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Maintenance and repair
22
WILO SE 2019-02
‡
A disinfectant is provided for contaminated pumps.
1. Attach the lifting equipment to the attachment point of
the pump.
2. Lift the pump approximately 30 cm (10 in) above the
ground.
3. Spray the pump with clear water from top to bottom.
NOTICE! An appropriate disinfectant must be used for
contaminated pumps! Strictly observe the manufac-
turer’s specifications concerning use!
4. To clean the impeller and the pump interior, guide the
water jet inside via the pressure port.
5. Flush all dirt residue onto the floor of the channel.
6. Allow the pump to dry out.
In order to completely drain the pump housing, lie it
down on its side for approx. 5 minutes. Place the pres-
sure port face down.
8.4.3.1 Clean the interior area of the hydraulics
Remove the baseplate of the hydraulics for easier cleaning of the
interior area of the hydraulics.
1
2
Fig. 10:
Disassemble baseplate
1
Safety screw
2
Baseplate
1. Place the pump on a firm surface in a horizontal posi-
tion.
WARNING! Risk of hands being crushed. Ensure
that the pump cannot fall over or slip away!
2. Unscrew the safety screw (Allen bolt 4) of the baseplate
half-way, until the bayonet coupling can be turned.
3. The baseplate is attached with a bayonet coupling. Turn
the baseplate clockwise (to the right) and remove.
4. Rinse the interior area of the hydraulics with clear water,
remove solids manually.
WARNING! Sharp edges can
form on the impeller. This can lead to extremities be-
ing cut off! Wear safety gloves to protect against
cuts!
5. Check correct position of O-ring on the baseplate.
6. Lubricate the O-ring with O-ring grease and set the
baseplate on the hydraulic part.
7. Turn baseplate anticlockwise (to the left). The baseplate
is fixed in place with the bayonet coupling.
8. Screw in the safety screw of the baseplate.
Max. tight-
ening torque: 1.5 Nm (1.1 ft·lb)!
▶ Hydraulics cleaned and locked, complete cleaning tasks.
9
Maintenance and repair
DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, de-
contaminate the pump after dismantling and before
carrying out any other work! There is a risk of fatal
injury! Observe the specifications in the work regula-
tions! The operator must make sure that the person-
nel have received and read the work regulations!
NOTICE
Use only properly functioning lifting equip-
ment!
Use only properly functioning lifting equipment to
lift and lower the pump. Ensure that the pump does
not become jammed during lifting and lowering. Do
not
exceed the maximum bearing capacity of the
lifting equipment! Check that lifting equipment is
functioning properly before use!
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Always carry out maintenance tasks in a clean location with
good lighting. It must be possible to position the pump safely
and secure it.
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Only carry out maintenance tasks mentioned in these installa-
tion and operating instructions.
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Wear the following protective equipment while performing
maintenance tasks:
–
Safety goggles
–
Safety shoes
–
Safety gloves
9.1
Personnel qualifications
ƒ
Electrical work: A qualified electrician must carry out the elec-
trical work.
