{"title":"Harken MKIV Unit 2 Jib Furler — Installation Manual","description":"\u003cstyle\u003e\n.mpom{--ink:#2a2b2a;--muted:#5f6368;--line:#e3e5e8;--soft:#f5f6f8;--navy:#0f1f3a;--navy2:#1b3358;--or:#ff9f1c;--blue:#1f6fb2;color:var(--ink);font-size:15px;line-height:1.55;max-width:100%}\n.mpom *{box-sizing:border-box}\n.mpom p{margin:0 0 10px}\n.mpom .om-tag{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px;letter-spacing:.3px;background:#e8f1fb;color:#1c5f93;margin:0 0 10px}\n.mpom .om-tag.ss{background:#eef7ee;color:#1e6b33}\n.mpom .om-head{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:stretch;margin:4px 0 30px}\n.mpom .om-lead{color:var(--muted);margin:0 0 16px}\n.mpom .om-box{border:1px solid var(--line);border-radius:6px;padding:16px 18px;background:var(--soft)}\n.mpom .om-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:5px 0;border-bottom:1px dashed var(--line)}\n.mpom .om-row b{text-align:right}\n.mpom .om-acts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}\n.mpom .om-btn{display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:4px;font-weight:600;font-size:14px;text-decoration:none!important;border:1.5px solid #151515}\n.mpom .om-btn.dl{background:#474747;border-color:#474747;color:#fff!important}\n.mpom .om-btn.buy{background:#ffae45;border-color:#ffae45;color:#2a2b2a!important}\n.mpom .om-btn svg{width:17px;height:17px}\n.mpom .om-toc{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 0}\n.mpom .om-toc a{font-size:13px;font-weight:600;padding:7px 12px;border-radius:4px;background:var(--soft);border:1px solid var(--line);text-decoration:none!important;color:var(--ink)!important}\n.mpom .om-toc a:hover{border-color:var(--blue)}\n.mpom .om-img{border:1px solid var(--line);border-radius:6px;background:#fff;position:relative;min-height:240px}\n.mpom .om-img img{position:absolute;inset:16px;width:calc(100% - 32px);height:calc(100% - 32px);max-width:none;object-fit:contain;margin:0}\n.mpom .om-block{margin:0 0 34px;scroll-margin-top:90px}\n.mpom h2.om-h{font-size:21px;margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid var(--ink);text-transform:none;letter-spacing:0}\n.mpom h3.om-h3{font-size:15px;margin:0 0 6px}\n.mpom ul{margin:0 0 10px;padding-left:20px}\n.mpom .om-tbl{overflow-x:auto;border:1px solid var(--line);border-radius:6px;margin:0 0 10px}\n.mpom .om-tbl table{width:100%;border-collapse:collapse;font-size:13.5px;margin:0;border:0}\n.mpom .om-tbl th,.mpom .om-tbl td{padding:9px 10px;border:0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;background:#fff}\n.mpom .om-tbl th{background:var(--soft);font-weight:700;font-size:12.5px;text-transform:uppercase;letter-spacing:.3px}\n.mpom .num{white-space:nowrap}\n.mpom .om-shop{font-weight:600;color:var(--blue)!important;text-decoration:none!important;white-space:nowrap}\n.mpom .om-ask{color:var(--muted)!important;font-size:12.5px;font-weight:600;white-space:nowrap;text-decoration:underline!important;text-underline-offset:3px}.mpom .om-ask:hover{color:var(--ink)!important}\n.mpom .om-grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}\n.mpom .om-note{background:var(--soft);border-left:4px solid var(--or);padding:12px 14px;border-radius:4px;font-size:14px;margin-top:18px!important}\n.mpom .om-hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border-radius:6px;padding:26px 28px;margin:4px 0 26px}\n.mpom .om-hero p{color:rgba(255,255,255,.88);margin:0;max-width:820px}\n.mpom h2.om-sec{font-size:20px;margin:0 0 4px;border:0;padding:0}\n.mpom .om-docs{display:grid;grid-template-columns:1fr 1fr;gap:16px}\n.mpom .om-doc{display:flex;gap:16px;border:1px solid var(--line);border-radius:6px;padding:16px;background:#fff}\n.mpom .om-doc .th{width:96px;min-width:96px;height:96px;border:1px solid var(--line);border-radius:4px;display:flex;align-items:center;justify-content:center;background:#fff}\n.mpom .om-doc .th img{max-width:88%;max-height:88%;margin:0}\n.mpom .om-doc h3{font-size:16px;margin:2px 0 4px}\n.mpom .om-doc .meta{font-size:12.5px;color:var(--muted);margin-bottom:10px}\n.mpom .om-doc .acts{display:flex;gap:8px;flex-wrap:wrap}\n.mpom .om-doc .acts a{height:36px;padding:0 14px;font-size:13px}\n.mpom .om-read{background:#ff9f1c;color:#fff!important;border-color:#ff9f1c!important;text-transform:uppercase;font-weight:700}\n@media (max-width:900px){.mpom .om-head,.mpom .om-grid2,.mpom .om-docs{grid-template-columns:1fr}.mpom .om-img{min-height:260px}}\n\u003c\/style\u003e\u003cdiv class=\"mpom\"\u003e\n\u003cdiv class=\"om-head\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"om-tag\"\u003eINSTALLATION MANUAL\u003c\/span\u003e\n\u003cp class=\"om-lead\"\u003eSizing, toggles, sailmaker's dimensions, foil assembly, commissioning, operation, maintenance and troubleshooting for the MKIV Jib Reefing \u0026amp; Furling Unit 2, with the drum parts list.