Use and Care Manual

ManualsBrandsARO ManualsAutomotivePump ASM, 3/4 in. Metal Diaphragm Pump

INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE

RELEASED: 2-14-20

REVISED: 6-12-20

(REV: C)

3/4" DIAPHRAGM PUMP

1:1 RATIO (METALLIC)

READ THIS MANUAL CAREFULLY BEFORE INSTALLING,

OPERATING OR SERVICING THIS EQUIPMENT.

It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.

INGERSOLL RAND COMPANY LTD

209 NORTH MAIN STREET - BRYAN, OHIO 43506

arozone.com

OPERATOR’S MANUAL 66607X-X-A

66608X-X-A

SERVICE KITS

Refer to the Model Description Chart to match the pump

material options.

637118-C for air section repair (see page 6).

637119-XXX-C for uid section repair with seats (see page 4).

637119-XX-C for uid section repair without seats (see page 4).

637167 Abrasion Resistant Conversion Kit is available for use

in heavy and abrasive material applications (see page 4

PUMP DATA

Models .............. See “Model Description Chart” for “-XXX”

Pump Type ........... Metallic Air Operated Double Diaphragm

Material ............. See “Model Description Chart”

Weight

Aluminum ....................... 17.5 lbs (7.94 kgs)

Maximum Air Inlet Pressure ........ 120 psig (8.3 bar)

Maximum Material Inlet Pressure ... 10 psig (0.69 bar)

Maximum Outlet Pressure .......... 120 psig (8.3 bar)

Maximum Flow Rate (ooded inlet) 33 gpm (125 lpm)

Displacement / Cycle @ 100 psig

Standard Diaphragm ............. 0.15 gal. (0.57 lit.)

Maximum Particle Size ............. 1/8" dia. (3.2 mm)

Maximum Temperature Limits (diaphragm / ball / seat material)

Acetal .....................

-20⁰ to 180⁰ F (-29⁰ to 82⁰ C)

E.P.R. / EPDM ...............

-60⁰ to 280⁰ F (-51⁰ to 138⁰ C)

Hytrel® ..................... -20⁰ to 180⁰ F (-29⁰ to 82⁰ C)

Neoprene .................. 0⁰ to 200⁰ F (-18⁰ to 93⁰ C)

Nitrile. . . . . . . . . . . . . . . . . . . . . . 10⁰ to 180⁰ F (-12⁰ to 82⁰ C)

Polypropylene ............. 32⁰ to 175⁰ F (0⁰ to 79⁰ C)

Polyurethane .............. -10⁰ to 150⁰ F (-23⁰ to 66⁰ C)

Kynar® PVDF ............... 10⁰ to 200⁰ F (-12⁰ to 93⁰ C)

Santoprene® ............... -40⁰ to 225⁰ F (-40⁰ to 107⁰ C)

PTFE ...................... 40⁰ to 225⁰ F (4⁰ to 107⁰ C)

Viton® ..................... -40⁰ to 350⁰ F (-40⁰ to 177⁰ C)

Dimensional Data ............. See page 8

Noise Level @

70 psig, 60 cpm



............. 78.3 dB(A)





Tested with 93110 muer installed.



The pump sound pressure levels published here have been updated to an

Equivalent Continuous Sound Level (LA

) to meet the intent of ANSI S1.13-1971,

CAGI- PNEUROP S5.1 using four microphone locations.

NOTICE: All possible options are shown in the chart. However, certain

combinations may not be recommended, consult a representative or the

factory if you have questions concerning availability.

3/4" DIAPHRAGM PUMP

6660XX-XXX-A

Figure 1

MODEL DESCRIPTION CHART

6660 X X X X X A

6660XX XXX A

637119 XX

DIAPHRAGMBALL

FLUID SECTION SERVICE KIT SELECTION

EXAMPLE:MODEL # 666070-1EB-A

Fluid Section Service Kit # 637119-EB-C

CENTER BODY MATERIAL

FLUID CAP / MANIFOLD MATERIAL

7 - Aluminum, NPTF

8 - Aluminum, BSP

SEAT MATERIAL

1 - Aluminum 4 - PVDF

2 - 316 Stainless Steel

3 - Polypropylene

BALL MATERIAL

8 - Hard 440 Stainless Steel

0 - Aluminum, Single

A - Aluminum, Single

(Steel Hardware)

