Agilent Community
Agilent Community
  • User
  • Site
  • Search the Community
  • User
GC/MS Portal
  • Agilent Knowledge Portal
GC/MS Portal
GC/MS Articles Foreline Pump Oil change for GC/MSD Systems
  • GC/MS Articles
  • GC/MS Videos
  • GC/MS Forum
  • More
  • Cancel

Browse the Agilent Knowledge Portal

  • Chromatography
    • Gas Chromatography
    • Liquid Chromatography
  • More
  • Cancel
  • GC/MS
  • More
  • Cancel
  • Spectroscopy
    • Atomic Absorption
    • ICP-OES
  • More
  • Cancel
  • Automated Electrophoresis
  • More
  • Cancel
  • Software and Informatics
    • OpenLab CDS
    • MassHunter
  • More
  • Cancel
  • -GC/MS
    • +GC/MS Operation
    • -GC/MS Maintenance
      • How to Open the Side Plate of the GC/MSD
      • How to Remove and Reinstall 5977 GC/MSD Ion Sources (EI/CI/HES)
      • How to Disassemble and Assemble the 5977 EI SST and Inert Ion Sources
      • How to Disassemble and Assemble the CI Source
      • How to Clean the EI/CI Source in the Agilent 5977A/B
      • How to Disassemble and Assemble the HES (High Efficiency Source)
      • How to Clean the HES (High Efficiency Source)
      • How to Replace the Electron Multiplier Horn - 5977 Series GC/MSD
      • How to Bake Out an Agilent GC/MSD
      • Foreline Pump Oil change for GC/MSD Systems
      • How to Reset the Pump Oil EMF Counter of the Agilent GC/MSD
      • Refilling the EI Calibration Vial for the Agilent 5975 and 5977 Series GC/MSD
      • Refilling the CI Calibrant Vial for the Agilent 5975 and 5977 Series GC/MSD
    • +GC/MS Troubleshooting

Foreline Pump Oil change for GC/MSD Systems

Created by jinhoshin jinhoshin 1 month ago | Last modified by Carlos Vargas Carlos Vargas 9 days ago

This Information Applies To: Agilent 5975 and 5977 Series GC/MSD with Foreline Pumps model Duo 2.5 or Duo 3


Issue

Procedure to replace oil pump in GC/MSD systems with a rotary vane pump. For optimal performance, execute this maintenance every six months.


Items Required

  • Foreline pump oil (AVF 45 platinum, 1 qt: p/n 5191-5851)
  • Funnel (p/n 9301-6461) or equivalent
  • Gloves, oil-free and solvent-resistant
  • Screwdriver, flat-blade, large or equivalent
  • Drain plug O-ring (if necessary) (p/n 0905-1515)
  • Hex key to remove drain plug (5 mm for Pfeiffer pump, p/n 8710-1838)

Steps to follow


Note:
Before this procedure, you must complete the GC/MSD vent process and ensure the foreline pump (Figure 1) is in a safe accessible location.

 Warning 
Warning: Temperature Hazard the foreline pump can cause burns if touched during operation. Allow the item time to cool and wear appropriate personal protective equipment.

 Warning 
Warning: Chemical Hazard, old oil may contain chemicals that may cause adverse reactions. Treat as hazardous waste and use appropriate personal protective equipment

       

Figure 1: Pfeiffer Duo Foreline Pump
1. Oil mist filter, 2. Fill cap, 3. Oil level line, 4. Drain plug

Draining the foreline pump oil

  1. If necessary, slide the foreline pump to a safe, accessible location. The foreline pump may be located on the floor, on the lab bench next to the MSD, or under the analyzer chamber at the back of the MSD.
  2. Remove the fill cap (Figure 1). Use a flat screwdriver to lose it.
  3. Place a container under the drain plug. (Figure 2)
  4. Remove the drain plug with the help of the hex key. Allow the pump oil to drain out. The oil drains faster when it is still warm. (Figure 2)
    If necessary, you can place a book or other object under the pump motor to tilt it up slightly.

 

Figure 2: Draining the foreline pump oil

Refilling the pump oil

  1. Reinstall the drain plug. (Figure 3)
    If the old O-ring appears worn or damaged, replace it. 
  2. Remove the propping object from under the pump motor.
  3. Add foreline pump oil until the oil level in the window is near, but not above, the upper line. (Figure 3)
    The foreline pump requires approximately 0.28 L of oil. Drain
    the foreline pump
  4. Wait a few minutes for the oil to settle. If the oil level drops, add oil to bring the oil level near the upper line.
  5. Reinstall the fill cap (Figure 3).
  6. Move the foreline pump to its original position, and make sure that it is correctly installed.
  7. Pump down the MSD.

        

Figure 3: Refilling the Pump Oil

 Tip 

Learn more on how to effectively operate and troubleshoot your Agilent 5977 Series GC/MSD: 
Agilent 5977 GC/MSD with MassHunter Workstation Learning Path
Agilent 5977 GC/MSD with OpenLab CDS Learning Path

  • GCMS Instruments
  • single quadrupole
  • 5977
  • 5977B
  • 5977A
  • Maintenance
  • 5975
  • Share
  • History
  • More
  • Cancel
Was this helpful?
  • Yes
  • No
Thank you for your feedback!

Agilent Community Feedback

Agilent Community Feedback

×
We are glad this was helpful! We are sorry this was not helpful. If you still need assistance please create a community post or contact support. To help us improve, please provide any additional feedback. For full details of how we will treat your information, please view our privacy policy.
Submit Cancel
Submit Cancel

Contact Agilent Support

 Still Need Assistance?

 Contact Agilent Support >

Related
Recommended for you
Privacy Statement
Terms of Use
Contact Us
Site Help