ISTRUZIONI ORIGINALI
TECHNICAL INFORMATION
43/43
87-900-136-01
DE-COMMISSIONING
Drain the oil from the pump prior to the removal.
If the oil is polluted, flush the pump with fresh oil
(see “Oil change procedure” paragraph).
Drain the oil from the tank, plug the inlet and the
discharge ports and store the pump without oil.
In case of pump disposal, separate the pump parts
by materials and trash the parts in accordance
with the local regulations in the Country of use.
RETURN FOR REPAIR
In case of pump return for repair to Varian, please
provide a list of substances which have come in
contact with the pump and advice the risks in-
volved in handling, if any. Drain the lubricant from
the pump prior to shipping the pump back.
TROUBLESHOOTING
TROUBLE CAUSE
REMEDY
WHO
Inlet filters are dirty
Clean or replace
Customer
Inlet pipes or machine are leaking
Identify leaking point and seal it.
Customer
Drop in performances
No or low lubrication
Check oil level and oil conditions
Fill with oil to the right level or change the oil
Customer
No lubrication
See previous point
Customer
Worn out coupling element
Replace it following the supplied instructions
Customer
Motor or pump bearings damaged
Call Varian Technical support
Varian Service
Anomalous noise
Worn out vanes
Call Varian Technical support
Varian Service
Worn out shaft oil seal rings
Replace oil seal rings Varian
Service
Oil leak
Oil recovery system leak
Check and clean oil recovery pipe
Customer
Blocked exhaust filters
Replace exhaust filters
Customer
No or low lubrication
Oil level filling up
Customer
Motor protection is tripping
Pump seizure and jelly oil
Pump overhaul
Varian Service
Clogged exhaust filters
Replace exhaust filters
Customer
High temperature due to polluted oil
Oil change
Customer
Discharge oil mist
High operating temperature due to high ambi-
ent temperature
Decrease room temperature by allowing a
better change of air
Customer
