Giant GXR - Manual (Page 2)

INSTALLATION INSTRUCTIONS
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty.
2. Pump operation must not exceed rated
pressure, volume, or RPM. A pressure relief
device must be installed in the discharge of the
system.
3. Acids, alkalines, or abrasive fluids cannot be
pumped unless approval in writing is obtained
before operation from Giant Industries, Inc.
4. Run the pump dry approximately 10 seconds
to drain the water before exposure to freezing
temperatures.
1. Prior to initial operation, Check for proper oil
level. DO NOT OVERFILL.
Use Giant Synthetic Oil
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.
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 instal-
lation. If you have unique requirements, please contact Giant Industries, Inc. or your local distributor
for assistance.
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.
NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600
1. For horizontal applications the pump should be
installed flat on a base to a maximum of a 15
degree angle of inclination to ensure optimum
lubrication.
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. Maximum inlet
fluid temperature is 80
o F.
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.
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 regulator.
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 plumb-
ing valves are open and that pumped media can flow
freely to the inlet of the pump.