Troubleshooting guide

9
306-518
Operation
Pressure Relief Procedure
PRESSURIZED FLUID HAZARD
The equipment stays pressurized until
pressure is manually relieved. to reduce
the risk of serious injury from pressur -
ized fluid, accidental spray from the valve or
splashing fluid, follow this procedure whenever you:
 Are instructed to relieve pressure
 Stop dispensing
 Check, clean or service any system equipment
 Install or clean dispensing devices
WARNING
1. Close the pump air regulator and the bleed-type
master air valve (required in your system).
2. Hold a metal part of the dispensing valve firmly to
a grounded metal waste container and trigger the
valve to relieve the fluid pressure.
COMPONENT RUPTURE HAZARD
The maximum working pressure of each
component in the system may not be the
same. T o reduce the risk of overpressur -
izing any component in the system, be sure you
know the maximum working pressure of each com -
ponent. Never exceed the maximum working pres -
sure of the lowest rated component in the system.
Overpressurizing any component can result in rup -
ture, fire, explosion, property damage, and serious
injury.
T
o 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:
5 (:1) ratio x 100 psi air =
500 psi fluid output
[5 (:1) ratio x 7 bar air = 35 bar fluid output]
Limit the air to the pump so that no air line or fluid
line component or accessory is overpressurized.
WARNING
WARNING
MOVING P ARTS HAZARD
Never operate the pump with the warn -
ing plate (17) or the identification plate
(41) removed. These plates protect your
fingers from pinching or amputation by moving
parts in the air motor .
Starting and Adjusting the Pump
1. With the air regulator (C) closed, open the bleed-
type master air valves (A) or , if so equipped, join
the quick disconnect coupler (M) to the male fitting
(L).
2.
Open the dispensing valve (J) into a grounded
metal waste container , making firm metal-to-metal
contact between the container and valve.
3. Open the pump air regulator (C) slowly , just until
the pump is running. When the pump is primed
and all air has been pushed out of the lines, close
the dispensing valve.
NOTE: When the pump is primed, and with suf ficient
air supplied, the pump starts when the dispensing
valve is opened and shuts of f when it is closed.
4. Adjust the air regulator until you get suf ficient flow
from the dispensing valve. Always run the pump at
the lowest speed necessary to get the desired re -
sults. Do not exceed the maximum working pres -
sure of any component in the system.
5. 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
accelerates quickly , or is running too fast, stop it
immediately and check the fluid supply . If the sup -
ply container 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 sol -
vent. Be sure to eliminate all air from the fluid
lines.
Continued on page 10.