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WARNING
Mount the pump securely so that it cannot move
around during operation. Failure to do so could
result in personal injury or equipment damage.
NOTE: Refer to Fig. 1 to locate the parts mentioned
below.
CAUTION
Keep the Hydraulic System Clean
The hydraulic supply system must be kept clean at
all times to reduce the risk of damaging the recip-
rocator hydraulic power supply. Blow out all hy-
draulic lines with air, flush thoroughly with solvent,
and then blow out with air again before connecting
the lines to the reciprocator.
Always plug the hydraulic inlets, outlets and lines
when disconnecting them for any reason to avoid
introducing dirt and other contaminants into the
system.
Carefully follow the manufacturer's recommenda-
tions on reservoir and filter cleaning, and periodic
changes of hydraulic fluid.
Hydraulic Power Supply
WARNING
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, the hydraulic
system must have a means to limit the incoming
fluid flow to the reciprocator to a maximum of 3
gpm (11 lpm) and 1500 psi (10 MPa, 102 bar). See
the description below.
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).
NOTE: A supply line shut-off valve (L), pressure gauge
(M), pressure reducing valve (N), and a flow control
valve (Q) are included in the Hydraulic Fluid Control Kit
236864, which can be ordered separately.
6
308156
Installation
Hydraulic Lines
D
D
Fig. 2
D
D
D
D
Shut-off valves (H and L) are installed in the
hydraulic supply and return lines. Order Part
No. 108537.
Drain Line: Remove the plug (59) from the
pump adapter and install a 1/8" diameter weep
tube (B), ending in a waste container. Monitor
the weepage of hydraulic fluid. If it seems
excessive or increases suddenly, the
reciprocator/pump seals may need to be
changed. See Fig. 2.
Hoses: Use a minimum 1/2" supply line (R)
and minimum 3/4" return line (F) on the
reciprocator. Contact your Graco
representative for details of line sizing.
A pressure reducing valve (N) circulates
excess hydraulic fluid pressure back to the
hydraulic power supply. 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 of 1500 psi
(10 MPa, 102 bar).
An accumulator (P) reduces the hammering
effect caused by the motor when it reverses
direction.
A fluid-filled pressure gauge (M), Part No.
112567, monitors hydraulic pressure to the
reciprocator during startup. See Fig. 1. Use
the gauge for initial adjustment of the
reciprocator. It can be removed after
adjustment is made.
59
06146B
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