OGSI MOGS - 100, Installation, Operation And Maintenance Manual

Page: 54 / 67

Effective 11/2010 48
Attaching and Filling Additional H/K size Cylinders:
Start by fixing the Auxiliary Cylinder Filling Manifold to a wall or other stable structure near
the MOGS machine. Then connect the manifold to the Lower Auxiliary Oxygen port on the
left side of the MOGS unit using the high pressure interconnecting line provided by
OGSI
or
your manifold supplier. Make sure the cylinder valves on the two (2) reserve cylinders already
connected are closed and that the manifold line is de-pressurized when you begin to make use
of this connection. Next, with all valves initially closed, connect the steel-braided pigtail
connection whip between a manifold valve and a cylinder valve, and tighten both connections
using a 1
1
/
8
”
wrench. These are all CGA 540 Valve adapters. Slowly open the cylinder valve
and then the manifold valve. Fully open both valves, backing off
¼
turn to prevent the valve
from sticking in the open position and appearing closed. At this point, the gauge on the top of
the manifold will read the pressure contained within the cylinder. Cylinder filling can be
initiated by starting the machine (
See Start-up Procedures on Page 27
). It is also
recommended by OGSI that these external cylinders be wall mounted or secured in a cart to
make sure they are not bumped over or accidentally tipped. If they fall over and the valve
breaks off, the cylinders will become projectiles and serious injury or death could occur.
Detaching a H/K-type cylinder:
With the machine turned off, close each of the appropriate manifold and cylinder valves.
Warning:
Oxygen under high-pressure is present. The use of safety glasses and hearing
protection is required.
Slowly disconnect the steel whip from the cylinder valve, using
1
1
/
8
”
wrench. Be aware
of the venting of oxygen under high pressure. If difficulty is encountered while
attempting to remove the steel whip, open the appropriate manifold valve and then slowly
open the bleed valve to vent the pressure. This will allow easier removal of the steel
whip. Ensure that both manifold and bleed valves are closed after venting pressure.
Attaching and filling smaller cylinders in the blast containment chamber:
Smaller cylinders (D, E or M size) can be filled from the reserve bank of larger H/K-type
cylinders at anytime, even if there is no power to the machine. If the machine is operating,
the reserve bank can be closed off and the small cylinders can be filled directly from the
machine. This takes a little longer, but it conserves the reserve bank. Start by opening the
door to the blast containment chamber (push the green bar down) and set the cylinder in one
of the two fill chambers. Connect the small cylinder to the filling whip. These whips and the
small cylinder should both have
CGA 870
Valve adapters. Then open the valve to the
appropriate fill port on the control panel. If the machine is filling the small cylinder directly,
it will shut off when the cylinder is full. If you are trans-filling from the reserve bank,
observe the pressure indicator to see when the small cylinder is full. Be sure to close the
cylinder valve and reserve bank valve before trying to remove the small cylinder from the
filling whip.
Warning:
Oxygen under high-pressure is present. The use of safety glasses and hearing
protection is required. Disconnect the steel whip following the procedure outlined in
„ Detaching a H/K-type cylinder’ above.