001	Thruster Assembly Vertical Drive Train Brushless (Pro 4)
1	VTH-001-GY	Thruster Part Vertical Cone (Pro 4)
1	VTH-003-GY	Thruster Part Vertical Cone Spacer (Pro 4)
1	OR-020	O-Ring #020
1	OR-118	O-Ring #118

Steps

1. Apply Tef-Gel to the main hull in the area where the vertical thruster cone spacer will contact the hull. Do NOT get Tef-Gel too close to the hole.

2. Install the vertical thruster drive train from the inside of the main hull with the motor wires toward the front of the ROV and the thruster shaft through the vertical thruster hole in the main hull.

3. Lubricate and install the #118 O-ring in the vertical thruster spacer.

4. Replace the vertical thruster spacer over the vertical thruster drive train, with the curved surface towards the hull.

5. Lubricate and install the #020 O-ring in the vertical thruster dome nut.

6. Make sure the vertical thruster drive train and spacer are aligned concentrically with the vertical thruster hole in the hull.

7. Replace the vertical thruster dome nut over the vertical thruster drive train and tighten the nut to 70 inch-pounds (7.9 Nm).

8. Connect the wires from the vertical motor assembly to the corresponding wires of the ROV wire harness.

9. Secure the wires to vertical thruster motor assembly using the cable tie.