6
STA-CK-SKK
Operating Instructions available online
Only use “gas approved" test hose
For use with nitrogen (N
2
) gas only
Safety goggles must be worn at all times
STAUFF pressure gauges are safety pattern type according to AS1349
Applying the Pre-charge Pressure (Accumulator has no gas)
Charging Valve Connected Directly to Regulator
Typical Installation
Remove any plastic plugs that are fitted to the accumulator fluid port. Remove the accumulator gas valve protection cap and gas valve screw
cap fitted to the gas side of the accumulator. Prepare a container to catch any fluid which may drain from the fluid port during charging.
Refer to page 4 for connection flow chart
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Ensure regulator used is fitted with STAUFF SKK test coupling (2)
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Make sure main valve on nitrogen gas bottle is closed
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Connect SDA adaptor end (C) of charging valve to SKK test coupling (2) fitted on regulator
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Connect gauge + adaptor (3) to charging valve (A)
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Connect the test coupling on one end of the hose to the SKK gas valve coupling (F) on the accumulator
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Connect the other end of the hose 1/4” BSPP to the charging valve (B) and tightened with a spanner
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Slightly open the valve on the nitrogen gas source until a small amount of gas can be heard coming from the bleed valve (D) which
should be open
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After 5 seconds (0.7 Ltr - 4 Ltr) and 10 to 20 seconds (10 Ltr - 55 Ltr) slowly close the bleed valve (D), allow pressure to increase
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Slowly increase the pressure from the nitrogen gas source by opening its valve until the indicated pressure increases to the desired
setting. Wait until temperature and pressure are stable, and if needed increase the pressure again to the required setting. When the
pre-charge pressure (P0) is reached and stabilised, close the valve of the nitrogen gas source
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Disconnect the hose end connected to the SKK gas valve coupling (F) and then disconnect from the charging valve (B)
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Remove the gauge and adaptor (3) from the charge valve (A) and then attach it to SKK gas valve coupling (F) on the accumulator.
Check to ensure the pre-charge pressure is correct.
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After confirming the pre-charge pressure is correct, remove the gauge and gauge adaptor (3) from the SKK gas valve coupling on
the accumulator (F)
Important:
Whilst the gas hose (4) is connected to the SKK gas valve coupling (F), the SKK gas valve coupling is always open. Before
attempting to remove any of the charge equipment, the gas hose (4) connected to the SKK gas valve coupling (F) must first be
removed. Failure to do so will drain the nitrogen gas pressure from the accumulator.
