Specifications

ROTATING ASSEMBLY REMOVAL & INSTALLATION Document No. DER05026

Effective Date 28 Mar 08 Page 3 of 3

7. Check main bearings and conveyor bearings for looseness, noise, or rubbing. Replace any

defective bearings in accordance with replacement procedures in

DER05024 and DER05025.

8. Inspect pillow blocks for corrosion, distortion, nicks, cracks, burrs, fractures, or other defects.

Repair any minor defects, or replace if serious defects or cracks are found.

INSTALLATION

To install the rotating assembly, proceed as follows:

1. Using a suitable hoist capable of lifting at least 3500 lbs (1600 kg), lift rotating assembly from

cradle and lower onto base with pillow blocks in close alignment with mounting holes.

2. Use a brass hammer to fully seat alignment pins in bearing pillow blocks and base; do not

tighten nuts on alignment pins.

3. Insert mounting bolts with washers through holes. Tighten bolts in stages to torque specified

DER05029.

4. Install and tension drive belts between motor and bowl sheaves in accordance with

DER05023.

5. Insert spider into flexible coupling half on motor shaft, and slide coupling half back into

engagement with coupling half on conveyor drive gearbox shaft. Set gap between coupling

halves at about 0.125” (3mm). Install and tighten screws to secure coupling to shafts in

accordance with Rotex manual, KTR-N 40226 E, in Section 12.

6. Grease main bearings in accordance with lubrication chart in

DER05023 and the following

steps:

a. Apply electric power, start up centrifuge, and adjust bowl speed to 500 rpm.

b. While watching bearing temperature, inject new grease into pillow block until grease flows

from the outlet port on the bottom half of the pillow block at the belt side.

7. Close case cover, and secure with screws, tightening from center of cover outward in both

directions.

8. Install and secure belt guard over motor and bowl assembly sheaves.

9. Connect feed piping to feed component flange.

10. Apply electric power, start up centrifuge (refer to

DER04098). Carefully monitor performance,

and check for any unusual noise.

The content of this document is subject to change at any time. Information provided does not cover all details or variations possible

with DERRICK equipment, nor does it cover every contingency that may be met in conjunction with installation, operation,

maintenance, or troubleshooting of the equipment. Should additional information be required, or should situations arise that are not

covered by this manual, bring the matter to the attention of your local DERRICK representative or the Service Department at

DERRICK Corporation in Buffalo, New York.