Skip to content
?
Manage My Life

Craftsman Air Compressor Model 921153101

Craftsman Air Compressor
Model 921153101
this compressor will not inflate a tire with more than 35psi.
Is this ok or is this unit defective?

Tags
Air Compressors , Craftsman , Automotive
Sign in to answer a question
3 Answers from these members:
Manage My Life
Knowing when the compressor is operating within manufacturers specifications or if there is a problem is important. While you wait for the expert to review this model and respond, I attached the online owner's manual if needed. I hope this helps.
by Manage My Life
July 12th, 2012
Answered in 6 minutes
Comment
0 votes
Mark T
Thank you for your question.

I will be happy to assist you with this problem. The first thing we need to determine is if the unit will pump up and turn off. So turn the unit on and let it run. If it will not ever turn off there is a problem in the pump. The likely problem is a worn piston ring and cylinder or leaking reed valves. If the unit will turn off I recommend turning the pressure regulator up. The regulator controls the pressure coming out of the hose. I posted the instructions in the image below that shows how to adjust the regulator. Just click on the image to enlarge it.

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

Thank you for using Manage my life.

Mark.
by Mark T Earned 1,770 community points in Craftsman
July 15th, 2012
Comment
1 votes
Greg Cruz
My unit will not go pass 25 psi. It will get there and that is all. It keeps running all the time. How will I know is that the valves are bad or the piston rings?
by Greg Cruz
July 17th, 2014
Comment
0 votes
Didn't find what you are looking for? Ask a question
Get up to
50
% off
On Air Compressors