EBARA 80?25 Installation Operation & Maintenance page 46

EBARA Multi-Stage Dry Vacuum Pumps
CAUTION
!
On no account should any metal wedges, screwdrivers, or other steel materials be
used to pry apart or tap the coolers, as this could damage the components.
7. Once loosened, Slide the tube section of the cooler towards you.
8. Place the tube section on a plastic sheet.
9. Remove each of the tube sections in the same manner.
10. Transfer all of the water connections to the new coolers. (Time can be saved if a
second set of these fittings are already fitted to your replacement coolers.)
Before transferring the fittings, pay particular attention to the position of the
fittings.
11. Once all of the tube sections have been removed, inspect the canisters (still in
the frame) using the inspection mirror and flashlight.
12. Examine the manifold pipes to ensure that they are not more than 30% blocked.
If they are more than 30% blocked, remove the manifold pipes and clean them.
If it is necessary to remove and clean the manifold pipes, be sure to replace the
centering rings and O-rings. Use ScotchBrite if the canisters need cleaning.
13. Vacuum out any particulate, and wipe off any residual using I.P.A. or an
equivalent solvent.
14. Remove the replacement tube sections from their canisters and place the used
tube sections into the replacement canisters
15. Tighten the collar clamp. This will help to contain any fumes to the canisters.
16. Remove the old O-ring and position the new O-ring.
17. Ensure that the sealing faces on the replacement tube section and on the
canister are completely free of particles and deep scratches.
18. Slide the replacement tube sections into the canisters on the pump frame. Pay
close attention the orientation of the cooling water ports. They should be aligned
in a vertical position.
19. Replace and tighten the collar clamp.
20. Re-connect the water lines.
21. Place all soiled wipes and process media into the waste bins (as instructed to by
the local Safety Officer).
The pump must now be leak-checked before being put back into service.
930601-P
Pump Maintenance
38