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PH10A-XXX-XXX (en)
GENERAL DESCRIPTION
The 1” metallic diaphragm pump offers high volume delivery even at low
air pressures, easy self priming, the ability to pump various viscosity ma-
terials and the ability to pass solids (as stated in the chart above). The
pump is offered with optional wetted parts configurations to satisfy a va-
riety of application requirements. Refer to the “Model Description Chart”.
AIR AND LUBE REQUIREMENTS
WARNING
EXCESSIVE AIR PRESSURE. Can cause person-
al injury, pump damage or property damage. Do not exceed
maximum inlet air pressure as stated on pump.
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A filter capable of filtering out particles larger than 50 microns should
be used on the air supply. There is no lubrication required other than
the “O” ring lubricant which is applied during assembly or repair.
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If lubricated air is present, make sure that it is compatible with the “O”
rings and seals in the air motor section of the pump.
TRANSPORT AND STORAGE
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Store in a dry place, do not remove product from box during storage.
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Do not remove protection caps from inlet and outlet prior to installa-
tion.
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Do not drop or damage box, handle with care.
INSTALLATION
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Secure the diaphragm pump legs to a suitable surface to ensure
against damage by excessive vibration.
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Pump cycle rate and operating pressure should be controlled by us-
ing an air regulator on the air supply.
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The outlet material volume is governed not only by the air supply but
also by the material supply available at the inlet. The material supply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
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Use flexible connections (such as hose) at the suction and dis-
charge, these connections should not be rigid piped and must be
compatible with the material being pumped.
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Install a ground wire where applicable.
OPERATING INSTRUCTIONS
NOTICE
Check the tightness of the (29) tie rod nuts after
first run in period due to possible compression set of the dia-
phragm.
If retorquing is required, be sure all pressure has been re-
lieved from the pump and supply lines. Loosen (26) cap screws.
Retorque (29) flange nuts to 280 - 300 in. lbs (31.6 - 33.9 Nm). Tight-
en (26) cap screws to 120 - 140 in. lbs (13.6 - 15.8 Nm).
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Always flush the pump with a solvent compatible with the material
being pumped if the material being pumped is subject to “setting up”
when not in use for a period of time.
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Disconnect the air supply from the pump if it is to be inactive for a few
hours.
START-UP
1. Turn pressure control knob until motor starts to cycle.
2. Allow pump to cycle slowly until it is primed and all air is purged from
the fluid hose or dispensing valve.
3. Turn off dispensing valve and allow pump to stall - check all fittings
for leakage.
4. Adjust the regulator as required to obtain desired operating pres-
sure and flow.
SHUTDOWN
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It is good practice to periodically flush entire pump system with a sol-
vent that is compatible with the material being pumped, especially if
the material being pumped is subject to “settling-out” when not in
use for a period of time.
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Disconnect the air supply from the pump if it is to be inactive for a few
hours.
SERVICE
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Certain ARO “Smart Parts” are indicated which should be available
for fast repair and reduction of down time.
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Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during service
disassembly and reassembly.
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Keep good records of service activity and include pump in preven-
tive maintenance program.
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USE ONLY GENUINE ARO REPLACEMENT PARTS TO ASSURE
PERFORMANCE AND PRESSURE RATING.
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Contact your local authorized ARO Service Center for parts and
customer service information.
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Service Kits are available to service two separate Diaphragm Pump
functions: 1. AIR SECTION, 2. FLUID SECTION. The Fluid Section
is divided further to match typical active MATERIAL OPTIONS.
FLUID SECTION SERVICE
GENERAL SERVICE NOTES:
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Clean and inspect each part thoroughly upon disassembly, look for
deep scratches on metallic surfaces and nicks, cuts or flat spots on
“O” rings. Replace any of the parts that are of questionable condi-
tion.
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Upon disassembly, look for any remnants of “O” rings in the air motor
valve areas.
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Tools required: 3/16” Allen wrench, 3/8” Allen wrench, 4 mm Allen
wrench, 6 mm Allen wrench, 7/16” wrench / socket, 1/2” wrench, 3/4”
wrench / socket, 7/8” wrench / socket, 2-1/2” wrench, 13 mm wrench
/ socket, “O” ring pick, plastic mallet and spanner wrench.
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Loctite
R
is a registered trademark of Henkel Loctite Corporation
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ARO
R
is a registered trademark of Ingersoll-Rand Company
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271
t
and 572
t
are trademarks of Henkel Loctite Corporation
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