GA 02.200/8.02 - 10/02
Maintenance
13
3 Maintenance
Disconnect the electrical connections for all
disassembly work on the pump. Make abso-
lutely sure that the pump cannot be acci-
dentally started.
If the pump was used for hazardous sub-
stances, determine the type of hazard first
and take suitable precautions.
Before beginning with any maintenance
work you must decontaminate the pump
first.
Observe all relevant safety regulations!
Never exchange the oil or the filters while
the pump is still warm. Wear suitable pro-
tective clothing.
When disposing of used oil, please observe
the applicable environmental protection
regulations!
If you send a pump to Leybold for repair,
please specify all hazardous substances in
or around the pump. Please use the special
form for this which has been included with
these Operating Instructions.
Due to their design, the rotary piston pumps normally
require very little maintenance. The necessary work is
described in the sections below.
All work on the pump must be carried out by suitably trai-
ned personnel. Maintenance or repairs done by inexperi-
enced personnel may affect the life and performance of
the pump and may cause problems when filing warranty
claims.
LV has practical courses on the maintenance, repair and
troubleshooting of rotary piston pumps. Further details
are available from LV upon request.
If the pump is employed in highly contami-
nated ambient air, make sure that its air
cooling and the gas ballast facility are not
impaired.
If the pump has been used for corrosive
media, we recommend that any mainte-
nance work be carried out immediately so
as to avoid corrosion.
Treat all sealing surfaces of the pump with
the utmost care.
3.1 Maintenance Schedule
The intervals stated in the maintenance schedule are
approximate values for normal pump operation. Adverse
ambient conditions and/or aggressive media may neces-
sitate more frequent maintenance.
Maintenance work Interval Section
Check the oil level
Pump 1 day 3.2
Gear 1 week 3.2
Check condition depends very much 3.2
of the oil on the process
1st oil change after 250 3.3.1
pump and gear operating hours
Subsequent oil changes depend very much 3.2
for the pump on the process
Subsequent oil changes 1000 operating 3.3.2
for the gear hours
Cleaning of the dirt trap 1 month 3.4
Cleaning of the valve 6 months 3.5
chamber
Warning
Caution
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