Graco 3A0591U Ram Packages Manual De Usuario
Operation
3A0591U
15
Starting and Adjusting the Ram
1.
Close all air regulators and air valves.
2.
Turn on the main air supply.
3.
Open the main air valve (BA), and set the ram direc-
tor air regulator (BB) to 2.8 bar, 0.26 MPa (40 psi).
Set the director valve (BC) to UP and let the ram
rise to its full height.
tor air regulator (BB) to 2.8 bar, 0.26 MPa (40 psi).
Set the director valve (BC) to UP and let the ram
rise to its full height.
4.
Lubricate inflatable seal (C) with sanitary lubricant.
5.
Set a full drum of fluid on the ram base, slide it back
against the tube stop, and center it under the fol-
lower plate.
against the tube stop, and center it under the fol-
lower plate.
6.
Remove the drum cover, and smooth the surface of
the fluid with a straightedge.
the fluid with a straightedge.
7.
Secure the bag liner to the drum with tape or a
strap, to prevent it from sliding into the drum.
strap, to prevent it from sliding into the drum.
8.
Set the director valve to DOWN. Set ram air regula-
tor at about 40 psi (0.28 MPa, 2.8 bar). Lower the
ram until the ram plate is about to enter the drum,
and set the valve to neutral. Reposition the drum as
necessary so the inflatable seal does not hit the
drum lip.
tor at about 40 psi (0.28 MPa, 2.8 bar). Lower the
ram until the ram plate is about to enter the drum,
and set the valve to neutral. Reposition the drum as
necessary so the inflatable seal does not hit the
drum lip.
NOTE: Enclosed Controls: To increase or decrease
the speed of downward travel on the ram plate, adjust
the valve on the muffler (BN) inside the control box. See
F
the speed of downward travel on the ram plate, adjust
the valve on the muffler (BN) inside the control box. See
F
Exposed Controls: To increase or decrease the speed
of downward travel on the ram plate, adjust the director
valve (BC).
of downward travel on the ram plate, adjust the director
valve (BC).
9.
Set the director valve to DOWN, and continue to
lower the ram until the ram plate contacts the fluid.
lower the ram until the ram plate contacts the fluid.
10. Set seal air pressure regulator to pressure deter-
mined in Setting Inflatable Seal Pressure, page
14. Set the inflatable seal switch to On to inflate
seal.
14. Set the inflatable seal switch to On to inflate
seal.
NOTE: If fluid leaks past the seal, increase the air pres-
sure to the seal gradually until leaking stops. To prevent
overpressurization, a relief valve limits seal pressure to
30 psi (2.1 bar, 0.21 MPa).
sure to the seal gradually until leaking stops. To prevent
overpressurization, a relief valve limits seal pressure to
30 psi (2.1 bar, 0.21 MPa).
• Do not inflate the seal when not installed on the
follower plate. Wear safety glasses when
operating the seal. Seal burst could result in
injury.
operating the seal. Seal burst could result in
injury.
• Keep hands and fingers away from the ram plate,
pump fluid inlet, and lip of the fluid container
when raising or lowering the ram to reduce risk of
serious injury from moving parts.
when raising or lowering the ram to reduce risk of
serious injury from moving parts.
NOTICE
Do not use drums that have side bungs or large dents
with this ram. Rough bung openings or large dents will
damage the inflatable seal or stop the ram plate, result-
ing in a runaway pump.
with this ram. Rough bung openings or large dents will
damage the inflatable seal or stop the ram plate, result-
ing in a runaway pump.