Teikoku Electric Reverse Circulation Pump R42-315F4AM-0404S1-C

Reassemble in the reverse manner of disassembly.

Rear Bearing Housing Installation

Install adjusting washer(s) into rear bearing housing.

Specify quantity and thickness of adjusting washers for proper rotor end play.

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

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

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

Pre-Disassembly Safety Measures

Observe and adhere to the end user specific lock out tag out procedures.

Fully close valves in discharge, suction, reverse circulation and utility piping.

Disconnect the power cables from the connection box prior to disassembly.

Drain pump per end user specific procedures.

Insert bracing under piping to account for potential piping loads.

Remove discharge, suction and reverse circulation flange bolting.

Pump Removal and Casing Disassembly

Inspect the rotor assembly shaft sleeves and thrust surfaces for the following issues

Is there excessive undercutting, pitting, or scoring?

Do the shaft sleeves and thrust surfaces require replacement?

Describe any observed issues or irregularities