8 Maintenance
8.1 Safety information
WARNING: DANGEROUS VOLTAGES
Risk of electric shock. The electrical connections must only be provided by a trained
electrician as specied, for example, by the regulations EN 50110-1. Note the
national r
egulations of the country in which the equipment is being operated.
Disconnect the electrical connections before disassembling the pump. Make sure
that the pump cannot be accidentally started.
Observe the safety information given in Electrical hazards on page 9.
WARNING: HAZARDOUS SUBSTANCES
Risk of injury or damage to the equipment. Make sure that there is no potentially
explosive atmosphere before conducting any maintenance work.
If the pump has pumped harmful substances, contrary to what has been stated in
Principle o
f operation on page 13, ascertain the nature of hazard and take adequate
safety measures. Observe the safety information given Hazards caused by materials
and substances on page 9.
When disposing of used oil, you must observe the applicable environmental
regulations.
All work must be carried out by suitably trained personnel. Maintenance or
repairs carried out incorrectly will affect the life and performance of the pump
and will void any warranty claims.
Note:
Due to the design concept, the pumps require very little maintenance when
operated under normal conditions. The maintenance required is described in
the sections below
. In addition to this, a maintenance plan is provided in
Maintenance intervals on page 39.
We offer practical courses on the maintenance, repair and testing of pumps.
Further details are available on request.
If the pump is used in ambient air which is contaminated, make sure that the
air circulation and the gas ballast valve are not adversely affected.
When the pump has been pumping corrosive media we recommend that
possibly planned maintenance work be carried out immediately to prevent
corrosion of the pump while it is at standstill.
In case of special designs and variants always indicate the serial number.
8.2 Maintenance intervals
Note:
The intervals stated in the maintenance schedule are approximate values for
normal pump operation. Unfavourable ambient conditions and/or aggressive
media may signicantly
reduce maintenance intervals.
39
300956027_002_A0 - 03/2022 - © Leybold
Maintenance
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