Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

Autohelm4. Gimbal Support Bracket installation (Spares Kit M096)This kit comprises of a back case, cable assembly, pivot blocks, support bracket andpivot retaining screws.1. Remove the four case screws and take off the front cover and seal.2. Carefully remove the flexible circuit from the connector in the rear moulding.3. Remove and discard the pivot block mounting screws and lift away fhe fluxgateassembly.4. Build the Fluxgate assembly into the new back case as shown in fig. 1. Use thenew screws supplied to retain the pivot mounting blocks and support bracket. Useonly hand screw drivers for re-assembly to ensure screws are not over tightened.Rotate screws anticlockwise to locate in the thread before tightening.5. Carefully insert the flexible circuit tail into the connector in the rear moulding.Ensure the tail is not twisted and passes over the support bracket (see fig. 1.)6. Before installing the cover check the gimbal action of the new assembly by tiltingthe case in all directions and observing the fluxgate movement.7. Refit the front cover and seal (again rotating the screws anticlockwise to locate andtightening with a hand screw driver).8. Functionally check the Fluxgate with a D.V.M. as follows:Cable Colour Connector Pin no. ResistanceScreen to Blue 2/4