{"id":20854,"date":"2025-11-13T13:45:54","date_gmt":"2025-11-13T13:45:54","guid":{"rendered":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-18-installation-manual-90672-2-s-n-18-234-2475-to-current-copy\/cover-page\/"},"modified":"2026-01-07T18:43:21","modified_gmt":"2026-01-07T18:43:21","slug":"cover-page","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-18-installation-manual-90672-3-s-n-18-254-2135-to-current\/cover-page\/","title":{"rendered":"1.0  Introduction"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2094\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Seakeeper-18.png\" alt=\"\" class=\"wp-image-16987\" style=\"width:500px;height:undefinedpx\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Seakeeper-18.png 2560w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Seakeeper-18-768x628.png 768w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Seakeeper-18-1536x1256.png 1536w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Seakeeper-18-2048x1675.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1492\" height=\"220\" src=\"https:\/\/manuals.seakeeper.com\/wp-content\/uploads\/SK18-Label.png\" alt=\"\" class=\"wp-image-9451\" style=\"width:442px;height:64px\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-Label.png 1492w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-Label-768x113.png 768w\" sizes=\"auto, (max-width: 1492px) 100vw, 1492px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center has-normal-font-size\">This manual applies to <span translate=\"no\">Seakeeper<\/span> 18 models with serial no. 18-254-2135 to current.<br>(This manual also covers serial numbers 18-2105, 18-2121, &amp; 18-2134).<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<p>Reference Documents<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.seakeeper.com\/technical-library\/?type=&amp;product=seakeeper-16,seakeeper-18,seakeeper-12-HD&amp;search=90667\">90667 &#8211; <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 Hardware Scope of Supply<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1.1  Precautions<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 must only be lifted from the supplied lifting eyes (See Section 1.4), shown in Figure 1.<\/li>\n\n\n\n<li>The <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> flywheel is supported by precision bearings.&nbsp; DO NOT drop or impart mechanical shock to the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> assembly while lifting or unpacking, as damage to bearings could result.<\/li>\n\n\n\n<li>While handling \/ installing the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> assembly, protect exposed hydraulic brake cylinder rods (See Figure 1) from scratches or damage as this could lead to premature seal failure and oil leaks.<\/li>\n\n\n\n<li>While handling \/ installing the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> assembly, do not allow electrical fittings that exit the bottom of the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> enclosure to contact any surface or object as this could damage the fittings and potentially affect the vacuum integrity of the enclosure.<\/li>\n\n\n\n<li>Exercise care to protect the painted surfaces as damage to the finish could lead to early appearance degradation of the installed <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span>.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"1685\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-IM-Fig-1-3000x1685.png\" alt=\"\" class=\"wp-image-16194\" style=\"width:651px;height:365px\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-IM-Fig-1-3000x1685.png 3000w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-IM-Fig-1-768x431.png 768w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-IM-Fig-1-1536x863.png 1536w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-IM-Fig-1-2048x1151.png 2048w\" sizes=\"auto, (max-width: 3000px) 100vw, 3000px\" \/><figcaption class=\"wp-element-caption\"><strong>Figure 1 &#8211; <\/strong><em><span translate=\"no\">Seakeeper<\/span> 18<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1.1.1 Safety<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1681\" height=\"380\" src=\"https:\/\/manuals.seakeeper.com\/wp-content\/uploads\/Warnings-2.png\" alt=\"\" class=\"wp-image-9472\" style=\"width:420px;height:95px\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2.png 1681w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2-768x174.png 768w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/Warnings-2-1536x347.png 1536w\" sizes=\"auto, (max-width: 1681px) 100vw, 1681px\" \/><\/figure>\n<\/div>\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\"><strong>There is a large torque about the gimbal axis when the <span translate=\"no\">Seakeeper<\/span> is precessing. <span translate=\"no\">Seakeeper<\/span> cover panels are provided to prevent personnel or equipment from contacting the <span translate=\"no\">Seakeeper<\/span> while it is in operation. These covers should not be stepped on, or have anything placed on top. The covers should always be in place during operation. <\/strong><\/mark><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\"><strong>If it is ever necessary to access the <span translate=\"no\">Seakeeper<\/span> while the flywheel is spinning, the <span translate=\"no\">Seakeeper<\/span> must be locked at the display to stop the <span translate=\"no\">Seakeeper<\/span> from precessing. <\/strong><\/mark><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">Stand clear of the <span translate=\"no\">Seakeeper<\/span> and all moving parts<\/mark> when operating.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>The unit may be started remotely. Assume it could move without warning.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">The <span translate=\"no\">Seakeeper<\/span> and related structure should be treated with the same respect one gives a high-speed rotating propeller or engine shaft.