How do you charge an accumulator that does not have a depressing pin in the valve stem (Figure 1)?
Figure 1 – Accumulator charging valve stem
The MS28889-2 does not have a spring loaded valve stem in it. Its dual nuts on top open and close the internal metallic valve. The charging kit has a 1/8 npt valve on it which will screw on the top of the valve stem (Figure 1).
Figure 1 – The accumulator valve connected to the charging kit valve.
Here is the valve stem closed (Figure 2).
Figure 2 – Valve stem in closed position
Connect the accumulator charging valve. By using 2 wrenches, hold the bottom nut stationary and loosen the top nut. This will open the valve stem (Figure 3)
Figure 3 – Valve stem in the open position