en Maintenance and repair
32 WILO SE 2017-06
9 Maintenance and repair
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, decontaminate the pump after dis-
mantling 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 per-
sonnel 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 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 this installation and operating instruc-
tions.
▪Wear the following protective equipment while performing 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 accord-
ance with EN50110-1).
▪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 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 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 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 Labelling of the screw plugs
M
Motor compartment screw plugs
D
Sealing chamber screw plugs
K
Cooling system screw plugs
L
Leakage chamber screw plug
S
Condensation water chamber screw plug
F
Grease nipple screw plug
9.4 Operating fluid
9.4.1 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”.
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