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On-Board Air Compressor / Welder for vehicles

Step 3Whats involved

Whats involved
This instructable shows how I installed an air compressor in a Jeep Wrangler, not all vehicles are the same so this should only be a guide.

When we think of a air compressor we thing of that large tank, motor, and pump we have tucked into a corner of our shops. Its chugs along pumping up its air tank till we release that air as usable work with a pneumatic tool.

The compressor we are going to use in this instructable is one you would actually expect to see under the hood of a car, a Air Conditioning compressor.

Some would say 'those can only pump freon!' in that thought they would be incorrect, a AC compressor will just as happily pump air as it once did refrigerant.

This compressor will be driven much like it was originally by a belt, either V or serpentine depending on the type of compressor.

In the diagram below you can see just how the componets will work together to run your air tools.

First we have the compressor, taking in air and pushing it forward though the oil separator. After the separator is goes onward toward the manifold where in interacts with the pressure switch, popoff valve, before going to the air tank. As pressure build it will open the contacts on the pressure switch disconnecting compressors clutch stopping the air flow until the air pressure drops enough for the contacts in the switch to close again.

Next we will look as the tools we will need.
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Author:DeathBlade