{"id":15060,"date":"2026-10-29T09:23:03","date_gmt":"2026-10-29T01:23:03","guid":{"rendered":"https:\/\/www.lushyong.com\/?page_id=15060"},"modified":"2026-11-02T08:47:35","modified_gmt":"2026-11-02T00:47:35","slug":"common-agricultural-power-sprayer-pump-problems-causes-and-solutions","status":"publish","type":"page","link":"https:\/\/www.lushyong.com\/ru\/common-agricultural-power-sprayer-pump-problems-causes-and-solutions\/","title":{"rendered":"Common Agricultural Power Sprayer Pump Problems: Causes and Solutions"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"15060\" class=\"elementor elementor-15060\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9f2192d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9f2192d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-da3fc55\" data-id=\"da3fc55\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6f74ad5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6f74ad5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-159ce9b\" data-id=\"159ce9b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-867e45f elementor-widget elementor-widget-text-editor\" data-id=\"867e45f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #000080;\"><a href=\"https:\/\/www.lushyong.com\/ru\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000080;\">\u0414\u043e\u043c<\/span><\/a>\u00a0 <\/span>&gt; \u00a0<a href=\"https:\/\/www.lushyong.com\/ru\/\u0441\u043e\u0431\u044b\u0442\u0438\u0435\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000080;\">\u0420\u0435\u0441\u0443\u0440\u0441\u044b<\/span><\/a> \u00a0&gt;\u00a0 <a href=\"https:\/\/www.lushyong.com\/ru\/\u043d\u043e\u0432\u043e\u0441\u0442\u043d\u043e\u0439-\u0431\u043b\u043e\u0433\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #000080;\">\u041d\u043e\u0432\u043e\u0441\u0442\u0438 \u0438 \u0431\u043b\u043e\u0433\u00a0<\/span><\/a>\u00a0 &gt;\u00a0\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bf4c215 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bf4c215\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3610e8c\" data-id=\"3610e8c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5bbf649 elementor-widget elementor-widget-heading\" data-id=\"5bbf649\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Common Agricultural Power Sprayer Pump Problems: Causes and Solutions<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0d0101b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0d0101b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1ef8f27\" data-id=\"1ef8f27\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bec14b5 elementor-widget elementor-widget-text-editor\" data-id=\"bec14b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Agricultural power sprayer pumps\u00a0operate under demanding conditions, often handling water, pesticides, fertilizers, and other agricultural solutions for extended periods. Even a well-manufactured pump can eventually develop operating problems due to wear, improper system matching, blocked components, poor water quality, or incorrect operation.<\/p><p>When a problem occurs, replacing parts immediately is not always the best solution. Many symptoms can be traced to relatively simple issues such as insufficient water supply, trapped air, blocked filters, loose connections, or incorrect pressure adjustment.<\/p><p>For distributors, dealers, service technicians, and agricultural equipment users, a systematic troubleshooting process can reduce unnecessary repairs and help identify whether the problem comes from the pump itself or from another part of the spraying system.<\/p><p>Below are some of the most common agricultural power sprayer pump problems, their possible causes, and the first checks that should be made.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-630b2b8\" data-id=\"630b2b8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b25c50d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b25c50d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-cedaf23\" data-id=\"cedaf23\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-813959f elementor-widget elementor-widget-image\" data-id=\"813959f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?fit=1024%2C538&amp;ssl=1\" class=\"attachment-large size-large wp-image-15063\" alt=\"Agricultural power sprayer pump troubleshooting guide for pressure, leakage, and vibration\" srcset=\"https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?resize=300%2C158&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?resize=1024%2C538&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?resize=768%2C403&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-5.jpg?resize=18%2C9&amp;ssl=1 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5fdc4f4 elementor-widget elementor-widget-image\" data-id=\"5fdc4f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"538\" src=\"https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?fit=1024%2C538&amp;ssl=1\" class=\"attachment-large size-large wp-image-15062\" alt=\"LUSHYONG plunger pump seal and V-packing assembly