2
INSTALLATION INSTRUCTIONS
4. Use of a dampener is necessary to mini-
mize 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 sys-
tems using a shut-off gun. A dampener must
be positioned downstream from the unloader.
5. Crankshaft rotation on Giant Industries,
Inc. pumps should be made in the direc-
tion designated by the arrows on the pump
crankcase. Reverse rotation may be safely
achieved by following a few guidelines avail-
able upon request from Giant Industries, Inc.
Required horsepower for system operation
can be obtained from the chart on page 3.
6. Before beginning operation of your pump-
ing 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.
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty.
2. Pump operation must not exceed rated pres-
sure, 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, add oil to the
crankcase so that oil level is between the
two lines on the oil dipstick. DO NOT
OVERFILL.
Use SAE 85-140 industrial gear 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.
1. The pump should be installed flat on a base
to a maximum of a 15 degree angle of inclina-
tion 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. If pumps
are to be operated at temperatures in excess of
140
o
F, it is important to insure a positive head
to the pump to prevent cavitation.
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.
NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600
