NPK E Series - Discharging the Gas Pressure

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GAS CHARGE
DISCHARGING THE GAS PRESSURE
PROCEDURE
1. Remove the charge
valve cap (M1) from the
charge valve (M). Do
not remove the charge
valve assembly!
2. Turn the NPK charge
adapter T-handle (g2) to
a full counterclockwise
position.
3. Install the NPK charge
adapter (g1) onto the
hammer charge valve
located on the hammer
gas head (L).
REMOVE THE VALVE CAP ONLY, NOT THE CHARGE VALVE
ASSEMBLY!
4. Tighten the charge
adapter cap (g6).
5. Turn the T-handle (g2)
clockwise. As the T-
handle is screwed in, a
resistance is
encountered. By turning
the T-handle, the
nitrogen gas pressure
will be indicated on the
pressure gauge (g8).
Stop turning the T-
handle when the gauge
reads pressure. Do not
overtighten!
6. Loosen the charge
adapter cap (g6)
VERY SLOWLY! The
gas pressure will
gradually decrease to
zero. When it gets to
zero, remove the cap.
7. Remove the charge adapter (g1) from the gas charge valve on the hammer gas
head (L), then, reinstall the charge valve cap.