KSB ITUR AU Series, Instruction Manual

Page: 12 / 24

AU
12
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)
Pump size
≤ 1500
rpm
≤ 2000
rpm
≤ 3000
rpm
≤ 3600
rpm
AU-50
ISO
VG100
ISO
VG100
ISO
VG68
ISO
VG68
AU-100
ISO
VG100
ISO
VG100
ISO
VG68
ISO
VG68
AU-200
ISO
VG100
ISO
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
be started up.
Note
The suction and impulsion 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.
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. Release the
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
necessary to:
Note
- 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.