8.3.7 Replacement of electrical motor
WARNING: DANGEROUS VOLTAGE
Risk of electric shock. Before starting work, must disconnect the motor from the
power supply. Observe safety information given in Electrical hazar
ds on page 9.
The motor can only be changed with an identical one from the same
manufacturer and marking.
In case other motors are used, the pump loses its CE certication.
1. Nut 2. Electric motor
3. Motor ang
e 4. Scr
ews o
f
ang
e
5. Cooling fan 6. Locking screw
7. Lock screw 8. Coupling element
9. Coupling (pump side) 10. Screw
11. Coupling (motor side) 12. Snap ring
13. Washer
1. Nut 2. Electric motor
3. Motor ange 4. Screws of ange
5. Cooling fan 6. Locking screw
7. Lock screw 8. Coupling element
9. Coupling (pump side) 10. Screw
11. Coupling (motor side) 12. Snap ring
13. Washer
Required tools:
▪ Wrench 16 mm
▪ Internal snap ring plier
▪ Allen key 3 mm
▪ Allen key 4 mm
▪ Allen key 6 mm
▪ Possibly a puller for the coupling
To replace the motor do the procedure as follows:
▪ Disconnect the motor power supply.
▪ Disconnect the motor main connections.
▪ Remove the motor connection nuts with wrench 16 mm.
300956027_002_A0 - 03/2022 - © Leybold
48
Maintenance
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