Teikoku Electric Reverse Circulation Pump R42-517F4AM-0809U1-B

Ensure all valves are fully closed

Disconnect the power cables from the connection box

Drain pump per end user specific procedures

Insert bracing under piping to support potential loads

Remove discharge, suction, and reverse circulation flange bolting

Remove anchor bolting to slide pump out of piping

Inspect the threads on both ends of the rotor shaft for damage

Thread type verification for Teikoku Type-R (Plan 13-SE)

Mating Faces and Gasket Material

Check mating faces for nicks and burrs

Clean off any trace of old gasket material

Use a small brush or pointed tool for inaccessible areas

Inspect thrust face for scratches and chips

Refer to Figure 4-3 (L) for excess wear on thrust surface

Check dimension after bearing has been removed

Inspect wear inside of bearing bore

Visual Inspection of Rotor Assembly Shaft Sleeves and Thrust Surfaces

Inspect the general appearance of the shaft sleeves and thrust surfaces

Check for uniform wear at the bearing contact area

Is there excessive undercutting?

Check the following points for issues

Reassemble in the reverse manner of disassembly.

Rear Bearing Housing Installation

Install adjusting washer(s) into rear bearing housing.

Insert bearing with flat washer into front and rear bearing housings.

Position flat washer side of bearing in line with set screw hole.

While holding bearing down, tighten set screw.