Agilent Technologies 8355 Sulfur User Manual page 95

Table 12 Troubleshooting Pump Issues
Problem
Vacuum pump problems
Pump does not start
Fuses blow on startup
Water in pump
Reaction cell pressure high
Pump loses oil gurgle sound Ballast open.
High level of oil in
coalescing filter
SCD and NCD User Manual
Possible Cause
Pump switch off or power
cord disconnected.
Emulsified oil.
Cracked coalescing filter.
Ozone destruction trap
clogged.
Burner disconnected from
reaction cell.
Vacuum pump defective.
Plugged oil return restrictor.
Diagnosis
Inspect oil for integrity.
Milky yellow oil in the pump
window.
Remove ozone destruction
trap from the vacuum line
and re-check expected
pressure readings.
Check connections.
Oil level drops.
No visible movement of oil
in the return line.
Troubleshooting
Corrective Action
Turn On pump power switch.
Check pump power cord.
Change pump oil, and plug
unit into wall to run for
10–15 minutes.
Contact Agilent to replace
blown fuses.
Change coalescing filter and
pump oil.
Change chemical trap.
Replace vacuum pump.
Reset ballast. See
pump-specific sections.
Change filter and clear
restrictor.
6
95