Introduction
Use this guide to rebuild or repair a faulty regulator on a Dewalt Air Compressor DWFP55126 2016.
When performing this rebuild, make sure to use the correct regulator rebuild kit. The processes are the same, but the components vary slightly. Use part numbers 5140147-52 or 5140147-53 depending on the manufacturing location.
The manifold cover screw is deeply recessed and requires a T10 driver with a long shank in order to reach.
Make sure to completely depressurize the air compressor tank before performing any repairs.
What you need
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Use a long-shank T10 driver to remove the manifold cover screw.
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Lift the cover directly up off of the gauges to remove.
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Twist the regulator control knob counterclockwise. When you feel resistance, continue to twist to break the knob free.
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Remove the knob.
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Use a Phillips #1 screwdriver to unscrew the pressure regulator assembly from inside the manifold.
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Use needle nose pliers to remove the regulator assembly.
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Install the new o-ring on the new screw fitting by sliding it over the threads. Make sure it sits flush on the head of the screw fitting, directly above the threads.
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Slide the cap and spring, cap first, into the opening on the screw fitting to complete the new regulator internals.
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To reassemble your device, follow these instructions in reverse order.
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9 Guide Comments
Any instructions for the Type 2 regulator?
My regulator does not have a gauge. It only has a "min/max" knob. Will this kit work?
Nick, I have the same compressor with the same problem. DeWalt sent me the "53 kit" and I bought the "52". Neither are correct. What did you do to fix the problem
