ROCNA ROCFIS004GS Anchors Fisherman 4 Kg Galvanized User Guide

ROCNA ROCFIS004GS Anchors Fisherman 4 Kg Galvanized

PRODUCT INFORMATION

Congratulations on your purchase of a Rocna anchor! We are confident that you will experience a substantial improvement in anchoring performance and reliability. To help you gain full satisfaction from your new anchor, please take the time to look over this brief guide.

Contents:

• Becoming Familiar With Your Rocna Original, Mk II, or Vulcan
• About Your Rocna or Vulcan and Its Features
• How to Use Your Rocna or Vulcan
• The Rocna Fisherman Variant
• Lifetime Manufacturer’s Warranty Against Defects
• How to Contact Us
• Disclaimer & Intellectual Property

Becoming Familiar With Your Rocna Original, Mk II, or Vulcan Shank

• Shackle/rode attachment point
• Lashing point
• Tandem anchor attachment point
• Roll-bar
• Breather hole for galvanizing
• Fluke
• Toe Heel
• Skid 3
• Buoyed retrieval line attachment point

About Your Rocna or Vulcan Anchor and Its Features
The Rocna Original, Rocna Mk II, and Vulcan are new-generation anchors developed in New Zealand. Best described as setting super high holding designs, a genuine Rocna or Vulcan is the world’s best anchoring solution for your vessel.

The Rocna anchor range was designed to address the limitations shared by all older and newer anchors available. All designs feature:

• Universal-function design criteria that make them suitable for the widest possible range of seabed types
• Maximized resistance and holding power from a large fluke area

All Rocna anchors embody a philosophy of strength, durability, simplicity, and clarity of design.

• Rocna : About the roll-bar (Original) or roll-foilTM (Mk II) The roll-bar also reinforces the heel of the fluke. With the concave shape of the blade, this makes the anchor very strong. It may also be used as a carry-point to assist handling.
• Rocna Mk II: more about the roll-foilTM  The patented roll-foilTM on the Rocna Mk II is one of its key upgrades. It performs the same function as the classic roll-bar but is designed like a wing or foil with varying profiles along its width that intelligently direct mudflow. This helps the anchor’s self-righting action if dragged while still upside-down, reduces the likelihood of fouling (clogging) during setting, and adds more setting force and holding power.
• Vulcan : About the roll-palmTM The roll-palmTM on the Vulcan replaces the roll-bar on the Rocna, and works in conjunction with a cleverly designed shank shape to facilitate the self-righting function for correct setting attitude. It supports the anchor on soft mud if it lands on the seabed on the end. The roll-palmTM also reinforces and strengthens the heel section of the fluke.

Becoming Familiar With Your Rocna Original, Mk II, or Vulcan

About Your Rocna or Vulcan Anchor and Its Features

The Rocna Original, Rocna Mk II, and Vulcan are new-generation anchors developed in New Zealand. Best described as setting super high holding designs, a genuine Rocna or Vulcan is the world’s best anchoring solution for your vessel. The Rocna anchor range was designed to address the limitations shared by all older and newer anchors available.

All designs feature:

• universal-function design criteria that make them suitable for the widest possible range of seabed types
• maximized resistance and holding power from a large fluke area with efficient distribution of weight and concave fluke geometries designed to grip and hold after setting quickly
• highly reliable setting behaviour in the largest range of environments and situations
• excellent penetration abilities even on difficult seabeds such as weed, kelp, and grass
• resistance to roll-out under heavy or veering loads and a strong tendency to remain embedded even if being dragged
• practical designs to stowage on your boat’s bow, resulting in a secure fit intended to minimize movement when underway
• high strength and resistance to bending in the shank and other load-bearing components
• no moving parts that eventually wear and can be a hazard to personnel.

All Rocna anchors embody a philosophy of strength, durability, simplicity, and clarity of design.

• Rocna : About the roll-bar (Original) or roll-foil™ (Mk II)
  The roll-bar on the Rocna called the roll-foil™ on the Rocna Mk II, serves one critical purpose: it ensures the anchor will adopt the correct preliminary setting attitude, which is loosely described as being on its side with the complete anchor weight supported between the skids, the end of the shank, and the chisel-tip of the blade. In addition to ensuring the Rocna will always achieve the correct orientation, the roll bar means the fluke tip does not need to be weighted with dedicated ballast. This in turn permits a much larger fluke area and generally optimized weight distribution. The roll bar also reinforces the heel of the fluke. With the concave shape of the blade, this makes the anchor very strong. It may also be used as a carry-point to assist handling.

• Rocna Mk II: more about the roll-foil™
  The patented roll-foil™ on the Rocna Mk II is one of its key upgrades. It performs the same function as the classic roll bar but is designed like a wing or foil with varying profiles along its width that intelligently direct mudflow. This helps the anchor’s self-righting action if dragged while still upside-down, reduces the likelihood of fouling (clogging) during setting, and adds more setting force and holding power.

