Slideway / Grease Lubrication Alarm

Way-oil tank ran out. Refilling clears the alarm, but if it ran completely empty there is air in the lines and the alarm can persist for a couple of hours while the pump cycles the air out.

• cnctoolcatforum

  As Lyk stated, if you let it run completely out, sometimes you get air in the lines and it can take a while for the air to work itself out. If you continually get the alarm or the alarm starts getting more frequent, it's…

On grease-lube machines (Quick Turn Smart, etc.) air bubbles in the threaded accordion grease lines cause intermittent 260. The pressure switch sees momentary drops as the pump tries to push grease past the bubble.

• Kingbobforum

  I get this from time to time if there are air bubbles in the lines. I am assuming you have the accordion style threaded grease tubes? If so look about an inch down from where it threads in for a grease zerk. Press the wr…

A chip or piece of debris has nicked a rubber grease/lube line under the way covers, creating a slow pressure leak that the pressure switch detects intermittently.

• Kingbobforum

  You could also have a busted line, I had this on a 510c mill. A single chip made its way under the covers and up against one of the rubber (?) hydraulic lines for the grease and made just a large enough hole for it to de…

Tiny metering orifices at each lube point can clog; a sticking float in the tank can also trigger the alarm.

• (thread reply)forum

  And most likely there is a tiny oil metering thingy at the end of each line. It will only allow a small bit of oil to flow at each point before stopping the flow. ... Alarm can also come from a sticking float.