Edwards nEXT 730D - Bearing Preload Check; Figure 24 Check the Bearing Preload

Figure 24 Check the bearing preload
2
1
A
A
CS/5283/A
1. Adjuster leg 2. Bearing adjuster nut1. Adjuster leg 2. Bearing adjuster nut
6.1 Bearing preload check
NOTICE:
Failur
e to ensure a correct preload on the bearing may shorten the service life of the
pump.
Fit and use the preload tool. While performing this check, record he posion of the test
indicator when a change in preload transion occurs.
If the test indicator falls within the pass limit, no further acon is required.
If the test indicator falls above or below the pass limit when a change in preload
transion occurs, adjust the bearing preload force. Using the preload tool body, rotate
the magnec bearing adjuster nut (viewed from top) clockwise if the test indicator is
above the pass limit, or counter-clockwise if the test indicator is below the pass limit.
We recommend that you monitor the preload force using the preload tool test plunger
between 1 mm rotaonal increments. Connue this process unl the test indicator falls
within the pass limit.
If no preload is detected, slowly turn the preload tool body clockwise unl preload is
established. When the preload has been veried, measure the preload force by
following the corresponding instrucons above.
06/2021 - ©Edwards Limited
Page 25300872820_002_C2
B8J203880_C
300872820_002_C2 - Assembly