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Maintenance
9.2 Inspection and maintenance
9.2.4
General inspection
● Check that the installation conditions are observed. Perform the following checks after
● If you detect any deviations during the inspection, you must rectify them immediately. They
Checking the cooling system
● With the machine stopped, check the condition of the cooling system:
9.2.5
Servicing the water-jacket cooling
● During each inspection, check whether a pool of water has collected under the machine.
● Check any leakage water electrodes. If necessary, contact your Service Center
9.2.6
Assessing the rolling bearings
To assess the rolling bearings, it is generally not necessary to dismantle the machines. The
motor only has to be dismantled if the bearings are to be replaced.
78
approx. 16 000 operating hours or at the latest after two years:
Checking
The electrical parameters are maintained
The permissible bearing temperatures are not exceeded
The smooth running characteristics and machine running noise have not
deteriorated
The foundation has no cracks or indentations. (*)
The machine is aligned within the permissible tolerance ranges.
All the fixing bolts/screws for the mechanical and electrical connections
have been securely tightened
All the potential connections, grounding connections and shield supports
are correctly seated and properly bonded
The winding insulation resistances are sufficiently high (Page 34)
Any bearing insulation is fitted as shown on the plates and labels
The CABLES and insulating parts and components are in good condition
and there is no evidence of discoloring
Condensation can freely flow away.
(*) This check can be made at standstill or when running.
may otherwise cause damage to the machine.
– The cooling system is in good condition.
– The pressure drop between entry and exit has not increased appreciably.
Identify the cause: This can be condensation or a leak in the cooling system.
(Page 99).
When the
motor is
running
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SIMOTICS HV C 1NA14544WA600AG0-Z
Operating Instructions 06/2018
At stand‐
still
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