Quincy QSV 2200, Instruction Manual

Page: 96 / 124

Section VIII – Problem solving
96 Quincy Vacuum Pump-QSV Series
Problem solving
CAUTION!
Before carrying out any maintenance, repair work or adjustment, stop vacuum pump, close the
isolation valve and wait 3 minutes.
Press the emergency stop button and switch off the voltage.
Vent the vacuum pump by opening the plug on the cover of the air inlet filter.
For location of components, see sections:

Introduction.

Operation instructions

Maintenance.
Open and lock the isolating switch.
Lock the isolation valve during maintenance or repair.
The operator must apply all relevant Safety precautions.
Before electrical maintenance
CAUTION!
Wait for at least 10 minutes before starting any electrical repairs as dangerous high voltage
remains on the capacitors of the start and speed regulation unit during some minutes after
switching off the voltage.
Faults and remedies, vacuum pump
If the alarm LED is lit or flashes, consult sections Event history menu or Service menu.
Condition Fault Remedy
The pump cannot reach
ultimate pressure
Air leakage in the inlet piping
connections
Check for leakages in the inlet filter
assembly and piping. Check sealing
between components
Low oil level Top-up oil
Oil contaminated Replace oil
Solenoid-valve malfunctioning Replace valve
Vacuum pump element out of
order
Consult Quincy