Jefa Transmission Steering Installation Guide

About this manual

This guide provides step-by-step instructions for installing Jefa transmission steering components, including pedestals, bevel boxes, torque tubes, and draglinks. It covers positioning, reinforcement, drilling, and assembly for different boat configurations. The guide includes specific details for TS100, TS200, TS300, TS400, BG12, BG15, BG12QM, and BG15QM models, with notes on optional engine control mechanisms and mounting variations.

Installation requires careful attention to positioning, material thickness, and bolt specifications to ensure proper function and safety. The guide also addresses special cases like twin-wheel steering and multi-reduction gearbox setups, with diagrams and measurements provided for each component.

What's inside

• General Information
• Positioning the Pedestal
• Reinforcement of the Cockpit Floor
• Drilling and Mounting the Pedestal
• Fitting the Engine Control Mechanism
• Mounting Engine Control Feet
• Fitting BG12 & BG15 Bevel Boxes
• Fitting BG12QM & BG15QM Bevel Boxes

Frequently asked questions

What is the minimum recommended thickness for a GRP cockpit floor to support the steering system?

The cockpit floor should have a total thickness of at least 40 mm.

What is the required hole diameter for mounting bolts on the TS100 pedestal?

The holes for the mounting bolts should be drilled to 10.5 mm.

What is the gear ratio for the BG12QM steering box?

The BG12QM steering box has a 1:1 gear ratio.

What is the maximum floor thickness allowed for using foot type 2 when mounting the TS100 pedestal?

Type 2 allows cables to pass the cockpit floor with a maximum floor thickness of 45 mm.