Maintenance and repair
en
Installation and operating instructions Wilo-Rexa CUT GE
29
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 lift-
ing 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 these installation and operating in-
structions.
▪ Wear the following protective equipment while performing maintenance tasks:
– Safety goggles
– Safety shoes
– Safety gloves
9.1
Personnel qualifications
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ 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 en-
gineering.
9.2
Operator responsibilities
▪ Provide the necessary protective equipment and make sure that the personnel wears it.
▪ Collect operating fluids in suitable tanks and dispose 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 manufacturer from any liability.
▪ Collect any leakage of fluid and operating fluid immediately and dispose of it according
to the locally applicable guidelines.
▪ Provide the tools required.
▪ If flammable solvents and cleaning agents are used, open flames, naked lights and
smoking are prohibited.
9.3
Operating fluid
9.3.1
Oil types
Biological white oil is filled-in into the sealing chamber. The following oil types are re-
commended when changing 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”.
9.3.2
Filling quantities
The filling quantity is 900 ml (30 US.fl.oz).
9.4
Maintenance intervals
To ensure reliable operation, maintenance tasks must be carried out regularly. Depend-
ing on the real ambient temperatures, maintenance intervals different from those men-
tioned 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 in-
tervals.
9.4.1
Maintenance intervals for normal
conditions
2 years
▪ Visual inspection of the power supply cable
▪ Visual inspection of accessories
▪ Visual inspection of the coating and housing for wear
▪ Function test of monitoring devices
▪ Oil change
NOTICE! If sealing chamber control is installed, the oil is changed according to the
indicator!
10 years or 15000 operating hours
▪ General overhaul
9.4.2
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 intervals and measures in accordance with
DIN EN 12056‑4
!
