EBARA DMLEU - Manual (Page 11)

Ebara Submersible Single Channel Sewage Pumps DMLEU
Operating, Installation and Maintenance
Ebara Fluid Handling
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Disassembly and reassembly
1. Disassembly:
a.) Unscrew and remove the bolts (120-2), and lift the motor out of the pump casing. Lay it down on its side carefully.
b.) Unscrew and remove the impeller bolt (275), then pull the impeller (021) off the motor shaft.
c.) Unscrew and remove the oil plug (193) and drain oil from seal chamber.
d.) Unscrew and remove the bolts (120-1), and remove the mechanical seal cover (016) carefully. Take care as there
may be oil remaining in the seal chamber.
d.) remove the mechanical seal carefully to keep from damaging the seal faces.
2. reassembly:
a.) Perform the above instructions in reverse order, replacing the o-ring, seal washer and gasket.
Note 1: after reassembly to the point of installing impeller on the shaft, turn the impeller by hand to make sure that it
rotates smoothly.
Note 2: It is recommended to use a screw adhesive (LOCKTITE 271) on the impeller bolt (275) during reassembly.
Note 3: after installing casing back onto pump, turn the impeller by hand through the pump suction to make sure that it
rotates smoothly without rubbing against the wear ring.