EBARA EVMU - Manual (Page 15)

Ebara Stainless Steel Vertical Multistage EVMU
Instructions and Operation
Ebara Fluid Handling
www.pumpsebara.com 15
(t) 803 327-5005 • (f) 803 327-5097 rev. 11/10
(8) Ensure that the rotating mechanical seal assembly is installed as detailed in Section 7A, steps
11 and 12.
(9) Carefully place the motor bracket (162) over the pump shaft and the tie rods and onto the outer
casing.
(10) replace the tie rod washers and nuts onto the tie rods finger tight.
(11) 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.
(12) Slide the stationary seal seat assembly (111-3)over the shaft and into place. Secure the assembly
by installing and tightening the 4 socket head screws (120-3).
(13) re-install the shaft pin (131-1).
(14) re-install the coupling by sliding one half and then the other over the shaft pin. Install the bolts
in the lower half of the coupling tightening only until the shaft pin is secured in place and the
coupling will not fall down the shaft. Final tightening of the coupling bolts will occur upon motor
installation.
(15) For reinstallation of the motor, see Section 5A.
7C – replacing the Mechanical Seal
EVMU3 13- EVMU 3 18 EVMU 32 2-2 – EVMU32 3-2
EVMU5 7 – EVMU 5 16 EVMU 45 1-1 – EVMU 45 1
EVMU10 4 – EVMU 1016 EVMU 64 1-1
EVMU18 3 – EVMU 18 11
(1) For instructions on removing the motor from the pump see section 6B.
(2) remove the coupling guards from each side of the pump motor support.
(3) remove the two socket head bolts that hold the shaft coupling together. remove the front half of
the shaft coupling exposing the shaft pin.
(4) Using pliers, carefully grasp the shaft pin (131-1) and remove it from the coupling and pump
shaft. This will release the pump shaft from the fixed half of the coupling assembly.
(5) remove the motor adapter assembly (051) that houses the upper bearing and the fixed portion
of the coupling assembly. Insert two screwdrivers or small pry bars into the groove between the
motor adapter (051) and the motor bracket (162) to separate them. Take care as not to damage
or crack these parts.
(6) remove the four small socket head bolts that secure the stationary seal seat (120-3). After
removing these bolts, remove the stationary seal assembly (111-3). Slide the stationary seal seat
over the pump shaft to remove.
Note: EVMU models 32, 45 and 64 listed in section 7C are equipped with a cartridge type
mechanical seal. You will be removing both the stationary and rotating pieces of the mechanical
seal in this step. After removal of the seal go to step 19.