{"title":"Max-Prop Classic 3 Blade — Installation \u0026 Removal Instructions","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\"\u003eINSTALLATION MANUAL\u003c\/span\u003e\u003cp class=\"om-lead\"\u003ePitch setting, assembly, feathering technique, greasing, troubleshooting and removal for the Max-Prop Classic 3 Blade feathering propeller.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eMax-Prop Classic 3 Blade Installation \u0026amp; Removal Instructions\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\u003cdetails class=\"om-dd\"\u003e\u003csummary class=\"om-btn dl\"\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\/summary\u003e\u003cdiv class=\"om-dd-menu\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Max-Prop-Classic-3-Blade-Installation-Manual.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003csmall\u003ePDF · 12 p.\u003c\/small\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Max-Prop-Classic-3-Blade-Removal-Instructions.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eRemoval instructions\u003c\/span\u003e\u003csmall\u003ePDF · 1 p.\u003c\/small\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#om-pitch\"\u003ePitch Setting\u003c\/a\u003e\u003ca href=\"#om-assy\"\u003eAssembly\u003c\/a\u003e\u003ca href=\"#om-use\"\u003eFeathering\u003c\/a\u003e\u003ca href=\"#om-service\"\u003eMaintenance\u003c\/a\u003e\u003ca href=\"#om-trouble\"\u003eTroubleshooting\u003c\/a\u003e\u003ca href=\"#om-remove\"\u003eRemoval\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\/Max-Prop-Classic-3-Blade-Installation-Manual-Cover.png\" alt=\"Max-Prop Classic 3 Blade — Installation \u0026amp; Removal Instructions\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-pitch\"\u003e\n\u003ch2 class=\"om-h\"\u003ePitch Setting\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePitch is adjustable from 10 – 30 degrees of blade angle, set with the propeller mounted on the shaft.\u003c\/li\u003e\n\u003cli\u003eFind your diameter column, go down to the pitch in inches you want, and read the blade angle across (Fig. 1).\u003c\/li\u003e\n\u003cli\u003eEngine short of the desired RPM: reduce the blade angle. Over-revving: increase it.\u003c\/li\u003e\n\u003cli\u003eA two degree change in blade angle changes engine RPM by 13% – 15% at the same boat speed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-assy\"\u003e\n\u003ch2 class=\"om-h\"\u003eAssembly\u003c\/h2\u003e\n\u003cp\u003eEach propeller is individually balanced: never swap parts between propellers. Numbers refer to Fig. 2.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Max-Prop-Classic-3-Blade-Parts-Fig2.png\" alt=\"Max-Prop Classic 3 Blade parts (Fig. 2)\" style=\"width:100%;height:auto;border:1px solid #e3e5e8;border-radius:6px;margin:0\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHub (1) must slide fully onto the shaft (2); file the key (3) if it stops short of your mark.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrilled nut:\u003c\/b\u003e tighten the nut (4) and pin it by drilling through nut and shaft. \u003cb\u003eNo-drill nut:\u003c\/b\u003e align the grooves with the hub, insert and rotate the pins (5) clear of the cone gear.\u003c\/li\u003e\n\u003cli\u003eNo more than one thread exposed aft of the nut; cut off any excess or it raises the central cone gear (6).\u003c\/li\u003e\n\u003cli\u003eThe grooved tooth on the central gear is the \"X\": seat it in the hub letter given by Fig. 3.\u003c\/li\u003e\n\u003cli\u003eFill both spinner (7) halves with sea-water grease (Lubraplate \"130 AA\"), close them round the hub. Do not use Teflon grease.\u003c\/li\u003e\n\u003cli\u003eTurn the spinner until its \"Y\" drill mark lines up with the cone-gear letter from Fig. 4. Mark spinner and hub so any rotation shows.\u003c\/li\u003e\n\u003cli\u003eFit the blades on the spacer (10) pins, grease the end cap (11), slide on with blades feathered (rounded trailing edges aft) and numbers matching 1-1, 2-2, 3-3.\u003c\/li\u003e\n\u003cli\u003eBed the parts with a plastic or wooden mallet; lock each screw with a 1\/16\" stainless cotter pin cut to 1\/4\".\u003c\/li\u003e\n\u003cli\u003eProtect with zinc anodes on the shaft and on the end cap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"om-grid2\"\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eFig. 3 – X setting\u003c\/h3\u003e\n\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3 class=\"om-h3\"\u003eFig. 4 – Y setting\u003c\/h3\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block om-grid2\" id=\"om-use\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eFeathering\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower at 2 to 3 knots in forward.\u003c\/li\u003e\n\u003cli\u003eKill the engine while still in forward.