Goulds Pumps ChemBasePlu - IOM - Manual (Page 12)

ChemBasePlus™ — 1/2002 Page 11 of 16
APPENDIX II
Insert Guide
The following guide is to assist with the field
installation of inserts if there is a need to
replace a damaged thread or to install a new
insert into a custom location. In order to
achieve a successful installation the following
procedures are recommended:
! WARNING !
Field installation should only be performed by
qualified personnel using suitable drilling
equipment. Personnel should be sure to use a
face mask to prevent inhalation of silica dust
as the ChemBasePlus™ casting is penetrated
during drilling operations. If MSDS
specifications are required, contact your local
Goulds representative. Also, be sure to utilize
protective eyewear while performing any
drilling operation.
1. It is recommended to utilize a carbide tip
drill bit to perform drilling procedure.
Please refer to Table 1 for drill bit size
recommendation. We suggest providing
a hole diameter that will allow ample
space to install the insert yet still maintain
a snug fit as to not need too much filler
epoxy resin.
Table 1
Hole Drill Size Recommendation
Insert Size Drill Size*
1 / 4 – 20 0.625 in.
5 / 16 – 18 0.625 in.
3 / 8 – 16 0.875 in.
1 / 2 – 13 1.000 in.
5 / 8 - 11 1.375 in.
*NOTE: Drill size listed above is minimum —
increasing the hole diameter by an extra 0.125
inches may assist in allowing for any hole
location variances established by installer.
2. Drill approximately 1/8” (.125) lower then
the given length of the provided insert.
3. Drill the new hole (Figure 1) or drill out
the damaged insert taking care not to
enlarge or elongate the hole into which
the new insert will be installed. Remove
all dust and metal particles from the
drilled hole using compressed air.
FIGURE 1
4. It is critical that perpendicularity in relation
to the surface of the ChemBasePlus™ is
maintained. Goulds prescribes two basic
methods of insuring that the insert will
achieve proper perpendicularity and are as
follows:
a) Fabricate a template (i.e. constructed of
plywood or metal) based off the number
of inserts. The template should be
designed to locate the holes off a
reference point located on the respective
drawing of the given baseplate (please
contact your Goulds Pumps
representative if you are in need of a
particular drawing or consult factory).
Fasten the insert to a stud with a nut on
the top side of the template