VLT
Vertical Process Pump
17 V1.090418
o If none are available, single phase or “trickle” heating may be utilized by energizing
one phase of the motor’s windings with a low voltage, producing heat in the winding
conductor.
Request the required voltage and transformer capacity from the driver
manufacturer.
o A third option is to use an auxiliary heat source and keep the windings warm by either
convection or blowing warm dry air into the motor.
Be careful not to overheat, since keeping the temperature of the motor frame
9 °F (5 °C) above the surrounding ambient temperature is sufficient.
After the storing period, follow the next steps as start-up preparations:
1. Motor should be thoroughly inspected and cleaned to restore to an “As Shipped”
condition.
2. Motors, which have been subjected to vibration, must be disassembled and each bearing
inspected for damage.
3. Oil and/or grease must be completely changed using lubricants and methods
recommended on the motor's lubrication plate, in the “LUBRICATION” section of the
driver manufacturer’s manual.
4. If storage has exceeded one year, the motor manufacturer’s Quality Assurance
Department must be contacted prior to equipment start-up for any special
recommendations.
3.5 CONSERVATION
All exposed, machined, working surfaces (flanges, seals, surfaces supporting the motor), shaft ends,
unpainted couplings and the like must be cleaned and treated with anticorrosive agents. After being
cleaned, all parts inside the pump housing must be sprayed with anticorrosive agents.
The period of protection offered by these conservation measures is approximately 18 months if
stored in a dry place. If stored under unfavorable climatic conditions, this protective period may be
considerably reduced. Should the anticorrosive layer become damaged, it can be repaired by
repainting or respraying.
To Next Page
Loading...
