Goulds Pumps 3393 - IOM - Manual (Page 71)

Maintenance
16. Unscrew nuts (425) and back off the bearing housing (228C) using the jacking screw
(418).
17. Unscrew cap screws (371C) and confirm that the bearing housing cover (119) is free to
move.
18. Remove bearing housing (228C).
19. Remove the bearing housing cover o-ring (412). Do not reuse the o-ring.
20. Bend back the lock washer tab (382) and remove bearing nut (136A) and lock washer
(382).
21. Remove ball bearings (409) with the bearing puller.
22. Remove the mechanical seal and gland as noted in the instructions for removal of the
mechanical seal.
23. Seal chamber (184) and seal chamber o-ring (412H) can now be removed from the
discharge casing (100D). Pull the housing toward the shaft end axially.
24. Remove cap screws (372H) holding balance drum locking plate (519) to balance drum
(300).
25. Remove balance drum locking plate and balance drum locking plate key (178R).
26. Using a permanent marker, place an alignment mark on the shaft and balance drum.
27. Brace the shaft to prevent it rotating, insert threaded rods in the balance drum holes and
rotate the balance drum by 30 O to clear the locking tabs on the shaft.
28. Remove balance drum and balance drum o-ring (412X) using the threaded rod. Do not
reuse balance drum o-ring.
29. Insert threaded rods into the balance drum stator and remove axially. Remove balance
drum stator (300A) and balance drum stator o--ring (496U). Do not reuse balance drum
stator oring.
Model 3393 Installation, Operation, and Maintenance Manual 69