WEG W01 Manual De Instalación, Operación Y Mantenimiento página 3

1. INTRODUCTION
The installation, operation and maintenance of the motor must be always performed by qualified
personnel using proper tools and methods and following the instructions contained in the
documents supplied with the motor.
The instructions presented in this document are valid for WEG motors with the following characteristics:
Three-phase and single-phase induction motors (squirrel cage rotor);
J J
Three-phase permanent magnet motors;
J J
Three-phase hybrid motors (squirrel cage rotor + permanent magnets);
J J
The objective of this manual is to provide important information, which must be considered during the
shipment, storage, installation, operation and maintenance of WEG motors. Therefore, we advise to make
a careful and detailed study of the instructions contained herein before performing any procedures on the
motor. The noncompliance with the instructions informed in this manual and others mentioned on the website
www.weg.net voids the product warranty and may cause serious personal injuries and material damages.
Electric motors have energized circuits and exposed rotating parts which may cause injuries to
people.
2. SHIPMENT, STORAGE AND HANDLING
Check the conditions of the motor immediately upon receipt. When any damage is noticed, this must be
reported in writing to the transportation company, and immediately communicated to the insurance company
and to WEG. In this case, no installation job can be started before the detected problem has been solved.
Check if the nameplate data matches the invoice data and the environmental conditions in which the motor
will be installed. If the motor is not immediately installed, it must be stored in a clean and dry room protected
against dust, vibrations, gases and corrosive agents, and with relative humidity not exceeding 60%.
In order to prevent water condensation within the motor during the storage period, it is recommended to
keep the space heater ON (where provided). In order to prevent oxidation of the bearings and ensure an even
distribution of the lubricant, rotate the motor shaft at least once a month (at least five turns), always leaving it
in a different position. For bearings with oil mist lubrication systems, the motor must be stored horizontally,
independently from the mounting configuration, with ISO VG 68 oil in the bearing, (the amount is indicated
in the motor manual available on the website www.weg.net) and the shaft must be turned weekly. If motors
with open bearings are stored longer than six months, the bearings must be relubricated with the amount of
grease indicated on the nameplate before the commissioning of the motor. If the motors are stored for more
than two years, it is recommended to change the bearings, or to remove, wash, inspect and relubricate them
before the motor is started. After this storage period, it is also recommended to change the start capacitors
of single-phase motors since they loss their operating characteristics.
Handle the motor always carefully in order to prevent impacts and damages to the
bearings and always install the shaft transportation/locking device (if supplied) when
transporting the motor.
Use only the eyebolts to lift the motor. However these eyebolts are designed for the motor
weight only. Thus never use these eyebolts to lift the motor with additional loads coupled to it. The
lifting eyebolts of the terminal box, fan cover, etc., are intended to handle only these parts when
disassembled from the motor. For multimounting motors (with removable feet/base), the eyebolts
must be positioned according to the motor mounting position so that the lifting angle is vertically
aligned (lifting at 0°). Additional information regarding the maximum allowable angle-of-inclination
is indicated in the general manual available on the website www.weg.net.
Periodically and mainly before the initial star-up, measure the insulation resistance of the motor winding.
Check the recommended values and the measuring procedures in the website.
3. INSTALLATION
During the installation, the motors must be protected against accidental energization.
Check the motor direction of rotation, turning it without load before it is coupled to the
load.
Remove the transportation devices and shaft locking device (if supplied) before starting the motor installation.
Motors must be only installed in places compatible with their mounting features and in applications and
environments for which they are intended.
ENGLISH
Low and High Voltage Electric Motors | 3