Edwards DRYSTAR GV Series, Instruction Manual

Page: 47 / 58

© Edwards Limited 2009. All rights reserved. Page 41
Edwards and the Edwards logo are trademarks of Edwards Limited.
MAINTENANCE
A705-74-880 Issue K
5.13 Pump-motor
Note: If you have supplied your own pump - motor you are responsible for its maintenance which must be carried
out in accordance with the motor manufacturer’s recommendations. If the motor is an Edwards supplied
product, please consult the supplied literature or contact Edwards for further information.
5.13.1 Remove the pump-motor

Use the following procedure to remove the pump-motor. Ensure that the pump-motor is adequately
supported throughout and does not fall: the weight of the pump-motors are as follows:

GV260: 380 - 415 V, 50 Hz - 104 kg

GV260: 230 - 460 V, 60 Hz - 130 kg

GV410: 380 - 415 V, 50 Hz - 111 kg

GV410: 230 - 460 V, 60 Hz - 142 kg

GV600: 380 - 415 V, 50 Hz - 172 kg

GV600: 230 - 460 V, 60 Hz - 165 kg
1. Refer to Figure 1 . Remove the cover from the pump-motor terminal-box (17) and disconnect your electrical
supply cable from the terminal-box.
2. Refer to Figure 12 . Fit slings and suitable lifting equipment to support the pump-motor, then remove the fixing
bolts (1) which secure the pump-motor (19) to the coupling housing (7).
3. Use the lifting equipment to move the pump-motor (19) away from the pump, and then carefully lower the
pump-motor, so that it rests on the floor in an upright orientation (that is, with the drive hub (16) at the top).
4. Undo and remove the set screw (5) in the coupling hub (14).
5. Use a suitable puller tool to remove the coupling hub (14) from the pump shaft (9), and then remove the key (8)
from the pump shaft. Dispose of the key.
6. Dispose of the pump-motor: refer to Section 6.2 .
7. Inspect the polyurethane drive insert (18): if necessary, replace it.
5.13.2 Fit the new pump-motor
CAUTION
Ensure that the pump-motor flange and the bottom flange of the coupling housing are clean and free of burrs.
If not, the pump-motor and coupling housing may be misaligned and damage the pump-motor, the pump or the
drive coupling when you operate the pump.
WARNING
The pump-motor is heavy and can cause injury. Use suitable lifting equipment.
WARNING
The pump-motor is heavy and can cause injury. Use suitable lifting equipment.