When
At regular intervals
When you installed the pump head during maintenance procedures
After you replaced the metering device head
Items required
Syringe (12 mL)
Seal wash liquid
Follow these steps
Disconnect the tubing from the seal wash detector.
No. | Description |
|---|---|
1 | Seal wash detector |
2 | Tubing connection port (port labeled in) |
Insert a syringe into the open end of the tubing.
To allow the liquid to travel easily through the seal wash system, lift up the lever of the seal wash pump and hold it in that position with one hand.
Pull out the syringe plunger to draw seal wash liquid into the syringe.
When about 10 mL of liquid are present in the syringe, release the lever of the seal wash pump.
Take the seal wash reservoir line above the metering device head and squeeze the tubing to block it.
Slightly press the syringe plunger to apply some pressure to the seal wash system.
Check whether liquid escapes from the connections of the seal wash system, under the pump heads or under the metering device head.
Observation | Remedial Action |
|---|---|
Leakage is present at a connection | 1. Tighten or replace leaky connections. 2. Repeat the test. |
Leakage is present under the pump heads | 1. Check that the pump head seals and the seal wash seal are properly installed. 2. Repeat the test. |
Leakage is present under the metering device head | 1. Check that metering device head is installed properly. If leakage is still present, replace the metering device head. 2. Repeat the test. |
No leakage is present | Remove the syringe and reconnect the tubing to the seal wash detector (port labeled in). |