{"title":"Selden Mast Jack — Owner's Manual","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/om-manual-v2.css\"\u003e\u003cstyle\u003e.mpom .om-tbl.nw td+td{white-space:nowrap}.mpom details.om-dd{position:relative;margin:0}.mpom details.om-dd\u003esummary{list-style:none;cursor:pointer}.mpom details.om-dd\u003esummary::-webkit-details-marker{display:none}.mpom .om-dd-menu{position:absolute;left:0;top:calc(100% + 6px);min-width:100%;width:max-content;max-width:360px;background:#fff;border:1px solid #e3e5e8;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.14);z-index:30;padding:6px}.mpom .om-dd-menu a{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:10px 12px;border-radius:4px;font-size:14px;font-weight:600;color:#2a2b2a!important;text-decoration:none!important}.mpom .om-dd-menu a:hover{background:#f5f6f8}.mpom .om-dd-menu small{font-weight:400;color:#5f6368;white-space:nowrap}\u003c\/style\u003e\u003cdiv class=\"mpom\"\u003e\n\u003cdiv class=\"om-head\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"om-tag\"\u003eOWNER'S MANUAL\u003c\/span\u003e\u003cp class=\"om-lead\"\u003eInstalling the Selden integrated mast jack (D63\/400, D80\/400, D80\/500) in the mast heel, fitting the mast base and tie rod, shimming and tuning, releasing and resetting rig tension, and the pressure-to-load tables.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eSelden Mast Jack Owner's Manual\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eFormat\u003c\/span\u003e\u003cb\u003ePDF · 12 pages · 1.2 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\u003ca class=\"om-btn dl\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Selden-Mast-Jack-Owners-Manual.pdf\" 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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#om-specs\"\u003eSystems\u003c\/a\u003e\u003ca href=\"#om-heel\"\u003eMast Heel\u003c\/a\u003e\u003ca href=\"#om-base\"\u003eMast Base \u0026amp; Tie Rod\u003c\/a\u003e\u003ca href=\"#om-tune\"\u003eStepping \u0026amp; Tuning\u003c\/a\u003e\u003ca href=\"#om-operate\"\u003eRig Tension\u003c\/a\u003e\u003ca href=\"#om-tables\"\u003eLoad Tables\u003c\/a\u003e\u003ca href=\"#om-products\"\u003eProducts\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\/SEL533-022-10.jpg?v=1787840390\" alt=\"Selden Mast Jack — Owner's Manual\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-specs\"\u003e\n\u003ch2 class=\"om-h\"\u003eMast Jack Systems\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003cth\u003eMast sections\u003c\/th\u003e\n\u003cth\u003eMax load\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD63\/400 (cyl. Ø 63 mm)\u003c\/td\u003e\n\u003ctd\u003eCC210, C211, CC226, C227, CC244, C245\u003c\/td\u003e\n\u003ctd\u003e125 kN (~12,5 tons) at 400 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD80\/400 (cyl. Ø 80 mm)\u003c\/td\u003e\n\u003ctd\u003eCC263, C264, F265, CC285, C285, F286, CC303, C304, F305\u003c\/td\u003e\n\u003ctd\u003e200 kN (~20 tons) at 400 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD80\/500 (cyl. Ø 80 mm)\u003c\/td\u003e\n\u003ctd\u003eCC303 (heavy duty option 502-195-13)\u003c\/td\u003e\n\u003ctd\u003e250 kN (~25 tons), max 500 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eKit: mast jack assembly (heel), hose garage, hand pump, tie rod assembly, mast base assembly, heel insulator (carbon masts only).\u003c\/li\u003e\n\u003cli\u003eSame height (keelson to edge of mast tube) as a standard heel plus standard adjustable mast base.\u003c\/li\u003e\n\u003cli\u003eThe pump is factory set to 500 bar; D63\/400 and D80\/400 components are designed for max 400 bar. A separate instruction comes with the pump. All quick couplings are leakage-free.\u003c\/li\u003e\n\u003cli\u003eOn furling masts the sail-compartment (middle) wall must be cut for the cylinder – contact Selden.\u003c\/li\u003e\n\u003cli\u003eTwo people are needed for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"om-note\"\u003eHigh loads – keep clear. Watch the rig to avoid over-tensioning: lowers and intermediates must be slack before pumping up the mast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-heel\"\u003e\n\u003ch2 class=\"om-h\"\u003eReplacing the Mast Heel\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eTools:\u003c\/b\u003e drill, drill bits Ø 6.5 mm and Ø 4.9-5.0 mm, hole saw Ø 28-29 mm, compass saw (C211 only), fine half-round file, pop rivet gun, Torx T30, M6 tap and tap wrench, locking adhesive (Loctite 639), silicone spray.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRemove the old heel (drill out the rivets with a 6.5 mm bit).\u003c\/li\u003e\n\u003cli\u003eCut the cable and hose exits; grind the edges.\u003c\/li\u003e\n\u003cli\u003eCarbon masts: replace the old heel insulator with the new one supplied.\u003c\/li\u003e\n\u003cli\u003eCut away ~100mm of the cable conduit with a compass saw without damaging the cables.