{"product_id":"3eb-61-a7112-genuine-komatsu®-hydraulic-control-valve","title":"3EB-61-A7112 | Genuine Komatsu® Hydraulic Control Valve","description":"\u003cp\u003e\u003cstrong\u003eDescription: \u003c\/strong\u003eHydraulic Control Valve For Komatsu AX50 \/ BX50 Series Forklifts\u003cimg\u003e\u003cbr\u003e\u003cstrong\u003eCondition: \u003c\/strong\u003eNew \u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Komatsu® \u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3EB-61-A7112\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Compatible Equipment Families\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe \u003ccode data-path-to-node=\"4\" data-index-in-node=\"4\"\u003e3EB\u003c\/code\u003e part number prefix is unique to Komatsu’s material handling and industrial lifting engineering divisions. This specific control valve is engineered to regulate lifting, tilting, and auxiliary attachment functions, primarily fitting:\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eKomatsu AX50 \/ BX50 Series Forklifts:\u003c\/b\u003e Premium internal combustion (diesel, gasoline, and LPG) industrial forklifts with lifting capacities ranging from 1.5 to 3.5 tons.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eSpecific Models:\u003c\/b\u003e Frequently utilized on workhorse models like the \u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"66\"\u003eFG15\/18ST-20\u003c\/b\u003e, \u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"80\"\u003eFG25T-16\u003c\/b\u003e, \u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"90\"\u003eFD25T-16\u003c\/b\u003e, and \u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"104\"\u003eFG30HT-16\u003c\/b\u003e industrial warehouse trucks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Installation Location \u0026amp; System Role\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eThis valve block is mounted inside the main chassis belly, positioned beneath the operator floorboard or directly next to the mechanical control levers. It connects directly to the main hydraulic pump, receiving raw fluid volume and precisely dividing it between the primary mast lift cylinders, the forward\/backward tilt cylinders, and any side-shifter or bale-clamp attachments.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe HYDRAULIC CONTROL VALVE is an original equipment manufacturer (OEM) multi-spool directional hydraulic control block. It serves as the primary fluid distribution system on selected Komatsu internal combustion forklifts.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003e1. What is it?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eThis part is a high-pressure cast-iron valve block consisting of multiple precision-machined internal spools and micro-switches. When an operator pulls the mechanical levers inside the cabin, it physically shifts the internal spools inside this block, creating a direct path for the hydraulic fluid to flow under extreme pressure to the required component.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003e2. Core Functions\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eDirectional Fluid Routing:\u003c\/b\u003e It manages the essential movements of the forklift. Spool 1 controls the vertical mast lifting cylinders, Spool 2 regulates the tilt cylinders (forward\/backward angle), and auxiliary spools control optional hydraulic attachments like side-shifters or clamp mechanisms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003ePressure Management \u0026amp; Overload Safety:\u003c\/b\u003e It features an integrated primary main relief valve. If the operator tries to lift a load that exceeds the forklift's rated capacity, this internal safety valve opens to bypass the fluid back to the tank, preventing hydraulic lines from exploding or the mast from snapping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003ePrecise Speed Feathering:\u003c\/b\u003e The valve allows for proportional control (\"feathering\"), meaning the further the driver pulls a lever, the wider the valve opening becomes, allowing for millimeter-precise placement of heavy warehouse pallets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of Faulty\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cp data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003e1. Mast Drift (Spontaneous Dropping or Tilting)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eIf you lift a heavy pallet, release the controls, and watch the mast slowly sink downward or tilt forward on its own, the internal valve is failing. When the internal spools or check valve seals score and wear down, pressurized oil slowly bypasses the closed block, causing the cylinders to lose position under load.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003e2. Heavy Hydraulic Oil Leaks Around the Control Levers\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThe ends of the sliding spools are sealed with specialized rubber O-rings and dust boots. Due to years of continuous shifting and internal heat, these seals dry out and rupture. You will notice puddles of hydraulic oil pooling on the floorboards beneath the operator's control levers or streaming down the sides of the valve block assembly.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003e3. Stiff, Binding, or \"Stuck\" Control Levers\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eThe control levers should snap back to a neutral position smoothly when released. If a spool becomes bent from mechanical abuse, or if microscopic metal shavings lodge inside the bore tolerances, the levers will feel hard to pull, bind up, or remain stuck in the \"open\" position, causing dangerous uncontrolled mast movements.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003e4. Loss of Lifting Power or Slow Operational Speed\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eIf the forklift struggles to lift loads well within its rated capacity, or if the lifting speed slows down significantly while the engine revs up, the integrated main relief valve inside this block may be faulty. If its internal spring relaxes or breaks, the valve continuously bypasses pressurized oil straight back to the hydraulic tank instead of directing it to the mast.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003e5. Spongy, Jerky, or Erratic Mast Movements\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eWhen a control valve develops internal housing cracks or compromised seals, it can allow air to get sucked into the high-pressure circuits. This leads to a spongy feel in the levers, and the lifting mast will move with a dangerous shaking, shuddering, or jumping motion instead of a smooth, linear ascent.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer information\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eKomatsu\u003c\/strong\u003e® is a well-known Japanese company founded in 1921 that specializes in the production of heavy machinery, including fuel injection pumps. Its products are characterized by high reliability, advanced technologies and efficiency, which makes them popular in various industries. Komatsu® actively innovates, focusing on reducing the environmental impact of its products. Thanks to its experience and high quality standards, the company occupies a leading position in the world market.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003eFirst Truck Parts offers a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e365-days\u003c\/strong\u003e \u003cstrong\u003ewarranty\u003c\/strong\u003e on all types of parts and in any condition. The warranty only applies to buyers who place an order on our website.\u003c\/p\u003e","brand":"Komatsu®","offers":[{"title":"Default Title","offer_id":48845623558388,"sku":"3EB-61-A7112","price":2579.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1479\/5764\/files\/ftpcorobka_e0cf6fa7-3a59-4741-97bb-912ea5d194b4.jpg?v=1783703596","url":"https:\/\/firsttruckparts.com\/products\/3eb-61-a7112-genuine-komatsu%c2%ae-hydraulic-control-valve","provider":"First Truck Parts","version":"1.0","type":"link"}