Specifications

98 5975 Series MSD Troubleshooting and Maintenance Manual
4 General Maintenance
To Drain the Foreline Pump
Standard foreline pump only
Materials needed
• Book or other solid object approximately 5 cm thick
• Container for catching old pump oil, 500 mL
• Gloves, oil- and solvent-resistant
• Screwdriver, flat-blade, large (8730-0002)
• Hex key, 5-mm (8710-1838)
Procedure
1 Vent the MSD.
2 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 or
behind the MSD, or under the analyzer chamber at the back of the MSD.
3 Place a book or other object under the pump motor to tilt it up slightly.
Remove the fill cap. See Figure 7.
4 Place a container under the drain plug.
5 Remove the drain plug. Allow the pump oil to drain out. The oil drains
faster if it is still warm.
WARNING
The foreline pump can cause burns if touched when operating. It has a safety shield
to prevent the user from touching it.
WARNING
The foreline pump may be hot.

WARNING
The old pump oil may contain toxic chemicals. Treat it as hazardous waste.