Wilo Vardo WEEDLESS-F Notice De Montage Et De Mise En Service page 255

9.5.1 Recommended maintenance
measures
9.5.2 Visual inspection for wear of the
mixer
9.5.3 Visual inspection of accessories
9.5.4 Visual inspection of the connec-
tion cable
9.5.5 Changing gear oil with in-built
tool
Installation and operating instructions Wilo-Vardo WEEDLESS-F
Maintenance and repair
▪ If the weather conditions (e.g. ice formation, strong wind) mean it is no longer possible
to work safely, stop work.
‡
Mixer is decommissioned.
‡
Drive unit has cooled to ambient temperature.
‡
Drive unit has been thoroughly cleaned and disinfected (if required).
1. Carry out maintenance measures as prescribed.
⇒ If deficiencies are identified, replace the components. See "Repairs [} 256]".
2. Perform maintenance measures in accordance with the manufacturer instructions.
▶ Maintenance carried out. Switch the mixer back on.
Regular inspection of current consumption and the operating voltage in all three phases
is recommended for smooth operation. In normal operation, these values remain con-
stant. Slight fluctuations depend on the characteristics of the fluid.
Current consumption can provide an early indication of damage to or malfunctions in
the mixer, which can then be rectified. Larger voltage fluctuations strain the motor
winding and can cause breakdown. Regular inspections can therefore largely prevent
major secondary damage and reduce the risk of total breakdown. In this regard, it is re-
commended to use remote monitoring for regular inspections.
Inspect individual components (propeller, hub, etc.) for damage and wear. If there are
defects, observe the following:
▪ If the coating is damaged, restore it.
▪ If components have worn, contact customer service and replace the components in
question!
Accessories must be checked for:
▪ Correct fixation
▪ Smooth function
▪ Signs of wear, e.g. cracks caused by frequencies
Any defects detected must be repaired immediately or the accessories must be re-
placed.
Check connection cable for:
▪ Bubbles
▪ Cracks
▪ Scratches
▪ Abrasion
▪ Pinch points
If damage to the connection cable is identified, decommission the mixer immediately!
Have the connection cable replaced by a qualified electrician. Only recommission the
mixer once the damage has been properly remedied!
CAUTION! Damaged connection cables can cause a short-circuit and lead to total
damage of the mixer.
NOTICE
In-built tool for easy oil changing
Consult the motor's rating plate for information on oil type and quantity. Consult the
manufacturer's instructions for safety instructions and detailed work instructions on
changing the oil. The following section relates exclusively to the work steps with the
in-built tools!
The position in which the drive unit is installed means that the gear's oil drain plug is
located directly above the floor fixation. An oil drain line is mounted to the oil drain
opening for easy oil change.
en
255