45
Part No. 6-847703-00 Rev. C00
1. Verify following:
• At least one liquid container is open on left
bank of manifold.
• At least one high-pressure cylinder is open
on right bank of manifold.
• Power supply “RESERVE IN USE” light is
not illuminated.
• At least one high-pressure cylinder is open
on high-pressure reserve header.
2. Close liquid containers and high-pressure
cylinders on both banks of manifold.
3. Slightly open vent valve to create a small flow
of gas through manifold. Left bank front panel
bank pressure gauge should begin to drop.
Adjust vent valve so that gauge drops very
slowly.
4. As left bank is depleted, manifold should
switch to right bank. Right bank front panel
bank pressure gauge should drop very slowly.
5. As right bank front panel bank pressure gauge
reading drops below 125 PSI (250 PSI on
some models), intermediate pressure gauge
located on right bank regulator will also begin
to drop.
6. Note intermediate pressure reading (as
indicated on right bank regulator gauge) when
power supply red “RESERVE IN USE” light is
illuminated . Recommended settings are
listed in Table 1, page 27 (Reserve In Use
Switch).
7. Close vent valve.
8. If switch adjustment is necessary, slide collar
of switch toward wires to access internal
adjustment barrel. Insert tip of small
screwdriver into adjustment barrel and rotate
barrel (Figure 26).
NOTE:
When viewing switch from wire end, rotating
barrel clockwise will raise switch setting. A
counterclockwise rotation will lower switch
setting. Make small adjustments and retest as
follows:
Reserve Header Regulator Adjustment
The following procedure describes process of
setting reserve header high-pressure regulator.
This procedure should only need to be performed
if regulator setting was not within acceptable limits
during performance verification procedure. Refer
to Figure 19 and 20 for location of components
called out in this procedure.
1. Verify only one high-pressure cylinder is open
on high-pressure reserve header.
2. Close liquid containers and high-pressure
cylinders on both banks of manifold.
3. Slightly open vent valve to create a small flow
of gas through manifold. Flow gas through
manifold until pressure on both manifold
banks has been depleted and red “RESERVE
IN USE” light on power supply illuminates.
4. Using 6mm Allen wrench, turn reserve header
regulator adjusting screw for an appropriate
output pressure gauge reading.
Recommended settings are listed in Table 1,
page 27 (Reserve Header Regulator).
5. Close vent valve.
9. Slowly open one high-pressure cylinder on
right bank of manifold.
10. Close high-pressure cylinder on right bank of
manifold and repeat steps 3 through 9 until
pressure switch has been set within
acceptable limits.
11. Slide pressure switch collar back to original
position.
Testing and Adjustments
