Check The Direction Of Rotation - Edwards HV30000 Instruction Manual

3.10

Check the direction of rotation

Obey the safety instructions given below. If you do not, you can cause injury to people or damage
to the pump/motor.
Blank the inlet or connect the HV pump to the vacuum system before you check the direction of pump

rotation. If you do not, there is danger of objects being trapped in the rotating pump rotors.
Ensure that you do not come into contact with the shaft, the coupling or the drive system when you operate

the pump. If you do, you may be injured by the rotating components.
After you have connected the drive/transmission or connected the electrical supply to the pump motor, check the
direction of rotation of the pump as follows:
1. If necessary (that is, to make it easier to see the pump drive shaft), temporarily remove any guard over the drive
coupling (if fitted).
2. Refer to Figure 2. Watch the pump drive shaft or the coupling while you start up the pump (refer to
then shut down the pump (refer to
3. Check that the pump drive shaft or coupling rotated correctly in the expected direction.
4. If the direction of rotation was incorrect
Check the installation of the drive and transmission system and reconfigure as appropriate.

5. Perform the direction of rotation check from
direction.
6. If you have removed a guard over the drive coupling (as in
© Edwards Limited 2008. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
Section 4.3) after two seconds or so.
Step 2 again, to ensure that the pump now rotates in the correct
Step 1 above), refit the guard.
A313-01-880 Issue A
Section 4.2),
Page 21