Справочник Пользователя для Ingersoll-Rand 66M170-XXX-C

y Viton®and Hytrel® are registered trademarks of the DuPont Company y Loctite® is a registered trademark of Henkel Loctite Corporation y

y Santoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. y ARO® is a registered trademark of Ingersoll-Rand Company y

y 262™, 271™ and 572™ are trademarks of the DuPont Company y

Refer to the part views and descriptions as provided on 
pages 4 through 7 for parts identifi cation and service kit in-
formation.

Certain ARO “Smart Parts” are indicated which should be 
available for fast repair and reduction of down time.
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 part Material Options.
Provide a clean work surface to protect sensitive internal 
moving parts from contamination from dirt and foreign 
matter during service disassembly and reassembly.
Keep good records of service activity and include the 
pump in preventive maintenance program.
Before disassembling, empty captured material in the 
outlet manifold by turning the pump upside down to 
drain material from the pump.

Remove top manifold(s).
Remove (22) balls, (19) “O” rings and (21) seats.
Remove (15) fl uid caps.
Remove (14) screws, (6) washers, (7) diaphragms and (5) 
washers.
Remove (3) “O” rings.

NOTE: Do not scratch or mar the surface of (1) diaphragm 
rod.

Reassemble in reverse order.
Clean and inspect all parts. Replace worn or damaged 
parts with new parts as required.
Lubricate (1) diaphragm rod and (2) “O” ring with Key-
Lube “O” ring lube.
Use ARO pn 98931-T bullet (installation tool) to aid in in-
stallation of (2) “O” ring on (1) diaphragm rod.
Be certain (7) diaphragms align properly with (15) fluid 
caps before making fi nal torque adjustments on bolt and 
nuts to avoid twisting the diaphragm.
Re-check torque settings after pump has been re-started 
and run a while.

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The ARO diaphragm pump off ers high volume delivery even 
at low air pressure and a broad range of material compatibil-
ity options are available. Refer to the model and option chart. 
ARO pumps feature stall resistant design, modular air motor 
/ fl uid sections.
Air operated double diaphragm pumps utilize a pressure dif-
ferential in the air chambers to alternately create suction and 
a positive fl uid pressure in the fl uid chambers, valve checks 
insure a positive fl ow of fl uid.
Pump cycling will begin as air pressure is applied and it will 
continue to pump and keep up with the demand. It will build 
and maintain line pressure and will stop cycling once maxi-
mum line pressure is reached (dispensing device closed) and 
will resume pumping as needed.

damage, personal injury or property damage.
A filter capable of filtering out particles larger than 50 
microns should be used on the air supply. There is no lu-
brication required other than the “O” ring lubricant which 
is applied during assembly or repair.
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.

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.
Disconnect the air supply from the pump if it is to be in-
active for a few hours.
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 col-
lapse.
When the diaphragm pump is used in a forced-feed 
(fl ooded inlet) situation, it is recommended that a “check 
valve” be installed at the air inlet.
Secure the diaphragm pump legs to a suitable surface to 
insure against damage by vibration.

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