\u003c\/li\u003e\n\u003cli\u003eC211: also cut off ~100 mm of the conduit track in the mast section.\u003c\/li\u003e\n\u003cli\u003eFeed all electric cables out through the new cable exit (not the hose exit).\u003c\/li\u003e\n\u003cli\u003eInsert the mast jack assembly, push the heel up \/ forward tight against the mast (no gap) and drill-mark the new fastener holes.\u003c\/li\u003e\n\u003cli\u003eRemove the assembly; drill Ø 4.9-5.0 mm and tap M6.\u003c\/li\u003e\n\u003cli\u003eRefit the assembly and lead the hose out through the hose-garage exit without trapping cables.\u003c\/li\u003e\n\u003cli\u003eIf using the hose garage, fit it (steps 12-16) before fastening the heel.\u003c\/li\u003e\n\u003cli\u003eClean out chips and fasten the assembly with screws and plenty of locking adhesive against corrosion.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 class=\"om-h3\"\u003eHose garage\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUse the garage as a template and mark the holes, then drill 6.5 mm; insulating lacquer on contact surfaces.\u003c\/li\u003e\n\u003cli\u003eDrill hole #1, fit a pop rivet to hold the garage, drill hole #2, rivet, and so on for all four holes.\u003c\/li\u003e\n\u003cli\u003eSpray the hose with silicone so it slides inside the mast.\u003c\/li\u003e\n\u003cli\u003eFeed the hose in and out of the exit hole, holding the heel close so the hose forms a bend inside the mast.\u003c\/li\u003e\n\u003cli\u003eRivet the garage inside the mast; the hose must enter the garage from above and slide freely.\u003c\/li\u003e\n\u003cli\u003eClean out chips and fasten the heel with screws and locking adhesive.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-base\"\u003e\n\u003ch2 class=\"om-h\"\u003eMast Base \u0026amp; Tie Rod\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMast base:\u003c\/b\u003e remove the old base, fit the new one with the supplied washers and screws and lock it with the two grub screws. To move it, release the grub screws then the four fasteners – usually not possible once the mast is up. Tie rod bracket 508-309 needs the aft U-bolt; a mast leash needs the forward U-bolt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTie rod bracket 508-309\u003c\/b\u003e (ref. drawing PS718; tools: Vernier caliper, 90° countersink, file or grinding pin, Torx T40, drill bits Ø 6.0-6.5 and Ø 9 mm, drill jig, Loctite 639): file ~30 mm of the pad shelf flush with the deck ring; drill two Ø 6 mm holes at c\/c 20 mm (from inside the deck ring with the jig); open to Ø 9 mm; countersink for the MFT M8 heads; fit with the supplied MFT screws (short one upper) and locking adhesive; both screws should just pass through the bracket. Trim the aft deck-ring pads if needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTie rod (bracket 508-308):\u003c\/b\u003e fork terminal to the bracket with the clevis-pin head towards the mast (tape fork and pin head to protect the mast); rigging screw to the aft U-bolt in the mast base; take up the slack before pumping the mast up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMast section\u003c\/th\u003e\n\u003cth\u003eDeck ring\u003c\/th\u003e\n\u003cth\u003eHole location A (mm)\u003c\/th\u003e\n\u003cth\u003eDrill jig\u003c\/th\u003e\n\u003cth\u003eUpper screw\u003c\/th\u003e\n\u003cth\u003eLower screw\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCC210, C211, CC226, C22 (as printed)\u003c\/td\u003e\n\u003ctd\u003e533-022\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e529-119-01\u003c\/td\u003e\n\u003ctd\u003eMFT 8x11\u003c\/td\u003e\n\u003ctd\u003eMFT 8x20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCC244, C245, CC263, C264, F265\u003c\/td\u003e\n\u003ctd\u003e533-023\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e529-119-01\u003c\/td\u003e\n\u003ctd\u003eMFT 8x11\u003c\/td\u003e\n\u003ctd\u003eMFT 8x20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCC285, C285, F286, CC303, C304, F305\u003c\/td\u003e\n\u003ctd\u003e533-024\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e529-120-01\u003c\/td\u003e\n\u003ctd\u003eMFT 8x16\u003c\/td\u003e\n\u003ctd\u003eMFT 8x20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eThe tools list names the drill jig 592-119\/120-01, table 1 gives 529-119-01 \/ 529-120-01 (as printed).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-tune\"\u003e\n\u003ch2 class=\"om-h\"\u003eStepping, Tuning \u0026amp; Leash\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMast section\u003c\/th\u003e\n\u003cth\u003eTotal shim height (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC211, CC210\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC227, CC226\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC245, CC244\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC264, F265, CC263\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC285, F286, CC284\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC304, F305, CC303\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFit the correct shims before stepping, thickest shims on top, secured with the supplied locking pins.