8.4 Maintaining the System with an Inline Clean Air Kit
Caution
Do not rely on the supplied filter as the sole means of cleaning the air for the machine.
With the Inline Clean Air Kit, the fan on the side of the HDV is replaced with a panel and fittings to allow the use of pressurized air to keep the inside of the machine clean. Pressure between 8 and 15 psi has been found to be effective at sufficiently pressurizing the housing to prevent the ingress of dust, particulates, oil vapors, and similar such as found in machine shop environments. Air entering the machine must be clean and dry. It is recommended that air coming from the compressor be passed through a filter and dryer. The filter/moisture collector provided with the kit is designed as a failsafe to prevent damage to the machine should the method to filter and clean the air from the compressor fail.
Figure 24. Inline Clean Air Kit
Perform the following checks to ensure the kit is operating properly:
• Regularly check the openings of the machine to ensure that the housing is pressurized. If air is not felt escaping from openings, increase the pressure going to the machine. Though testing has shown between 8 and 15 psi sufficiently pressurized the housing, differences in equipment and conditions might require more than 15 psi to pressurize the housing to an adequate level. Note : Excessive air pressure is not necessary. • Periodically check the filter for contaminants and appearance of filter element. If moisture is present, drain the filter by removing the black plug at the bottom of the inline filter as shown in the following figure . Should the filter element appear damaged in any way replace it immediately (Starrett part number 7010).
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