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
Volvo EC290B excavator. Volvo’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
Volvo’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
Three things kill these pumps, and none of them is the pump’s own design:<\/p>\n
The written procedures are in our guia de diagn\u00f3stico de bomba hidr\u00e1ulica do ventilador<\/a>, and the motor side is covered in the fan motor diagnosis guide<\/a>.<\/p>\n 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 Volvo hydraulic fan motor<\/a>.<\/p>","protected":false},"excerpt":{"rendered":" Pe\u00e7a:<\/strong> 14524187 hydraulic fan pump for the Volvo EC290B excavator. Volvo’s parts catalogue records the item name as Gear Pump for this number, and dealer parts data places it in the cooling circuit.<\/p>\n Fornecida como:<\/strong> substitui\u00e7\u00e3o nova da marca HTD, fabricada na China. MOQ 1 pe\u00e7a, caixa de madeira, despacho em 5 a 8 dias \u00fateis.<\/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\/pt\/wp-json\/wp\/v2\/product\/4782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/media\/4734"}],"wp:attachment":[{"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/media?parent=4782"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/product_brand?post=4782"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/product_cat?post=4782"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.hongtengdaparts.com\/pt\/wp-json\/wp\/v2\/product_tag?post=4782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Montagem e encomenda<\/h2>\n