\u003c\/li\u003e\n\u003cli\u003eSilicone (or Teflon) spray on the mast only – never on the deck ring or the wedge faces against the deck ring – so the mast slides on the pads.\u003c\/li\u003e\n\u003cli\u003eKeep cables and hose clear when stepping. Tune as normal (see Selden Hints and Advice): max pre-tension 25% of wire breaking strength, with all shims in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeash\u003c\/b\u003e (some ocean racing rules): shackle to the forward mast-base U-bolt; with the mast tuned for racing (max shims) stretch it, mark the holes on the front of the mast and allow at least 5 mm extra rise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block om-grid2\" id=\"om-operate\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eReleasing Rig Tension\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eKeep clear of moving parts at keelson and deck; remove the mast coat if needed; check the deck-ring pads slide on the mast (spray if needed).\u003c\/li\u003e\n\u003cli\u003ePump valve open (wheel counter-clockwise) before connecting.\u003c\/li\u003e\n\u003cli\u003ePush the quick couplings together; lock by turning the ring on the pump's female coupling.\u003c\/li\u003e\n\u003cli\u003eClose the valve (clockwise).\u003c\/li\u003e\n\u003cli\u003ePump the mast up just enough to remove the shims.\u003c\/li\u003e\n\u003cli\u003eRemove the shims you want.\u003c\/li\u003e\n\u003cli\u003eRelease pressure carefully and slowly (wheel counter-clockwise).\u003c\/li\u003e\n\u003cli\u003eOpen the valve before disconnecting the pump.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eResetting Rig Tension\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eSame precautions; valve open, connect and lock the coupling, close the valve.\u003c\/li\u003e\n\u003cli\u003ePump the mast up just enough to insert the shims – thickest on top.\u003c\/li\u003e\n\u003cli\u003eSecure the shims with the supplied pins.\u003c\/li\u003e\n\u003cli\u003eRelease pressure slowly until the mast rests on the shims.\u003c\/li\u003e\n\u003cli\u003eOpen the valve before disconnecting; refit the mast coat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-tables\"\u003e\n\u003ch2 class=\"om-h\"\u003ePressure → Load\u003c\/h2\u003e\n\u003cdiv class=\"om-grid2\"\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eD63\/400\u003c\/h3\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure (bar)\u003c\/th\u003e\n\u003cth\u003eLoad (kN)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e63\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e220\u003c\/td\u003e\n\u003ctd\u003e69\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e81\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e280\u003c\/td\u003e\n\u003ctd\u003e88\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e94\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e340\u003c\/td\u003e\n\u003ctd\u003e106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e360\u003c\/td\u003e\n\u003ctd\u003e113\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e380\u003c\/td\u003e\n\u003ctd\u003e119\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eD80\/500\u003c\/h3\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure (bar)\u003c\/th\u003e\n\u003cth\u003eLoad (kN)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e280\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e360\u003c\/td\u003e\n\u003ctd\u003e180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e440\u003c\/td\u003e\n\u003ctd\u003e220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e480\u003c\/td\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eLoad → pressure tables are also printed in the manual and on top of the hand pump.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eNeed a part that isn't listed? \u003ca href=\"\/pages\/contact\"\u003eAsk us to source it\u003c\/a\u003e and quote the part number from the PDF.\u003c\/p\u003e\n\u003ch2 class=\"om-h\" id=\"om-products\"\u003eProducts in this Manual\u003c\/h2\u003e\n\u003c\/div\u003e","products":[{"product_id":"selden-deck-ring-c211-227-mast-jack","title":"Selden DECK RING C211\/227, MAST JACK","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-022 with mast sections C211 and C227 and their carbon equivalents CC210 and CC226. Weight 4.57 kg (10.08 lb).\u003c\/p\u003e\u003cp\u003eSeldén lists two mast jack deck rings for these sections. This is the plain one; 533-022-13 carries the \"(2\" marker Seldén uses elsewhere in this range for the two-piece block shaft. If your deck layout is too narrow for a one-piece shaft, check 533-022-13 before ordering.