Ingersoll Rand Water Pump 666250 XXX C User Manual

OPERATOR’S MANUAL  
666250-XXX-C  
RELEASED:  
REVISED:  
(REV. 07)  
3-13-06  
5-5-10  
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE  
2" 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.  
The original language of this manual is English.  
SERVICE KITS  
Refer to Model Description Chart to match the pump material op-  
tions.  
637434 for air section repair (see page 6).  
637432-XX for fluid section repair (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 . . . . . . 6662X0-XXX-C. . . . . . . . . . . . 65.15 lbs (29.55 kgs)  
6662X1-XXX-C. . . . . . . . . . . . 129.93 lbs (58.94 kgs)  
6662X2-XXX-C. . . . . . . . . . . . 124.30 lbs (56.38 kgs)  
6662XA-XXX-C . . . . . . . . . . . 65.15 lbs (29.55 kgs)  
6662XB-XXX-C . . . . . . . . . . . 129.93 lbs (58.94 kgs)  
6662XC-XXX-C . . . . . . . . . . . 124.30 lbs (56.38 kgs)  
Maximum Air Inlet Pressure . . . . . . . . . . . 120 p.s.i.g. (8.3 bar)  
Maximum Material Inlet Pressure. . . . . . 10 p.s.i.g. (0.69 bar)  
Maximum Outlet Pressure . . . . . . . . . . . . . 120 p.s.i.g. (8.3 bar)  
Maximum Flow Rate (flooded inlet) . . . 172 g.p.m. (651.0 l.p.m.)  
Maximum Particle Size . . . . . . . . . . . . . . . . 1/4dia. (6.4 mm)  
Maximum Temperature Limits (diaphragm / ball / seal / seat  
material)  
Figure 1  
MODEL DESCRIPTION CHART  
6662 X X - X X X - C  
E.P.R. / EPDM . . . . . . . . . . . . . . . . . . . -60° to 280° F (-51° to 138° C)  
Hytrel® . . . . . . . . . . . . . . . . . . . . . . . . . -20° to 150° F (-29° to 66° C)  
Kynar® PVDF . . . . . . . . . . . . . . . . . . . 10° to 200° F (-12° to 93° C)  
Nitrile . . . . . . . . . . . . . . . . . . . . . . . . . . 10° to 180° F (-12° to 82° 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  
Center Body Material / Fluid Connection  
5
7
-
-
Aluminum / 2 - 11-1/2 NPTF - 2  
Aluminum / Rp 2 (2 - 11 BSP parallel)  
Fluid Cap & Manifold Material / Hardware  
0
1
2
-
-
-
Aluminum / Carbon steel  
Stainless Steel / Carbon Steel  
Cast Iron / Carbon Steel  
A - Aluminum / Stainless Steel  
B - Stainless Steel / Stainless Steel  
C - Cast Iron / Stainless Steel  
Noise Level @ 70 p.s.i., 60 c.p.m. . . . . . . 85.3 db(A)  
c
d
Tested with 94810 muffler assembly installed.  
c
d
Seat Material  
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.  
1
2
4
5
-
-
-
-
Aluminum  
8
9
E
-
-
-
Hard Stainless Steel  
Hytrel  
316 Stainless Steel  
Kynar PVDF  
Carbon Steel  
Santoprene  
G - Nitrile  
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.  
Ball Material  
2
4
-
-
Nitrile  
PTFE  
C - Hytrel  
E
-
Santoprene  
A - 316 Stainless Steel  
Diaphragm Material  
2
4
-
-
Nitrile  
9
-
Hytrel  
PTFE / Santoprene  
B - Santoprene  
Fluid Section Service Kit Selection  
6662XX - X X X - C  
637432 - X X  
Example: Model #666250-1EB-C  
Fluid Section Service Kit # 637432-EB  
Ball  
Diaphragm  
INGERSOLL RAND COMPANY LTD  
P.O. BOX 151 ONE ARO CENTER BRYAN, OHIO 43506-0151  
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© 2010  
CCN 15242647  
(800) 276-4658 FAX (800) 266-7016  
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GENERAL DESCRIPTION  
MAINTENANCE  
The ARO diaphragm pump offers high volume delivery even at low  
air pressure and a broad range of material compatibility options are  
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 differen-  
tial in the air chambers to alternately create suction and a positive  
fluid pressure in the fluid chambers, valve checks insure a positive  
flow of fluid.  
