Page 3 of 8PH10A-XXX-XXX(en)
GENERAL DESCRIPTION
The1” metallic diaphragm pump offers high volume delivery even at low
airpressures, easy self priming, the ability to pump various viscosity ma-
terialsand the ability to pass solids (as stated in the chart above). The
pumpis offered with optional wetted parts configurations to satisfy a va-
rietyofapplication requirements. Refer to the “Model Description Chart”.
AIR AND LUBE REQUIREMENTS
WARNING EXCESSIVEAIR PRESSURE. Can cause person-
al injury,pump damage or property damage. Do not exceed
maximuminlet air pressure as stated on pump.
SAfilter capable of filtering out particles larger than 50 microns should
beused on the air supply.There is no lubrication required other than
the“O” ring lubricant which is applied during assembly or repair.
SIflubricatedair is present, make sure that it is compatible with the “O”
ringsand seals in the air motor section of the pump.
TRANSPORT AND STORAGE
SStorein a dry place, do not remove product from box during storage.
SDonot remove protection caps from inlet and outlet prior to installa-
tion.
SDonot drop or damage box, handle with care.
INSTALLATION
SSecure the diaphragm pump legs to a suitable surface to insure
againstdamage by excessive vibration.
SPumpcycle rate and operating pressure should be controlled by us-
ingan air regulator on the air supply.
STheoutlet material volume is governed not only by the air supply but
alsoby the material supply available at the inlet. The material supply
tubingshould not be too small or restrictive. Be sure not to use hose
whichmight collapse.
SUse flexible connections (such as hose) at the suction and dis-
charge, these connections should not be rigid piped and must be
compatiblewith the material being pumped.
SInstalla ground wire where applicable.
OPERATINGI NSTRUCTIONS
NOTICE Checkthe tightness of the (29) tie rod nuts after
firstrun 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).
SAlwaysflush the pump with a solvent compatible with the material
beingpumped if the material being pumped is subject to “setting up”
whennot in use for a period of time.
SDisconnectthe 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
thefluid hose or dispensing valve.
3. Turn off dispensing valve and allow pump to stall - check all fittings
forleakage.
4. Adjust the regulator as required to obtain desired operating pres-
sureand flow.
SHUTDOWN
SItis good practice to periodically flush entire pump system with a sol-
ventthat is compatible with the material being pumped, especially if
the material being pumped is subject to “settling-out” when not in
usefor a period of time.
SDisconnectthe air supply from the pump if it is to be inactive for a few
hours.
SERVICE
SCertainARO “Smart Parts” are indicated which should be available
forfast repair and reduction of down time.
SProvide a clean work surface to protect sensitive internal moving
partsfrom contamination from dirt and foreign matter during service
disassemblyand reassembly.
SKeepgood records of service activity and include pump in preven-
tivemaintenance program.
SUSEONLYGENUINE ARO REPLACEMENT PARTSTOASSURE
PERFORMANCEAND PRESSURE RATING.
SContact your local authorized ARO Service Center for parts and
customerservice information.
SServiceKits are available to service two separate Diaphragm Pump
functions:1. AIR SECTION, 2. FLUID SECTION. The Fluid Section
isdivided further to match typical active MATERIAL OPTIONS.
FLUID SECTION SERVICE
GENERALSERVICE NOTES:
SCleanand inspect each part thoroughly upon disassembly, look for
deepscratches on metallic surfaces and nicks, cuts or flat spots on
“O”rings. Replace any of the parts that are of questionablecondi-
tion.
SUpondisassembly,look for any remnants of “O” rings in the air motor
valveareas.
SToolsrequired: 3/16” Allen wrench, 3/8” Allen wrench, 4 mm Allen
wrench,6mm 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.
SLoctiteRisa registered trademarkof Henkel Loctite Corporation SARORis a registered trademark of Ingersoll-Rand Company S
S271tand572tare trademarks of HenkelLoctite Corporation S