The reservoir and sight are vented to allow liquid to reach the outlet by gravity. An adjustable precision needle valve controls the flow rate; it has a friction lock to guard against loosening from vibration. Drop feeding can be observed through the glass viewing window in the valve body.
This reservoir design utilizes a permanent bond that eliminates gaskets. The unit can be filled using the aluminum swing-away filler cap. The aluminum valve contains Buna-N seals (Viton and EPDM seals are also available). A Viton o-ring creates a seal between the reservoir and fitting. This lubricator is pipe mounted using a plated steel fitting with a 3/8” male NPT thread.The diameter of the reservoir is 3 1/2” and the total height of the lubricator is 8 1/16”. It is suitable for temperatures up to 160° F.The LED is powered by two button cell batteries installed at the factory. The light activates for a few seconds each time motion is detected. Replacement batteries are commonly available as part numbers SP357 or SR44W. They may also be purchased from Oil-Rite as part number A7180-1. The batteries are accessed by unscrewing the knurled cap from the lighting unit (no tools are required). Use a magnet or rolled up tape to lift the two batteries out. Insert the new batteries with the positive end down. Hand tighten the knurled cap.NOTE: This reservoir is not for use with isopropyl alcohol. Polycarbonate reservoirs or reservoirs with aluminum endplates and Viton seals are recommended for use with isopropyl alcohol.