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Operating and Maintaining your Air Tools

Piping System

Air mains and lines should be large enough to avoid excessive pressure loss under conditions of maximum flow. In air lines, as in after coolers, water is continually precipitated as the air cools. For this reason pipe lines should be provided with a means of draining or trapping this water before it reaches the hose outlets. It is advisable to pitch the mains in the direction of air flow so that both gravity and air flow will carry the water to traps or water legs located at frequent intervals. These should be drained regularly and never allowed to become full and inoperative. Use of automatic traps will eliminated manual draining and the possibility of traps becoming full.

To aid in preventing condensed moisture from reaching the tools, down pipes or hose connections should never be taken directly from the bottom of air pipes or mains. Leaders, valves and hose connections should be large enough to pass the maximum amount of air required by the tool or tools on the line. This is particularly important if manifolds, from which several hose lines run are used.

Air Supply

Optimum air tool performance is based on a clean, dry air supply that delivers 90 psi of air pressure at the tool, while the tool is running. Lower air pressure will reduce efficiency of the tool. Air line filters will effectively eliminate corrosive particles from the air supply. To get the ultimate in erformance from your air tool’s air compressor capacity, proper air hoses and fittings are essential.


Many air tools, because of weight and space limitations, do not contain built-in lubricators. With such tools air line lubricators must always be used. Air line lubricators automatically provide oil to tools allowing them to operate at peak efficiency. Proper lubrication is the most important requirement in preventative maintenance. The majority of tool failures can be linked to inadequate lubrication.

Air Regulators

Clean, dry, lubricated air at the proper presure is the most important requirement for proper operation of air tools. AirPro tools are designed to operate at 90 psi unless otherwise specified.

Moisture Seperators

On installation where the piping system does not provide clean, dry air, the use of filters at hose connection points is recommended. A good filter, kept properly drained, will removed nearly all entrained water whereas a poor one is practically useless. Most filters do not have adequate water storage capacity and, unless provided with an auxiliary storage receiver or automatic trap, soon cease to function.


Tools should be inspected regularly to prevent unnecessary damage and downtime. Moisture and dirt leads to rapid wear of motor parts. Moisture will cause rusting. Use of in-line oilers will keep tools working better and longer. Always wear safety glasses and boots when working with any air tools. Keep hands, hair and loose clothing away from the tools.

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