• Vulcan : About the role-palm™
  The roll-palm™ on the Vulcan replaces the roll-bar on the Rocna and works in conjunction with a cleverly designed shank shape to facilitate the self- righting function for correct setting attitude. It supports the anchor on soft mud if it lands on the seabed on the end. The roll-palm™ also reinforces and strengthens the heel section of the fluke. The Vulcan makes use of some dedicated ballast on the underside of its fluke to assist self-righting, but this bulb is positioned for maximum torque which together with the shank geometry enables this weight to be kept down, optimizing fluke surface area.

Penetrating the seabed surface
Once in the correct setting orientation or attitude, the pull of your boat on the anchor rode results in resistance from the fluke tip and skid which creates a turning moment, forcing the chisel-shaped tip into the seabed. As resistance grows the dynamics alter, and the anchor rolls toward an upright position and quickly buries itself.

Setting performance
Your Rocna or Vulcan is designed to set as quickly and reliably as possible. Typically it will bury itself within one anchor’s length of where it lands. This performance can be so dramatic that care should be taken during your normal anchoring procedure, since it may set more abruptly than you are used to. If you reverse your boat too speedily, you risk damaging equipment.

About roll-stability
Once a Rocna or Vulcan is set, it is designed and tested to remain buried even under high loads. Many other anchors will roll or “trip” out when overloaded, but a Rocna or Vulcan is engineered to remain embedded and maintain its upright attitude.
Veering loads such as rapidly changing tides or unpredictable wind condi-tions will also cause most other anchor types to lose their set position and drag. A Rocna or Vulcan will remain buried under most changes in load direction. If jerked out violently, it should quickly re-set owing to the

How to Use Your Rocna or Vulcan

Shackles and attaching rode
Your Rocna or Vulcan has a slotted attachment point, meaning that a single shackle may be used. You should select the largest shackle size the pin of which will fit through your chain end-link. Loop your shackle head through the shank shackle attachment point, fastening the pin through the end link in your chain. We recommend the use of tested shackles, especially on anchor sizes 15 kg (33 lb) and above. Stainless steel shackles are popular but care should be taken. A forged type is preferable, and cast versions should always be proof- tested. Select the largest size possible given the maximum pin diameter that the chain end link will accept. When using a G40 or stronger chain, appropriately rated high-strength bow shackles should be used.

Important : conventional shackles must have their pin seized with two turns of stainless steel or Monel seizing wire, lest it work its way loose.

For more information, please consult the article on shackles on the Rocna Knowledge Base.

Swivels
Swivels are a popular accessory helpful in reducing road twists and allowing the anchor to be rotated upon retrieval. A swivel should be rated to the breaking strength of the chain (not the working load), and care must be taken to avoid cheap, poorly engineered, and badly built designs.

When installing, be sure the swivel cannot be subjected to a veering load and can rotate properly. We advise against attaching the fork of a swivel directly to the anchor shank. It is safer to put a few links in the chain between the swivel and the anchor.

Vulcan only : swivels must never be connected directly to the shank. For more information, please consult the article on swivels on the Rocna Knowledge Base.

Using a buoyed retrieval line
Although in normal conditions the Rocna and Vulcan are easily recovered using the rode, it is not uncommon for anchors to become caught on underwater objects such as rock, coral, and cables. When fouled, the anchor may be difficult or impossible to retrieve by simply pulling on the road. A solution to this is to use a buoyed retrieval line by attaching a small buoy to the dedicated attachment point (see the “Becoming Familiar” section). Use an appropriate non-floating rope of a length that is slightly greater than the depth of the water at high tide. The buoy will then float directly above the anchor. If attempts to retrieve the anchor in a normal fashion fail, the buoy may be picked up and the anchor lifted ‘backward’ using the retrieval line.

• Rocna Original and Mk II: the line may be attached by shackle to the buoyed retrieval line attachment point. Keep the line outside the roll-bar or roll-foil.
• Vulcan : the line may be fed through from the top, and a figure-of-8 knot tied in its end such that the line is securely stopped.

Using a tandem anchor
(Rocna Original and Mk II only)

The Rocna has a dedicated attachment point for the use of a second (tandem) anchor in storm conditions if desired. To maximize ultimate holding power, this is recommended as a superior alternative to dual anchors in a V or Y configuration. A second anchor is set about a boat length ahead of the primary anchor, its chain rode (do not use rope) terminating at the tandem anchor attachment point of the first. Attach the tandem anchor chain directly to the tandem attachment point, running the rode over the top of the main anchor fluke and through the roll-bar.

Failure to follow these instructions could fail (pull-out) of the primary anchor.

