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OPERATION
PREOPERATION PROCEDURES
CHECK POWER SOURCE
1. Using a calibrated fl ow meter and pres sure gauge, make
sure the hydraulic power source develops a fl ow of 7-9
gpm/26-34 Ipm at 1500-2000 psi/105-140 bar.
2. Make certain that the power source is equipped with
a relief valve set to open at 2150-2250 psi/150-155 bar
maximum.
3. Make certain that the power source re turn pressure does
not exceed 250 psi/17 bar.
4. Make sure the trash pump inlet is clear of debris. Re-
move any obstruction before operating.
CONNECT HOSES
1. Wipe all hose couplers with a clean lint free cloth before
making connections.
Do not connect pressure to the return port. Motor
shaft seal limit Is 250 psi/17 bar.
2. Connect the hoses from the hydraulic power source to
the couplers on the trash pump or trash pump hoses. It is a
good practice to connect return hose fi rst and disconnect it
last to minimize or avoid trapped pressure within the trash
pump motor.
Note:
If uncoupled hoses are left in the sun, pressure in-
crease inside the hoses might make them diffi cult to
connect. Whenever possible, connect the free ends of
the hoses together.
3. Observe the arrow on the couplers to ensure that the
fl ow is in the proper direc tion. The female coupler on the
trash pump is the inlet (pressure) coupler.
PUMP OPERATION
1. Observe all safety precautions.
2. Attach a 3-inch/76 mm diameter hose to the pump outlet.
For best performance, keep the discharge hose as short as
possible and lay it out to avoid sharp bends or kinks.
Do not attach a nozzle to the outlet end of the discharge
hose. For high-pressure water pumping, use a Stanley
SM20 or SM50 and nozzle. The TP03 is designed for high
GPM water fl ow at low water pressure (head).
3. Attach a rope or cable to the trash pump’s handle. Lower
the trash pump into the liquid to be pumped. Do not raise
or lower the trash pump by its hoses or couplers to avoid
damage to the hoses or couplers.
Never point the hose at bystanders.
4. Turn on the hydraulic power source. Watch for solids
in the liquid being pumped. If solids are excessive, the
discharge fl ow might decrease. If this happens, stop the
pump and check for the cause of the problem.
Under some conditions, the liquid being pumped might
be slowed enough so it can no longer push particles in
the liquid. If this happens, particles can accumulate in the
pumping chamber, causing further restriction. The impeller
then acts as a “grinding wheel” which causes acceler ated
trash pump wear. Reduced liquid fl ow can be caused by the
following:
• The trash pump sinks into solids at the bottom of the hole.
•
The end of the outlet hose is too high, causing an exces-
sive lift height for the column of liquid being pushed by the
trash pump. This slows the fl ow of liquid to a level where it
can no longer carry solids.
• The fl ow and pressure of hydraulic fl uid to the trash pump
is too low, which re duces impeller speed. A 20 percent de-
crease in hydraulic fl uid fl ow can reduce pump performance
by 50 percent. When operating at reduced hydraulic fl ow and
pressure, the end of the outlet hose should not be more than
30 ft/9 m above the liquid.
Note:
It will not damage the pump to operate it “dry.”
IMPORTANT
IMPORTANT
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