Flowserve ARG Series Standard Actuator - Manual (Page 9)

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User Instructions ARG Series Standard Actuator - ACENIM0123-00 12/12
4.2.4 Bolt up the cylinder flange on the thrust base of the
Spring Module using the using the lock washers and
nuts from override mounting kit.
4.2.5 Thread in the hydraulic connector into the cylinder port
and connect it to the power pack, as per the schematic.
4.2.6 Fit the 3 way valves supplied in the mounting kit, to the
pressure module’s ports, as per the schematic.
4.2.7 Fill to level, hydraulic fluid (ISO 32 grade for general
application) in the power pack reservoir, in the full re-
tracted position of the piston.
4.2.8 Verify the maximum hydraulic pressure setting for the
actuator model (refer table), close the pressure release
valve on the pump and operate the hydraulic pump to
start the ram movement. Lightly loosen the air vent
screw on the cylinder flange to bleed off air from the
hydraulic lines. The ram touches the Pull Rod’s end
face and pushes the pull rod, effecting the override.
4.2.9 Adjust the overload valve setting on the pump to en-
sure the pressure does not grossly exceed the Hydrau-
lic pressure setting for the actuator, at the end of the
stroke when the stopper bolt gets loaded.
4.3 Operation –SR Override
4.3.1 To operate the override, turn the 3/2 way valve on pres-
sure module to vent the cylinder port to atmosphere and
Close the pressure release valve, PRV (provided either
externally or integral with the hand pump). Operating the
Hand Pump on the power pack pushes the pull rod, com-
presses the spring and operates the valve.
4.3.2 Opening the pressure release valve, PRV releases the hy-
draulic pressure and the spring returns the actuator to fail
safe state and the piston rod of override cylinder to retracted
position.
4.3.3 To restore normal Automatic operation, turn the PRV
to Open and switch the 3/2 way valve in position to
connect cylinder port to air supply pressure.
4.4 Install hydraulic override on Standard DA heavy
duty actuator
4.4.1 Remove the DA cover plate from the torque module
and mount the DA hydraulic override cylinder assem-
bly with the mounting kit and flange O-ring in the face
groove.
Hydraulic Pressure Settings for SR Models, psi
Model
Spring Module
1 2 3 4 5 6 7 8
ARG3 1550 2000 2400 2850 3000 3000 3000
ARG4 1350 1580 1950 2200 2450 2900 3000 3000
ARG5 1200 1680 2000 2300 2900 3000
ARG6 1000 1550 1900 2200 2500 2800
ARG7 1050 1750 2000 2350 2800 3000
ARG8 1150 1800 2300 2700 2900 3000
Hydraulic MOP: 3000 psi
Piston rod/pull Rod Torque
Hex Size, A/F 18 18 24 30 36 46 65 85
Tightning
torque
ft Lb 30-35 35-45 50-60 60-75 75-85 100-140 175-200 200-240
kgm 4-5 4-5 7-8 8-10 10-12 13-19 24-28 28-33
Fig.: 2 Install Hydraulic Override (SR)