SD-8 Wiring – Jared and Tabitha's Bearhawk Construction Log

Today I continued with wiring the SD-8 and it’s components. I have a copy of the Z-13/8 drawing in the hangar, and I’ve been drawing lines on the diagram to note wires that are complete. First, I made a hole in the firewall for the alternator output wires.

Firewall Grommet — This grommet will fill a hole that is just big enough to get the connector through.

Firewall Hole — I chose this location in the firewall because it made for a nice short run to the alternator.

Then I ran the wires to the circuit breaker, which is part of the crowbar over voltage protection.

Circuit Breaker Wiring — The bottom circuit breaker is the 2A for the SD-8. the top is a 5A for the primary alternator's Crowbar OV protection.

Next came the wires to the switch.

Switch Wiring — The faston connectors at the back of the switch make the process easy.

Fuse links to the ammeter shunt — These wires are for the ammeter shunt. The ends include fuse links of 24-gauge wire.

The wires from the shunt go to a double pole switch that will provide a selection between the two ammeter measuring points.

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