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eHarken MKIV Unit 2 manual, v1 08\/21\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eFormat\u003c\/span\u003e\u003cb\u003ePDF · 36 pages · 5.8 MB\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\" style=\"border-bottom:0\"\u003e\n\u003cspan\u003eLanguage\u003c\/span\u003e\u003cb\u003eEnglish\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-acts\"\u003e\n\u003ca class=\"om-btn dl\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Harken-MKIV-Unit-2-Furler-Installation-Manual.pdf?v=1790891404\" target=\"_blank\" rel=\"noopener\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 4v11\"\u003e\u003c\/path\u003e\u003cpath d=\"m7 10 5 5 5-5\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 20h14\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Download PDF\u003c\/a\u003e\u003ca class=\"om-btn buy\" href=\"\/products\/har741210\"\u003eBuy\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#mk-size\"\u003eSizing\u003c\/a\u003e\u003ca href=\"#mk-sail\"\u003eSailmaker\u003c\/a\u003e\u003ca href=\"#mk-parts\"\u003eParts\u003c\/a\u003e\u003ca href=\"#mk-service\"\u003eMaintenance\u003c\/a\u003e\u003ca href=\"#mk-trouble\"\u003eTroubleshooting\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR741210.jpg?v=1747147883\" alt=\"Harken MKIV Unit 2 jib furler\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"mk-size\"\u003e\n\u003ch2 class=\"om-h\"\u003eSizing Check\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003cth\u003eWire sizes\u003c\/th\u003e\n\u003cth\u003eRod sizes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e7412.10 MKIV Unit 2\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16\", 3\/8\" · 8 mm, 10 mm\u003c\/td\u003e\n\u003ctd\u003e-12, -17 · 7.14 mm, 8.38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 class=\"om-h3\" style=\"margin-top:14px\"\u003eToggles (sold separately)\u003c\/h3\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eChainplate clevis pin\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7412.20 5\/8\u003c\/td\u003e\n\u003ctd\u003eEye \/ jaw reversible\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e5\/8\" · 15.9 mm\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har74122058\"\u003eView system →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7312.20 5\/8\u003c\/td\u003e\n\u003ctd\u003eJaw \/ jaw\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e5\/8\" · 15.9 mm\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7312.20 3\/4\u003c\/td\u003e\n\u003ctd\u003eStud \/ jaw\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e3\/4\" · 19.1 mm\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har73122034\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7312.21 5\/8\u003c\/td\u003e\n\u003ctd\u003eLong link plate w\/ toggle\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e5\/8\" · 15.9 mm\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har73122158\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7312.21 3\/4\u003c\/td\u003e\n\u003ctd\u003eLong link plate w\/ toggle\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e3\/4\" · 19.1 mm\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har73122134\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eNever drill the chainplate or toggle: use the correct toggle and clevis pin. Have a rigger check an old headstay before reusing it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block om-grid2\" id=\"mk-sail\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eSailmaker's Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLuff tape: #6 (6\/32\" \/ 5 mm).