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Operation
Pressure Relief Procedure
WARNING
INJECTION HAZARD
To reduce the risk of serious injury, in-
cluding fluid injection or splashing in the
eyes or on the skin, always follow the
Pressure Relief Procedure whenever you
D Are instructed to relieve the pressure
D Shut off the pump
D Check or service any of the system equipment
D Install or clean the grease fitting couplers
D Stop dispensing
1. Close the pump air regulator.
2. Hold a metal part of the dispense valve firmly to a
grounded metal waste container and trigger to
relieve the fluid pressure.
Start-up
1. Close the air regulators and bleed-type master air
valves to all but one pump.
2. Open the master air valve from the compressor.
3. For the pump that is connected, trigger the dis-
pensing valve into a grounded metal waste con-
tainer making firm metal-to-metal contact between
the container and valve. Open the bleed-type
master air valve, and open the pump air regulator
slowly, just until the pump is running. When the
pump is primed and all air has been pushed out of
the lines, release the trigger.
4. If you have more than one pump, repeat this
process for each pump.
Note: When the pump is primed, and with suffi-
cient air supplied, the pump starts when the dis-
pensing valve is opened and shuts off when
closed.
5. Set the air pressure to each pump at the lowest
pressure needed to get the desired results.
WARNING
The maximum working pressure of each pump in
your system may not be the same. To reduce the
risk of over-pressurizing any part of your system,
be sure you know the maximum working pressure
rating of each pump and its connected compo-
nents. Never exceed the maximum working pres-
sure of the lowest rated component connected to a
particular pump.
To determine the fluid output pressure using the air
regulator reading, multiply the ratio of the pump by
the air pressure shown on the regulator gauge. For
example:
50:(1) ratio x 100 psi air = 5000 psi fluid output
50:(1) ratio x 0.7 MPa air = 35 MPa fluid output
50:(1) ratio x 7 bar air = 350 bar fluid output
Limit the air to the pump so that no air line or fluid
line component or accessory is over-pressurized.
CAUTION
Never allow the pump to run dry of the fluid being
pumped. A dry pump will quickly accelerate to a high
speed, possibly damaging itself. If your pump accel-
erates quickly, or is running too fast, stop it immedi-
ately and check the fluid supply. If the supply con-
tainer is empty and air has been pumped into the
lines, prime the pump and lines with fluid, or flush it
and leave it filled with a compatible solvent. Be sure
to eliminate all air from the fluid system.
Note: A pump runaway valve can be installed on the
air line to automatically shut off the pump if it starts to
run too fast.
6. Read and follow the instructions supplied with
each component in your system.
7. To shut off the system, always follow the Pressure
Relief Procedure at left.