Installation
4
312350L
Installation
Pump Accessories
NOTE: The reference letters in the following descrip-
tions, refer to the reference letters used in F
IG
. 2, page
6.
Follower Plate (A): Place follower plate on grease and
rotate while pressing firmly to level material. Order part
number 247700 for 60# and 90# automatic lube pump
modules; 247701 for 120# refinery reservoir; or 247702
for 400# refinery reservoir.
Pump Outlet Drain Valve (D): Helps relieve fluid pres-
sure in pump when pump is shut off. Install valve close
to pump fluid outlet. Order valve, Part No. 111229.
A pump outlet drain (D) is required in your system. This
valve helps relieve pressure in the displacement pump
and hose when shutting down system and in case of a
clogged outlet hose. Install valve close to pump outlet.
Hydraulic Power Supply
See F
IG
. 2. page 6.
The hydraulic power supply system (U) must have a
pressure reducing valve and a pressure-compensated
flow control. A flow control valve (Q) is required to limit
the incoming flow to the reciprocator to a maximum of 3
gpm (11 lpm).
Hydraulic Lines
Shut-off Valves (H, L): Installed on the hydraulic supply
and return lines. Order Part No. 108537 and 112578.
Drain Line: Monitor the weepage of hydraulic fluid or
lubricant. If it seems excessive or increases suddenly,
the reciprocator/pump seals may need to be changed.
Hoses: Use a minimum 1/2 inch supply line (R) and
minimum 3/4 inch return line (F) on the reciprocator.
Contact your Graco representative for line sizing.
Pressure Reducing Valve (N): Circulates excess
hydraulic fluid pressure back to the hydraulic power sup-
ply. Install this valve (N) in the hydraulic supply line with
a drain hose (W) teed into the hydraulic return line (F).
Limit supply pressure to a maximum 600 psi (4.1 MPa,
41 bar).
Accumulator (P): Reduces hammering effect caused
by the motor when it reverses direction.
Fluid-filled Pressure Gauge (M), Part No. 112567:
Monitors hydraulic pressure to the reciprocator during
startup. See F
IG
. 2. Use the gauge for initial adjustment
of the reciprocator. It can be removed after adjustment.
NOTE: Pressure gauge (M), pressure reducing valve
(N) and a flow control valve (Q) are included in the
Hydraulic Fluid Control Kit 247538 or 247705, which can
be ordered separately.
Maximum Working Pressure of Accessories
To reduce the risk of serious injury including fluid injec-
tion and splashing in the eyes or on the skin which may
be caused if component ruptures, all accessories
added to the reciprocator power supply side must have
at least 600 psi (4.1 MPa, 41 bar) maximum working
pressure.
All accessories added to the pump fluid outlet side
must have at least 7500 psi (51 MPa, 517 bar) maxi-
mum working pressure.
Limit Fluid Flow to Reciprocator
To reduce the risk of overpressurizing the hydraulic
reciprocator which could cause a rupture and serious
injury, including fluid injection, a hydraulic system must
have a means to limit the incoming fluid flow to the
reciprocator to a maximum of 3 gpm (11 lpm) and 600
psi (4.1 MPa, 41 bar). See description below.
