Problem
Possible Causes
Solution
Pump overheats / Runs exces-
sively hot
Cooling ducts blocked
Clean cooling ducts.
Cooling fan broken
Replace fan.
High ambient temperature
Ventilate or cool room.
Pump does not have adequate
ventilation for cool operation
If pump is installed in an enclosure, make
sure re-circulation of hot exhaust cooling air
is avoided and pump receives enough fresh
cooling air. Do not block cooling air entrance
to pump. Do not allow the pump to become
covered with dirt, dust or process material.
This will act as an insulator which may severely
damage the pump.
Pump operated at vacuum levels
outside the recommended range on a
continuous basis
Adjust vacuum settings or relief valve or con-
sult factory for assistance.
Inlet restricted
Remove restriction.
Exhaust restricted
Remove restriction.
Oil tank is low / empty of oil
If the oil level is found to be low, immediate-
ly shut o
ff
the pump, drain the remaining oil
from the tank and replenish with new fresh
oil. If an incorrect oil type or contamination is
found, make sure the pump has reached its
operating temperature before replacing with
new fresh oil. Refer to Section 6.2 for the cor-
rect type of oil.
Oil tank has contaminated oil, or was
fi
lled with an incorrect type of oil
Motor will not start
No power to the panel
Restore power to the panel.
Incorrect voltage being supplied
Supply the drive motor with correct voltage.
Starter tripped
Locate and repair electrical overload, then
restart the starter.
Fuse(s) blown
Check the fuses.
Control circuit power is o
ff
Locate and repair the fault, restore power.
Emergency Stop button engaged (PLC) Twist and release Emergency Stop Button.
Frequent motor starts
Leaks in the system
Leak test the system and repair leaks.
Vacuum switch faulty or requires
adjustment
Replace or adjust the vacuum switch.
Pump will not shut o
ff
Leaks in the system
Leak test the system and repair leaks.
High altitude
Contact factory for assistance or adjust vacu-
um setting on main display per speci
fi
cations.
System sized too small
Contact
BeaconMedæs.
5.0 Troubleshooting (continued)
Lubricated Rotary Vane Laboratory Vacuum Systems
4107 9021 88.01
5-3