Checking and Replacing the Oil

The following describes how to check and replace the oil in the foreline pump and also how to replace the oil mist filter.

When the oil needs to be checked or replaced, a popup message appears that tells you that the oil must be checked or replaced. In this case, the message appears also on the status bar. When you see this message, check or replace the oil immediately.

• For DS402 
• For E2M18 (and E2M18F) 
• For MS40+ 

For DS402

The following describes how to check and replace the oil for the "DS402" type foreline pump.

Checking the Oil Level

Check the oil level and cleanliness of the oil in the foreline pump about once per month. The oil level must be within the valid range of the arrow of the oil level gauge on the side of the pump.

If the oil level is too low, add some oil. If the oil level is too high, drain the oil, until the oil level is at the suitable level on the gauge.

Checking the Cleanliness of the Oil

Check the color and cleanliness of the oil in the pump. If it is not clean, replace the oil. Refer to the following table to determine the cleanliness of the oil from its color.

Color of the oil	Action required
	You do not need replace the oil.
	It is the time to replace the oil.
	Replace the oil immediately.

 

In the case of “Anderol” oil, the oil changes color within a few weeks of use, although it remains in good condition, so the color change is not a useful indicator. Change the Anderol oil every 6 months and disregard the color.

 

Replacing the Oil Mist Filter

An oil mist filter captures oil so that the oil is not released into the air. Replace the oil mist filter once a year.

Check that the amount of the oil does not exceed the oil level on the side of the filter assembly.

If the amount of the oil exceeds the oil level, replace the oil mist filter.

Complete the following steps to replace the oil mist filter.

1. Put the instrument in Shutdown mode, and then turn off the breaker switch for the foreline pump on the back side of the instrument.
2. Remove the clamp and also the exhaust hose.
3. Remove the cover fixing screws on the filter case using a hex wrench, and remove the cover.
4. Remove the spring from the case, and remove the oil mist filter.
5. Clean the inside of the case and the cover with paper towels.
6. Check that an O-ring is attached on a new oil mist filter, and attach the oil mist filter in the case.

 

Use the Oil Mist Filter (P/N: 9499342) specified by Agilent.

 

7. Attach the spring you removed back in the case.
8. Check that an O-ring is attached on the cover, and attach the cover to the case.

Secure the fixing screws. When you secure the screws, tighten each screw a little at a time and evenly.

9. Turn on the breaker switch for the foreline pump on the back side of the instrument, and then turn on the foreline pump.

For E2M18 (and E2M18F)

The following describes how to check and replace the oil for the "E2M18" type foreline pump.

 

Click here to go to the video help for Replacing the Oil (For E2M18 and E2M18F).

 

Checking the Oil Level

Check the oil level and cleanliness of the oil in the foreline pump about once per month. The oil level must be within the range of the scale of the level gauge on the side of the pump.

If the oil level is too low, add some oil. If the oil level is too high, drain the oil, until the oil level is at the suitable level on the gauge.

Checking the Cleanliness of the Oil

Observe the oil check tag to see the cleanliness of the oil. If it is not clean, replace the oil.

 

In the case of E2M18F Pump (also referred to as the Fomblin pump), the oil (Fomblin Oil) will not change color even when it is old/dirty. Change the Fomblin oil every 6 months regardless of the color of the oil.

 

Replacing the Oil

As a result of the check, if the oil is not clean, replace it. Usually, the oil must be replaced about once every three months. But, the replacement cycle may be shortened depending on samples used in analyses and the frequency of analyses.

Complete the following steps to replace the oil. Also, watch the video on replacing the oil.

1. Put the instrument in Shutdown mode, and then turn off the breaker switch for the foreline pump on the back side of the instrument.
2. Place a container under the oil outlet to collect drained oil.
3. Open the cap of the oil inlet, and remove the cap of the oil outlet.

 

The oil might be hot. Make sure not to touch the oil to avoid a burn.

 

4. After the oil is drained completely, attach the cap of the oil outlet.
5. Pour in about a liter of new oil using a funnel.

Check that the oil level is within the scale of the oil level gauge.

 

• Use the oil specified by Agilent for foreline pumps.

• Dispose of the drained oil according to local laws and regulations.

 

6. Close the cap of the oil inlet.
7. Turn on the breaker switch for the foreline pump on the back side of the instrument, and then restart the foreline pump.

 

After you replace the oil, reset the current value of [Replace Foreline Pump Oil] to "0" on the Early Maintenance Feedback Pane.

 

Replacing the Oil Mist Filter and Deodorizing Element

An oil mist filter captures oil so that the oil is not released into the air and an deodorizing element stops the oil odor. Replace the oil mist filter once a year. Replace the deodorizing element once a year or sooner if the oil odor comes from it.

Usually, the ballast valve is opened by rotating it three and a half turns.

Check that the amount of the oil does not exceed the oil level line on the side of the filter assembly. If the amount of the oil exceeds it, replace the oil mist filter.

Complete the following steps to replace the oil mist filter and deodorizing element.

1. Put the instrument in Shutdown mode, and then turn off the breaker switch for the foreline pump on the back side of the instrument.
2. Remove the fixing screws on the oil mist filter case using a hex wrench, and remove the upper cover.
3. Remove the deodorizing element and oil mist filter.
4. Clean the inside of the case with paper towels. Clean the D-seal on the lower case and put it back to the original position.
5. Check that an O-ring is attached on a new oil mist filter, and attach the oil mist filter in the case.

 

Use the Oil Mist Filter Kit (P/N: 3162-1056) or Oil Mist Filter Element (P/N: 1535-4970) specified by Agilent.

 

6. Attach the deodorizing element.

   Put the upper cover back to the original place and secure the fixing screws.

   Use Odor Element for Oil Mist Filter (5/pk)(P/N: 50639153) specified by Agilent.

7. Turn on the breaker switch for the foreline pump on the back side of the instrument, and then turn on the foreline pump.

For MS40+

The following describes how to check and replace the oil for the "MS40+" type foreline pump.

Checking the Oil Level

 

Since the oil level depending on where the vane stops inside the pump, make sure you check the oil level during pump operation.

 

Check the oil level and cleanliness of the oil in the foreline pump about once per month. The oil level needs to be between Minimum and Maximum on the level gauge during pump operation.

If the oil level is too low, add some oil. If the oil level is too high, drain the oil until the oil is at a suitable level on the gauge.

Checking the Cleanliness of the Oil

Check the color and cleanliness of the oil in the pump. If it is not clean, replace the oil. Refer to the following table to determine the cleanliness of the oil from its color.

Color of the oil	Action required
	You do not need replace the oil.
	It is the time to replace the oil.
	Replace the oil immediately.

 

In the case of “Anderol” oil, the oil changes color within a few weeks of use, although it remains in good condition, so the color change is not a useful indicator. Change the Anderol oil every 6 months and disregard the color.

 

Replacing the Oil

Refer to "Hardware Maintenance Manual (7800/7850/7900)".

Refer to "Hardware Maintenance Manual (8900)".