{"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\/fa\/product\/volvo-14524187-fan-pump-ec290b\/","title":{"rendered":"14524187 \u6db2\u538b\u98ce\u6247\u6cf5\uff0c\u9002\u7528\u4e8e\u6c83\u5c14\u6c83EC290B\u6316\u6398\u673a"},"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>\u9002\u7528\u6027\u4e0e\u8bc1\u636e<\/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>\u5728\u5de5\u4f5c\u6e29\u5ea6\u4e0b\u6d4b\u91cf\u6cf5\u51fa\u53e3\u6d41\u91cf\u548c\u538b\u529b\u3002.<\/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\/fa\/%e6%8c%96%e6%8e%98%e6%9c%ba%e6%b6%b2%e5%8e%8b%e9%a3%8e%e6%89%87%e6%b3%b5%e8%af%8a%e6%96%ad\/\">\u6db2\u538b\u98ce\u6247\u6cf5\u8bca\u65ad\u6307\u5357<\/a>, \u4e2d\uff0c\u9a6c\u8fbe\u4fa7\u6db5\u76d6\u4e8e <a href=\"https:\/\/www.hongtengdaparts.com\/fa\/%e6%8c%96%e6%8e%98%e6%9c%ba%e6%b6%b2%e5%8e%8b%e9%a3%8e%e6%89%87%e9%a9%ac%e8%be%be%e8%af%8a%e6%96%ad\/\">the fan motor diagnosis guide<\/a>.<\/p>\n<h2>\u5b89\u88c5\u4e0e\u8ba2\u8d2d<\/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\/fa\/product-category\/%d9%85%d9%88%d8%aa%d9%88%d8%b1-%d9%81%d9%86-%d9%87%db%8c%d8%af%d8%b1%d9%88%d9%84%db%8c%da%a9\/%e6%b2%83%e5%b0%94%e6%b2%83%e9%a3%8e%e6%89%87%e7%94%b5%e6%9c%ba\/\">\u6c83\u5c14\u6c83\u6db2\u538b\u98ce\u6247\u9a6c\u8fbe<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>\u96f6\u4ef6\uff1a<\/strong> 14524187 \u6c83\u5c14\u6c83EC290B\u6316\u6398\u673a\u6db2\u538b\u98ce\u6247\u6cf5\u3002\u6c83\u5c14\u6c83\u96f6\u4ef6\u76ee\u5f55\u5c06\u8be5\u7f16\u53f7\u7684\u7269\u54c1\u540d\u79f0\u8bb0\u5f55\u4e3a\u9f7f\u8f6e\u6cf5\uff0c\u7ecf\u9500\u5546\u96f6\u4ef6\u6570\u636e\u5c06\u5176\u5f52\u5165\u51b7\u5374\u56de\u8def\u3002.<\/p>\n<p><strong>\u4f9b\u8d27\u5f62\u5f0f\uff1a<\/strong> \u5168\u65b0HTD\u54c1\u724c\u66ff\u6362\u4ef6\uff0c\u4e2d\u56fd\u5236\u9020\u3002\u8d77\u8ba2\u91cf1\u4ef6\uff0c\u6728\u7bb1\u5305\u88c5\uff0c5\u81f38\u4e2a\u5de5\u4f5c\u65e5\u5185\u53d1\u8d27\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\/fa\/wp-json\/wp\/v2\/product\/4782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/media\/4734"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/media?parent=4782"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/product_brand?post=4782"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/product_cat?post=4782"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/fa\/wp-json\/wp\/v2\/product_tag?post=4782"}],"curies":[{"name":"\u0648\u06cc\u200c\u067e\u06cc","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}