\u003c\/li\u003e\n\u003cli\u003eStop the luff tape 18–24\" (450–600 mm) below the head so the head lags and rolls smoothly.\u003c\/li\u003e\n\u003cli\u003eExtend the bottom of the luff tape below the feeder.\u003c\/li\u003e\n\u003cli\u003eMinimum inside of standard head and tack shackles: 1 3\/4\" (44 mm) × 11\/16\" (17 mm).\u003c\/li\u003e\n\u003cli\u003eNote tack setback and the offsets above and below the sail when cutting the luff.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eRod Rigging\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eThread\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7424 -12\u003c\/td\u003e\n\u003ctd\u003eRod adapter stud w\/ nosepiece -12\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e5\/8\"-18 RH\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har7424-12\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7425 -17\u003c\/td\u003e\n\u003ctd\u003eRod adapter stud w\/ nosepiece -17\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e3\/4\"-16 RH\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har7425-17\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7426 -22\u003c\/td\u003e\n\u003ctd\u003eRod adapter stud w\/ nosepiece -22\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e3\/4\"-16 LH\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har7426-22\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eRod rigging needs a Harken rod adapter stud with a mechanical lock, not adhesive alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"mk-parts\"\u003e\n\u003ch2 class=\"om-h\"\u003eStandard Package \u0026amp; Spares\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7412.31\u003c\/td\u003e\n\u003ctd\u003e9\" (229 mm) connector\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e7\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har741231\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7412.32\u003c\/td\u003e\n\u003ctd\u003e13\" (330 mm) bottom connector\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har741232\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG296\u003c\/td\u003e\n\u003ctd\u003eConnector bushing set\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg296\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG300\u003c\/td\u003e\n\u003ctd\u003ePlastic connector wedge set\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg300\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG348\u003c\/td\u003e\n\u003ctd\u003eFoil screw set\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg348\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG681\u003c\/td\u003e\n\u003ctd\u003eTrim cap set\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg681\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG672\u003c\/td\u003e\n\u003ctd\u003eTrim cap screw set\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg672\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eH-39559\u003c\/td\u003e\n\u003ctd\u003eFeeder with screw and tab\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harh-39559\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e947\u003c\/td\u003e\n\u003ctd\u003ePrefeeder\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e2117\u003c\/td\u003e\n\u003ctd\u003e8 mm bow shackle\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e3\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG292\u003c\/td\u003e\n\u003ctd\u003eDrum assembly with foil clamp\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eH-39794\u003c\/td\u003e\n\u003ctd\u003eHalyard swivel\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG235\u003c\/td\u003e\n\u003ctd\u003e7 mm single-braid polyester furling line, 70 ft (21.3 m)\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 class=\"om-h3\" style=\"margin-top:14px\"\u003eDrum Assembly Parts\u003c\/h3\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG689\u003c\/td\u003e\n\u003ctd\u003eTop cover assembly w\/ screws\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg689\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFS1060\u003c\/td\u003e\n\u003ctd\u003eTop cover \/ bottom flange screw M5 × 0.8 × 12\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e2\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfs1060\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG690\u003c\/td\u003e\n\u003ctd\u003eBottom