Installation
34 Series 505G2 SilentFlo™ Hydraulic Power Unit
Water Inlet
Temperature
Model 505.07 Model 505.11
10.0°C (50°F) 3.8 L/m (1.0 gpm) 7.2 L/m (1.9 gpm)
15.5°C (60°F) 4.9 L/m (1.3 gpm) 9.1 L/m (2.4 gpm)
21.1°C (70°F) 6.1 L/m (1.6 gpm) 12.1 L/m (3.2 gpm)
26.7°C (80°F) 8.3 L/m (2.2 gpm) 18.9 L/m (5.0 gpm)
32.2°C (90°F) 15.9 L/m (4.2
gpm)
49.2 L/m (13.0
gpm)
A. Connect the water supply to the HPU Water In port. Connect the Water Out port to
your drain/return line.
B. A regulating valve must be adjusted according to your water temperature.
5. Initial HPU startup.
Note: The following step only applies when the HPU is first turned on after the electrical
power has been connected (see Step 2).
A. The unit is shipped with a plug in the filler cap. Remove the red filler cap plug and
install the screen in the fill port on the top of the reservoir. The screen is shipped in the
electrical enclosure.
B. Rotate the power disconnect switch to the on (|) position.
Caution:
Incorrect motor rotation at high pressure for longer than 10 seconds can cause
severe damage to your HPU.
If the pressure, as observed on the pressure gage, does not increase within 10
seconds after High is selected, stop the unit.
C. Start the HPU by pressing the Start switch.
D. Verify the motor rotation (the pump motor can start with the wrong rotation). Press
the High Pressure switch.
l If pressure begins to increase, proceed to the next step.
l If the oil pressure value shows no pressure, press the Stop button to shut
down the unit (do not run more than 10 seconds in the wrong direction).
Have a qualified electrician make a change in the electrical phase to the
motor.
E. Check for unusual noises or leaks. If a problem is found, press the Stop button. You
must correct the problem(s) before you continue.
F. If there were problems in step E, restart the HPU and select high pressure.
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