Gorman-Rupp Pumps SFV4A-X 1531245 and up - Manual (Page 11)

OM-06628 SFV SERIES X‐PROOF PUMPS
PAGE B - 3 INSTALLATION
PUMP INSTALLATION
When installing or servicing the pump
or controls, follow all requirements for
the installation of wiring or electrical
equipment in hazardous locations as
outlined in the National Electric Code.
When entering the pump wet well for in­
stallation or service, follow all safety re­
quirements for confined space entry.
Failure to observe these requirements
could result in injury or death to person­
nel.
Do not allow the free end of the power
cable to enter the liquid being pumped.
The free end of the cable must be kept dry
to prevent liquid from wicking through the
cable and into the motor.
NOTE
Refer to the performance curve on the pump Spe­
cification Data Sheet when determining the most ef­
ficient piping installation. The recommended
maximum submergence depth is 65 feet.
Lifting
Death or serious personal injury and
damage to the pump or components
can occur if proper lifting procedures
are not observed. Make certain that
hoists, chains, slings or cables are in
good working condition and of suffi­
cient capacity and that they are posi­
tioned so that loads will be balanced
and the pump or components will not be
damaged when lifting. Do not attempt to
lift this pump by the motor or control
cables, or the piping. Attach proper lift­
ing equipment to the lifting bail fitted on
the pump. Lift the pump or component
only as high as necessary and keep per­
sonnel away from suspended objects.
Pump unit weights will vary depending on the
pump application. Check the shipping tag on the
unit packaging for the actual weight, and use lifting
equipment with appropriate capacity. Drain the
pump and remove all customer‐installed equip­
ment such as discharge hoses or piping before at­
tempting to lift existing, installed units.
Impeller Rotation
Check impeller rotation as follows before installing
the pump on rails or in a wet well.
While checking impeller rotation, secure
the pump to prevent the motor power
cable from coiling.
Suspend the pump by the lifting handle. Apply
power briefly and note the direction of pump kick­
back. As viewed from the top, the pump should
kick in a counterclockwise direction; this will indi­
cate that impeller rotation is correct.
If the pump kicks in a clockwise direction, impeller
rotation is incorrect. If the pump is powered by a
three‐phase motor, have a qualified electrician in­
terchange the control box connections of any two
pump motor power leads. Re‐check pump kick­
back; it should now be in a counterclockwise direc­
tion.
If rotation is incorrect on a single‐phase motor, con­
tact the factory before installing the pump.
Positioning the Pump (Guide Rail Application)
If the pump is to be installed where flam­
mable vapors may be present, the guide
rail system must be of a non‐sparking
design suitable for explosion‐proof ser­
vice. Failure to observe this require­