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 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 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”.