diagram\" srcset=\"https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?resize=300%2C158&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?resize=1024%2C538&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?resize=768%2C403&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.lushyong.com\/wp-content\/uploads\/2026\/10\/5-4.jpg?resize=18%2C9&amp;ssl=1 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-845ac82 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"845ac82\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f6faca4\" data-id=\"f6faca4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-31c5939 elementor-widget elementor-widget-heading\" data-id=\"31c5939\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1. Water Leakage from the Pump<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc6e399 elementor-widget elementor-widget-text-editor\" data-id=\"bc6e399\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Water leakage is one of the most common problems reported in <span style=\"text-decoration: underline;\"><strong><span style=\"color: #3366ff; text-decoration: underline;\"><a style=\"color: #3366ff; text-decoration: underline;\" href=\"https:\/\/www.lushyong.com\/ru\/agricultural-pumps\/\">agricultural power sprayer pumps<\/a><\/span><\/strong><\/span>.<\/p><p>A frequent cause is wear of the V-packing seals around the plungers. Over time, continuous reciprocating movement gradually wears the packing. The process can be accelerated when the pump handles water containing sand, sediment, or pesticide solutions that have not been fully dissolved.<\/p><p><strong><b>What should you check?<\/b><\/strong><\/p><p>First, identify where the water is leaking.<\/p><p>If slight leakage occurs around the plunger area, check the packing adjustment. In some cases, particularly on a relatively new pump, properly tightening the packing pressure ring may correct the problem.<\/p><p>If leakage continues, inspect the V-packing for wear.<\/p><p>When replacing or adjusting the V-packing does not solve the problem, the plunger itself should also be inspected. A worn plunger surface can prevent new packing from sealing correctly.<\/p><p>For pumps using ceramic plungers, inspect the ceramic sleeve for cracks or damage.<\/p><p><strong><b>Recommended action:<\/b><\/strong>\u00a0Start with the packing adjustment and condition before replacing multiple components. Persistent leakage may require inspection of both the V-packing and plunger assembly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8c4cc5d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8c4cc5d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3e0a1c0\" data-id=\"3e0a1c0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-df85eed elementor-widget elementor-widget-heading\" data-id=\"df85eed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. The Pump Cannot Build Enough Pressure<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37795ba elementor-widget elementor-widget-text-editor\" data-id=\"37795ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Low pressure does not automatically mean that the pump itself is defective.<\/p><p>Agricultural spraying is a complete system. Water supply, hoses, pressure regulation, spray guns, nozzle size, pump capacity, engine speed, and other components can all affect operating pressure.<\/p><p><strong><b>Common causes include:<\/b><\/strong><\/p><ul><li>Incorrect pressure regulator adjustment<\/li><li>Insufficient water supply<\/li><li>A blocked inlet strainer<\/li><li>Air entering through the inlet hose or connections<\/li><li>Air trapped inside the pump<\/li><li>Worn V-packing or valve components<\/li><li>Excessive return flow<\/li><li>Oversized spray nozzles<\/li><li>Too many spray guns operating at the same time<\/li><li>Insufficient pump flow for the application<\/li><li>Insufficient engine power or operating speed<\/li><\/ul><p><strong><b>What should you check first?<\/b><\/strong><\/p><p>Begin with the simplest external checks.<\/p><p>Confirm that the pressure regulator is correctly adjusted. Then check whether the pump is receiving enough water and whether the inlet strainer is clean.<\/p><p>Inspect the inlet hose and connections for possible air leaks and make sure trapped air has been released from the system.<\/p><p>Next, observe the return flow. Abnormally high return flow may indicate wear in the return valve or valve seat.<\/p><p>Finally, confirm that the spray gun quantity and nozzle size are appropriate for the pump\u2019s flow capacity.<\/p><p><strong><b>A larger nozzle or additional spray guns increase flow demand. If total demand exceeds pump capacity, the system may not reach the expected pressure even when the pump is functioning normally.<\/b><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d488b7a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d488b7a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-64c80de\" data-id=\"64c80de\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-912c544 elementor-widget elementor-widget-heading\" data-id=\"912c544\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. Unstable Pressure or Pump Vibration<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-042203e elementor-widget elementor-widget-text-editor\" data-id=\"042203e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A pump that vibrates excessively or produces an unstable pressure reading often has a problem with water supply or valve operation.