The electrical circuit terminal blocks used in the Skyjack Aerial Work Platforms are a method to neatly and securely terminate wires of the same circuit at a common point. Each terminal block can hold four conductors of the same circuit. Each block is attached to a metal rail mounted to the panel or control box and are ‘stacked’ side by side to form one terminal strip assembly.

Figure 1 shows a single block from the top as you would see it in a machine. Figure 2 shows the block from the side and you can see the spring clips that secure the wires inside the block and how all four wire holes connect to each other.

To test a circuit at the terminal block with a voltmeter probe, insert the probe into either the insertion tool slot to contact the spring clip, or use the jumper slots next to the wire number tag area.

Some of the terminal blocks are equipped with an internal diode. These blocks have a diode symbol in the middle of the block. The diode separates two round wire holes from the opposite two holes. Figure 4 shows the diode-equipped terminal block.

Knowing how the terminal blocks work will make troubleshooting electrical circuits easier and more accurate.

If you have any questions regarding your Skyjack product, please contact Skyjack Product Support at 1-800-275-9522 or email service@skyjack.com.