
10 | Maintenance
54 / 76
Operating instructions CMVpro 125-400 | Version 1-en
• For proper mounting and damage: Safeguards (splinter protection, pro-
tective grid with free installation, optional motor cover), and support
• For blockages and missing water: Condensate drain (option) and
siphon
• Replace damaged parts immediately.
2.
Test run
• Vibration measurement and condition check of the motor bearings.
Compare measured values with
- limit value according to table
_
48],
- information in the test report from initial commissioning.
• Replace motor bearings at the end of their service life or if they exhibit
significant noise development due to bearing wear. To do this, remove
the electric motor
_
64].
The motor bearings are lifetime lubricated
_
on the bearing service life, see the operating instructions of the electric motor.
• Check hub seal (option,
_
• Measure the current draw of the electric motor. The measured value
may not exceed the rated current on the nameplate.
• Measure temperature of the electric motor and compare with informa-
tion in the technical data sheet.
3.
Inside inspection and cleaning
• Check the impeller for deformation and for damage such as cracking
and corrosion.
• If necessary, conduct outside and inside cleaning.
• Check impeller position and adjust if necessary
_
65].
4.
Assembly and final inspection
• Proper mounting of the splinter protection
_
• All screw connections are tight.
• Fixed position of all fastening elements (anchors) in the foundation
(baseplate).
• Short test run, checking for vibration and noise.