Mts Series 505G2 SilentFlo Hydraulic Power Unit Model Manuel d'utilisateur télécharger pdf (Page 42)

Model 505G2.07/.11 SilentFlo™ HPU

Recovering from an Interlock

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. Start the HPU in low pressure at your controller.

5. 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.

6. 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.

7. 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.

8. Stop the HPU with the controller.

Recovering 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.

Hyd fluid

overtemperature

A hydraulic fluid overtemperature interlock is indicated on the Main screen by a

flashing red Faulted indicator, a blue Bypass indicator, a red Oil Temp indicator,

and a blue Status indicator. The interlock is generated when the temperature

exceeds 55°C (131°F). The interlock will automatically shut down the HPU. The

HPU cannot return to normal operation until the fluid has cooled. Perform the

following to correct an overtemperature interlock:

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Mts Series 505G2 SilentFlo Hydraulic Power Unit Model Manuel d'utilisateur Page 42

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