1 - Neoprene

6 - Acetal

2 - Nitrile

8 - Polyurethane

3 - Viton

A - Stainless Steel

4 - PTFE

C - Hytrel

E - Santoprene

DIAPHRAGM MATERIAL

1 - Neoprene

2 - Nitrile

4 - PTFE / Santoprene

3 - Viton

9 - Hytrel

B - Santoprene

5 - Carbon Steel

(Stainless Steel Hardware)

Summary of content (8 pages)

PAGE 1
OPERATOR’S MANUAL 66607X-X-A 66608X-X-A RELEASED: 2-14-20 REVISED: 6-12-20 (REV: C) INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE 3/4" DIAPHRAGM PUMP 1:1 RATIO (METALLIC) READ THIS MANUAL CAREFULLY BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT. It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference. SERVICE KITS 6660XX-XXX-A 3/4" DIAPHRAGM PUMP Refer to the Model Description Chart to match the pump material options.
PAGE 2
OPERATING AND SAFETY PRECAUTIONS READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE. outlet hose or piping from pump. EXCESSIVE AIR PRESSURE HAZARDOUS MATERIALS WARNING HAZARDOUS MATERIALS. Can cause STATIC SPARK HAZARDOUS PRESSURE serious injury or property damage. Do not attempt to return a pump to the factory or service center that contains hazardous material. Safe handling practices WARNING EXCESSIVE AIR PRESSURE.
PAGE 3
GENERAL DESCRIPTION MAINTENANCE The ARO diaphragm pump offers high volume delivery even at low air pressure and a broad range of material compatibility options available. Refer to the model and option chart. ARO pumps feature stall resistant design, modular air motor / fluid sections. Air operated double diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction and positive fluid pressure in the fluid chambers, valve checks ensure a positive flow of fluid.
PAGE 4
PARTS LIST / 6660XX-X-A FLUID SECTION Fluid Section Service Kits (637119-XXX-C OR 637119-XX-C) For Fluid Kits With Seats:  637119-XXX-C Fluid Section Service Kits include: Seats (see SEAT Option, refer to -XXX in chart below), Balls (see BALL Option, refer to -XXX in chart below), Diaphragms (see DIAPHRAGM Option, refer to -XXX in chart below), plus “O” ring items (2), (3), and (19) listed below plus 93706-1 Key Lube grease packet (see page 6).
PAGE 5
15 29 PARTS LIST / 6660XX-X-X-A FLUID SECTION TORQUE REQUIREMENTS NOTE: DO NOT OVERTIGHTEN FASTENERS (14) Bolt, 25 - 30 ft lbs (33.9 - 40.7 Nm). (26) Bolts and (29) nuts, 120 - 140 in. lbs (13.6 - 15.8 Nm). (105) 40 - 50 in. lbs (4.5- 5.6 Nm). LUBRICATION / SEALANTS Apply Loctite 271 to threads. Apply Key-Lube to all “O” rings, “U” Cups & mating parts. Apply anti-seize compound to threads and bolt and nut flange heads which contact pump case when using stainless steel fasteners.
PAGE 6
PARTS LIST / 6660XX-X-X-A AIR MOTOR SECTION  Indicates parts included in 637118-C Air Section Service Kit. SERVICE KIT NOTE: Service Kit 637118-C is a general repair kit for all 3/4" and larger ARO diaphragm pump air motors. It contains extra “O” Rings and other parts that may not be needed to service this model.
PAGE 7
MAJOR VALVE See cross section detail figure 4. PARTS LIST / 6660XX-X-X-A AIR MOTOR SECTION MAJOR VALVE CROSS SECTION DETAIL 109 110 112 114 113 115 111 116 117 112 113 118 114 115 105 Figure 4 101 Apply Key-Lube grease to all “O” rings, “U” Cups andmating parts. Apply Loctite 271 to threads. Apply Loctite 262 to threads. Apply Loctite 572 to threads.
PAGE 8
TROUBLESHOOTING Product discharged from exhaust outlet. y Check for diaphragm rupture. y Check tightness of diaphragm nut. Air bubbles in product discharge. y Check connections of suction plumbing. y Check “O” rings between intake manifold and fluid caps. y Check tightness of diaphragm nut. Low output volume, erratic flow, or no flow. y Check air supply. y Check for plugged outlet hose. y Check for kinked (restrictive) outlet material hose. y Check for kinked (restrictive) or collapsed inlet material hose.