1. はじめに
This manual provides essential information for the installation, operation, and maintenance of the QRLVJFMTY Fuel Shutoff Solenoid. This component is designed as a direct replacement for various Yanmar diesel engines and Thermo King units, ensuring reliable fuel flow control.
互換性: This solenoid is compatible with Yanmar Diesel Engines including 366, 3.66, 3,66, 395, 3.95, 3,95, 374, 3.74, 3,74 (3TNE72 series), 388, 3.88, 3,88 (3TNA72 series), 482, 4.82, 4,82 (4TNE84 series), and 486, 4.86, 4,86 (4TNE88 series). It replaces part numbers TK 41-6383, TK416383, 416383, and 41-4306.
図1: 前面 view of the QRLVJFMTY Fuel Shutoff Solenoid with its integrated wiring harness.
2 製品の特徴
- クイックレスポンス: Designed for rapid action upon signal reception, ensuring efficient fuel control.
- 低消費電力: Operates with minimal energy, contributing to energy efficiency.
- コンパクトな構造: Small footprint allows for easy installation and integration into existing systems.
- Low Working Noise: Engineered to produce minimal operational noise.
- 高い安全性能： Constructed to ensure safe and reliable operation.
3. 安全情報
警告： Always disconnect the vehicle's battery before performing any installation or maintenance to prevent electrical shock or damage to the system.
- 作業を始める前に、エンジンが完全にオフになっていて、冷却されていることを確認してください。
- 安全メガネや手袋などの適切な個人用保護具 (PPE) を着用してください。
- Handle fuel lines with care to prevent spills and exposure. Fuel is flammable.
- Refer to the engine manufacturer's service manual for specific procedures and torque specifications.
- いずれかの手順について不明な点がある場合は、資格のある技術者に支援を求めてください。
4. インストール
The following steps provide a general guide for installing the fuel shutoff solenoid. Specific procedures may vary depending on the engine model. Always consult your engine's service manual.
- 準備： Disconnect the negative terminal of the battery. Ensure the engine is cool.
- 古いソレノイドの位置を特定します。 Identify the existing fuel shutoff solenoid on your engine. It is typically located near the fuel injection pump or fuel filter housing.
- 配線を外す: Carefully disconnect the electrical connector from the old solenoid. Note the orientation of the wiring if not clearly marked.
- 古いソレノイドを取り外す: Unscrew any mounting bolts or nuts securing the old solenoid. Remove the solenoid from its mounting bracket or housing. Be prepared for a small amount of fuel leakage.
- 取り付けエリアの検査: Clean the mounting surface to ensure a proper seal for the new solenoid.
- 新しいソレノイドをインストールします。 Position the new QRLVJFMTY Fuel Shutoff Solenoid in the same location as the old one. Secure it with the appropriate mounting hardware. Do not overtighten.
- 配線を接続: Reconnect the electrical connector to the new solenoid. Ensure a secure and proper connection.
- 最終チェック: Reconnect the battery. Inspect all connections for tightness and ensure no tools or debris are left in the engine compartment.
- テスト操作: Start the engine and check for proper operation of the fuel shutoff solenoid. Listen for the solenoid's click when the ignition is turned on and off. Check for any fuel leaks.
図2：側面 view of the solenoid, highlighting the mounting flange and electrical connector for installation reference.
5. 操作
The fuel shutoff solenoid is an electrically operated valve that controls the flow of fuel to the engine's injection system. Its primary function is to cut off the fuel supply when the engine is turned off, preventing run-on and ensuring a clean shutdown.
- When the ignition key is turned to the "ON" position, the solenoid receives electrical power, which energizes an electromagnet.
- This electromagnet pulls a plunger, opening the fuel passage and allowing fuel to flow to the engine.
- When the ignition key is turned to the "OFF" position, power to the solenoid is cut.
- A spring then pushes the plunger back, closing the fuel passage and stopping the engine.
Proper operation is indicated by the engine starting and stopping correctly with the ignition key.
6. メンテナンス
The QRLVJFMTY Fuel Shutoff Solenoid is designed for durability and requires minimal maintenance. However, periodic inspection can help ensure its longevity and reliable performance.
- 目視検査: Periodically check the solenoid and its wiring for any signs of damage, corrosion, or loose connections.
- 清潔さ: Keep the area around the solenoid clean and free from dirt, debris, and fuel residue.
- 接続の整合性: Ensure the electrical connector is securely attached and free from moisture or corrosion. Clean terminals if necessary.
- 機能チェック: If experiencing engine starting or stopping issues, test the solenoid's function by listening for the "click" when power is applied and removed.
7。 トラブルシューティング
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| Engine will not start (no fuel flow) | Solenoid not receiving power; Solenoid stuck closed; Faulty wiring/connector. | Check electrical connections and fuses. Test for voltage at solenoid. Replace solenoid if faulty. |
| Engine will not shut off (run-on) | Solenoid stuck open; Solenoid receiving constant power; Faulty ignition switch. | 一定量のボリュームをチェックtage at solenoid when ignition is off. Replace solenoid if faulty. Inspect ignition switch. |
| Intermittent engine operation | Loose electrical connection; Intermittent power supply; Solenoid failing. | Secure all electrical connections. Check for stable voltage supply. Consider replacing solenoid. |
If troubleshooting steps do not resolve the issue, consult a qualified mechanic or engine service professional.
8. 仕様
- モデル番号: TK 41-6383 (Replaces 41-4306, TK416383, 416383)
- ブランド： QRLVJFMTY
- 互換性: Yanmar Diesel Engines (3TNE72, 3TNA72, 4TNE84, 4TNE88 series)
- パッケージ寸法: 0.39 x 0.39 x 0.39インチ
- 商品の重量: 1.76オンス
- メーカー: Zeng19961021
- 必要な電池: いいえ
9. 保証とサポート
This QRLVJFMTY product is manufactured to high-quality standards. For specific warranty information or technical support, please refer to the retailer or manufacturer's official web製品をご購入いただいたサイトにてご購入ください。購入証明書としてレシートを保管してください。