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-022-10 | Mfr. Part # 533-022-10\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021266226,"sku":"SEL533-022-10","price":1100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-022-10.jpg?v=1787840390"},{"product_id":"selden-deck-ring-c211-227-mast-jck-2","title":"Selden DECK RING C211\/227,MAST JCK (2","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-022 with mast sections C211 and C227 and their carbon equivalents CC210 and CC226. Weight 4.53 kg (9.99 lb).\u003c\/p\u003e\u003cp\u003eSeldén's part description for this one ends in \"(2\", the same marker used on the two-piece block shaft version of every other deck ring in this range. The plain mast jack ring for the same sections is 533-022-10.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-022-13 | Mfr. Part # 533-022-13\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021298994,"sku":"SEL533-022-13","price":1190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-022-13.jpg?v=1787840401"},{"product_id":"selden-deck-ring-c245-264-mast-jack","title":"Selden DECK RING C245\/264, MAST JACK","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-023 with mast sections C245, C264 and F265 and their carbon equivalents CC244 and CC263. Weight 6.07 kg (13.38 lb).\u003c\/p\u003e\u003cp\u003eSeldén lists two mast jack deck rings for these sections. This is the plain one; 533-023-13 carries the \"(2\" marker Seldén uses elsewhere in this range for the two-piece block shaft. If your deck layout is too narrow for a one-piece shaft, check 533-023-13 before ordering.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-023-10 | Mfr. Part # 533-023-10\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021462834,"sku":"SEL533-023-10","price":1280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-023-10.jpg?v=1787840431"},{"product_id":"selden-deck-ring-c245-264-mast-jck-2","title":"Selden DECK RING C245\/264,MAST JCK (2","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-023 with mast sections C245, C264 and F265 and their carbon equivalents CC244 and CC263. Weight 6.07 kg (13.38 lb).\u003c\/p\u003e\u003cp\u003eSeldén's part description for this one ends in \"(2\", the same marker used on the two-piece block shaft version of every other deck ring in this range. The plain mast jack ring for the same sections is 533-023-10.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-023-13 | Mfr. Part # 533-023-13\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021495602,"sku":"SEL533-023-13","price":1300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-023-13.jpg?v=1787840441"},{"product_id":"selden-deck-ring-c285-304-mast-jck","title":"Selden DECK RING C285\/304,MAST JCK","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-024 with mast sections C285, F286, C304 and F305 and their carbon equivalents CC285 and CC303. Weight 7.65 kg (16.87 lb).\u003c\/p\u003e\u003cp\u003eSeldén lists two mast jack deck rings for these sections. This is the plain one; 533-024-13 carries the \"(2\" marker Seldén uses elsewhere in this range for the two-piece block shaft. If your deck layout is too narrow for a one-piece shaft, check 533-024-13 before ordering.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-024-10 | Mfr. Part # 533-024-10\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021626674,"sku":"SEL533-024-10","price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-024-10.jpg?v=1787840486"},{"product_id":"selden-deck-ring-c285-304-mast-jck-2","title":"Selden DECK RING C285\/304,MAST JCK (2","description":"\u003cp\u003eOn a keel-stepped mast the deck ring is the collar at deck level that holds the mast where it passes through the deck. Seldén's deck ring locks the mast with shaped rubber wedges, seals the opening, and takes a tie rod so that halyard loads pull on the tie rod instead of lifting the deck.\u003c\/p\u003e\u003cp\u003eThis is the deck ring for boats fitted with Seldén's hydraulic mast jack, which lifts the mast from inside to set rig tension. Seldén's mast jack manual pairs deck ring 533-024 with mast sections C285, F286, C304 and F305 and their carbon equivalents CC285 and CC303. Weight 7.65 kg (16.87 lb).\u003c\/p\u003e\u003cp\u003eSeldén's part description for this one ends in \"(2\", the same marker used on the two-piece block shaft version of every other deck ring in this range. The plain mast jack ring for the same sections is 533-024-10.\u003c\/p\u003e\u003cp\u003eOur Part # SEL533-024-13 | Mfr. Part # 533-024-13\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":51565021659442,"sku":"SEL533-024-13","price":1460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/SEL533-024-13.jpg?v=1787840497"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/collections\/SEL533-022-10.jpg?v=1792517682","url":"https:\/\/www.mauripro.com\/collections\/owners-manuals-selden-mast-jack.oembed","provider":"MAURIPRO Sailing","version":"1.0","type":"link"}