Maintenance And Repair; Personnel Qualifications; Operator Responsibilities; Operating Fluid - Wilo Rexa UNI Installation And Operating Instructions Manual

9

Maintenance and repair

DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, de-
contaminate the pump after dismantling and before
carrying out any other work! There is danger to life!
Observe the specifications in the work regulations!
The operator must make sure that the personnel has
received and read the work regulations!
NOTICE
Only use lifting equipment in a technically
sound condition!
Only use lifting equipment in a technically sound
condition for lifting, lowering and transporting the
pump. Ensure that the pump does not become
jammed during lifting and lowering. Do not exceed
the max. permissible bearing capacity of the lifting
equipment!
▪ Always carry out maintenance tasks in a clean location
with good lighting. It must be possible to position the
pump safely and secure it.
▪ Only carry out maintenance tasks mentioned in this in-
stallation and operating instructions.
▪ Wear the following protective equipment while per-
forming maintenance tasks:
– Safety goggles
– Safety shoes
– Safety gloves
9.1

Personnel qualifications

▪ Electrical work: Electrical work must be carried out by a
qualified electrician (in accordance with EN 50110-1).
▪ Maintenance tasks: The technician must be familiar
with the use of operating fluids and their disposal. In
addition, the technician must have basic knowledge of
mechanical engineering.
9.2

Operator responsibilities

▪ Provide the necessary protective equipment and make
sure that the personnel wears it.
▪ Collect operating fluids in suitable tanks and disposed
of properly.
▪ Dispose of protective clothing used in accordance with
regulations.
▪ Use only original parts of the manufacturer. Use of
parts other than the original parts releases the manu-
facturer from any liability.
Installation and operating instructions Wilo-Rexa UNI
Maintenance and repair
9.3
9.3.1
9.3.2
9.4
9.4.1
9.4.2
▪ Collect any leakage of fluid and operating fluid immedi-
ately and dispose of it according to the locally applic-
able guidelines.
▪ Provide the tools required.
▪ If flammable solvents and cleaning agents are used,
open flames, naked lights and smoking are prohibited.

Operating fluid

Oil types
Biological white oil is filled-in into the sealing chamber.
The following oil types are recommended when chan-
ging the oil:
▪ 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 pump type:
▪ Rexa UNI V05...: 600 ml
▪ Rexa UNI V06...: 1000 ml

Maintenance intervals

To ensure reliable operation, maintenance tasks must
be carried out regularly. Depending on the real ambient
temperatures, maintenance intervals different from
those mentioned in the contract can be defined! If
strong vibrations occur during operation, the pump and
the installation must be checked regardless of the
defined maintenance intervals.
Maintenance intervals for normal conditions
5 years or 1500 operating hours
▪ Visual inspection of the power supply cable
▪ Visual inspection of accessories
▪ Visual inspection of the housing for wear
▪ Function test of monitoring devices
▪ Oil change
Maintenance intervals for use in sewage lifting units
When the pump is used in sewage lifting units inside
buildings or on plots of land, carry out maintenance in-
tervals and measures in accordance with
DIN EN 12056‑4!
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