EBARA EPD, Optima - Manual (Page 30)

EBARA Fluid Handling
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(t) 803 327-5005 • (f) 803 327-5097 rev. 12/07
EBARA Submersible Sump/Drainage Pumps EPD / Optima
Disassembly and Assembly
1. Disassembly
When disassembling pump, have a piece of cardboard or wooden board ready to place
the different parts on as you work. Do not pile parts on top of each other. They should
be laid out neatly in rows. The O-ring and gasket can not be used again once they are
removed. Have replacement parts ready.
Disassemble in the following order, referring to the sectional view.
Be sure to cut off power source before beginning disassembly.
(1) Loosen casing bolts and remove casing.
(2) Loosen bolt at end of pump shaft and lift impeller off shaft.
(3) Remove pump shaft key and mechanical seal. (No shaft key for 1/3 HP pumps.)
(4) Loosen inner casing bolts and remove inner casing.
Note 1: Drain the lubricant oil into a container.
(5) Remove the mechanical seal from the main shaft.
Note 2: Be careful not to cut your fingers on the shaft key groove when pulling out
the mechanical seal.
Note 3: Be careful not to scratch or bend the pump shaft during disassembly.
2. Assembly
Re-assemble in reverse order of disassembly.
Be careful of the following points.
(1) During re-assembly, rotate the impeller by hand and check for smooth rotation.
(2) Replace the O-ring.
(3) Replace all parts that are damaged.
(4) Tighten bolts evenly.
Please obtain O-rings, and other parts from pump dealer.
* All specifications subject to change without notice.
In this catalog, the particulars in { } are in accordance with the International System
of Units (SI) and given for reference only.