Installation
308155U
7
Hydraulic Lines
Refer to F
IG
. 2 for the parts mentioned in the following
instructions.
•
Shut off valves (H and L): Installed in the hydraulic
supply and return lines.
•
Drain Line (W): Remove the plug (59) from the
pump adapter, and install a 1/8-27 npt(f) tube fitting
and weep tube (B), ending in a waste container.
Monitor the weepage of hydraulic fluid. If it seems
excessive or increases suddenly, the reciproca-
tor/pump seals may need to be changed. (F
IG
. 3)
•
Hose: Use a minimum 1/2” supply line (R) and mini-
mum 3/4” return line (F) on the reciprocator. Contact
your Graco representative for details of line sizing.
•
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 (10.2 MPa, 102 bar).
•
Accumulator (P): Reduces the hammering effect
caused by the motor when it reverses direction.
•
Fluid-filled pressure gauge (M): Monitors hydraulic
pressure to the reciprocator during start up. Use the
gauge for initial adjustment of the reciprocator. It
can be removed after adjustment is made.
F
IG
. 3
59
Summary of Contents for Dyna-Star 224741
Page 27: ...Notes 308155U 27 Notes ...
