Model #875199300 CRAFTSMAN Wrenches and Accessories

  • Ratchet Wrench
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Air tools Diagnosis and Parts recomendation ?


I am sorry to hear that you are experiencing some difficulties with your air tools. The ManageMyLife website is a great place to find answers to questions that need qualified and insightful responses. Some of these questions that are asked will need specific research and will be answered by an expert with-in two business days but usually sooner. I did find this expert response that might help.

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James -
April 10, 2013


Thank you for your question and I understand your concern.

If there is not enough air pressure supplied to the air ratchet and impact wrench, the units will operate and only allow air to exhaust when the trigger is pulled.  Check the air compressor air pressure; the air tools require a maximum of about 90 PSI at 2-5 CFM.

 The impact wrench and air ratchet might need lubrication. To manually lubricate, disconnect the tool from the air line. Depress the trigger and put 3-4 drops of air tool oil (you can use sewing machine or 3 in 1 oil) into the air inlet fitting. Run the tool for 30 seconds and the oil will be distributed through the tool. 

If it will not operate at 90 PSI after oiling, then it could have leaky seals or the rotor is seized. The units would have to be carefully dis-assembled paying close attention to the location and order of the parts. 


Your best solution is to take them both in for repair/service. If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician.  Here is a link that will provide the nearest drop-off locations:  Sears Home Services



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Joey S -
Sears Technician
April 12, 2013

i have the same problem with my 875199840 but it leaks air without pulling the trigger wont work

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robert -
August 16, 2015
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