Running The Leak Test; Shutting Down The System; Purging The Gas Sections - Haskel Q-Drive QGD Series Installation, Operation And Maintenance Manual

Running the Leak Test

It's highly recommended to the user to perform the leak test when operating the system, especially
each time the system is turned on.
1. When the system is running, tap Settings and Operator Parameters.
2. Tap Press To Pause to pause the pump.
3. To check for gas leaks, increase the supply gas pressure to 500 psi.
4. Wait up to 2 minutes for the Non-Explosive Process Media to equalize.
5. Bubble Test the system for Non-Explosive Process Media leaks.
6. Check for coolant leaks by visual inspection.
7. Bubble Test for air leaks in the shop air supply line to the system.

Shutting Down the System

1. Tap the Stop button on any screen, which does the following:

Stops the pump and returns the pistons to park position.

Isolates inlet and outlet Non-Explosive Process Media.

Vents the system.
2. Close the air supply valve.
3. Close the coolant supply valve.
4. Turn off main power switch.

Purging the Gas Sections

Purging the system is typically done after maintenace of the Gas Sections, or for some applications,
after each run. The purging does not have to be done unless it is desired. The following two
procedures dercibe alternate methods of purging. Before you begin, the maximun inlet pressure is
200 psi (13.8 Bar).
If desired to purge with media other than proccess media, then follow this procedure:
1. Locate the purge port at the rear of the system. See "Attaching Air, Gas, and Coolant Lines."
2. Open the left panel of the cabinet and locate the Needle Valve.
3. Be sure to isolate the Main Media Inlet port.
4. Turn on the power.
5. Log in using the Service account.
6. Tap Settings, then tap Service.
7. On the Service screen, tap Press to Pause.
8. Press Start.
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