The closed system Opto-Mtic oilers have an adjustment range from 9/32" to 1-1/32" inches above the centerline of the mounting hole. Because it is a combination viewport and constant level oiler, the Watchdog oiler must be mounted on the centerline of the oil level to be maintained. For this reason, it is not adjustable.

Posted in: Opto-Matic Closed System Oiler

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