\u003c\/li\u003e\n\u003cli\u003eIf the shaft still spins, engage reverse to stop it.\u003c\/li\u003e\n\u003cli\u003eCheck: out of gear, a feathered prop does not let the shaft freewheel.\u003c\/li\u003e\n\u003cli\u003eDo not stop the engine in reverse: the blades stay in reverse pitch and will not feather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"om-h\"\u003eImportant\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOn boats that can sail over 15 knots, the transmission MUST be in neutral while sailing.\u003c\/li\u003e\n\u003cli\u003eIdle down and shift at low RPM between forward and reverse to avoid shock to the gears.\u003c\/li\u003e\n\u003cli\u003eKeep the body completely filled with a very fluid grease.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-service\"\u003e\n\u003ch2 class=\"om-h\"\u003eMaintenance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRegrease at least once every two years with Lubraplate \"130 AA\".\u003c\/li\u003e\n\u003cli\u003eRemove the forward set screw with a #3 metric Allen wrench, fit the zerc tower and pump until grease shows between hub (1) and spinner (7). Repeat at the aft hole until grease shows between blades and spinner.\u003c\/li\u003e\n\u003cli\u003eRotate the propeller from forward to reverse with each pump. Never leave the zerc tower in.\u003c\/li\u003e\n\u003cli\u003eReplace the zinc anodes at least once a year, cleaning the contact faces with a wire brush or fine sandpaper.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-trouble\"\u003e\n\u003ch2 class=\"om-h\"\u003eTroubleshooting\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStiff rotation: remove some grease from the spinner and reassemble.\u003c\/li\u003e\n\u003cli\u003eHard spots (burr or ding): reassemble without the central cone gear (6). If the hub is hard, remove 0.01 mm from surfaces \"A\"; if the blades are hard, remove 0.01 mm from surfaces \"B\" of the spacer.\u003c\/li\u003e\n\u003cli\u003eRefit the cone gear. If hard points remain, remove 0.1 mm from surface (C) so the gear sits lower.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-remove\"\u003e\n\u003ch2 class=\"om-h\"\u003eRemoval\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFeather the blades and mark spinner and hub.\u003c\/li\u003e\n\u003cli\u003eRemove the zinc and the 6 end cap bolts; slide the end cap and blades off together.\u003c\/li\u003e\n\u003cli\u003eNote the cone-gear letter at the \"Y\" drill mark (record as Y).\u003c\/li\u003e\n\u003cli\u003eRemove the four spinner bolts and the spinner halves. Do not remove the central cone gear yet.\u003c\/li\u003e\n\u003cli\u003eMark cone gear to hub, then read the hub letter at the cone-gear punch mark (record as X). Remove the cone gear.\u003c\/li\u003e\n\u003cli\u003eRemove the nut pins, back the nut off one turn (leave it on), and pull the hub with a puller bearing only on the outside of the hub.\u003c\/li\u003e\n\u003c\/ul\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":"mxp-lu-130","title":"Max-Prop Propellers - Grease (Lubriplate #130-AA)","description":"\u003cp\u003eMax-Props should be greased once a year. This can be done in or out of the water. If the boat is in the water year round you should have a diver in the water at least once a year check anodes; they can grease the propeller at that time. Or, if the boat is hauled every year, it is easy to grease it while it is out of the water. We recommend Lubriplate 130 AA grease.\u003c\/p\u003e\u003cp\u003eOur Part # MXP-LU-130 | Max-Prop Part # LU-130\u003c\/p\u003e","brand":"Max-Prop","offers":[{"title":"Default Title","offer_id":49347485827378,"sku":"MXP-LU-130","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/MXP-LU-130.jpg?v=1728063918"},{"product_id":"mxp-mp-grk-it","title":"Max-Prop Propellers - Grease Kit","description":"\u003cp\u003eMax-Props should be greased once a year. This can be done in or out of the water. If the boat is in the water year-round you should have a diver in the water at least once a year check anodes; they can grease the propeller at that time. Or, if the boat is hauled every year, it is easy to grease it while it is out of the water. We recommend Lubriplate 130 AA grease.\u003c\/p\u003e\u003cp\u003eOur Part # MXP-MP-GRK-IT | Max-Prop Part # MP-GRKIT\u003c\/p\u003e","brand":"Max-Prop","offers":[{"title":"Default Title","offer_id":49347557851442,"sku":"MXP-MP-GRK-IT","price":61.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/MXP-MP-GRK-IT.jpg?v=1728059181"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/collections\/Max-Prop-Classic-3-Blade-Installation-Manual-Cover.png?v=1791398305","url":"https:\/\/www.mauripro.com\/collections\/owners-manuals-max-prop-classic-3-blade.oembed","provider":"MAURIPRO Sailing","version":"1.0","type":"link"}