<\/p><p>One common cause is debris entering the valve assembly. Dirt, pesticide particles, or other contaminants can prevent a valve from opening and closing normally, disrupting water flow through the pump.<\/p><p><strong><b>Recommended troubleshooting sequence:<\/b><\/strong><\/p><ol><li>Check whether the inlet strainer is blocked.<\/li><li>Confirm that the water supply is sufficient.<\/li><li>Inspect the inlet hose for air leakage.<\/li><li>Make sure air has been properly released from the pump.<\/li><li>Check the valve assembly for debris or foreign material.<\/li><li>Inspect valve components for wear if cleaning does not solve the problem.<\/li><li>Check the V-packing and packing adjustment if leakage is also present.<\/li><\/ol><p>Avoid replacing major pump components before checking the water supply, filtration, and valve assembly. In many cases, pressure fluctuation begins with a relatively simple flow restriction or contamination issue.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-008f65e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"008f65e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5ef3aaf\" data-id=\"5ef3aaf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d05d571 elementor-widget elementor-widget-heading\" data-id=\"d05d571\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. The Pump Cannot Draw Water<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac741e4 elementor-widget elementor-widget-text-editor\" data-id=\"ac741e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>When an agricultural power sprayer pump cannot draw water, the first step is to inspect the suction side of the system.<\/p><p>Check whether the inlet hose is securely connected and whether the seals or O-rings inside the fittings are present and in good condition. A small air leak on the suction side can prevent the pump from drawing water correctly even when no obvious water leakage is visible.<\/p><p>Air trapped inside the pump can also interfere with initial water intake.<\/p><p><strong><b>What should you check?<\/b><\/strong><\/p><ul><li>Inlet hose connections<\/li><li>Seals and O-rings<\/li><li>Inlet strainer condition<\/li><li>Air trapped inside the pump<\/li><li>Suction at the pump inlet<\/li><li>V-packing condition<\/li><li>Valve assembly condition<\/li><\/ul><p>Where appropriate, release pressure and open the outlet side to help purge trapped air.<\/p><p>If the inlet system is properly sealed and the pump still cannot draw water, further inspection of the V-packing and valve assembly may be required.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ce18d92 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ce18d92\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d7d1216\" data-id=\"d7d1216\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-01cca43 elementor-widget elementor-widget-heading\" data-id=\"01cca43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5. Plunger Wear or Ceramic Plunger Damage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a38d3d elementor-widget elementor-widget-text-editor\" data-id=\"3a38d3d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The plunger is one of the key working components in a <span style=\"text-decoration: underline;\"><span style=\"color: #3366ff; text-decoration: underline;\"><strong><a style=\"color: #3366ff; text-decoration: underline;\" href=\"https:\/\/www.lushyong.com\/ru\/\u043f\u043b\u0443\u043d\u0436\u0435\u0440\u043d\u044b\u0439-\u043d\u0430\u0441\u043e\u0441\/\">triplex plunger pump<\/a><\/strong><\/span><\/span>.<\/p><p>Poor water quality can significantly accelerate plunger and seal wear. Sand, sediment, and undissolved pesticide particles may enter the working area around the packing and repeatedly contact the plunger during high-speed reciprocating movement.<\/p><p>Visible scratches or wear marks on the plunger surface can be an indication of this type of damage.<\/p><p>Typical symptoms may include:<\/p><ul><li>Increasing water leakage<\/li><li>Difficulty maintaining pressure<\/li><li>Repeated V-packing wear<\/li><\/ul><p>Ceramic plungers require additional attention. Dry running can generate excessive heat, and sudden contact with cooler liquid after the ceramic has become hot may contribute to cracking from thermal shock.<\/p><p>In cold climates, water remaining inside the pump can also freeze and damage ceramic components.<\/p><p><strong><b>Recommended action:<\/b><\/strong>\u00a0Use clean water where possible, make sure agricultural chemicals are properly dissolved or mixed, avoid dry running, and inspect the plunger whenever repeated packing replacement does not correct leakage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8647ebc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8647ebc\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0132c52\" data-id=\"0132c52\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a000b44 elementor-widget elementor-widget-heading\" data-id=\"a000b44\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">6. Milky or White Oil in the Crankcase<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9414246 elementor-widget elementor-widget-text-editor\" data-id=\"9414246\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Milky or white oil is an important warning sign.