flange assembly w\/ screws\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg690\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eH-35465C\u003c\/td\u003e\n\u003ctd\u003eBottom flange\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harh-35465c\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG691\u003c\/td\u003e\n\u003ctd\u003eGuard assembly\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg691\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFG697\u003c\/td\u003e\n\u003ctd\u003eClamp with screws\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfg697\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHFS747\u003c\/td\u003e\n\u003ctd\u003eClamp screw M6 × 1 × 16 SHCS\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e4\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harhfs747\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003e7412.10BASE\u003c\/td\u003e\n\u003ctd\u003eHub assembly\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har741210base\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eH-33860A\u003c\/td\u003e\n\u003ctd\u003eBall plugs\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e5\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/harh-33860a\"\u003eView part →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eMP-127\u003c\/td\u003e\n\u003ctd\u003eTorlon® ball bearing\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e25\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eMP-123\u003c\/td\u003e\n\u003ctd\u003eDelrin® ball bearing\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e100\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"num\"\u003eHCP1707\u003c\/td\u003e\n\u003ctd\u003eIGUS® crosspin bushing\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e2\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-ask\" href=\"\/pages\/contact\"\u003eAsk us to source it →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"margin-top:10px\"\u003e\u003ca class=\"om-shop\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Harken-MKIV-Unit-2-Furler-Parts-List.pdf?v=1790891404\" target=\"_blank\" rel=\"noopener\"\u003eDownload the full MKIV Unit 2 parts list (PDF) →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"mk-service\"\u003e\n\u003ch2 class=\"om-h\"\u003eMaintenance\u003c\/h2\u003e\n\u003cdiv class=\"om-grid2\"\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eClean\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlush the unit with soap and fresh water whenever you wash the boat.\u003c\/li\u003e\n\u003cli\u003eAt least twice a year: remove the line and flush the bearings.\u003c\/li\u003e\n\u003cli\u003eScrub foil grooves with a scrap of luff tape. Lubricate luff tapes with McLube® SailKote, away from the deck.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eInspect\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClevis and cotter pins below and inside the drum.\u003c\/li\u003e\n\u003cli\u003eHeadstay tension, swage fitting, toggle and terminals.\u003c\/li\u003e\n\u003cli\u003eAll screws, and that the foil has not dropped into the drum.\u003c\/li\u003e\n\u003cli\u003eReplace line: 8 mm with break strength above 1700 kg (3740 lb).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eLoosen the foil clamp and lower the foil before easing the backstay, so the foil does not lock against the upper terminal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"mk-trouble\"\u003e\n\u003ch2 class=\"om-h\"\u003eTroubleshooting\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProblem\u003c\/th\u003e\n\u003cth\u003eProbable cause\u003c\/th\u003e\n\u003cth\u003eFix\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHard to furl\u003c\/td\u003e\n\u003ctd\u003eHalyard wrapping: angle to mast too shallow or swivel too low\u003c\/td\u003e\n\u003ctd\u003eOptimize halyard angle; add a halyard restrainer or a wire pendant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHard to furl\u003c\/td\u003e\n\u003ctd\u003eFoils riding on the turnbuckle, or binding on the swage eye\u003c\/td\u003e\n\u003ctd\u003eRaise or lower the foils at the