Gorman-Rupp Pumps 4D-X3 1P - Manual (Page 6)

D SERIES OM--01515
PAGE A -- 2 SAFETY
The electrical power used to operate
this pump is high enough to cause inju-
ry or death. Obtain the services of a qu-
alified electrician to make all electrical
connections. make certain that the
pump and motor are properly
grounded; never use gas pipe as an
electrical ground. Be sure that the in-
coming power matches the voltage and
phase of the pump and motor before
connecting the power source. Do not
run the pump if the voltage is not within
the limits.
All electrical connections must be in ac-
cordance with the National Electric
Code. If there is a conflict between the
instructions provided and N.E.C. speci-
fications, N.E.C. specifications shall
take precedence. All electrical equip-
ment supplied with this pump was in
conformance with N.E.C. requirements
in effect on the date of manufacture.
Failure to follow applicable specifica-
tions, or substitution of electrical parts
not supplied or approved by the man-
ufacturer, can result in severe injury or
death.
Never install a positive shut-off valve in the
discharge line; discharge restrictions will
cause excessive friction loss resulting in
overloading and destruction of pump and
drive components. It is strongly recom-
mended that unless absolutely necessary,
no positive shut-off valve be installed in the
suction line; excessive restriction will
cause incomplete filling of the diaphragm
chamber and result in shortened dia-
phragm life.