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Disassembly and Assembly
Disassembly
When disassembling the 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 the
power source before beginning disassembly.
1.
Loosen the casing bolts and remove the casing.
2.
Loosen the bolt at the end of the pump shaft and lift the impeller off the shaft.
3.
Remove the pump shaft key and mechanical seal.
4.
Loosen the inner casing bolts and remove the 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.
Assembly
Re-assemble in the reverse order of disassembly.
Be careful of the following points:
• Rotate the impeller by hand and check for smooth rotation
• Replace the O-ring
• Replace all parts that are damaged
• Tighten bolts evenly
Obtain O-rings and other parts from your pump dealer
Oil Capacity: 7.7 oz. (WSP53AA, WSP73AA) 1.05 oz. (WSP33K1AA)
Oil Type: White, pure mineral oil; Esso Marcol 172 for pharmacology, cosmetics, and
agrifood industries
* All specifications are subject to change without notice.
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