{"id":4782,"date":"2026-10-27T04:57:27","date_gmt":"2026-10-27T04:57:27","guid":{"rendered":"https:\/\/www.hongtengdaparts.com\/product\/volvo-14524187-fan-pump-ec290b\/"},"modified":"2026-10-27T04:57:27","modified_gmt":"2026-10-27T04:57:27","slug":"volvo-14524187-fan-pump-ec290b","status":"publish","type":"product","link":"https:\/\/www.hongtengdaparts.com\/ja\/product\/volvo-14524187-fan-pump-ec290b\/","title":{"rendered":"Volvo EC290B\u6cb9\u5727\u30b7\u30e7\u30d9\u30eb\u752814524187\u6cb9\u5727\u30d5\u30a1\u30f3\u30dd\u30f3\u30d7"},"content":{"rendered":"<p>On a 29 tonne Volvo excavator the fan drive is a gear pump, which is good news for reliability and bad news for subtlety. A gear pump has no regulator to blame and no control to adjust. It delivers a volume proportional to engine speed, minus whatever it is leaking internally. When it wears, the loss is direct and measurable.<\/p>\n<h2>\u9069\u5408\u6027\u3068\u6839\u62e0<\/h2>\n<p>Volvo EC290B excavator. Volvo&#8217;s parts catalogue lists the item name as Gear Pump, and dealer parts data describes its role as supplying the hydraulic cooling circuit that drives the fan. Volvo does not publish a displacement, pressure or flow figure for this number, so none is quoted here; confirm against the plate on your pump.<\/p>\n<h2>What a fan pump does on a Volvo excavator<\/h2>\n<p>Volvo&#8217;s published description of its loader cooling system applies to the principle behind this component: the fan is hydraulically driven, it regulates component temperature, and on current machines it can be automatically reversed to self-clean the cooling units. On an excavator the same idea appears as a fan pump feeding a fan motor, and the pair is the only thing standing between a hot day and a derated machine.<\/p>\n<p>Three things kill these pumps, and none of them is the pump&#8217;s own design:<\/p>\n<ul>\n<li><strong>Contamination.<\/strong> Gear tips and side plates score easily, and the fan circuit is usually the last place a workshop thinks to flush.<\/li>\n<li><strong>Heat.<\/strong> A machine already running hot thins the oil, which increases internal leakage, which reduces airflow, which increases heat. It is a loop, and it accelerates.<\/li>\n<li><strong>Starvation.<\/strong> A blocked suction strainer or a collapsed hose liner makes a healthy pump noise, wear, and then fail, and the replacement inherits the same restriction unless it is cleared.<\/li>\n<\/ul>\n<h2>Diagnosis order before you order a pump<\/h2>\n<ol>\n<li>Clean the radiator and oil cooler cores, then re-measure temperatures at low and high idle.<\/li>\n<li>Confirm the fan motor turns freely with the hoses disconnected.<\/li>\n<li>Measure pump outlet flow and pressure at working temperature.<\/li>\n<li>Check the suction line, the tank filter and the oil level.<\/li>\n<li>Only then replace the pump, and change the filter element as part of the job.