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Starting and Adjusting the Pump
1. Fig. 4. Open all fluid shutoff valves (4–two) (36).
2. Open the spray gun at the last gun station and
keep it open while starting the pump.
3. Open the hydraulic supply line shutoff valve (W).
4. Run the pump until all air is purged from the fluid
lines.
5. Count the cycle rate of the pump.
6. Close the flow control valve until the cycle rate and
fluid pressure start to drop.
7. Open the flow control valve slightly until the cycle
rate and fluid pressure return to the desired level.
This method of setting the hydraulic controls
ensures proper pump operation and will prevent
pump runaway and damage if the fluid supply runs
out.
8. Adjust the fluid pressure to the lowest setting
necessary to get the desired results. Higher pres-
sures may not improve the spray pattern and will
cause premature component wear.
9. To adjust the spray pattern, follow the complete
instructions in your gun manual.
10. One at a time, open any other guns in the system
to purge air from the lines.
NOTE: In a circulating system, the pump will continue
to cycle as long as hydraulic fluid is supplied. In a
direct supply system, the pump starts when the gun is
opened, and stops when the gun is closed.
12
310570
Operation
ceed the maximum air/hydraulic and fluid working
pressure of the lowest rated component in your
system. See EQUIPMENT MISUSE HAZARD,
System Pressure, on page 3 and Technical Data
on page 22.
Do not allow the pump to run dry. It will quickly
accelerate to a high speed, causing damage. If your
pump is running too fast, stop it immediately and
check the fluid supply. If the container is empty and
air has been pumped into the lines, refill the con-
tainer and prime the pump and the lines, or flush and
leave it filled with a compatible solvent. Eliminate all
air from the fluid system.
Shutdown
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
For overnight shutdown, stop the pump at the bottom
of its stroke to prevent fluid from drying on the ex-
posed displacement rod and damaging the throat
packings. Relieve the pressure.
Always flush the pump before the fluid dries on the
displacement rod. See Flushing on page 13.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of serious injury, in-
cluding splashing in the eyes or on the
skin, and property damage, never ex-
CAUTION
WARNING
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