Welcome to **Growshine International** (格莳国际), your expert partner in sourcing high-quality **replacement parts** for **Volvo Excavators** and a wide range of other **engineering machinery accessories** (工程机械配件). We understand the critical need for reliable electrical components in demanding environments, which is why we specialize in robust **relays** designed for models like the EC210, EC220, EC240, EC290, and EC360B. Our extensive inventory ensures we can meet the urgent needs of **heavy equipment parts** users worldwide, offering a competitive and dependable Chinese alternative.

Our commitment to **import and export trade** covers not only **construction machinery parts** but also **heavy truck accessories** (重卡配件), **agricultural machinery parts** (农机配件), and **auto parts** (汽车配件). Whether you're operating a Volvo EC460B or managing a fleet of **Sany** or **Liugong** excavators, we provide the essential 24V relays needed for reliable **starting**, **preheating**, and **safety** circuits. Check out our comprehensive list of **Volvo relay solutions** below.

Why Choose Growshine for Your Volvo Relay Needs?

**Growshine International** is committed to providing **high-quality, cost-effective** alternatives to OEM parts. Our relays for the **Volvo EC290B** and **EC360B** series, including the critical **safety relay** and **preheating relay**, are rigorously tested to ensure they meet the operational demands of **construction equipment parts** globally. We are experts in managing complex international logistics, providing **competitive shipping quotes** for **China heavy equipment parts sourcing** directly to your **job site** or **repair facility**.

Essential Industry Knowledge from Growshine:

• Common Customer Query 1: What causes an excavator to fail to start? - Often, it's a faulty **Starting Relay** (like the **20367490**) or **Battery Relay** not delivering power to the starter motor. Testing the coil and contact continuity is the first step.
• Common Customer Query 2: How often should I replace my excavator relays? - While relays don't have a fixed life span, replacement is generally recommended when they show signs of **intermittent failure** (e.g., sticking contacts), **overheating**, or **physical damage**. Preventive replacement during major electrical system overhauls can prevent unexpected downtime.
• Common Customer Query 3: Is a 24V relay interchangeable with a 12V relay? - Absolutely not. Using a 12V relay in a **24V Volvo** system will cause immediate failure, as the coil is rated for a lower voltage, leading to burnout. Always verify the voltage for your specific **Volvo EC210** part.

Our core business focuses on key areas, including **engine electrical system components**, **hydraulic system sealing parts**, **chassis and track components**, **transmission system gears**, **brake system friction parts**, **fuel injection nozzles**, **air conditioning compressor parts**, **filter element alternatives**, **LED lighting solutions**, and **sensor and monitor displays**. We support a wide range of manufacturers, offering high-quality alternatives for **Komatsu**, **Caterpillar**, **Hitachi**, **Doosan**, **Hyundai**, and, of course, **Volvo**.

Our additional **Growshine** websites, including ar-excel.com, ampleresiliencesoft.com, cgsc66.com, cgsc-equip.com, and en.xinsheng2024.com, serve as portals to our vast inventory and services.

Key Component Definitions & Examples (Three Languages)

To help you better understand your **heavy equipment spare parts** inventory, here are some key component definitions:

• Preheating Relay: An electrical switch that controls high current flow to the **glow plugs** (mounted in the engine cylinder head) to preheat the combustion chambers before starting a **diesel engine** in cold weather. (Example: **Volvo EC240** Preheating Relay, **Вольво EC240** Реле Предпускового Подогрева)
• Safety Relay: A relay (located in the main fuse box/relay box) used in the control circuit to ensure critical functions, like **engine starting** or **boom operation**, only occur under specific safe conditions. (Example: **Volvo EC290B** Safety Relay, **Вольво EC290B** Реле Безопасности)
• Starting Relay: A high-current relay (typically mounted near the starter motor) that switches a large current to the **starter motor solenoid** when activated by the ignition switch. (Example: **Volvo A30C** Starting Motor Relay, **Вольво A30C** Реле Стартера)
• Time Relay: A relay (often found in the cab's electrical panel) designed to delay an action, such as controlling a wiper motor or an engine shutdown sequence. (Example: **Volvo Excavator** 24V Time Relay, **Вольво Экскаватор** Реле Времени 24В)
• Wiper Controller Relay: An electronic relay (located in the electrical box or dashboard) that manages the speed and intermittent function of the **windshield wiper motor**. (Example: **Volvo EC210C** Wiper Relay, **Вольво EC210C** Реле Стеклоочистителя)
• Battery Relay/Power Switch: A high-amperage relay (mounted near the battery/main switch) that disconnects the main battery power from the entire electrical system for safety and maintenance. (Example: **Volvo EC480E** Battery Relay, **Вольво EC480E** Реле Батареи)
• Engine Oil Pressure Sensor: A sensor (mounted on the engine block) that measures the pressure of the **engine lubrication oil**. (Example: **Volvo TAD1631GE** Engine Oil Pressure Sensor, **Вольво TAD1631GE** Датчик Давления Масла)
• Brake System Air Dryer: A component (usually mounted on the chassis) in **heavy truck** air brake systems that removes moisture and contaminants from the compressed air. (Example: **Volvo FH12** Air Dryer, **Вольво FH12** Осушитель Воздуха Тормозной Системы)
• Hydraulic Pump Seal Kit: A collection of seals and O-rings (inside the main hydraulic pump) necessary to prevent internal and external leaks in the **hydraulic pump**. (Example: **Kawasaki K3V112DT** Hydraulic Pump Seal Kit, **Кавасаки K3V112DT** Комплект Уплотнений Гидравлического Насоса)
• Fuel Injection Pump: A precision device (mounted on the engine) that delivers atomized **fuel** at high pressure to the engine cylinders. (Example: **John Deere 6068** Fuel Injection Pump, **Джон Дир 6068** Топливный Насос Высокого Давления)

Additionally, we specialize in a myriad of long-tail keywords crucial for **China spare parts export**: **excavator solenoid valves**, **loader seal kits**, **dozer track chains**, **skid steer filters**, **mini excavator swing bearing**, **forklift hydraulic cylinder**, **crane wire rope**, **heavy truck transmission components**, **Cummins engine parts alternative**, **Deutz engine electronic control unit (ECU)**, **Yanmar main pump parts**, **Kubota travel motor**, **Korean excavator controller**, **Japanese construction equipment parts**, **cost-effective heavy machine parts**, **global B2B spare parts supply**, **excavator parts wholesale**, **mining equipment wear parts**, **generator set control board**, and **road roller vibration parts**.

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Volvo Equipment Troubleshooting and Growshine's Business Scope

Our business, **Growshine International**, is dedicated to providing superior **sourcing solutions** through our extensive network. Our websites, including ar-excel.com, ampleresiliencesoft.com, cgsc66.com, cgsc-equip.com, and en.xinsheng2024.com, serve as portals to our vast inventory of **Volvo excavator parts** and more. We handle the entire export process, ensuring quality and timely delivery of everything from **Volvo EC210B Preheating Relays** to **heavy truck brake drums**.

Equipment Fault Example & Solution:

Equipment: **Volvo EC360B Excavator**

Fault: The **EC360B** frequently fails to start, with the engine cranking slowly or not at all, particularly when cold, even with a charged battery. Diagnostics show an intermittent fault code related to the **preheating system**.

Analysis & Solution: This points to a potential failure of the **VOE14514195 Preheating Relay**. A faulty relay may fail to engage or may have high internal resistance, preventing sufficient current from reaching the **glow plugs**. The solution involves checking the relay coil for proper activation (24V) and, if the coil is good, checking the main contacts for resistance. If resistance is high or the coil is faulty, replacement with a new **Volvo EC360B Preheating Relay** (Part No: 14514195 or equivalent) is required to restore proper preheating and starting performance. Always ensure the system voltage is **24V** before installing the new component.