Blocked air intakes can prevent the fan from efficiently cooling the diffusion pump.
Remove the upper and lower MSD covers.
WARNING! Do not remove any other covers. Dangerous voltages will be present.
Check the air intake slots on the front of the lower MSD cover. Make sure they are not blocked.
Check the safety grill over the fan. Make sure it is not blocked.
WARNING! Do not remove the fan safety grill while the MSD is on.
See the MSD maintenance documentation for instructions for removing the MSD covers.
Check the temperature in your laboratory. If the temperature is too high, the fan may not be able to cool the diffusion pump.
If its fluid level is low, the diffusion pump will not work effectively. Check the level of the fluid in the diffusion pump. If necessary, replace the diffusion pump fluid.
See the MSD maintenance documentation for instructions for checking and replacing diffusion pump fluid.
Check the back of the MSD. Make sure the high vacuum signal cable (HI-VAC SIGNAL) is securely connected to the back panel of the MSD.
WARNING! The diffusion pump operates at dangerously high temperatures. Do not try to check the high vacuum signal cable connections to the diffusion pump unless the MSD is off and the diffusion pump has had enough time to cool.
Contact your Agilent Technologies service representative.
Contact your Agilent Technologies service representative.