18 l
Installation, operation and maintenance manual – Squirrel cage motor – W Line - Horizontal and vertical 11239449
3.3.3.9
Maintenance plan during storage
During the storage period, the motor maintenance must be performed and recorded according to the plan described in
Table 3.1.
Table 3.1: Storage plan
Monthly
2
months
6
months
2 years
Before
start-up
Notes
STORAGE LOCATION
Inspect the cleanliness conditions
X
X
Inspect the humidity and temperature
conditions
X
Inspect for insect infestation signs
X
PACKAGE
Inspect for damages
X
Check the internal relative humidity
X
Replace the desiccant in the package (if any)
X
Whenever
necessary.
SPACE HEATER
Check the operating conditions
X
Measure the circuit voltage and frequency
X
Check the function of the signal system (if
any)
X
WHOLE MOTOR
Perform external cleaning
X
X
Check the painting conditions
X
Check the rust inhibitor on the exposed
machined parts
X
Reapply the rust inhibitor
X
Drain the water condensed inside the motor
X
Inspect the
rubber seals and gaskets
X
Complete predictive maintenance
According to section 3.3.3.8
WINDINGS
Measure the winding temperature
X
X
Measure the insulation resistance
X
X
Measure the polarization index
X
X
TERMINAL BOX AND GROUNDING TERMINALS
Clean the interior of the terminal boxes
X
X
Inspect the seals and gaskets
X
X
BEARINGS
Rotate the shaft
X
Relubricate the bearing
X
Disassemble and clean the bearing
If the storage period exceeds 2
years.
