Model #919165600 Craftsman air compressor

  • Air Compressor
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  • Pump
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Question and Answers

Q:

919165600 wiring 240 volt

A:

I assume that this air compressor has a 120 volt power cord. This compressor is not set up to be rewired for 240 volts. I recommend that you replace the compressor if you want to run a 240 volt model.

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Lyle W -
Sears Technician
April 27, 2010
Q:

MY AIR COMPRESSOR WILL BUILD UP PRESSURE

A:

Thank you for your question.

I am sorry you are having a problem with the air compressor. I think you meant to say the air compressor would not build pressure. 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 that seal around it.

Remove the pressure plate and inspect the plastic sleeve inside the cylinder. Look for scratches or cuts in the sleeve. Make note of the piston and the rubber o-ring around it. If the o-ring is worn of broken, the air goes back through the intake filter and no pressure is built. If you have to replace the o-ring, replace the piston and sleeve also.

To replace the o-ring and sleeve, you have to remove the nut that holds the piston to the motor shaft. When you replace the nut, you must torque it to 85-90 foot pounds. Torque the head bolts to 7-10 foot pounds.

I hope this is helpful please let me know if you need further assistance.

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
April 19, 2012
Q:

My air compressor pumps up slow and wont go past 90 psi's. It constantly runs.

A:

Your air compressor probably has something broken inside one or both cylinders. 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 pistons go up and down.

If the pistons are ok remove the discharge tube from the compressor and start the compressor. Try to hold your thumb on the discharge of each cylinder. If one blows your thumb off, and one has little or no pressure you know which cylinder has the problem. You should disassemble and inspect both cylinders for damage or broken parts.

To disassemble the cylinders remove the 4 screws holding the heads on top of the cylinders. Remove the heads.

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 that seal around it.

Remove the pressure plate and inspect the plastic sleeve inside the cylinder. Look for scratches or cuts in the sleeve. Make note of the piston and the rubber o-ring around it. If the o-ring is worn of broken the air goes back through the intake filter and no pressure is built. If you have to replace the o-ring, replace the piston and sleeve also.

To replace the o-ring and sleeve, you have to remove the nut that holds the piston to the motor shaft. When you replace the nut you must torque it to 85-90 foot pounds. Torque the head bolts to 7-10 foot pounds.

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Jimmy K -
Sears Technician
October 06, 2009