Graco 237011 Septic System User Manual


 
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Operation
7. If you are flushing:
a. Run the pump long enough to thoroughly clean
the pump and hoses.
b. Close the fluid control device and air regulator
(D).
c. Remove the suction hose (S) from the solvent
and place it in the fluid to be pumped.
8. If you are going to use the pump:
a. Start the pump. Be sure the suction hose is in
the supply container.
b. If you are using this pump to spray fluid, re-
lieve the pressure, then install a spray tip in
the gun. Trigger the gun into a grounded metal
waste container to prime the hose. Adjust the
pump pressure just enough to completely at-
omize the fluid. Higher pressures cause pre-
mature spray tip and pump wear.
WARNING
PRESSURIZED EQUIPMENT HAZARD
To reduce the risk of a serious injury whenever you
are instructed to relieve pressure, follow the Pres-
sure Relief Procedure on page 10.
c. In a direct supply system, the pump will start
and stop as the spray gun, dispensing valve,
or fluid outlet valve is opened and closed.
d. In a circulating system, the pump runs continu-
ously and speeds up or slows down as supply
demands until the air supply is shut off.
CAUTION
Never allow the pump to run dry of fluid. A dry pump
will accelerate to a high speed, possibly damaging
itself. If your pump accelerates quickly, or is running
too fast, stop it immediately and check the fluid
supply. If the supply is empty and air has been
pumped into the lines, refill the container and prime
the pump and lines with fluid, or flush and leave filled
with compatible solvent. Be sure to eliminate all air
from the system. A Pump Runaway Valve, Part No.
224040, is available.
9. If you are shutting down the pump:
a. Flush the pump before shutting down, espe-
cially if pumping a material that will set up.
b. Remove the suction hose from the fluid con-
tainer and run the pump until the fluid is forced
out of the system, then shut off the air supply
immediately.
c. Relieve the pressure.
WARNING
PRESSURIZED EQUIPMENT HAZARD
To reduce the risk of a serious injury whenever you
are instructed to relieve pressure, follow the Pres-
sure Relief Procedure on page 10.
d. Refer to the Maintenance instructions on
page 14.
Fig. 5
D
C
C
S
E
0232
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