Nb.: Most boaters should never have cause for tandem anchoring. Your primary anchor should be sized so that it is adequate on its own in practically all conditions – if it is not, then upgrade. This functionality is provided for those more “extreme” adventurers who require it. Tandem anchoring is a complicated endeavor and the reader is encouraged to consult the relevant articles available on the Rocna Knowledge Base.

Securing the anchor when underway
The Rocna and Vulcan have shank shapes that are designed to minimize movement when pulled home securely on a bow roller. The anchor must be held tightly back with the roller in the position shown to achieve this. We advise you not to rely on your windlass to secure the anchor underway. Use an alternative tensioning system on the road near the anchor.

Twin rollers or a large single roller eliminate movement best. This is because two points of contact exist for the anchor instead of just one. If the remaining movement is unacceptable, the anchor should be lashed in place. It is ideal to lash your anchor with rope when underway. The Rocna Original and Mk II feature a dedicated lashing point, and the tandem anchor attachment point may be used on all anchors. We do not recommend that these holes be used for restraining pins, as a wave at sea or collision could bend and jam the pin. Do not drill new holes in the anchor shank – this will weaken the shank and void the warranty. A retaining bail fitted atop the bow roller assembly and positioned to contact the top of the anchor shank can also assist in holding the anchor secure.

Looking after your anchor

Rocna anchors are available in galvanized and stainless steel construction to provide durable protection against corrosion. Both metals however will benefit from preventive maintenance. All anchors should be cleaned with fresh water when possible.

Rocna Original only : the hollow roll-bar should have its inside regularly rinsed with fresh water. Both metals last longest when oxygen is available on the surface. Do not stow the anchor in damp conditions or persistent contact with water-absorbent materials such as cordage or accumulated soil. Stowage should be as dry as possible, permit air circulation around the anchor, and allow drainage of any water. Replacement genuine Rocna Anchors labels can be sent to you free of charge upon request.

maintaining the zinc coating and re-galvanizing
(galvanized models only)

A high-quality hot-dipped galvanized coating protects the steel anchor. Failure to maintain galvanizing leads to corrosion of the underlying steel which if neglected may result in irreparable damage. Unfortunately, zinc eventually wears off with normal use and must be renewed by a galvanizing provider.

Rocna Original only: the breather hole on the roll bar allows the molten zinc to drain during the galvanizing process. Instruct the galvanizer accordingly.

maintaining the polished stainless steel finish
(stainless models only)

We finish stainless steel anchors with a process called “passivation” to help prevent rust.  During passivation a protective chromium oxide layer forms on the surface.  This layer is durable and usually self-healing, but it may be physically or chemically damaged.

• Strictly avoid any contact with regular steel or rust. Rusty particles can contaminate the stainless steel and rust spots may develop.
• Keep the anchor free from organic materials; when anchoring in brackish water, the risk of corrosion will increase through sediment, microorganisms, and biofouling.
• The anchor’s smooth surface finish is important. In the event of light scratching, use a stainless steel polish to restore. Avoid the use of any cleaners with chlorine or ammonia. In the event of deeper scratches or damage caused by rocks or coral, re-passivation of the area may be required. Several products contain citric, oxalic, or phosphoric acid which are effective at cleaning and passivation:
  • e. g. Spotless Stainless™, Grunt Emer-Gel™, Wichinox, or Davis FSR™. Clean the anchor well and follow the manufacturer’s instructions.

The Rocna Fisherman Variant
(4 kg / 9 lb & 6 kg / 13 lb only)

A float shackled to the dedicated retrieval line attachment point at the heel of all Rocna anchor flukes is the ideal recovery system, offering the best chance of a successful recovery in the event of a fouled anchor.

However, the shackle rail™ system of the Rocna Fisherman offers convenience with automated recovery. This variant of the Rocna may be used in either of two distinct modes, as the shackle rail™ is complemented by a secure point that allows normal safe anchoring when the recovery functionality is not required.

Usage in foul ground
If you believe the anchor is at risk of becoming stuck on the seabed, attach the rope to the shackle rail™ slot. A stainless steel shackle is recommended. This mode should not be used overnight or if the boat is to be left unattended. To retrieve if fouled, move the vessel over the anchor with reduced scope (2:1 is recommended), and pull the anchor backward. The shackle will slide to the other end of the slot, an improved point from which to pull the anchor clear.

Secure anchoring
Shackle to the secure point overnight or when the vessel is left unattended. This will prevent an unintentional un-setting of the anchor in the event of a wind or tide reversal.

Lifetime Manufacturer’s Warranty Against Defects

Good for the lifetime of the original purchaser and non-transferable.

In plain English: The lifetime warranty applies only to the original purchaser. This is because the history of the anchor becomes difficult to determine once it is second or third-hand, and it may have been damaged and repaired at some point, so it becomes weakened.

