Air Supply

To prevent explosion: Use only clean,

dry, regulated, compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source for this tool.

1.Incorporate a shut-off valve, regula- tor with pressure gauge, and filter for best service, as shown in the diagram above. An in-line shutoff valve is an important safety device because it controls the air supply even if the air hose is ruptured.

2.Attach an air hose to the compres- sor’s air outlet. Connect the air hose to the air inlet of the tool. Other com- ponents, such as a connector and quick coupler, will make operation more efficient, but are not required.

WARNING! To prevent serious

injury from accidental operation:

Do not install a female quick coupler on the tool. Such a coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected.

Note: Air flow, and therefore tool perfor- mance, can be hindered by under- sized air supply components.

3.The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

4.Make sure the tool’s trigger is in the off position; refer to Operation section for description of controls.

5.Close the in-line safety valve be- tween the compressor and the tool.

6.Turn on the air compressor according to the manufacturer’s directions and allow it to build up pressure until it cycles off.

7.Adjust the air compressor’s output regulator so that the air output is enough to properly power the tool, but the output will not exceed the tool’s maximum air pressure at any time. Adjust the pressure gradually, while checking the air output gauge to set the right pressure range.

8.Inspect the air connections for leaks. Repair any leaks found.

9.If the tool will not be used at this time, turn off and detach the air sup- ply, safely discharge any residual air pressure, and release the throttle and/or turn the trigger to its off posi- tion to prevent accidental operation.

SKU 66222

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 66222 operating instructions Air Supply, Injury from accidental operation