DeZurik APCO CVS-6000 Installation, Operation And Maintenance Manual - Page 13
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Oil Filling Procedure
See Figure 6 for part identification. Recommended Oils: Motor oil SAE 20, Mobil DTE 24, Castrol
Hyspin AW 32.
Series 6000B Valves
Step 1: Hydro-pneumatic tank (32)
1. Shut down pump.
2. Release pressure of hydro-pneumatic tank and remove pipe plug located on the side of the
tank and also either the Pressure gage (32B) or Air Valve (32A).
3. Fully open Flow Control Valve (41) and slowly fill cylinder with oil until it spills out of the side
port. This is the oil fill level.
4. Replace both fittings and pressurize tank according to the formula;
5. Set flow control valve three (3) turns counterclockwise from fully closed position.
6. Start pump and observe if buffer rod (33) extends. If not, while valve is still open add more
pressure in increments of 5 PSI until rod fully extends.
Step 2: Oil Reservoir (27)
1. Start pump.
2. Fully open Flow Control Valve (41A).
3. Remove side pipe plug and Breather Cap (26) and slowly fill with oil until it spills out of the
side port.
4. Replace both fittings.
5. Shut down pump.
NOTE: The Oil Reservoir should always be under atmospheric condition at all times.
December 2012
APCO CVS-6000 Swing Check Valves
Tank pressure = Line pressure + 5 psi
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DeZURIK
D12006