Agilent Technologies TriScroll 620 Series, Installation And Operation Manual

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17
TriScroll 620 Series Vacuum Pump
DRAFT 10/30/14
Troubleshooting
Table 5 contains a list of possible problems, their probable causes, and corrective actions.
Table 5 Troubleshooting Chart
Problem Probable Cause Corrective Action
Pump won’t start Circuit breaker open Close breaker.
Identify cause of overload.
Motor thermal protector open Allow motor to cool.
Identify cause of overload.
Electrical short under the motor
electrical cover Inspect and repair.
Wiring loose or cut Repair or replace.
Excessive voltage drop Check size and length of power supply
cable.
Defective motor Inspect. Contact Agilent.
Poor ultimate pressure System leak Locate and repair leak.
Water in pump Flush pump with air or dry nitrogen.
Gas ballast plugged Replace breather vent. Contact Agilent.
Solvent in pump Flush pump with air or dry nitrogen.
Install trap or filter.
Seals worn out Replace tip seals. (Table 7 and Table 8
on page 18 list maintenance kits and
service options.)
Poor conductance to pump Replumb with shorter and/or larger
diameter tubing.
Pump makes hammering noise Pump overheated Check ambient temperature.
Check ventilation to pump.
Debris in pump Check inlet screen.
Flush pump.
Disassemble pump and inspect.
(Table 7 and Table 8 on page 18 list
maintenance kits and service options.)