Gorman-Rupp Pumps SF4A-X 1531245 and up - Manual (Page 12)

OM-06629 SF SERIES X‐PROOF PUMPS
PAGE B - 3 INSTALLATION
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
ment could result in injury or death to
personnel.
The pump may equipped with a guide shoe for
mounting on optional guide rails. A discharge el­
bow/baseplate is also available as optional equip­
ment.
Use a suitable lifting device attached to the lifting
handle to lift the pump. Engage the guide shoe at
the top of the guide rails, and lower the pump into
the sump. When lowered into place, the guide
shoe connects to the optional discharge elbow/
baseplate, and the pump is automatically and se­
curely sealed to the piping system; the pump can
be removed or installed without personnel entering
the wet well.
For information on installing the guide rails, see the
literature accompanying the rails. Be sure the in­
stallation allows the pump to slide without binding
on the rails or baseplate.
NOTE
When engaging the guide shoe and elbow/base­
plate, make sure that the connection is not impeded
by mounting hardware, and that the guide shoe is
fully seated in the baseplate.
Reel in any slack control cable so that it is not
dragged into the pump suction.
Positioning the Pump (Stand Application)
Secure a discharge hose to the pump discharge
connection, and use a suitable lifting device at­
tached to the lifting handle to lower the pump into
the wet well. The recommended maximum sub­
mergence depth is 65 feet.
Make certain that the pump and stand sit level in
the wet well.
Reel in any slack control cable so that it is not
dragged into the pump suction.
Piping
The optional discharge elbow/baseplate is drilled
for connection to a discharge flange for slide rail
applications. Either hose or rigid pipe may be used
to make discharge connections.
If rigid discharge piping is installed, the line must
be independently supported to avoid vibration and
strain on the pump. For maximum pumping capac­
ity, keep the line as short and straight as possible.
Elbows and fittings used in discharge lines in­
crease friction loss; minimize their use.