Installation
32 Series 505G2 SilentFlo™ Hydraulic Power Unit
This section describes how to install the Series 505 Hydraulic Power Unit (HPU).
The HPU is designed for indoor use. The HPU should be stored and installed indoors.
Install the HPU
1. Position the hydraulic power unit.
Determine where to put the HPU. Review the following:
l The HPU can fit through a standard 1-m or 36-in door.
l The HPU can be moved by a fork lift, pallet jack, or dolly.
l Placement considerations should include proximity to the facility electric power,
water, and the hydraulic components. Positioning the HPU close to the hydraulic
components can reduce the cost of hydraulic distribution.
l The HPU produces no more than 60 dB (A) of sound pressure level fully
compensated in a free field acoustic environment.
l Connect the electrical service to the HPU.
Note: Local electrical codes supersede any information found here.
2. Electrical connections must be made by qualified personnel and conform to local codes and
regulations. The electrical box has a power disconnect switch that must be off (O) in order to
open the electrical box. An electrical service panel to provide the electrical power feed (line
voltage) to the HPU is not necessary, but may be required by local electrical codes.
A. Connect the three electrical power feed wires to the input lugs of the power
disconnect in a clockwise phase orientation as indicated by the L1, L2, and L3 labels
shown in the following figure (the Model 505.07/.11 high voltage configuration is
shown).
Caution:
Incorrect motor rotation at high pressure for longer than 10 seconds can cause
severe damage to your HPU.
It is imperative that you verify proper motor rotation to assure proper operation
of the HPU and to prevent damage to the HPU.
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