MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-30 - Manual (Page 34)

Model 505.20 - 505.30 SilentFlo™ HPU 34
Position the 505.20/.30 HPU
Installation
Position the 505.20/.30 HPU
You should determine where to put the HPU. Becauseit is connected to the other
hydraulic equipment through hydraulic lines, the HPU can be located anywhere.
To position the HPU:
• The HPU can fit through a standard 1-m or 36-in door.
• The HPU can be moved by a fork lift, pallet jack, or dolly.
• Placement considerations should include proximity to the facility electric
power and the hydraulic components. Positioning the HPU close to the
hydraulic components can reduce the cost of hydraulic distribution.
• The HPU produces no more than 63 dB (A) of sound pressure level fully
compensated in a free field acoustic environment.
Testing the 505.20/.30 HPU
1. 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.
2. Rotate the power disconnect switch to the on (|) position.
3. Pull the Stop button so it is released from its latched position. When the
Stop button is released it enables the interlock circuit.
4. Start the HPU by turning the High/Low/Start switch to the Start position.
When you hear the pump motor run, release the switch (it will return to the
Low position).
Note The following step only applies when the HPU is first turned on after the
electrical power has been connected (see Step 2).
The first time a pump motor is started after electrical service is connected to
the HPU, it is possible for the pump motor to rotate in the wrong direction.
A pump motor rotating in the wrong direction at high pressure for longer
than 10 seconds can cause severe damage to your HPU.
If the output pressure does not increase within 10 seconds after High is selected,
stop the unit.
5. Verify the motor rotation (the pump motor can start with the wrong
rotation). Turn the High/Low/Start switch to the High position.
A. If pressure begins to increase, proceed to the next step.
CAUTION