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 charts on pages 4
and 5. During operation, all rotating parts, shaft(s)
and coupling, must be covered with a protective
guard. Plunger area must have the cover plate (30)
secured in place. Do not step on or place weight on
the plate (30).
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.
IMPORTANT:
The service life of the seals is
maximized if a small amount of leakage occurs (a
few drops per minute from each plunger). Leakage
must be checked every day. If leakage becomes
a constant dripping, the plunger seals must be
changed.
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.
2
Installation of the Giant Industries, Inc., pump is
not a complicated procedure, but there are some
basic steps common to all pumps. The follow-
ing information is to be considered as a general
outline for installation. If you have unique re-
quirements, 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 inclination to
ensure optimum lubrication.
IMPORTANT :
If mounted on a vehicle with the
possibility of unlevelness and/or the pump speed is
betwen 300 and 500 RPM, the volume of oil should
be 1.9 Gal.(7.3 liters). To check, put the oil dipstick in
the bore situated next to the eye bolt (31).
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 cavita-
tion.
3. The discharge plumbing from the pump should be
properly sized to the flow rate to prevent line pres
-
sure 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 pul-
sation 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 re-
duce 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.
INSTALLATION INSTRUCTIONS
NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600.
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty
1. Prior to initial operation, add oil to crankcase so
that oil level is between the two lines on the oil dip-
stick. DO NOT OVERFILL.
Use Giant Recommended Oil
P/N 01154, or the equivalent to
SAE 85-90W Industrial Gear Lube.
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.
IMPORTANT:
When operating in high humidity or
wide temperature fluctuations, oil must be changed if
condensate or frothy oil occurs in crankcase.
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 be-
fore operation from Giant Industries, Inc.
4. Run the pump dry approximately 10 seconds to
drain the water before exposure to freezing tem-
peratures.