Coverage
Rocna warrants that the product will be free from material defects and failure of material and workmanship from the date you purchase the product. This includes coverage for any bending or deformation of the anchor, provided the anchor was sized appropriately for the boat based on the official Rocna sizing chart as published by us and up-to-date at the time of selection. For anchors larger than 110 kg where Rocna does not provide sizing recommendations selection should be based on classification society rules as appropriate and as referenced by us.

In plain English : Many other anchor manufacturers limit their coverage to “breakage under normal use”. Rocna believes in the rugged strength of our design and covers not only breakage but bending as well.

Exclusions
Coverage does not include:

• Faults and damage caused by using the anchor outside of the Product Specifications and/or the User’s Guide;
• Faults and damage resulting from general wear-and-tear;
• Faults and damage where modifications to the anchor have been undertaken by any third party not authorized by us;
• Faults and damage caused by failure of any accessory not approved by us;
• Faults and damage caused by product maintenance and repair services by any third party not authorized by us;
• Faults and the repair of damage to property (including the anchor), and personal injury arising from the act, error, fault, neglect, misuse or omission of any user of the anchor;
• Repair of damage to property (including the anchor), and personal injury due to external causes, including accident, abuse, misuse, and failure to perform preventative maintenance and/or repairs;
• Repair of damage to property (including the anchor), and personal injury caused by the operation of the anchor other than by recommended operating procedures as set out in the User’s Guide or otherwise than by the directions or recommendations of the manufacturer.

In plain English: If you damage the anchor by way of misuse you cannot expect a replacement or your money back. Normal wear-and-tear and/or corrosion of the sacrificial zinc coating is not covered. You should read and understand all of the exclusions as they are important.

Honouring the Warranty
Where the anchors are faulty or damaged the reseller will replace the product if available, or if a replacement is not available, give you a full refund of the purchase price.

Warranty Claim Procedure
If you have a warranty claim, please download the Warranty Claim form at rocna.com/lifetime-warranty/, fill it out as fully as possible, and submit it to support@rocna.com. One of our customer service personnel will then be in touch to determine the best means to address your concerns.

Disclaimer
Your use of the products must be strictly in the User’s Guide so that the anchor is not used for any purpose for which it is not suitable. You shall solely be responsible for using all necessary skills and care in handling, storing, maintaining, and using the anchor. You acknowledge that we make no specific representation nor do we hold any liability to you as to the effectiveness of the anchor in climactic or inclement weather conditions or specific tidal situations. Any information about the anchor supplied by Rocna is provided for guidance only and nothing contained herein should be construed as a recommendation to use any particular product in the range of products. You shall make your determination as to its fitness or suitability for your purposes before use. The User’s Guide can be found on Rocna’s website Rocna.com.

Liability
Except as expressly provided for in this Warranty, Rocna’s liability to you whether in contract, tort or otherwise for any loss, damage or injury arising directly or indirectly from any defect in or non-compliance of the products or from any other breach of Rocna’s obligations under this Warranty shall not exceed an amount equivalent to the price invoiced by the reseller for the faulty products or the products giving rise to the claim. Rocna shall not be liable for any indirect or consequential injury or specific damage or loss of any kind whatsoever.

Local Consumer Law
Nothing in this Warranty affects your statutory rights under any consumer guarantees at law or other legislation applicable to the place of sale which may not be excluded or limited.

How to Contact Us

• Tel +1-604-940-2010
• E-mail : support@rocna.com

CMP Group Ltd. 7733 Progress Way, Delta, B.C. V4G 1A3, Canada

Visit us on the internet:
Rocna.com To learn more about using your Rocna or Vulcan anchor, please take a look at the Rocna Anchors Knowledge Base – a collection of information and material relating to anchors, accessories, and using them: kb.rocna.com/kb

Get to know
Peter Smith, designer and sailor, is better at his website: www.petersmith.net.nz

Disclaimer & Intellectual Property

The descriptions and guidelines shown in this literature should be used as a general reference only. For any further technical information please contact our Technical Service. The contents of this guide are based on the latest information available at the time of publication. CMP / Rocna Anchors assumes no responsibility for the accuracy of the information contained herein. Product specifications are subject to change without notice. Anchors are covered by one or more of patents: US8950352, NZ620976, NZ602454, NZ620973, CA2790598, CA2922499, CA2922515, GB2505931, GB2518531, GB2518530, and/or registered designs: EU 000390687, UK 90003906870001. The names “Rocna” and “Vulcan” are registered trademarks ® and the Rocna, “Kiwi-R”, and Vulcan logos, and other terms marked with ™ are trademarks of Rocna Anchors. All distributable media, including video, graphics, photography, and all copies printed or electronic are copyright © 2004–2023 Rocna Anchors.

All rights reserved.

References

• Rocna Knowledge Base
• PeterSmith.net.nz: anchors & anchoring, photos from Patagonia & Antarctica
• Home - Rocna Anchors

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