<\/mark><\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center\">__________________________________________________________________________________________________<\/p>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><strong>The following must be true before accessing the <span translate=\"no\">Seakeeper<\/span>:<br>     * Input power must be disconnected for at least 10 minutes<br>     * The <span translate=\"no\">Seakeeper<\/span> must be locked<br>     * The flywheel must be at zero speed<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1.2  Transport and Unpacking<\/h3>\n\n\n\n<p>Reference Documents<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.seakeeper.com\/technical-library\/?type=&amp;product=seakeeper-16,seakeeper-18,seakeeper-12-HD&amp;search=90324\" target=\"_blank\" rel=\"noreferrer noopener\">90324 &#8211; <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 Unpacking Instructions<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.seakeeper.com\/technical-library\/?type=&amp;product=&amp;search=90541\" target=\"_blank\" rel=\"noreferrer noopener\">90541 &#8211; <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 Packing List<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.seakeeper.com\/technical-library\/?type=&amp;product=&amp;search=90667\" target=\"_blank\" rel=\"noreferrer noopener\">90667 &#8211; <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 Hardware Scope of Supply<\/a><br><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">1.2.1 Transport<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Use a <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> provided shipping crate for transport. Overall dimensions of a fully packed crate are<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\"> 52 L x 53 W x 47 H in. (1.32 L x 1.35 W x 1.19 H m)<\/mark> with a weight of 2<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">,650 lbs (1,202 kg)<\/mark>.<\/li>\n\n\n\n<li>Do not stack <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> shipping crates.<\/li>\n\n\n\n<li>Both Air and Ground transport are acceptable.<\/li>\n\n\n\n<li><span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> shipping crates must be transported in environmental conditions between -4\u00b0F and 140\u00b0F (-20\u00b0C and 60\u00b0C).<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">1.2.2 Unpacking<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Reference <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> Drawing 90667 &#8211; <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 Hardware Scope of Supply for items that ship with the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span>. <\/li>\n\n\n\n<li>Remove electrical components, display, cables, and misc. items and set aside.<\/li>\n\n\n\n<li>Remove packing materials that secure <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> assembly inside the crate.<\/li>\n\n\n\n<li>Remove top and angled face cover panels to access lifting eyes.<\/li>\n\n\n\n<li>Attach spreader bar (<span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> P\/N 80061 or 81638) to the two lifting eyes located on the top of the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> enclosure.&nbsp; Stay clear of any other parts on the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span>. The <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> 18 weighs 2,460 lbs (1,116 kg). See Figure 1 below.<\/li>\n\n\n\n<li>Only when ready to install in vessel, remove lag bolts from the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> foundation and prepare to lift the <span translate=\"no\"><span translate=\"no\">Seakeeper<\/span><\/span> from the crate.<\/li>\n<\/ol>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"905\" src=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-with-80061-lift-bar.png\" alt=\"\" class=\"wp-image-20910\" style=\"object-fit:cover;width:406px;height:325px\" srcset=\"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-with-80061-lift-bar.png 1280w, https:\/\/manuals.seakeeper.com\/seakeeper\/wp-content\/uploads\/SK18-with-80061-lift-bar-768x543.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption class=\"wp-element-caption\"><em><strong>Figure 2 &#8211; <\/strong>Lifting Arrangement with P\/N 80061<\/em><\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>This manual applies to Seakeeper 18 models with serial no. 18-254-2135 to current.(This manual also covers serial numbers 18-2105, 18-2121, &amp; 18-2134). Reference Documents 1.1 Precautions 1.1.1 Safety There is a large torque about the gimbal axis when the Seakeeper is precessing. Seakeeper cover panels are provided to prevent personnel or equipment from contacting the [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":20853,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[369],"model":[],"document_type":[],"hidden":[],"class_list":["post-20854","page","type-page","status-publish","hentry","manual-seakeeper-18-installation-manual-90672-3-s-n-18-254-2135-to-current"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/comments?post=20854"}],"version-history":[{"count":5,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20854\/revisions"}],"predecessor-version":[{"id":21262,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20854\/revisions\/21262"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/20853"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/media?parent=20854"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/manual?post=20854"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/model?post=20854"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/document_type?post=20854"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/hidden?post=20854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}