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Author Message   Hans Schwethelm Rating: N/A Votes: 0 Posted on Thursday, November 10, 2005 - 11:53 pm:    The button on the side of my Ranger sometimes sticks, preventing the needle to be locked after a reading. Can I lube the meter button from the outside or do I need to go inside? I cannot see any screws to open the meter. Thanks for your help.