MSD 8739 Two Step Module Selector Instruction Manual

製品終了view

The MSD 8739 Two Step Module Selector is designed to provide precise RPM control for automotive ignition systems. It allows users to switch between two distinct RPM or timing retard modules, enhancing vehicle performance and control, particularly in racing applications. This unit is intended for use with MSD Soft Touch Rev Controls or MSD Timing Computers.

Image: The MSD 8739 Two Step Module Selector, a compact electronic device with wiring terminals.

含まれるもの

• MSD 8739 Two-Step Module Selector

セットアップとインストール

The MSD 8739 Two Step Module Selector requires connection to an existing MSD Soft Touch Rev Control or MSD Timing Computer. Professional installation is recommended.

配線接続:

Refer to the wiring diagram provided with your MSD Soft Touch Rev Control or Timing Computer for specific connection points. The 8739 unit typically connects to the module input terminals of the main ignition control unit.

• 力： Ensure the ignition system is off before making any connections.
• モジュールの選択: The 8739 unit facilitates switching between two RPM modules (not included). Insert the desired RPM modules into the designated slots on the 8739 selector.
• アクティベーションスイッチ: Connect an external switch (e.g., a clutch switch or transbrake switch) to the 8739 unit to activate the second RPM limit.

Note: RPM Modules are sold separately and are not included with the 8739 Two Step Module Selector.

操作手順

The MSD 8739 Two Step Module Selector allows for two distinct RPM limits to be used. One RPM limit is active by default, and the second RPM limit is activated via an external switch.

Setting RPM Limits:

1. Install the desired RPM modules into the 8739 selector. For example, a lower RPM module for launch control and a higher RPM module for general engine protection.
2. Ensure the 8739 unit is correctly wired to your MSD ignition control and the activation switch.

Using the Two Step Function:

When the activation switch (e.g., clutch pedal depressed, transbrake engaged) is active, the 8739 unit will engage the RPM limit of the second module. Releasing the switch will revert to the RPM limit of the first module.

This functionality is commonly used for consistent launch RPMs in drag racing or other performance applications.

メンテナンス

The MSD 8739 Two Step Module Selector is a solid-state electronic device and requires minimal maintenance.

• 検査： すべての配線接続部の締め付け具合や摩耗、腐食の兆候がないか定期的に点検してください。
• クリーニング： Keep the unit clean and free from excessive dirt, moisture, and extreme temperatures. Use a dry, soft cloth for cleaning.
• モジュールケア: Handle RPM modules carefully. Ensure they are seated correctly in the selector.

トラブルシューティング

If you experience issues with your MSD 8739 Two Step Module Selector, consider the following:

• No Second RPM Limit:
  • Check all wiring connections, especially the activation switch. Ensure the switch is functioning correctly.
  • Verify that the RPM modules are correctly inserted and are the correct type for your application.
  • Confirm that your MSD ignition control unit is compatible with the 8739 selector.
• Incorrect RPM Limit:
  • Ensure the correct RPM modules are installed for the desired limits.
  • Check for any loose connections that might cause intermittent signals.
• ユニットが機能していません:
  • Verify power supply to the MSD ignition control unit.
  • Inspect for any visible damage to the 8739 unit or its wiring.

For further assistance, contact MSD technical support.

仕様

保証情報

This product is covered by a manufacturer's warranty. For specific details regarding warranty coverage, duration, and claims process, please refer to the documentation included with your purchase or visit the official MSD webサイト。

保証の説明: 保証

安全情報と警告

カリフォルニア州の警告：がんおよび生殖への悪影響 - www.p65warnings.ca.gov

電気部品の取り付けやメンテナンスを行う前に、必ず車両のバッテリーを外してください。

ショートや電気的な危険を防ぐために、すべての配線が適切に絶縁され、固定されていることを確認してください。

Installation should be performed by qualified personnel to avoid damage to the product or vehicle.

サポート

For technical assistance, product inquiries, or troubleshooting support, please contact MSD customer service.

MSD Official Webサイト： www.msdパフォーマンス.com

サポートにお問い合わせの際は、製品のモデル番号 (8739) と購入情報をご用意ください。