Teikoku Electric Reverse Circulation Pump R42-526F4AM-1212V1-A

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

Pre-Disassembly Safety Measures

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

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.

Pump Removal and Casing Disassembly

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

Detailed Inspection for Defects

Check for the following defects

Is replacement necessary due to excessive defects?

Inspect thrust face for scratches and chips

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

Is the dimension check required after bearing removal?

Inspect wear inside of bearing bore

Refer to Figure 4-3 (A-B) for guidance

Reassemble in the reverse manner of disassembly.

Rear Bearing Housing Installation

Install adjusting washer(s) into rear bearing housing.

Ensure proper rotor end play with adjusting washers.

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

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