Installation, Operation, and Maintenance Manual

Installation

If necessary, temporarily use air relief tubing or drill vent holes in order to remove trapped air.

4. After the grout has completely hardened, tighten the foundation bolts.

It will take approximately 24 hours for the grout to harden.

5. Check the alignment.

6. Approximately fourteen days after the grout has been poured and the grout has completely dried, apply an oil-based paint to the exposed edges of the grout in order to prevent air and moisture from coming in contact with the grout.

Piping checklists

General piping checklist

Precautions

CAUTION:

• Never draw piping into place by using force at the flanged connections of the pump. This can impose dangerous strains on the unit and cause misalignment between the pump and driver. Pipe strain adversely affects the operation of the pump, which results in physical injury and damage to the equipment.

• Vary the capacity with the regulating valve in the discharge line. Never throttle the flow from the suction side. This action can result in decreased performance, unexpected heat generation, and equipment damage.

• Do not move the pump to the pipe. This could make final alignment impossible.

CAUTION:

Flange loads from the piping system, including those from the thermal expansion of the piping, must not exceed the limits of the pump. Casing deformation can result in contact with rotating parts, which can result in excess heat generation, sparks, and premature failure.

Piping guidelines

Guidelines for piping are given in the Hydraulic Institute Standards available from the Hydraulic

Institute at 9 Sylvan Way, Parsippany, NJ 07054-3802. You must review this document before you install the pump.

Checklist

Check Explanation/comment

Check that all piping is supported This helps to prevent: independently of, and lined up naturally with, the pump flange.

• Strain on the pump

• Misalignment between the pump and the drive unit

• Wear on the pump bearings, seal, and shafting

Keep the piping as straight as possible. Avoid unnecessary bends. Use 45° or long radius 90° fittings where necessary.

This helps to minimize friction losses.

Check that only necessary fittings This helps to minimize friction losses.

are used.

Make sure that the inside diame— ters match properly when you use flange joints.

Do not connect the piping to the — pump until:

• The grout for the baseplate or sub-base becomes hard.

• The hold-down bolts for the pump are tightened.

Checked

24 Model 3408 Installation, Operation, and Maintenance Manual