5. Crankshaft rotation on Giant Industries,
Inc. pumps should be made in the direction
designated by the arrows on the pump crank-
case. 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 ob-
tained from the charts on pages 4 and 5.
Dur-
ing 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 pump
-
ing system, remember: Check that the crank
-
case 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 leak
-
age 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 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.
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 re
-
strictions 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.
4. Use of a dampener is necessary to minimize
pulsation at drive elements, plumbing, con
-
nections, 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 pulsa
-
tion. 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.
