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AUTOLUBE / UNDERWATER PORT
IDENTIFICATION
NPK GH Series Hammers are equipped with two ports on the spacer section (J) below
the main valve for use in adapting for AUTOLUBE and underwater use. The air port
(17) on the left will allow the connection of an airline that will allow the hammer to be
used underwater. The grease port (18), located inline with the air port, on the right will
allow for AUTOLUBE connection.
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