Pump cycling will begin as air pressure is applied and 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.  
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 avail-  
able 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 Op-  
tions.  
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Provide a clean work surface to protect sensitive internal mov-  
ing parts from contamination from dirt and foreign matter dur-  
ing service disassembly and reassembly.  
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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.  
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AIR AND LUBE REQUIREMENTS  
WARNING EXCESSIVE AIR PRESSURE. Can cause pump dam-  
age, personal injury or property damage.  
FLUID SECTION DISASSEMBLY  
A filter capable of filtering out particles larger than 50 microns  
should be used on the air supply. There is no lubrication re-  
quired 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 “Orings and seals in the air motor section of the pump.  
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1. Remove top manifold(s).  
2. Remove (22) balls, (19) “O” rings (where applicable) and (21)  
seats.  
3. Remove (15) fluid caps.  
NOTE: Only PTFE diaphragm models use a primary diaphragm (7)  
and a backup diaphragm (8). Refer to the auxiliary view in the Fluid  
Section illustration.  
OPERATING INSTRUCTIONS  
4. Remove the (14) screw, (6) washer, (7) or (7 / 8) diaphragm and  
(5) washer.  
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.  
Always flush the pump with a solvent compatible with the ma-  
terial being pumped if the material being pumped is subject to  
“setting upwhen 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 sup-  
ply, 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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FLUID SECTION REASSEMBLY  
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Reassemble in reverse order.  
Clean and inspect all parts. Replace worn or damaged parts  
with new parts as required.  
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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 installa-  
tion of (2) “Oring on (1) diaphragm rod.  
Be certain (7) or (7 / 8) diaphragms align properly with (15) fluid  
caps before making final torque adjustments on bolt and nuts  
to avoid twisting the diaphragms.  
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When the diaphragm pump is used in a forced-feed (flooded  
inlet) situation, it is recommended that a “check valve” be in-  
stalled at the air inlet.  
Secure the diaphragm pump legs to a suitable surface to insure  
against damage by vibration.  
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For models with PTFE diaphragms: Item (8) Santoprene dia-  
phragm is installed with the side marked “AIR SIDE” towards the  
pump center body. Install the PTFE diaphragm with the side  
marked “FLUID SIDEtowards the fluid cap.  
Re-check torque settings after the pump has been re-started  
and run a while.  
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Viton®and Hytrel® are registered trademarks of the DuPont Company Kynar® is a registered trademark of Arkema Inc. Loctite® is a registered trademark of Henkel Loctite Corporation  
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Santoprene® is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. ARO® is a registered trademark of Ingersoll Rand Company  
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262™, 271™ and 572™ are trademarks of Henkel Loctite Corporation  
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666250-XXX-C (en)  
Page 3 of 8  
 
PARTS LIST / 6662XX-XXX-C FLUID SECTION  
637432-XX Fluid section service kit includes: Balls (see Ball Option, refer to -XX in chart below), Diaphragms (see Diaphragm Option, refer to -XX in chart  
below) and items 2 and 19 (listed below) plus 93706-1 Key-Lube grease packet (page 6).  
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SEAT OPTIONS 6662XX-XXX-C  
BALL OPTIONS 6662XX-XXX-C  
(2-1/2” diameter)  
“22”  
“21”  
n
-XXX Seat  
Qty Mtl  
(4) [A]  
(4) [SS]  
-XXX Seat  
Qty Mtl  
(4) [SH]  
-XXX Ball  
Qty Mtl  
-XXX Ball  
Qty Mtl  
(4) [H]  
(4) [Sp]  
-1XX 95673  
-2XX 94353  
-4XX 94477-K  
-5XX 95677  
-8XX 94354  
-9XX 94328-C  
-EXX 94328-A  
-GXX 94328-G  
-X2X 93358-2  
-X4X 93358-4  
-XAX 94805  
(4)  
(4)  
[B]  
[T]  
-XCX 93358-C  
-XEX 93358-A  
(4)  
(4) [Sp]  
(4) [B]  
[H]  
(4)  
(4)  
[K]  
[C]  
(4) [SS]  
NOTE: Seat options -9XX, -EXX and -GXX do not require item 19 "O" ring.  
