Operating Fluid; Maintenance Intervals - Wilo EMU FA+T Einbau- Und Betriebsanleitung

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of care and in a safe workplace. Proper protective
clothing is to be worn.
• This manual must be available to and observed
by the maintenance staff. Only maintenance and
repair work described in this manual may be car-
ried out.
Any other work and/or alterations to the
construction must only be carried out by Wilo
customer service.
• When carrying out work in basins and/or tanks,
the respective local protection measures must be
observed in all cases. A second person must be
present for safety reasons.
• Only lifting equipment that is in a technically
perfect condition and lifting gear that has been
officially approved may be used for lowering and
raising the pump. Make sure that the pump does
not jam during lifting and lowering. If the pump
does jam, no lifting forces greater than 1.2 times
the pump weight must be applied. The maxi-
mum permissible bearing capacity must never be
exceeded!
Make sure the lifting gear, wire rope and safety
devices of the lifting equipment are in perfect
working order. Work may only commence if
the lifting equipment has been checked and
found to be in perfect working order. If it is not
inspected, fatal injuries may result.
• Electrical work on the pump and the system must
be carried out by a qualified electrician. Defective
fuses must be replaced immediately. They must
never be repaired. Only fuses for the specified
electric current and of the specified type may be
used.
• If flammable solvents and cleaning agents are
used, naked flames and smoking are prohibited.
• Pumps that circulate fluids that are hazardous to
health or come into contact with such fluids must
be decontaminated. In addition, make sure that
no gases that are hazardous to health form or are
present.
• If injuries are caused by fluids or gases that are
hazardous to health, apply the first-aid measures
specified on the notice at the working premises
and notify a doctor immediately!
• Operating fluids (e.g. oils, lubricants, etc.) should
be collected in suitable containers and disposed
of properly. Also comply with the information in
section 7.4 'Disposal'!
• Only use genuine parts from the manufacturer.

8.1. Operating fluid

8.1.1. Overview of white oil
The sealing chamber is filled with white oil that is
potentially biodegradable.
When changing the oil, we recommend the fol-
lowing oil types:
• Aral Autin PL*
• Shell ONDINA 919
• Esso MARCOL 52* or 82*
• BP WHITEMORE WOM 14*
64
MAINTENANCE AND REPAIR
• Texaco Pharmaceutical 30* or 40*
All oil types marked with '*' are approved for use
with foods in accordance with 'USDA-H1'.
Filling quantities
The sealing chamber is always filled up to the filler
opening with white oil. For the exact filling quan-
tity, refer to the order-specific technical data.
8.1.2. Overview of grease
The following lubricating grease can be used in
accordance with DIN 51818/NLGl Class 3:
• Esso Unirex N3

8.2. Maintenance intervals

To ensure reliable operation, various maintenance
tasks must be carried out regularly.
The maintenance intervals must be specified
according to the load on the pump. Regardless of
the specified maintenance intervals, the pump or
installation must be checked if strong vibrations
occur during operation.
When used in sewage lifting units inside build-
ings or on areas of land, the maintenance inter-
vals and work shown in DIN EN 12056‐4 must be
adhered to.
8.2.1. Intervals for normal operating conditions
8000 operating hours or after 2 years at the
latest
• Visual inspection of the power supply cable
• Visual inspection of accessories
• Visual inspection of the housing for wear
• Functional inspection of all safety and control
devices
• Inspection of the switchgear/relays used
• Oil change
If using a pencil electrode for sealing chamber
control, change the oil according to the indica-
tion.
• Empty the leakage chamber
• Grease roller bearings
• Drain condensation water
Also observe the table 'Maintenance work
depending on the motor used' on the following
page!
15000 operating hours or after 10 years at the
latest
• General overhaul
8.2.2. Intervals for harsh operating conditions
Under harsh operating conditions, the specified
maintenance intervals must be shortened accord-
ingly. In this case, contact Wilo customer service.
If using the pump under harsh conditions, we also
recommend signing a maintenance contract.
Harsh operating conditions include:
• A large proportion of fibrous material or sand in
the fluid
• Turbulent inlet (e.g. due to air entry, cavitation)
• Strongly corrosive fluids
• Strongly gassing fluids
WILO SE 07-2015 V05 DIN A4