WEG W22Xdb - Handling

20 | Flameproof motors
www.weg.net
4. HANDLING
Use only the existing eyebolts to lift the motor.
Never lift the motor by the shaft. Check the motor
weight. Lifting and lowering must be done gently in
order to avoid damage to the bearings.
HANDLING RIBBED COOLED
MOTORS
4.1.1. HORIZONTAL MOTORS
The eyebolts attached to endshields, fan cover, etc,
should be used to handle these specific
components only. The complete motor should be
lifted only by the eyebolts in the frame.
Figure 4-1 - W22Xd LINE – horizontal ribbed cooled
motors
Lifting lugs on the frame are designed for
lifting machine only. Do not use for lifting
coupled equipment such as pumps,
compressors, gears or other equipment;
The chains or handles of hoisting must have
on maximum angle of 30º with regard to
vertical line:
Use all of eyebolts fixed in the frame, supplied
together with the motor;
Failure to observe these precautions may
result in damage to the equipment, injury to
personnel or both.
When the risk of motor damage exists by the
lifting chains, special tools must be predicted
by the customer.
4.1.2. VERTICAL MOTORS
Figure 4-2 - W22Xd LINE – vertical ribbed cooled motors
The handling of the vertical ribbed cooled motors
must be done as showed in the Figure 4-2.
Lift the motor using 2 cranes and 4 eyebolts:
2 chains or cables in motor eyebolts (b) and
2 chains or cables in flange eyebolts (a); (see
detail in Figure 4-3)
Lower the crane that is holding the flange
eyebolts (a) and simultaneously lift the crane
holding motor eyebolts (b);
Attach a third chain or cable (c) to the crane
holding motor eyebolts (b);
Continue to lower the crane attached to
flange eyebolts until motor is in vertical
position and remove flange chains and
eyebolts (a).
1
2
3
4
a)
b)
a)
b)
a)
b)
c)
c)
b)
c)
b)b)
a) a)
b)
a)
b)
a)
b)
a)
b)
a)
b)b) c)
30º