<\/p><p>It generally indicates that water has entered the crankcase and mixed with the lubricating oil, causing emulsification.<\/p><p>Possible causes include wear or damage involving the plunger oil seals, plungers, or ceramic sleeves.<\/p><p><strong><b>What should you do?<\/b><\/strong><\/p><p><strong><b>Stop operating the pump and inspect the cause before continuing to use it.<\/b><\/strong><\/p><p>Once water contaminates the lubricating oil, its ability to protect internal mechanical components can be significantly reduced. Continuing operation may increase the risk of damage to the crankshaft, connecting rods, bearings, and other internal components.<\/p><p>Simply replacing the oil without identifying the source of water entry does not solve the underlying problem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-463a885 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"463a885\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9ece0d8\" data-id=\"9ece0d8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a16ed6f elementor-widget elementor-widget-heading\" data-id=\"a16ed6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">7. Abnormal Noise or Excessive Heat<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd92f58 elementor-widget elementor-widget-text-editor\" data-id=\"fd92f58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Some mechanical noise and temperature increase are expected during pump operation, but a noticeable change from normal operating behavior should be investigated.<\/p><p>For abnormal noise, begin by checking:<\/p><ul><li><p>Whether the pump and engine or motor are securely mounted<\/p><\/li><li><p>Belt tension<\/p><\/li><li><p>Lubricating oil level<\/p><\/li><li><p>Bearing condition<\/p><\/li><li><p>Crankshaft and connecting rod condition<\/p><\/li><\/ul><p>For abnormal overheating, check the oil level, oil specification, lubrication condition, and whether the pump is operating under an appropriate load.<\/p><p>Do not rely only on external temperature as a diagnosis. Operating temperature can vary depending on pump model, ambient conditions, speed, load, and lubrication.<\/p><p>If the pump becomes abnormally hot or develops severe mechanical noise, stop operation and inspect the cause before restarting.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-77a73db elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"77a73db\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4272976\" data-id=\"4272976\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d30a8b elementor-widget elementor-widget-heading\" data-id=\"6d30a8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Not Every Spraying Problem Is a Pump Failure<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f35e3db elementor-widget elementor-widget-text-editor\" data-id=\"f35e3db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This is an important principle in agricultural sprayer troubleshooting.<br \/>A customer may report that a pump \u201chas no pressure\u201d or \u201cdoes not work properly,\u201d while the actual cause is elsewhere in the spraying system.<br \/>Possible external causes include:<\/p><ul><li><p>Blocked inlet strainers<\/p><\/li><li><p>Air leakage from hoses or fittings<\/p><\/li><li><p>Blocked spray nozzles<\/p><\/li><li><p>Incorrect nozzle sizes<\/p><\/li><li><p>Insufficient engine power<\/p><\/li><li><p>Incorrect operating speed<\/p><\/li><li><p>Improper pump sizing<\/p><\/li><li><p>System control problems<\/p><\/li><\/ul><p>For this reason, troubleshooting should evaluate the entire spraying system before concluding that the pump itself has failed.<br \/>In one field case handled by the LUSHYONG team, a customer using a smart irrigation system repeatedly reported difficulty building pressure. After systematic troubleshooting, the pump was found to be operating normally. The actual problem was traced to the customer\u2019s variable-frequency control system. Once the control issue was corrected, normal system operation was restored.<br \/>This type of case demonstrates why accurate diagnosis can prevent unnecessary pump replacement and reduce service costs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-90fcbf6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"90fcbf6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a07451b\" data-id=\"a07451b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1ced085 elementor-widget elementor-widget-heading\" data-id=\"1ced085\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">When Should You Stop the Pump and Seek Technical Support?