Bennett Trim Tab Wiring Diagram: A Comprehensive Guide

Trim tabs are one of the most important components of a boat’s steering system. They help to keep the boat stable and level, and also improve fuel efficiency by reducing drag. The Bennett trim tab system is one of the most popular systems on the market, and requires proper wiring to function correctly. In this article, we will provide a comprehensive guide on the Bennett trim tab wiring diagram, including installation instructions, troubleshooting tips, and frequently asked questions.

What is a Trim Tab?

A trim tab is a small metal plate that is attached to the trailing edge of a boat’s hull. It can be adjusted up or down to change the boat’s angle of attack, which in turn affects the amount of lift and drag created by the hull. This allows the boat to be balanced and levelled, even in rough or uneven water conditions.

Trim tabs come in a variety of sizes and shapes, and can be controlled manually or electronically. The Bennett trim tab system is an electronic system that uses a hydraulic pump and control panel to adjust the tabs.

How to Install a Bennett Trim Tab System

Before beginning the installation process, it is important to gather all necessary materials and tools. These may include:

Materials Tools
Bennett trim tab kit Screwdriver
Wire stripping tool Drill
Wire connectors Hole saw
Zip ties Sealant

Once all necessary materials and tools are gathered, follow these steps to install a Bennett trim tab system:

Step 1: Determine Trim Tab Location

The first step in installing a Bennett trim tab system is to determine the location of the trim tabs on the boat. This will depend on the size and shape of the boat, as well as the desired performance characteristics. The trim tabs should be mounted symmetrically on the transom, with the bottom of the tab about one inch above the bottom of the hull.

Step 2: Drill Mounting Holes

Once the location of the trim tabs has been determined, use a hole saw to drill the mounting holes for the tabs. The holes should be slightly larger than the mounting screws, to allow for movement and adjustment of the tabs.

Step 3: Mount Trim Tabs

Mount the trim tabs to the transom using the provided screws and sealant. Make sure the tabs are level and aligned properly, and tighten the screws securely.

Step 4: Install Hydraulic Pump and Control Panel

The next step is to install the hydraulic pump and control panel for the trim tabs. These should be mounted in a dry location near the transom, using the provided mounting bracket and screws.

Step 5: Connect Wiring

Connect the wiring for the trim tabs according to the Bennett trim tab wiring diagram. This will involve connecting the wires from the hydraulic pump and control panel to the battery and helm switch. Use wire connectors and zip ties to secure the wiring and prevent it from rubbing or chafing against other components.

Step 6: Test System

Once the wiring is connected, test the Bennett trim tab system to make sure it is functioning properly. This can be done by turning the helm switch to the up and down positions and observing the movement of the trim tabs. Adjust the tabs as necessary to achieve the desired level and performance.

Troubleshooting Tips for Bennett Trim Tab Wiring Diagram

Even with proper installation, there may be times when the Bennett trim tab system experiences problems. Some common issues and solutions include:

Trim Tabs Not Responding

If the trim tabs are not responding to the helm switch, there may be a problem with the wiring or the hydraulic pump. Check the wiring for loose connections or damage, and replace any damaged components. If the wiring appears to be intact, the hydraulic pump may need to be replaced.

Trim Tabs Uneven

If the trim tabs are uneven or not responding properly, there may be an issue with the mounting or alignment of the tabs. Check the mounting screws and sealant for tightness and proper alignment, and adjust as necessary. If the problem persists, there may be a problem with the hydraulic pump or control panel.

Hydraulic Pump Running Continuously

If the hydraulic pump is running continuously, there may be a problem with the wiring or the switch. Check the wiring for loose connections or damage, and replace any damaged components. If the wiring appears to be intact, the helm switch may need to be replaced.

Bennett Trim Tab Wiring Diagram FAQs

What is the Purpose of a Bennett Trim Tab System?

The purpose of a Bennett trim tab system is to improve the performance and stability of a boat by adjusting the angle of the hull. This reduces drag, improves fuel efficiency, and provides a smoother ride in rough or uneven water conditions.

How Do You Install a Bennett Trim Tab System?

To install a Bennett trim tab system, follow the basic steps of determining the location of the trim tabs, drilling mounting holes, mounting the tabs and hydraulic pump, connecting the wiring according to the Bennett trim tab wiring diagram, and testing the system to ensure proper operation.

What Are Some Common Problems with a Bennett Trim Tab System?

Some common problems with a Bennett trim tab system include unresponsive trim tabs, uneven or misaligned tabs, and a hydraulic pump that runs continuously. These problems can often be resolved by checking the wiring and components for damage or loose connections, adjusting the mounting and alignment of the tabs, or replacing damaged components.

In conclusion, the Bennett trim tab system is an important component of a boat’s steering and stability system. Proper installation and wiring are essential for optimal performance and efficiency. By following the instructions and tips provided in this article, boat owners can ensure that their Bennett trim tab system is installed correctly and functioning properly.