Operating Fluid; Maintenance Intervals; Maintenance Measures - Wilo Padus UNI Einbau- Und Betriebsanleitung

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▪ Collect any leakage of fluid and operating fluid immedi-
ately 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
Medicinal white oil is filled into the sealing chamber ex-
factory. The following oil types are recommended 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 1200 ml (40 US.fl.oz).
9.4

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.
9.4.1 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
▪ Adjusting the impeller clearance
10 years or 5000 operating hours
▪ General overhaul
9.4.2 Maintenance intervals for harsh conditions
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
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Maintenance and repair
▪ Operation at an unfavourable duty point
▪ Pressure surges
When using pumps under hard conditions, it is recom-
mended to sign a maintenance contract. Contact cus-
tomer service.
9.5

Maintenance measures

WARNING
Sharp edges on the impeller and suction port!
Sharp edges can form on the impeller and suction
port. There is danger of limbs being severed! Protect-
ive gloves must be worn to protect from cuts.
WARNING
Hand, foot or eye injuries due to the absence
of protective equipment!
Danger of (serious) injuries during work. Wear the fol-
lowing 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).
9.5.1 Visual inspection of the connection cable
Check connection cable for:
▪ Bubbles
▪ Cracks
▪ Scratches
▪ Abrasion
▪ Pinch points
If damage is identified on the connection cable, decom-
mission the pump immediately! Have the connection
cable replaced by Wilo customer service. Only operate
the pump up again once the damage has been properly
remedied!
CAUTION! Water may penetrate into the pump due to
the damaged connection cable! Water ingress leads to
total failure of the pump.
9.5.2 Visual inspection of accessories
Accessories must be checked for:
▪ Correct fixation
▪ Smooth function
▪ Signs of wear, e.g. cracks caused by frequencies
WILO SE 2019-02