LP460 inst

Installation of the Giant Industries, Inc.,
pump is not a complicated procedure, but
there are some basic steps common to all
pumps. The following information is to be
considered as a general outline for installation. If you have unique requirements,
please contact Giant Industries, Inc. or your
local distributor for assistance.
4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing,
connections, and other system areas. The
use of a dampener with Giant Industries, Inc.
pumps is optional, although recommended by
Giant Industries, Inc. to further reduce system
pulsation. Dampeners can also reduce the severity of pressure spikes that occur in systems
using a shut-off gun. A dampener must be
positioned downstream from the unloader.
1. The pump should be installed flat on a base
to a maximum of a 15 degree angle of inclination to ensure optimum lubrication.
5. Crankshaft rotation on Giant Industries, Inc.
pumps should be made in the direction designated by the arrows on the pump crankcase.
Reverse rotation may be safely achieved by
following a few guidelines available upon
request from Giant Industries, Inc. Required
horsepower for system operation can be obtained from the chart on page 3.
2. The inlet to the pump should be sized for the
flow rate of the pump with no unnecessary restrictions that can cause cavitation. Teflon tape
should be used to seal all joints. If pumps are to
be operated at temperatures in excess of 1400
F, it is important to insure a positive head to the
pump to prevent cavitation. If there is danger
of frost, the water in the pump and in the pump
fittings (particularly the unloader valve) must be
emptied. Use the second discharge port and run
the pump dry for 1-2 minutes.
6. Before beginning operation of your pumping system, remember: Check that the crankcase and seal areas have been properly
lubricated per recommended schedules. Do
not run the pump dry for extended periods of
time. Cavitation will result in severe damage.
Always remember to check that all plumbing
valves are open and that pumped media can
flow freely to the inlet of the pump.
3. The discharge plumbing from the pump
should be properly sized to the flow rate to
prevent line pressure loss to the work area. It
is essential to provide a safety bypass valve
between the pump and the work area to protect
the pump from pressure spikes in the event of a
blockage or the use of a shut-off gun.
Finally, remember that high pressure operation in a pump system has many advantages. But, if it
is used carelessly and without regard to its potential hazard, it can cause serious injury.
Failure to comply with any of these conditions invalidates the warranty.
1. Prior to initial operation, add oil to the
crankcase so that oil level is between the
two lines on the oil dipstick. DO NOT
2. Pump operation must not exceed rated
pressure, volume, or RPM. A pressure relief
device must be installed in the discharge of the
Use SAE 90 Industrial gear oil or
Giant’s p/n 01154
3. Acids, alkalines, or abrasive fluids cannot
be pumped unless approval in writing is obtained before operation from Giant Industries,
Crankcase oil should be changed after
the first 50 hours of operation, then at regular intervals of 500 hours or less depending
on operating conditions.
4. Run the pump dry approximately 10 seconds to drain the water before exposure to
freezing temperatures.
Download PDF