Ingersoll Rand Diaphragm Pump 6661-0B-244-C-CA2120129

6661-0B-244-C-CA2120129

OPERATOR'S MANUAL      66610X-X-C

1' DIAPHRAGM PUMP

1:1 RATIO (METALLIC)

PUMP DATA

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

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

Material ............ see “Model Description Chart”.

Weight .... ............ Aluminum 19 lbs (8.62 kg)

Cast Iron 31 lbs (14.06 kg) .............

Stainless Steel 36 lbs (16.33 kg) .........

[add 8 lbs (3.63 kg) for cast iron air motor section]

Maximum Air Inlet Pressure ......... 120 p.s.i. (8.3 bar)

Maximum Material Inlet Pressure ..... 10 p.s.i. (0.69 bar)

Maximum Outlet Pressure .......... 120 p.s.i. (8.3 bar)

Maximum Flow Rate (flooded inlet) ... 35 g.p.m. (133 l.p.m.)

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

Maximum Temperature Limits (diaphragm / ball / seal material)

Acetal 10 .................  to 180 F (-12 to 82 C)

E.P.R. / EPDM -60 ...........  to 280 F (-51 to 138 C)

Hytrel ................ -20 to 150 F (-29 to 66 C)

Neoprene 0 ..............  to 200 F (-18 to 93 C)

Nitrile 10 .................  to 180 F (-12 to 82 C)

Polypropylene 35 ...........  to 175 F (2 to 79 C)

Polyurethane 10 ............  to 150 F (-12 to 66 C)

Kynar PVDF 10 ...........  to 200 F (-12 to 93 C)

Santoprene ........... -40 to 225 F (-40 to 107 C)

PTFE ........... 40 to 225 F (4 to 107 C)

Viton ................ -40 to 350 F (-40 to 177 C)

Dimensional Data ................ see page 8.

Noise Level @ 70 p.s.i., 60 c.p.m. ..... 64.5 db(A)*

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

Sound Level (LAeq) 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.

MODEL DESCRIPTION CHART

OPERATING AND SAFETY PRECAUTIONS

READ, UNDERSTAND, AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.

WARNING EXCESSIVE AIR PRESSURE. Can cause personal injury, pump damage or property damage.

 Do not exceed the maximum inlet air pressure as stated on the pump model plate.

 Be sure material hoses and other components are able to withstand fluid pressures developed by this pump. Check all hoses for damage or wear. Be certain dispensing device is clean and in proper working condition.

WARNING STATIC SPARK. Can cause explosion resulting in severe injury or death. Ground pump and pumping system.

 Sparks can ignite flammable material and vapors.

 The pumping system and object being sprayed must be

grounded when it is pumping, flushing, recirculating or spraying flammable materials such as paints, solvents, lacquers, etc. or used in a location where surrounding atmosphere is conducive to spontaneous combustion. Ground the dispensing valve or device, containers, hoses and any object to which material is being pumped.

 Use the pump grounding screw terminal provided. Use ARO part no. 66885-1 ground kit or connect a suitable ground wire(12 ga. min.) to a good earth ground source.

 Secure pump, connections and all contact points to avoid vibration and generation of contact or static spark.

 Consult local building codes and electrical codes for specific grounding requirements.

 After grounding, periodically verify continuity of electrical path to ground. Test with an ohmmeter from each component (e.g., hoses, pump, clamps, container, spray gun, etc.) to ground to insure continuity. Ohmmeter should show 0.1 ohms or less.

 Submerse the outlet hose end, dispensing valve or device in the material being dispensed if possible.(Avoid free streaming of material being dispensed.)

 Use hoses incorporating a static wire.

 Use proper ventilation.

 Keep inflammables away from heat, open flames and sparks.

 Keep containers closed when not in use.

WARNING Pump exhaust may contain contaminants. Can cause severe injury. Pipe exhaust away from work area and personnel.

 In the event of a diaphragm rupture material can be forced out of the air exhaust muffler.

 Pipe the exhaust to a safe remote location when pumping hazardous or inflammable materials.

 Use a grounded 3/8” minimum i.d. hose between the pump and the muffler.

WARNING HAZARDOUS PRESSURE. Can result in serious injury or property damage. Do not service or clean pump, hoses or dispensing valve while the system is pressurized.

 Disconnect air supply line and relieve pressure from the system by opening dispensing valve or device and / or carefully and slowly loosening and removing outlet hose or piping from pump.

WARNING HAZARDOUSMATERIALS.Can cause 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 must comply with local and national laws and safety code requirements.

 Obtain Material Safety Data Sheets on all materials from the supplier for proper handling instructions.

WARNING EXPLOSION HAZARD. Models containing aluminum wetted parts cannot be used with 1,1,1-trichloroethane, methylene chloride or other halogenated hydrocarbon solvents which may react and explode.

 Check pump motor section, fluid caps, manifolds and all wetted parts to assure compatibility before using with solvents of this type.