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7228e3 elementor-widget elementor-widget-text-editor\" data-id=\"a7228e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Basic checks such as cleaning a strainer, inspecting hose connections, releasing trapped air, or checking pressure adjustment can often be performed without major disassembly.<\/p><p>However, continued operation is not recommended when there are signs of potentially serious internal problems, such as:<\/p><ul><li><p>Milky or emulsified crankcase oil<\/p><\/li><li><p>Abnormal overheating<\/p><\/li><li><p>Significant oil leakage<\/p><\/li><li><p>Severe mechanical noise<\/p><\/li><li><p>Suspected crankshaft, bearing, or connecting rod damage<\/p><\/li><li><p>Persistent leakage after packing and plunger inspection<\/p><\/li><\/ul><p>When the cause cannot be identified through basic troubleshooting, further disassembly should be performed by an experienced technician or service provider.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-43348e7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"43348e7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-997d1de\" data-id=\"997d1de\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d13f7e1 elementor-widget elementor-widget-heading\" data-id=\"d13f7e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A Systematic After-Sales Process Matters<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b2d80c elementor-widget elementor-widget-text-editor\" data-id=\"2b2d80c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>For distributors and OEM buyers, pump reliability is important\u2014but so is the manufacturer\u2019s ability to help diagnose problems when they occur.<\/p><p>At <strong><b>Zhejiang Lushyong Machinery Co., Ltd.<\/b><\/strong>, after-sales troubleshooting typically begins with identifying the pump and reviewing photos or videos of the reported problem. The service team then evaluates whether the issue is related to operation, system configuration, wear components, or the pump itself.<\/p><p>Depending on the diagnosis and the customer\u2019s service capability, technical guidance and replacement parts can be provided for local repair. Cases requiring more extensive mechanical work can be referred for further technical service.<\/p><p>This approach helps avoid unnecessary component replacement and allows distributors to respond to customers with a more structured troubleshooting process.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b898037 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b898037\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4578e91\" data-id=\"4578e91\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8b010ee elementor-widget elementor-widget-heading\" data-id=\"8b010ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-015c9b9 elementor-widget elementor-widget-text-editor\" data-id=\"015c9b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Many common agricultural power sprayer pump problems can be diagnosed more effectively by following a logical sequence rather than immediately replacing parts.<\/p><p>Start with the basics:<\/p><p><strong><b>Water supply \u2192 Hose and connection sealing \u2192 Filtration \u2192 Pressure adjustment \u2192 Valve operation \u2192 Packing and plungers \u2192 Internal mechanical components<\/b><\/strong><\/p><p>For distributors, dealers, and agricultural equipment users, understanding this troubleshooting sequence can shorten service time, reduce unnecessary repair costs, and help distinguish a pump problem from a system problem.<\/p><p>A reliable agricultural power sprayer pump is not only defined by how it performs when new. Long-term value also depends on whether problems can be diagnosed, serviced, and supported efficiently throughout its working life.<\/p><p>At LUSHYONG, our goal remains simple:<\/p><p><strong><b>Help our distributors earn repeat orders\u2014not repeat complaints.<\/b><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8545fb9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8545fb9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e64eeb3\" data-id=\"e64eeb3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66674cc elementor-widget elementor-widget-spacer\" data-id=\"66674cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Home\u00a0 &gt; \u00a0Resources \u00a0&gt;\u00a0 News &amp; Blog\u00a0\u00a0 &gt;\u00a0\u00a0 Common Agricultural Power Sprayer Pump Problems: Causes and Solutions Agricultural power sprayer pumps operate under demanding conditions, often handling water, pesticides, fertilizers, and other agricultural solutions for extended periods. Even a well-manufactured pump can eventually develop operating problems due to wear, improper system matching, blocked components, poor &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.lushyong.com\/ru\/common-agricultural-power-sprayer-pump-problems-causes-and-solutions\/\"> <span class=\"screen-reader-text\">Common Agricultural Power Sprayer Pump Problems: Causes and Solutions<\/span> \u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 &raquo;<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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