Gorman-Rupp Pumps 81 1/2D3-X.75 3P 246091 and up - Manual (Page 8)

OM−00758 80 SERIES
PAGE B − 1 INSTALLATION
INSTALLATION − SECTION B
Review all SAFETY information in Section A.
Since pump installations are seldom identical, this
section offers only general recommendations and
practices required to inspect, position, and ar-
range the pump and piping.
Most of the information pertains to a standard
static lift application where the pump is posi-
tioned above the free level of liquid to be pumped.
If installed in a flooded suction application where
the liquid is supplied to the pump under pressure,
some of the information such as mounting, line
configuration, and priming must be tailored to the
specific application. Since the pressure supplied
to the pump is critical to performance and safety,
be sure to limit the incoming pressure to 50% of
the maximum permissible operating pressure as
shown on the pump performance curve.
For further assistance, contact your Gorman-Rupp
distributor or the Gorman-Rupp Company.
Pump Dimensions
See Figure 1 for the approximate physical dimen-
sions of this pump.
OUTLINE DRAWING
Figure 1. Pump Models 81 1/2D3−X.75 3P
PREINSTALLATION INSPECTION
The pump assembly was inspected and tested be-
fore shipment from the factory. Before installation,
inspect the pump for damage which may have oc-
curred during shipment. Check as follows:
a. Inspect the pump and motor for cracks,
dents, damaged threads, and other obvious
damage.
b. Check for and tighten loose attaching hard-
ware. Since gaskets tend to shrink after dry-