Leroy-Somer X20 AC GEARLESS, Installation And Maintenance Manual

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3
INSTALLATION AND MAINTENANCE
X20 – 30 – 36 – AC GEARLESS
LEROY-SOMER
3141 en - 02.1999/ a
4.2 - Installation
Incorrect lifting methods may be dangerous for
personnel and may cause serious damage to the
machine.
Check that the machine weight is below the lifting capacity of
any sling or hook. The only way to properly lift the complete
machine is to attach it by points which are recommended (see
figure 1).
Motors should be installed in a location where cooling air
(which must be low in humidity, free of dust, steam and
corrosive gases) can enter and exit freely. Ensure that warm
air emissions cannot be drawn back in (motor against a wall
for example).
4.2.1 - Cleaning
- Release the brake by hand with the brake lever, or release
the brake springs and open the brake arms, and remove the
protection which is between the brake shoes and the brake
wheel of the traction sheave.
- Remove any rust-protective wax from the sheave.
Do not use any abrasive material, but rather a cloth
soaked in alcohol or solvent. Use a solvent wich does
not contain oil to avoid oil contamination of the friction
surfaces.
WARNING: only use the solvent in a ventilated area.
If the machines are delivered with a bed-plate and a
secondary sheave, the secondary sheave has to be cleaned
as well (see above).
4.2.2 - Mechanical installation
- The gearless machine must be installed on a bed plate not
subject to vibrations, and must be secured by four M30 bolts,
nuts, and washers. The bolts must be secured only when
ropes, car, counter-weight, traction sheave and secondary
sheave are perfectly aligned. When this operation is
completed, weld the plates attached to the U bolts of the
secondary sheave if it is supplied.
- Before installing the ropes, check that the traction sheave
can rotate freely by releasing the brake and rotating the
sheave by hand.
- When the ropes are installed, adjust the clearance between
the ropes and the rope guard and tighten the two bolts to
secure the rope guard.
4.3 - Connection
- See connection diagrams in the terminal boxes (motor,
brake and blower).
- Connect the motor using cables and connectors of an
appropriate size.
- Check also that connectors are crimped onto the cables.
Be particularly careful when screwing on the terminal nuts (if
done incorrectly, this could damage the connections by
overheating : see figure 2).
- During installation, include safety devices to protect the
motor.
- Connect the supply cables to the terminals U1, V1, W1 as
per IEC 34.1 to have clock-wise rotation of the shaft.
- If case, connect thermistors to the remote control.
- Connect the earth terminal.
4.4 - Bearing inspection
When the storage exceeds one year, it is advisable to
regrease (see section 5.2).
Lifting rings
X20 X30 - X36
Lifting rings
fig. 2
Incorrect Correct