Off-road enthusiasts agree that the ARB twin compressor is an essential tool for any 4×4 aficionado. It can inflate tires, power air tools, and even reseat tire beads. However, getting the wiring right is crucial to get the most out of your compressor. In this article, we’ll provide a step-by-step guide to wiring your ARB twin compressor, accompanied by diagrams and FAQs.
Tools and Materials
Before starting, make sure you have the following tools and materials:
- A pair of wire strippers
- A pair of pliers
- A crimper tool
- A multi-meter
- A roll of electrical tape
- A roll of zip ties
- A 50-amp circuit breaker and holder
- A 6-gauge positive battery cable
- A 6-gauge negative battery cable
- A fuse holder and 30-amp fuse
- A pressure switch
- Two relays
- A rocker switch
- ARB twin compressor wiring harness
Wiring Diagram
In this section, we’ll provide you with a wiring diagram to help you visualize the wiring process. Refer to this diagram as you follow the steps outlined below.
| Terminal | Color | Function |
|---|---|---|
| 1 | Red | To positive battery |
| 2 | Black | To negative battery |
| 3 | Green | Switched positive |
| 4 | Yellow | Switched ground |
| 5 | Blue | Pressure switch ground |
| 6 | Brown | Relay #1 |
| 7 | Pink | Relay #2 |
| 8 | Gray | Lighting ground |
| 9 | Orange | Lighting power |
Step-by-Step Guide
Step 1: Mount the Compressor
The first step is to mount the ARB twin compressor onto a solid surface. Ensure that the location is dry and out of reach of any debris or water. You’ll need to drill holes into the mounting surface to secure the compressor with bolts.
Step 2: Install the Pressure Switch
Locate a suitable location for the pressure switch either in the engine bay or inside the cabin. You’ll need to mount the switch onto a surface and connect it to the compressor using a wire. The pressure switch is an essential component as it turns the compressor on and off automatically when the system reaches your desired pressure.
Step 3: Install the Circuit Breaker and Holder
Locate a suitable location for the circuit breaker and holder either under the hood or inside the cabin. The circuit breaker is an essential safety feature that protects the compressor from electrical overload. You’ll need to connect the circuit breaker and holder to the battery using a 6-gauge cable.
Step 4: Wire the Battery Cables
Connect the 6-gauge positive battery cable to the positive terminal of the battery and the 6-gauge negative battery cable to the negative terminal of the battery.
Step 5: Install the Fuse Holder and Fuse
Locate a suitable location for the fuse holder either under the hood or inside the cabin. The fuse holder protects the compressor from electrical overload, just like the circuit breaker. You’ll need to connect the fuse holder and fuse to the compressor using a wire.
Step 6: Connect the Pressure Switch to Terminal 5
Connect the pressure switch wire to terminal 5 of the wiring harness. This wire is responsible for grounding the pressure switch when the system reaches the desired pressure.
Step 7: Connect Terminal 3 to a Switched Positive
Connect wire 3 of the wiring harness to a switched positive source. A switched positive source is one that only has power when the ignition is turned on. This ensures that the compressor only turns on when the vehicle is running.
Step 8: Connect Terminal 4 to a Switched Ground
Connect wire 4 of the wiring harness to a switched ground source. A switched ground source is one that only has a ground signal when the ignition is turned on. This ensures that the compressor only receives a signal to turn on when the vehicle is running.
Step 9: Connect the Lighting Wires
Connect the lighting wires to the lighting ground and power sources. This ensures that the compressor’s backlit switch and gauge functions are illuminated at night.
Step 10: Wire Relay 1
Connect wire 6 of the wiring harness to one side of relay 1. Connect the other side of relay 1 to the positive terminal of the compressor.
Step 11: Wire Relay 2
Connect wire 7 of the wiring harness to one side of relay 2. Connect the other side of relay 2 to the negative terminal of the compressor.
Step 12: Connect the Wiring Harness
Connect the wiring harness to the ARB twin compressor. Ensure that the connections are tight and secure. Use zip ties to organize the wiring and protect it from damage.
Step 13: Test the Compressor
Once you’ve completed the wiring process, test the compressor to ensure it’s working correctly. Turn the ignition on, and the compressor should turn on automatically once the system reaches your desired pressure.
FAQs
What is an ARB twin compressor?
An ARB twin compressor is a portable air compressor that is commonly used by off-road enthusiasts to inflate tires and power air tools. It’s a dual-cylinder compressor that can deliver high volumes of compressed air to enable faster tire inflation and pneumatic tool operation.
How much does an ARB twin compressor cost?
An ARB twin compressor can cost anywhere from $500 to $800, depending on the model and features. It’s important to invest in a high-quality compressor that has a reputation for durability and reliability to avoid costly breakdowns in the future.
What makes the ARB twin compressor unique?
The ARB twin compressor is unique in that it utilizes a dual-cylinder design to deliver fast, high-volume airflow. It’s also built to withstand harsh off-road conditions and features a weather-resistant housing and tough, heavy-duty components.
Can the ARB twin compressor power air tools?
Yes, the ARB twin compressor can power most air tools, including impact wrenches, ratchets, and sanders. However, it’s important to ensure that the compressor is properly wired and can handle the tool’s airflow and pressure requirements.
Is it difficult to wire an ARB twin compressor?
Wiring an ARB twin compressor can be challenging, especially if you’re not familiar with electrical wiring principles. However, with the right tools, materials, and guidance, it’s a manageable DIY project that can be completed in a few hours.
Conclusion
Wiring your ARB twin compressor is an essential step to ensure that you can enjoy seamless, reliable performance for all your off-road adventures. Follow the steps outlined above, and you’ll be on your way to inflating tires, powering air tools, and tackling tough terrain with ease.
