Troubleshooting; Troubleshooting Chart - Varian TriScroll 600 Serie Manual De Instalación Y Funcionamiento

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Troubleshooting

Table 20 contains a list of possible problems, their probable causes, and corrective actions.
Problem
Pump won't start
Poor ultimate pressure
Pump makes hammering noise
40
TriScroll 600 Series Vacuum Pump
Table 20

Troubleshooting Chart

Probable Cause
Circuit breaker open
Motor thermal protector open
Electrical short under the motor
electrical cover
Wiring loose or cut
Excessive voltage drop
Defective motor
System leak
Water in pump
Gas ballast plugged
Solvent in pump
Seals worn out
Poor conductance to pump
Pump overheated
Debris in pump
Corrective Action
Close breaker.
Identify cause of overload.
Allow motor to cool.
Identify cause of overload.
Inspect and repair.
Repair or replace.
Check size and length of power supply
cable.
Inspect. Contact Vacuum Technologies.
Locate and repair leak.
Flush pump with air or dry nitrogen.
Replace breather vent. Contact Vacuum
Technologies.
Flush pump with air or dry nitrogen.
Install trap or filter.
Replace tip seals. (Table 21 and Table
22 on page 41 list maintenance kits and
service options.)
Replumb with shorter and/or larger
diameter tubing.
Check ambient temperature.
Check ventilation to pump.
Check inlet screen.
Flush pump.
Disassemble pump and inspect. (Table
21 and Table 22 on page 41 list
maintenance kits and service options.)
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