MATERIAL CODE  
[A] = Aluminum  
[B] = Nitrile  
[C] = Carbon steel  
[CI] = Cast Iron  
[Co] = Copper  
DIAPHRAGM OPTIONS 6662XX-XXX-C  
(1/8” x 3-5/8” o.d.)  
“19”  
Service kit  
“7”  
“8”  
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-XX = (Ball)  
[E] = E.P.R.  
[H] = Hytrel  
[K] = Kynar PVDF  
[SH] = Hard Stainless steel  
[Sp] = Santoprene  
[SS] = Stainless steel  
-XXX -XX = (Diaphragm)  
Diaphragm  
Qty  
Mtl Diaphragm  
Qty  
Mtl “O” Ring  
- - - Y325-237  
[Sp] Y328-237  
- - - Y327-237  
- - - 94356  
Qty  
(4)  
(4)  
(4)  
(4)  
Mtl  
-XX2 637432-X2  
-XX4 637432-X4  
-XX9 637432-X9  
-XXB 637432-XB  
96391-G  
96392-T  
96391-C  
96391-A  
(2)  
(2)  
(2)  
(2)  
[B] - - - - -  
[T] 96393-A  
[H] - - - - -  
[Sp] - - - - -  
- - -  
(2)  
[B]  
[T]  
[V]  
[E]  
- - -  
- - -  
[T]  
=
PTFE  
[V] = Viton  
WETTED PARTS OPTIONS 6662XX-XXX-C  
Aluminum  
666250-XXX-C 666270-XXX-C  
66625A-XXX-C 66627A-XXX-C 66625C-XXX-C  
NPTF BSP NPTF  
Qty Part No. Mtl Part No. Mtl Part No.  
Cast Iron  
Stainless Steel  
666252-XXX-C  
666272-XXX-C  
66627C-XXX-C  
666251-XXX-C  
666271-XXX-C  
66625B-XXX-C 66627B-XXX-C  
BSP  
NPTF BSP  
Mtl Part No. Mtl Part No.  
(size)  
Item Description  
Mtl Part No.  
Mtl  
[SS]  
[SS]  
[SS]  
[SS]  
(fluid side)  
6
Washer  
(2) 96503  
(2) 96377  
(1) 96376-1  
(1) 96375-1  
[A] 96503  
[A] 96377  
[A] 96376-2  
[A] 96375-2  
[A] 94357-2  
[A] 96635  
[SS] 94357-2  
[CI] 96635  
[SS] 94357-2  
[CI] 96653  
[SS] 94357-2  
[SS] 96653  
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15 Fluid Cap  
60 Inlet Manifold  
61 Outlet manifold  
[A] 96633-1  
[A] 96634-1  
[CI] 96633-2  
[CI] 96634-2  
[CI] 96651-1  
[CI] 96652-1  
[SS] 96651-2  
[SS] 96652-2  
HARDWARE OPTIONS 6662XX-XXX-C  
Carbon Steel  
Stainless Steel  
6662X0-XXX-C 6662XA-XXX-C  
6662X1-XXX-C 6662XB-XXX-C  
6662X2-XXX-C 6662XC-XXX-C  
(size)  
Item Description  
Qty Part No.  
(2) 96503  
Mtl Part No.  
[A] 94357-2  
[C] 94409-2  
[C] 94990  
Mtl  
(air side)  
5
Washer  
[SS]  
[SS]  
[SS]  
[SS]  
(M10 x 1.5 - 6g x 34 mm)  
26 Screw  
27 Screw  
(8) 94409-1  
(20) 94990-1  
(20) 94992-1  
(M10 x 1.5 - 6g x 45 mm)  
(M10 x 1.5 - 6h)  
29 Nut  
[C] 94992  
COMMON PARTS  
(size)  
(size)  
Item Description  
Qty Part No.  
(1) 96394  
Mtl  
[C]  
Item Description  
Qty Part No.  
Mtl  
(5/8” - 18 x 2-1/2”)  
1
2
9
Rod  
14 Screw  
(2) Y5-111-T [SS]  
(1) 93004 [Co]  
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(3/32” x 1” o.d.)  
