Emptying/Drainage; Dismounting; Fundamental Instructions/Observations; Tubular Coupling Guards - KSB AU Manuel D'instructions

- Pour oil through this orifice until the level is between the
minimum and maximum marks of the control dipstick.
- Replace the upper cap. (Rest of pumps)
Oil change
Proceed to first oil change after 300 hours of operation. For
subsequent changes oil should be changed every 8000 hours
of operation (or once every year, whatever may occur first). If
the environment is dusty, humid or aggressive, this change
should be carried out more often.
- Before changing the oil, start up the pump in order to
fluidifly it.
- Release the upper filling cap and the lower drainage cap.
- Empty the support oil and let it drain off.
- Replace the lower cap and proceed to fill as indicated in
the preceding section.
Oil chart
Oil recommended for normal use (bearing temperature up to
+70ºC), in line with the operation revolutions and the size of
the pump (ISO-VG oil grade is shown)
≤1500 ≤2000

Pump

size rpm rpm
ISO ISO
AU-50
VG100 VG100
ISO ISO
AU-100
VG100 VG100
ISO ISO
AU-200
VG100 VG68
The lubrication oil must always be clean and at its appropriate
level, in order to avoid high temperatures on the bearings
support. To this end, it is essential to follow the instructions on
oil change and regular checks of the oil level.
Check with your oil supplier when a temperature outside of the
indicated margins is reached, or when the environmental
temperature is going to be less than -5°C.
7.3

Emptying/Drainage

The emptying and drainage of pumps used to expel
liquids which are a health hazard must be carried out
in such a way as there is no risk to people or to the
environment, in line with legislation. If necessary, use
protective clothing and mask.
7.4

Dismounting

7.4.1

Fundamental instructions/observations

Before dismounting, ensure the pump cannot
Note
be started up.
The suction and discharge valves must be closed.
The pump frame must have returned to environmental
temperature.
The pump frame must be depressurised and emptied.
Comply with all safety measures in accordance with 7.1.
When working on the motor, also take into account the rules
and instructions of the manufacturer.
7.4.2

Tubular coupling guards

When dismounting, follow the chapters on assembly but in
reverse order.
Oil
≤3000 ≤3600
quantity
rpm rpm
[l]
ISO ISO
0,42
VG68 VG68
ISO ISO
0,65
VG68 VG68
--- --- 1,0
7.4.3

Coupling

1.- Remove the coupling guard
2.- Uncouple the pump from the motor, as indicated:
2.1.- COUPLING WITHOUT DISTANCER. Release the
motor attachment bolts and remove the motor along with
the male coupling.
2.2.- COUPLING WITH DISTANCER.
coupling attachment screws and remove the distancer
pipe. Separate the male coupling.
3.- If the pump needs to be repaired, release the casing/cover
attachment screws, along with those of the rear support foot.
4.- If you need to release the coupling, use an extractor. Never
bang in order to extract, as this may cause serious damage to
the bearings.
7.4.4

Mechanical seal

- Dismount in reverse order to assembly.
For the correct operation of the seal it is
Note
necessary to:
- Take great care when cleaning the different parts of the
mechanical seal, especially the contact faces. Never use
lubricant on the contact faces, use only clean water with
a cloth specifically for cleaning optical devices.
- Not damage the O-rings during assembly.
- Not turn the mechanical seal while dry.
7.4.5 Pump
It is necessary to dismount practically the entire pump in order
to extract the bearings, shaft, etc.
To do this, observe the attached sectional plan.
As a general guide to dismount the equipment, follow these
steps:
For monobloc construction:
- Dismount the installation pump.
- Release the nuts of the pump casing and remove
afterwards the pump casing from the assembly cover-
pedestal with motor.
- Pay special attention to the pump casing, since it does
not have stability and must be properly supported.
- Once the pump casing is removed, wear plate (if it is
supplied with) is to be seen inside the pump casing.
AU
Release the
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