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9.3.2
Filling quantities
9.4
Maintenance intervals
9.4.1
Maintenance intervals for normal
conditions
9.4.2
Maintenance intervals for use in
sewage lifting units
9.4.3
Maintenance intervals for harsh
conditions
9.5
Maintenance measures
9.5.1
Recommended maintenance
measures
Installation and operating instructions Wilo-Rexa CUT GE
Maintenance and repair
All oil types marked with "*" are approved for use with foods in accordance with
"USDA-H1".
The filling quantity is 900 ml (30 US.fl.oz).
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.
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
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!
Under harsh operating conditions, specified maintenance intervals must be shortened if
required. Harsh operating conditions include:
▪ Fluids with long-fibre components
▪ Turbulent inlet (e.g. due to air intake, cavitation)
▪ Strongly corroding or abrasive fluids
▪ Heavily gas generating fluids
▪ Operation at an unfavourable duty point
▪ Pressure surges
When using pumps under hard conditions, it is recommended to sign a maintenance
contract. Contact customer service.
WARNING
Attached macerator: sharp edges on the cutting plate and rotating blade!
The macerator can cause amputation of limbs! Wear safety gloves to protect against
cuts and never reach into the macerator!
WARNING
Hand, foot or eye injuries due to the absence of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Closed safety goggles
The following pre-requisites must be fulfilled prior to starting maintenance measures:
▪ Pump cooled down to the ambient temperature.
▪ Pump cleaned thoroughly and disinfected (if required).
Regular inspection of power consumption and the operating voltage in all three phases
is recommended for smooth operation. In normal operation, these values remain con-
stant. Slight fluctuations depend on the characteristics of the fluid. Power consumption
can provide an early indication of damage or malfunctions in the impeller, bearings or
en
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