turnbuckle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHard to furl\u003c\/td\u003e\n\u003ctd\u003eSalt or dirt in the bearings\u003c\/td\u003e\n\u003ctd\u003eFlush with fresh water and detergent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine tangled in drum\u003c\/td\u003e\n\u003ctd\u003eNot enough drag while unfurling\u003c\/td\u003e\n\u003ctd\u003eUse a 7402 ratchet block as the last lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWill not furl completely\u003c\/td\u003e\n\u003ctd\u003eToo little or too much line on the drum\u003c\/td\u003e\n\u003ctd\u003eRewind the drum or move the forward lead block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFurls in jerks\u003c\/td\u003e\n\u003ctd\u003eHeadstay too slack\u003c\/td\u003e\n\u003ctd\u003eTighten headstay and\/or backstay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV cover rolls inside\u003c\/td\u003e\n\u003ctd\u003eLine wound on drum in the wrong direction\u003c\/td\u003e\n\u003ctd\u003eUnwind and rewind the line in the opposite direction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"om-h\" style=\"margin-top:10px\"\u003eProducts in this Manual\u003c\/h2\u003e\n\u003c\/div\u003e","products":[{"product_id":"harhfs1127","title":"Harken Extrusion Trim Cap Screw (Unit) for MKIV \u0026 MKIV Underdeck Unit 2 \/ Unit 3 Furlers","description":"\u003cp\u003eHarken Spare: Trim Cap Screw MKIV Unit 2,2E \u0026amp; Underdeck Unit 2,3\u003c\/p\u003e\u003cp\u003e Our Part # HARHFS1127 | Harken Part # HFS1127\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":49347414065458,"sku":"HARHFS1127","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HARHFS1127.jpg?v=1728055379"},{"product_id":"harhfs747","title":"Harken Drum Torque Tube Screws for MKIV Unit 2 Furlers","description":"\u003cp\u003eHarken Spare: Clamp Screw (M6 x 1 x 16MM SHCS)\u003c\/p\u003e\u003cp\u003e Our Part # HARHFS747 | Harken Part # HFS747\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":49347435331890,"sku":"HARHFS747","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HARHFS747.jpg?v=1728042282"},{"product_id":"harhfs336","title":"Harken Link Plate Allen Cap Screws (M8 x 16mm) for MKIV Unit 2 Furlers","description":"\u003cp\u003eHarken Spare: Allen Cap Screws (M8x1.25x16 A4 SHCS)\u003c\/p\u003e\u003cp\u003e Our Part # HARHFS336 | Harken Part # HFS336\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":49347459547442,"sku":"HARHFS336","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HARHFS336.jpg?v=1728051647"},{"product_id":"harhfs1129","title":"Harken Sail Feeder Screw for MKIV Unit 1 \/ Unit 2 Furlers","description":"\u003cp\u003eHarken Spare: Feeder Screw MKIV Unit 1-2-2E\u003c\/p\u003e\u003cp\u003e Our Part # HARHFS1129 | Harken Part # HFS1129\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":49347493265714,"sku":"HARHFS1129","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HARHFS1129.jpg?v=1728044134"},{"product_id":"har7303","title":"Harken Halyard Deflector for MKIV Unit 2 Furlers","description":"\u003cp\u003eThe halyard deflector prevents the jib halyard and other halyards (such as a spinnaker or additional jib halyards) from wrapping around the foil.\u003c\/p\u003e\u003cp\u003eUse with furling unit: 7322.10, 7412.10, 7412.11 5\/8\u003c\/p\u003e\u003cp\u003e Our Part # HAR7303 | Mfr. Part # 7303\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016335855922,"sku":"HAR7303","price":73.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR7303.jpg?v=1747147874"},{"product_id":"har73122034","title":"Harken Stud \/ Jaw Toggle (3\/4\" pin) for MKIV Unit 2 Furlers","description":"\u003cp\u003eHarken® toggle assembly accepts standard turnbuckle using swage, rod, Norseman®, or Sta-Lok® terminals. Toggle flips for fork or tang chainplate installation. A single stainless steel clevis pin provides access to the turnbuckle for adjustment. \n \u003c\/p\u003e\n \u003cp\u003eSta-Lok® is a registered trademark of Sta-Lok Terminals, Ltd.\u003c\/p\u003e\u003cp\u003e Our Part # HAR73122034 | Mfr. Part # 7312.20 3\/4\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016335921458,"sku":"HAR73122034","price":755.