Question about Chicago Pneumatic 1" Cp797 Air Impact Wrench Standard

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On the CP-797, do you put oil in the hammer case?, there is a small plug up front.

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Some of the early CP797 used grease, the current models use oil.
To identify your tool look at the front of the hammer case where the anvil is located and look for a seal (item# 115) if it is present then you tool uses oil, the manual states that the tool requires 6 ounces of SAE30 oil use non detergent type.
Follow this link for the owner's manual:
http://etools.cp.com/cpvscatalogue/files/CA155616.pdf

Posted on Aug 31, 2014

  • emilio cruz
    emilio cruz Aug 31, 2014

    Some of the early CP797 used grease, the current models use oil.

    To identify your tool look at the front of the hammer case where the anvil is located and look for a seal (item# 115) if it is present then you tool uses oil, the manual states that the tool requires 6 ounces of SAE30 oil use non detergent type.

    Follow this link for the owner's manual:

    http://etools.cp.com/cpvscatalogue/files...

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