CAUTION Verify the chemical compatibility of the pump wetted parts and the substance being pumped, flushed or recirculated. Chemical compatibility may change with temperature and concentration of the chemical(s) within the substances being pumped, flushed or circulated. For specific fluid compatibility, consult the chemical manufacturer.

CAUTION Maximum temperatures are based on mechanical stress only. Certain chemicals will significantly reduce  maximum safe operating temperature. Consult the chemical manufacturer for chemical compatibility and temperature limits. Refer to PUMP DATA on page 1 of this manual.

CAUTION Be certain all operators of this equipment have been trained for safe working practices, understand it’s limitations, and wear safety goggles / equipment when required.

CAUTION Do not use the pump for the structural support of the piping system. Be certain the system components are properly supported to prevent stress on the pump parts.

 Suction and discharge connections should be flexible connections(such as hose), not rigid piped, and should be compatible with the substance being pumped.

CAUTION Prevent unnecessary damage to the pump. Do not allow pump to operate when out of material for long periods of time.

 Disconnect air line from pump when system sits idle for long periods of time.

CAUTION Use only genuine ARO replacement parts to assure compatible pressure rating and longest service life.

NOTICE Replacement warning labels are available upon request: ‘‘Static Spark pn \ 93616-1 & Diaphragm Rupture pn \93122.”

WARNING= Hazards or unsafe practices which could result in severe personal injury, death or substantial property damage.

CAUTION= Hazards or unsafe practices which could result in minor personal injury, product or property damage.

NOTICE= Important installation, operation or maintenance information.

GENERAL DESCRIPTION

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, ball checks insure a positive flow of fluid.

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 maximum line pressure is reached (dispensing device closed) and will resume pumping as needed.

AIR AND LUBE REQUIREMENTS

WARNING EXCESSIVE AIR PRESSURE. Can cause pump damage, personal injury or property damage.

 A filter capable of filtering out particles larger than 50microns 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.

 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.

OPERATING INSTRUCTIONS

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 inactive 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 collapse.

 When the diaphragm pump is used in a forced-feed (flooded 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.

MAINTENANCE

Refer to the part views and descriptions as provided on pages 4 through 7 for parts identification and service kit information.

 Certain ARO “Smart Parts” are indicated which should be available for fast repair and reduction of down time.

 Service kits are divided 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 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.

FLUID SECTION DISASSEMBLY

1. Remove top manifold(s).

2. Remove (22) balls, (19) “O” rings and (21) seats.

3. Remove (15) fluid caps.

NOTE: Only diaphragm models use a primary diaphragm (7) and a backup diaphragm (8). Refer to the auxiliary view in the Fluid Section illustration.

4. Remove the (14) screws, (6) washers, (7) or (7 / 8) diaphragms and (5) washers.

5. Remove (3) “O” rings.

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

FLUID SECTION REASSEMBLY

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 grease.

 Use ARO pn / 98930-T bullet (installation tool) to aid in installation of (2) “O” ring on (1) diaphragm rod.

 Be certain (7) or (7 / 8) diaphragm(s) align properly with (15) fluid caps before making final torque adjustments on bolt and nuts to avoid twisting the diaphragm.

 For models with diaphragms: Item(8) Santoprene diaphragm is installed with the side marked “AIR SIDE” towards the pump center body. Install the diaphragm with the side marked “FLUID SIDE” towards the fluid cap.

 Re-check torque settings after pump has been re-started and run a while.

PARTS LIST / 66610X-X-C FLUID SECTION

$ 637119-XX-C Fluid Section Service Kits include: Balls (see BALL Option, refer to -XX in chart below), Diaphragms (see DIAPHRAGM Option, refer to-XX in chart below), plus items: 2, 3, 19 and 93706-1 Key-Lube grease.

MATERIAL CODE

[A] = Aluminum

[B] = Nitrile

[C] = Carbon Steel [CI] = Cast Iron [Co] = Copper

[D] = Acetal

[E] = E.P.R.

[H] = Hytrel

[K] = Kynar PVDF

[N] = Neoprene

[P] = Polypropylene [SP] = Santoprene

[SH] = Hard Stainless Steel [SS] = Stainless Steel

[T] = PTFE

[U] = Polyurethane

[V] = Viton

TROUBLE SHOOTING

Product discharged from exhaust outlet.

 Check for diaphragm rupture.

 Check tightness of (14) diaphragm screw.

Air bubbles in product discharge.

 Check connections of suction plumbing.

 Check “O” rings between intake manifold and fluid caps.

 Check tightness of (14) diaphragm screw.

Low output volume, erratic flow, or no flow.

 Check air supply.

 Check for plugged outlet hose.

 Check for kinked (restrictive) outlet material hose.

 Check for kinked (restrictive) or collapsed inlet material hose.

 Check for pump cavitation -- suction pipe should be sized at least as

large as the inlet thread diameter of the pump for proper flow if high

viscosity fluids are being pumped. Suction hose must be a non-collapsing type, capable of pulling a high vacuum.

 Check all joints on the inlet manifolds and suction connections.

These must be air tight.

 Inspect the pump for solid objects lodged in the diaphragm chamber

or the seat area.