Publicidad
Idiomas disponibles
Idiomas disponibles
Table 14: Overview of maintenance work
Maintenance interval
Every 4000 operating hours; at
least once a year
Every five years
Visual inspection
Checking the earth
conductor
102 of 449
7 Servicing/Maintenance
Maintenance work
Insulation resistance measurement
Checking the power cables
Visual inspection of the lifting chain /
lifting rope
Checking the sensors
Changing the lubricant
Checking the bearings
General overhaul
7.2.1 Inspection work
7.2.1.1 Checking the lifting chain/rope
ü The pump set has been lifted out of the pump sump and cleaned.
1. Inspect the lifting chain/rope as well as their fasteners for any visible damage.
2. Replace any damaged components by original spare parts.
7.2.1.2 Checking the power cables
ü The pump set has been lifted out of the pump sump and cleaned.
1. Inspect the power cables for visible damage.
2. Replace any damaged components by original spare parts.
ü The pump set has been lifted out of the pump sump and cleaned.
1. Measure the resistance between the earth conductor and chassis ground.
The electrical resistance must be lower than 1 Ω.
2. Replace any damaged components by original spare parts.
DANGER
Defective earth conductor
Electric shock!
▷ Never switch on a pump set with a defective earth conductor.
7.2.1.3 Measuring the insulation resistance
Measure the insulation resistance of the motor winding during annual maintenance
work.
ü The pump set has been disconnected in the control cabinet.
ü Use an insulation resistance measuring device.
ü The recommended measuring voltage equals 500 V (maximum permissible
1000 V).
1. Measure the winding to chassis ground.
To do so, connect all winding ends together.
2. Measure the winding temperature sensors to chassis ground.
To do so, connect all core ends of the winding temperature sensors together
and connect all winding ends to chassis ground.
ð The insulation resistance of the core ends to chassis ground must not be lower
than 1 MΩ.
If the resistance measured is lower, power cable and motor resistance must be
measured separately. Disconnect the power cable from the motor for this
purpose.
Sanipump VX 65/80
For details see ...
(ð Section 7.2.1.3, Page 102)
(ð Section 7.2.1.2, Page 102)
(ð Section 7.2.1.4, Page 103)
(ð Section 7.2.2.1.4, Page 104)
(ð Section 7.4.4, Page 108)
Publicidad
