Gorman-Rupp Pumps T6A60S-5.7 NG-ESP All serial numbers - Manual (Page 11)

SUPER T SERIES OM-06610
PAGE B - 3 INSTALLATION
POSITIONING PUMP
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam­
age to equipment. The bail is intended
for use in lifting the pump assembly
only. Suction and discharge hoses and
piping must be removed from the pump
before lifting.
Lifting
Pump unit weights will vary depending on the
mounting and drive provided. 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
equipment such as suction and discharge hoses
or piping before attempting to lift existing, installed
units.
The pump assembly can be seriously
damaged if the cables or chains used to lift
and move the unit are improperly wrapped
around the pump.
Mounting
Locate the pump in an accessible place as close as
practical to the liquid being pumped. Level mount­
ing is essential for proper operation.
The pump may have to be supported or shimmed
to provide for level operation or to eliminate vibra­
tion.
If the pump has been mounted on a moveable
base, make certain the base is stationary by setting
the brake and blocking the wheels before attempt­
ing to operate the pump.
To ensure sufficient lubrication to the engine, do
not position the pump and engine more than 15
_
off horizontal for continuous operation. The pump
and engine may be positioned up to 30
_
off hori­
zontal for intermittent operation only; however,
the engine manufacturer should be consulted for
continuous operation at angles greater than 15
_
.
Clearance
When positioning the pump, allow a minimum
clearance of 18 inches (457,2 mm) in front of the
enclosure suction cover to permit removal of the
cover and easy access to the pump.
FUEL SUPPLY
The amount of fuel required for the engine is meas­
ured in cubic feet per hour. This is calculated from
the BTU (British Thermal Unit) content of the natu­
ral gas supplied, and the horsepower required to
drive the pump. This unit requires 826 cubic feet
of natural gas per hour with 1000 BTU content at
10 inches of water column. The BTU content of
gas varies in the United States, therefore, it will be
necessary to contact your local gas supplier to de­
termine the BTU content of the natural gas in your
area.
Natural gas suppliers typically provide 2 psi of gas
to commercial accounts. To provide the optimal
gas supply to the engine, this must be reduced to
10 inches of water column. Install the pressure reg­
ulator supplied with the unit in the line supplying
the engine.
There is a 1‐inch pipe tee in the engine fuel line.
The tee is equipped with a reducer and a 1/4‐inch
pipe plug. Remove the pipe plug and install a pres­
sure gauge rated in inches of water column.
Open the fuel supply to the regulator and observe
the pressure gauge. If the reading is less or greater
than 10 inches of water column, remove the cap on
the regulator to expose the adjusting screw plug
beneath it. Turn the adjusting plug clockwise to in­
crease the fuel supply or counter‐clockwise to de­
crease the fuel supply.
When the supply is properly adjusted to 10 inches
of water column, reinstall the protective cap over
the adjusting screw on the regulator. Remove the
pressure gauge from the fuel line and reinstall the
1/4‐inch pipe plug to avoid vibration damage to the
gauge.