EBARA EVMU - Manual (Page 17)

Ebara Stainless Steel Vertical Multistage EVMU
Instructions and Operation
Ebara Fluid Handling
www.pumpsebara.com 17
(t) 803 327-5005 • (f) 803 327-5097 rev. 11/10
(20) With the hole in the end of the pump shaft visible through the side opening of the motor bracket
(162), reinstall the upper motor adapter (051) and bearing assembly into the motor bracket.
Be sure that the motor mounting holes are aligned correctly and the hole in the end of the pump
shaft is lined-up with the hole in the back of the motor coupling behind the pump shaft.
(21) Next, reinstall the shaft pin (131-1) into the hole in the pump shaft making sure that it seats
inside the hole in the back of the coupling also. reattach the other coupling half and tighten the two
coupling bolts with an allen wrench. See torque specifications, page 21.
(22) refer to Section 5B for motor installation instructions.
7D – replacing the Mechanical Seal and Hydraulic assembly
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) remove the old mechanical seal assembly and the outer casing as detailed in Section 7C.
(2) remove the old hydraulic assembly.
(3) Ensure that the proper replacement hydraulic (stack) assembly has been selected and provided
for the pump.
(4) Lift the replacement hydraulic (stack) assembly and place it onto the bottom casing (006) ensuring
that it is seated properly. The bottom impeller should slip into the casing wear ring.
(5) 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.
(6) Place the outer casing (007) over the entire assembly and install it 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).
(7) 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.
(8) Ensure that the rotating mechanical seal assembly is installed as detailed in Section 7C, steps
10 and 11.
Note: EVMU models 32, 45 and 64 listed in section 7D are equipped with a cartridge type
mechanical seal; this step can be skipped. The cartridge seal will be installed at step 12.
Proceed to step 9.