Operating Materials; Maintenance Intervals - Wilo Rexa PRO Serie Instrucciones De Instalación Y Funcionamiento

MAINTENANCE AND REPAIR
• This manual must be available to and followed by
the maintenance staff. Only maintenance and repair
work described in this manual may be carried out.
Any other work and/or alterations to the con-
struction may only be carried out by Wilo custom-
er service.
• When carrying out work in basins and/or tanks, the
applicable local protection measures must be ob-
served in all cases. A second person must be present
for safety reasons.
• Only lifting equipment that is in a technically per-
fect condition and load carrying equipment 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, do not apply lifting forces greater
than 1.2 times the pump weight. The maximum
permissible bearing capacity should never be ex-
ceeded!
Make sure that the lifting gear, ropes, and the
lifting equipment's safety devices 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 checked,
fatal injuries may result.
• Electrical work on the pump and the system must
be carried out by a qualified electrician. Blown 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 at the working premises and notify a
doctor immediately.
• Make sure that the necessary tools and materials are
available. Tidiness and cleanliness ensure safe and
smooth work on the pump. After working on the
pump, remove any used cleaning materials and tools
from the pump. Store all materials and tools in their
proper place.
• Operating materials should be collected in suitable
containers and disposed of properly. Always wear
appropriate protective clothing when performing
maintenance and repair work. This must also be
disposed of properly.
Installation and operating instructions Wilo-Rexa PRO

8.1. Operating materials

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 follow-
ing oil types:
• Aral Autin PL*
• Shell ONDINA 919
• Esso MARCOL 52* or 82*
• BP WHITEMORE WOM 14*
• Texaco Pharmaceutical 30* or 40*
All oil types marked with "*" are approved for use
with foods in accordance with USDA-H1.
Filling quantities
The filling quantities depend on the motor:
• P 13.1: 30 oz (900 ml)
• P 13.2: 50 oz (1500 ml)
• P 17: 61 oz (1800 ml)
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 tasks should be in accordance with the
requirements of local directives. Please check the
requirements in your area!
8.2.1. Intervals for normal operating conditions
2 years
• Visual inspection of the power supply cable
• Visual inspection of accessories
• Visual inspection of the coating and housing for
wear
• Functional inspection of all safety and monitoring
devices
• Inspection of the switchgear/relays used
• Oil change
NOTE
If sealing chamber control is installed, the oil is
changed according to the indicator!
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