Gorman-Rupp Pumps 04E1-GHH 1076270 and up - Manual (Page 11)

OM−03688 0 SERIES
PAGE B − 4 INSTALLATION
VEHICLE REQUIREMENTS
The following instructions apply equally to new in-
stallations, rebuilds or retrofits.
After installation, do not attempt to test run
or operate the pump and integral gearbox
before reading OPERATION, Section B.
The gearbox was shipped dry of lubrica-
tion, except for a residual coating from the
testing process of Dow Corning
‘Molykote
R
M Gear Guard’ (an anti-wear
additive, consisting of molybdenum disul-
phide solid lubricants suspended in petro-
leum oil). Lubricate the gearbox as in-
structed in LUBRICATION, Section E be-
fore attempting to operate the pump.
Tank Preparation
It is essential that any tank scale, dirt, or other for-
eign material be removed from the tank and piping
prior to pump installation. Failure to do so could re-
sult in clogging or damage to the pump.
Damage to the pump resulting from debris
in the suction line will not be covered by
the pump warranty.
Before connecting the suction and dis-
charge piping, carefully check the storage
tank and piping for construction debris
such as nuts, bolts, wire, weld slag, and
other foreign material. Install a commer-
cially available 80 mesh screen in the suc-
tion line to prevent debris from entering the
pump.
Vehicle Configuration
If the pump is to be used in tractor-trailer or
straight-truck plus trailer service, either a liquid fifth
wheel or jumper hoses are required. Be sure the
drive line of the tractor-trailer is long enough to al-
low installation of the gearbox at the proper angle,
ant that jumper hoses are long enough to allow a
full turning radius.
Brake Installation
When shifting from vehicle drive to pump
mode, or vice versa, input shaft rotation
must be limited to no less than 2 RPM or
no more than 15 RPM at the time of the
shift. Stopping the input shaft entirely may
cause a butt-shift" condition, which will
prevent the shift from occurring. Shaft rota-
tion in excess of 15 RPM causes raking of
the gears. Either of these conditions can
damage gears, resulting in premature
gearbox failure.
Vehicles with automatic transmissions should be
equipped with a brake on the transmission shaft to
slow, but not stop, shaft rotation during shifting.
Air Cylinder Pressure
For proper operation of the gearbox, the air shift
device requires air pressure of 70 to 140 psi (482 to
965 kPa). See Gear Shift Connections for further
information.
POSITIONING PUMP
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.