Model #919165381 CRAFTSMAN Air compressor

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  • Pump Assy
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Question and Answers

Q:

My air compressor runs but does not produce any air pressure.

A:

Your air compressor probably has something broken inside the cylinder. Disconnect the power to the air compressor and remove the plastic cover around the motor and compressor.

Before you take the compressor apart, listen and feel for air leaks. Check to see if air is coming back out of the intake filter. If air is coming back out of the intake filter, something is wrong inside the cylinder.

You can see a parts diagram at [www.searspartsdirect.com]. The parts diagram will help you locate the parts that build air pressure. These are the parts you need to inspect.

Turn the motor shaft by hand and be sure the piston goes up and down.

If the piston is ok remove the 4 screws holding the head on top of the cylinder. Remove the head.

Directly under the head is the pressure plate. The pressure plate has reeds on it that direct the air into the discharge line and keep the air from going back through the intake side of the compressor. Check the reeds for warping or breaking. If the reeds are damaged, you must replace the pressure plate. Make note of how the pressure plate sets and the o-rings

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Jimmy K -
Sears Technician
February 03, 2010
A:

The reeds are good or at least not bent or broken. Air does come back out of the air intake so whats next.

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Don -
May 13, 2012
A:

My compressor is a model number 92115310 and was working good and when it stopped building up pressure it made a popping noise.

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Don -
May 13, 2012
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