Page 32 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

Installation, Maintenance, and Repair of Horizontal Pumps 17

13. After the grout has cured, the baseplate or soleplate should be
checked for complete grouting by tapping the baseplate or sole-
plate with a steel bar. If grouting voids are found based on a “hol-
low” sound, holes should be drilled in the baseplate or soleplate
deck at each end of the voids and the voids filled with epoxy grout
without aggregate; one hole should be used for the grout and the
other hole as an air vent. A grease gun is normally used to force
the grout into voids. When pressure injection is used, install dial
indicators on the baseplate or soleplate deck to confirm that epoxy
placement is being accomplished without lifting the baseplate or
soleplate deck.
14. Forms should remain in place for a minimum of 24 hours except
where form removal is needed to trim back grout.

15. The leveling shims or wedges used to level the baseplate or sole-
plate may be left in place after grouting. If for some reason they
are removed after the grout has cured, the resulting voids should
be filled with grout without aggregate.

If leveling screws are used, they should be removed after the grout
has cured to allow the full equipment weight to be distributed
evenly over the grouted area. The holes should be caulked with
putty.

The foundation anchor bolts can now be retightened and the pump
and driver installed. The pump and driver are now ready for align-
ment.

Machinery Alignment

Chapter 5, Volume 3 of this series deals extensively with equipment
alignment, and it is not our intent to duplicate the efforts of others in this
area. However, here are several general steps to follow which will result
in a well-aligned, trouble-free machine:
I. The owner should insist that the installing agency use the reverse
indicator method of alignment, or the laser alignment method.
whenever the separation between shaft ends is larger than 50 per-
cent of the diameter at which the dial indicators contact the cou-
pling rim. The advantages of using this system far outweigh the
arguments for rim-and-face and other mechanical alignment meth-
ods. If you or your contractor are unfamiliar with reverse indica-