EBARA EVMU - Manual (Page 16)

Ebara Stainless Steel Vertical Multistage EVMU
Instructions and Operation
Ebara Fluid Handling
www.pumpsebara.com 16
(t) 803 327-5005 • (f) 803 327-5097 rev. 11/10
(7) remove the tie rod nuts and washers. The motor bracket support (162) can now be removed.
(8) remove the old rotating seal assembly by lifting vertically off the pump shaft. The rotating
assembly is rubber boot mounted.
Do not remove the shaft sleeve that is below the rotating assembly.
(9) remove the outer casing (007), remove the o-rings (115-1) from the top and bottom of the outer
casing.
(10) Slide the new rotating seal assembly onto the shaft taking care not to scratch or touch the seal
face. Apply a small amount of non-petroleum based lubricant on the inside of the rotating assembly.
(i.e., dish soap, or Dow Corning #4 lubricant or similar) If touching the seal face is necessary,
gently wipe with a clean soft tissue.
(11) Push the rotating seal assembly into place on the shaft, seating the rubber boot snugly.
(12) Carefully, press the stationary seal assembly into the stationary seal housing (111-3). Be sure
that the stationary seal is evenly seated.
(13) Using a new outer casing o-ring (115-1) apply a light film of lubricant such as Dow corning #4 or
similar to the o-ring and place it in the lower o-ring groove in the outer casing (007). Ensure that
it is seated smoothly and evenly in the groove.
(14) Place the outer casing (007) over the entire assembly and install into the bottom casing (006).
The outer casing may not seem to seat at this time, but the tie rods will be tightened in a later
step, which will complete the seating of the outer casing (007).
(15) Using a new outer casing o-ring (115/1), apply a light film of lubricant such as Dow Corning #4,
or similar, to the o-ring and place it into the upper o-ring groove on the outer casing (007) ensuring
that it is seated smoothly into the o-ring groove.
(16) Carefully place the motor bracket (162) over the pump shaft and the tie rods and onto the outer
casing.
(17) replace the tie rod washers and nuts onto the tie rods finger tight.
(18) Commence staggered tightening of the tie rod nuts to ensure even distribution of pressure and
proper seating of the motor bracket onto the pump casing (007). Tighten all nuts to fit snugly.
See torque specifications, page 21.
(19) Slide the stationary seal seat assembly (111-3) (or cartridge seal assembly if equipped) over the
shaft and into place. Secure the assembly by installing and tightening the 4 socket head screws
(120-3).
Note: EVMU models 32, 45 and 64 After securing the seal in place as instructed above, tighten
the three setscrews in the locking collar.