<\/li>\n<\/ol>\n<p>The written procedures are in our <a href=\"https:\/\/www.hongtengdaparts.com\/ja\/%e6%b2%b9%e5%9c%a7%e3%82%b7%e3%83%a7%e3%83%99%e3%83%ab%e7%94%a8%e6%b2%b9%e5%9c%a7%e3%83%95%e3%82%a1%e3%83%b3%e3%83%9d%e3%83%b3%e3%83%97%e3%81%ae%e8%a8%ba%e6%96%ad\/\">\u6cb9\u5727\u30d5\u30a1\u30f3\u30dd\u30f3\u30d7\u8a3a\u65ad\u30ac\u30a4\u30c9<\/a>, \u3001\u30e2\u30fc\u30bf\u30fc\u5074\u306f\u3053\u3061\u3089\u3067\u6271\u3063\u3066\u3044\u307e\u3059 <a href=\"https:\/\/www.hongtengdaparts.com\/ja\/%e6%b2%b9%e5%9c%a7%e3%82%b7%e3%83%a7%e3%83%99%e3%83%ab%e3%81%ae%e6%b2%b9%e5%9c%a7%e3%83%95%e3%82%a1%e3%83%b3%e3%83%a2%e3%83%bc%e3%82%bf%e3%83%bc%e8%a8%ba%e6%96%ad\/\">the fan motor diagnosis guide<\/a>.<\/p>\n<h2>\u53d6\u4ed8\u3068\u6ce8\u6587<\/h2>\n<p>Match shaft spline or taper, pilot diameter, flange bolt pattern, port positions and rotation direction against the removed pump; gear pumps are direction-sensitive and a reversed unit will destroy itself on first start. Prime with clean oil before cranking, change the return filter element, and target ISO 4406 18\/16\/13 for the piston components sharing the circuit. Minimum order one piece. Three to six month warranty on new aftermarket units as stated on your proforma invoice; bench checked and photographed against your order before the wooden case closes, delivery 5 to 8 working days from payment subject to stock. The EC330B and EC360 fan pumps are listed alongside this page under <a href=\"https:\/\/www.hongtengdaparts.com\/ja\/product-category\/%e6%b2%b9%e5%9c%a7%e3%83%95%e3%82%a1%e3%83%b3%e3%83%a2%e3%83%bc%e3%82%bf%e3%83%bc\/%e3%83%9c%e3%83%ab%e3%83%9c-%e3%83%95%e3%82%a1%e3%83%b3%e3%83%a2%e3%83%bc%e3%82%bf%e3%83%bc\/\">Volvo hydraulic fan motor<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>\u90e8\u54c1\uff1a<\/strong> 14524187 \u30dc\u30eb\u30dc EC290B \u6cb9\u5727\u30b7\u30e7\u30d9\u30eb\u7528\u6cb9\u5727\u30d5\u30a1\u30f3\u30dd\u30f3\u30d7\u3002\u30dc\u30eb\u30dc\u306e\u90e8\u54c1\u30ab\u30bf\u30ed\u30b0\u3067\u306f\u3053\u306e\u756a\u53f7\u306e\u54c1\u540d\u3092\u30ae\u30e4\u30dd\u30f3\u30d7\u3068\u3057\u3066\u8a18\u9332\u3057\u3066\u304a\u308a\u3001\u30c7\u30a3\u30fc\u30e9\u30fc\u306e\u90e8\u54c1\u30c7\u30fc\u30bf\u3067\u306f\u51b7\u5374\u56de\u8def\u306b\u5206\u985e\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n<p><strong>\u4f9b\u7d66\u5f62\u614b\uff1a<\/strong> HTD\u30d6\u30e9\u30f3\u30c9\u306e\u65b0\u54c1\u4ee3\u66ff\u54c1\u3001\u4e2d\u56fd\u88fd\u3002MOQ 1\u500b\u3001\u6728\u7bb1\u68b1\u5305\u3001\u51fa\u83775\uff5e8\u55b6\u696d\u65e5\u3002.<\/p>","protected":false},"featured_media":4734,"template":"","meta":[],"product_brand":[],"product_cat":[848,37],"product_tag":[867,794,555,167,868],"class_list":["post-4782","product","type-product","status-publish","has-post-thumbnail","product_cat-volvo-fan-motor","product_cat-hydraulic-fan-motor","product_tag-867","product_tag-excavator","product_tag-fan-pump","product_tag-gear-pump","product_tag-volvo-ec290b","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/product\/4782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/media\/4734"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/media?parent=4782"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/product_brand?post=4782"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/product_cat?post=4782"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/ja\/wp-json\/wp\/v2\/product_tag?post=4782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}