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR73122034.jpg?v=1747147871"},{"product_id":"har73122158","title":"Harken Long Link Plate w\/ Toggle (5\/8\") for MKIV Unit 2 Furlers","description":"\u003cp\u003eStainless steel link plates fit over standard turnbuckle, resist scratches, and can be easily repolished. Toggle flips for fork or tang chainplate installation. A single stainless steel clevis pin provides access to the turnbuckle for adjustment.\u003c\/p\u003e\u003cp\u003e Our Part # HAR73122158 | Mfr. Part # 7312.21 5\/8\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016335954226,"sku":"HAR73122158","price":425.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR73122158.jpg?v=1747147872"},{"product_id":"har73122134","title":"Harken Long Link Plate w\/ Toggle (3\/4\") for MKIV Unit 2 Furlers","description":"\u003cp\u003eStainless steel link plates fit over standard turnbuckle, resist scratches, and can be easily repolished. Toggle flips for fork or tang chainplate installation. A single stainless steel clevis pin provides access to the turnbuckle for adjustment.\u003c\/p\u003e\u003cp\u003e Our Part # HAR73122134 | Mfr. Part # 7312.21 3\/4\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016336281906,"sku":"HAR73122134","price":539.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR73122134.jpg?v=1747147874"},{"product_id":"har741210base","title":"Harken Tack Swivel Hub Assembly for MKIV Unit 2 Furlers","description":"\u003cp\u003e\u003cb\u003eHarken Furling Parts\u003c\/b\u003e\u003c\/p\u003e\n \u003cp\u003eHarken jib reefing and furling systems make all the difference in headsail control and allow racers and cruisers to furl and reef safely from the cockpit.\u003c\/p\u003e\u003cp\u003e Our Part # HAR741210BASE | Mfr. Part # 7412.10BASE\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016338903346,"sku":"HAR741210BASE","price":1530.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR741210BASE.jpg?v=1747147882"},{"product_id":"har741210","title":"Harken Jib Furling System - MKIV Unit 2 - Boat Size: 35.0 - 46.0 ft (10.6 - 14.2 m)","description":"\u003cp\u003eMKIV furling systems are strong, lightweight and aerodynamic, with the performance and features Harken ® is known for. Longevity, ease of use, and simplicity of installation are crucial components of the design.\u003c\/p\u003e\n\u003cp\u003e*Toggle and Lead Block Kit sold separately\u003c\/p\u003e\n\u003cp\u003eOur Part # HAR741210 | Mfr. Part # 7412.1\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016338936114,"sku":"HAR741210","price":5310.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR741210.jpg?v=1747147883"},{"product_id":"har741231","title":"Harken Extrusion Connector w\/ Bushings Set for MKIV Unit 2 Furlers","description":"\u003cp\u003eC-shaped open connectors with low-friction plastic isolators slip onto the headstay wire and into foil for easy installation.\u003c\/p\u003e\u003cp\u003e Our Part # HAR741231 | Mfr. Part # 7412.31\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016339001650,"sku":"HAR741231","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR741231.jpg?v=1747147882"},{"product_id":"har74122058","title":"Harken Jib Furling System - MKIV Unit 2 - Eye, Jaw Reversible Toggle - Boat Size: 35.0 - 46.0 ft (10.6 - 14.2 m)","description":"\u003cp\u003eThe Harken Jib Furling System - MKIV Unit 2 - Eye, Jaw Reversible Toggle #7412.20 5\/8 is designed to make your sailing experience smoother and more efficient. It features a reversible toggle that easily flips for fork or tang chainplate installation, ensuring versatile compatibility. Adjustments are made simple with a single stainless steel clevis pin, making this system both user-friendly and reliable.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eReversible toggle for flexible installation options\u003c\/li\u003e \u003cli\u003eCompatible with swage, rod, Norseman, or Sta-Lok terminals\u003c\/li\u003e \u003cli\u003eStainless steel clevis pin for easy adjustments\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThis jib furling system is compatible with boats sized 35.0 to 46.0 ft (10.6 to 14.2 m). It accepts standard turnbuckles and is crafted to work with a variety of terminal types, ensuring a perfect fit for your sailing needs. 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