AOpen DE7200 Series Instrucciones de operaciones descargar pdf (Pagina 31)

INSTALLATION

01 Jan 14 3-11

DE-7200VFDCentrifuge

3. Install two jack bolts in top half of each pillow block, and thread bolts through lower halves.

4. Turn jack bolts clockwise to lift pillow blocks sufficiently to permit removal of all shipping

blocks, and remove blocks.

5. Clean mounting surfaces of lower pillow block halves and base, and then apply a light coating

of grease or corrosion inhibitor to both surfaces.

6. Ensure that alignment pin holes in base are clean and unobstructed by inserting a tapered

reamer that matches the maximum diameter of the holes.

7. Insert four alignment pins into corresponding holes.

8. While turning jack bolts equally in a counterclockwise direction to slowly lower pillow blocks

onto base, use alignment pins to properly position pillow blocks before they contact base.

Remove jack bolts after pillow blocks are in full contact with base and mounting holes are

aligned.

9. Insert two pillow block assembly bolts through top half of each pillow block, and tighten bolts

into bottom half of pillow block evenly in accordance with applicable torque specification in

Section 5.

10. Use a brass hammer to fully seat alignment pins in bearing pillow blocks and base. Do not

tighten nuts on alignment pins.

11. Insert pillow block retaining bolts with washers and lockwashers through pillow block holes,

and tighten bolts incrementally to torque specified in Section 5.

12. Install and tighten all bolts along both sides of case cover.

13. Adjust drive belt tension in accordance with Preventive Maintenance in Section 5.

14. Engage coupling half with overload clutch, leaving about a 3/16” (5mm) gap, and tighten bolts.

15. Install and secure guards over belt and shaft.

FEED AND FLUSH CONNECTIONS

Vibration isolation is required to prevent damage to the centrifuge and piping system in case of

centrifuge imbalance. Consequently, a flexible connection is required. The feed assembly (Figure

3-9) supplied with the centrifuge has a flex joint to accept the customer’s mating flange and feed

and flush piping. The customer must supply a 2.50” raised face 150lb ANSI flange to mate with

the feed assembly flange. Refer to general arrangement drawing in Section 8 for liquid and solid

discharge chute connection flange dimensions and bolt patterns.

A source of fresh liquid is required for flushing the centrifuge prior to shutdown. To connect the

flush line, install a “T” fitting in the feed line with shutoff valves to permit selection of either the

feed line or the flush line (Figure 3-10). The shutoff valves are required to prevent flush liquid from

flowing back into the customer feed. A cleanout connection is also provided on the top case cover

near the solid discharge end (Figure 3-11). Liquid should be fed through this connection with the

centrifuge running to periodically remove accumulated solids.

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AOpen DE7200 Series Instrucciones de operaciones Pagina 31