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GAS CHARGE
DISCHARGING THE GAS PRESSURE
THE NITROGEN GAS MUST BE DISCHARGED FROM THE
HAMMER BEFORE DISASSEMBLY!
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
over tighten!
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), and then reinstall the charge valve cap.
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