MTS Series 505G2 SilentFlo Hydraulic Power Unit Model 505G2-180 - Manual (Page 62)

2. If not already displayed, press the Main button to display the Main screen.
3. Verify that the Remote Operation button is green. If the button is not green, press the button to change it
to green (indicating remote mode).
4. Verify that at least one pump is enabled. Enable additional pumps as necessary.
5. Start the HPU in low pressure at your controller.
6. Check the HPU for leaks and unusual sounds. Stop the HPU immediately if leaks or unusual sounds are
noted. Determine the cause and fix the problem before restarting the HPU.
7. Select high pressure at your system controller.
Note:
If the HPU generates an interlock during operation (low fluid level or high temperature), the HPU
will be stopped. Once the cause has been corrected, press the Reset button on the HPU user
interface before restarting.
8. Run the HPU for about 30 minutes or until the hydraulic fluid is up to operating temperature [typically
43–49°C (110–120°F)] before using your test system.
9. Stop the HPU with the controller.
Recover From an Interlock
This section describes how to reset each type of HPU interlock. If a fault occurs (Low Level, Over temperature,
Dirty Filter), the HPU will not start. You must determine the source of the interlock and correct the cause
before using the HPU.
If the Main screen is selected, the presence of a fault condition is evident by one of the fault or alarm indicators
and a blue Status indicator. Other indicators can be lit depending on the interlock.
Click on the Status button to display the Status screen and identify the fault conditions.
Hyd Fluid Low Level
A low fluid level interlock is indicated on the Main screen by a red Faulted indicator, a red Oil Level indicator,
and a blue Status indicator. The interlock is generated when the hydraulic fluid falls below the setting of the
low level switch mounted through the top of the reservoir. Perform the following steps to correct a low level
interlock:
1. Determine the cause for the low fluid level and correct it.
2. Add hydraulic fluid to the reservoir until the sight glass on the side of the HPU indicates the proper level.
3. Verify that the hydraulic fluid level sensor is detecting the proper fluid level.
4. Press Reset to clear the interlock and change the unit status back to normal.
62 Series 505G2 SilentFlo™ Hydraulic Power Unit Product Information
Operation