Runs approx 8 hrs a day
The dewalt model d55168 is a high-end oil-free compressor. Oil free compressors could have a short life span due to dusty or dirty conditions at the job site. The cylinder of your compressor is open from the bottom and will **** in debris scratching the cylinder/ silicone-vinyl piston ring reducing pressure. However the reduction in pressure will be over time till the point that the compressor will not reach cut-out pressure and just keep running. If you lost pressure suddenly to "0" then you probably lost the drive belt. A replacement can be found at a local dewalt service center or ordered thru www.toolpartsdirect.com. When you take down the compressor, be sure to examine the cylinder /piston for wear. These are the two most common problems. Good Luck on your repair and email if you have other questions.
Here is a parts diagram for the air compressor:
http://shoppingcart.msservicecompany.com/msservice_net/product_files/D55168/D55168_PL.pdf
There are a couple of things to look for on the air compressor.
You will need to see if the piston ring is damaged or if you have a broken reed on the valve plate.
These are typically the two most common problems with this model.
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