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DWU, DWXU
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 cannot 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.
(4)Loosen inner casing bolts and remove inner casing.
Note 1: Contaminated oil should be replaced. 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) Fill oil chamber with clean mineral oil.
(4) Replace all parts that are damaged.
(5) 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 {
System of Units (SI) and given for reference only.
EBARA Fluid Handling
www.pumpsebara.com
(t) 803 327-5005 • (f) 803 327-5097
} are in accordance with the International
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