(see page 7)  
“O” Ring  
(1) Y330-117 [B]  
(2) 93065 [SS]  
43 Ground Lug  
(0.630” i.d.)  
Washer  
Service Note: Part no. 98931-T installation tool is available separately for use with items 1 and 2.  
“Smart Parts, keep these items on hand in addition to the service kits for fast repair and reduction of down time.  
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Page 4 of 8  
666250-XXX-C (en)  
 
PARTS LIST / 6662XX-XXX-C FLUID SECTION  
COLOR CODE  
3
2
1
4
Diaphragm  
Color  
Ball  
Material  
Color  
5
7
8
6
Hytrel  
Nitrile  
Cream  
Black  
Tan  
Cream  
Red (•)  
Tan  
Santoprene  
9
10  
Santoprene Green*  
(backup)  
N / A  
PTFE  
White  
White  
61  
(-) Stripe  
(•) Dot  
* See item 8 in inset below.  
26 ꢂꢃ  
FOR THE AIR MO-  
TOR SECTION, SEE  
PAGES 6 & 7.  
Torque Sequence  
29  
2
1
5
7
6
9
14 ꢂꢄ  
22  
21  
19 ꢀꢁ  
27 ꢂꢃ  
15  
60  
22  
26 ꢂꢃ  
21  
19 ꢀꢁ  
PTFE 7  
Santoprene 8  
Figure 2  
(green when used  
as a backer)  
ASSEMBLY TORQUE REQUIREMENTS  
)
(
NOTE: DO NOT OVERTIGHTEN FASTENERS.  
(14) screw, 65 - 70 ft lbs (88.1 - 94.9 Nm).  
(26) screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).  
(27) screw, 30 - 40 ft lbs (40.7 - 54.2 Nm).  
LUBRICATION / SEALANTS  
Apply Key-Lube grease to all “O” rings, “U” cups and mating  
parts.  
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Air side  
Fluid side  
Apply Loctite® 271™ to threads.  
d
e
Apply anti-seize compound to threads and bolt and nut  
flange heads which contact pump case when using stain-  
less steel fasteners.  
Not used with models 6662XX-9XX-C, 6662XX-EXX-C and  
6662XX-GXX-C.  
f
View for 6662XX-XX4-C (PTFE dia-  
phragm) configuration only.  
Cross section view of diaphragms  
666250-XXX-C (en)  
Page 5 of 8  
 
PARTS LIST / 6662XX-XXX-C AIR MOTOR SECTION  
Indicates parts included in 637434 air section service kit.  
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AIR MOTOR PARTS  
(size)  
(size)  
Item Description  
101 Motor Body  
Qty Part No.  
Mtl  
[A]  
[B]  
[D]  
[C]  
[C]  
Item Description  
Qty Part No.  
(1) 96420  
(1) 96425  
(1) 93309-2  
(4) 93075  
(3) 115959  
(2) 98723-2  
(2) 94820  
(4) Y154-41  
(1) Y227-6-L  
(1) 96451  
Mtl  
[D]  
(1) 96374  
(2) Y325-24  
(1) 94528  
(2) Y145-26  
(8) 93860  
116 Spacer  
117 Gasket  
118 Pilot Rod  
119 “O” Ring  
120 Spacer  
o
p
(1/16” x 1-1/4” o.d.)  
102 “O” Ring  
103 Sleeve  
[B/Ny]  
[C]  
p
o
p
(1-5/32” i.d.)  
(1/8” x 3/4” o.d.)  
104 Retaining Ring  
[U]  
p
(1/4” - 20 x 5/8”)  
105 Screw / Lockwasher  
[Z]  
(models 6662X0-XXX-C, 6662X1-XXX-C  
121 Sleeve Bushing  
[Bz]  
[U]  
and 6662X2-XXX-C)  
(3/32” x 9/16” o.d.)  
122 “O” Ring  
p
p
(1/4” - 20 x 5/8”) (models  
6662XA-XXX-C, 6662XB-XXX-C and  
6662XC-XXX-C)  
Cap Screw  
(8) Y6-42-T  
[SS]  
(#8 - 32 x 3/8”)  
123 Screw  
[C]  
(3/4 - 14 PTF x 17/32”)  
126 Pipe Plug  
[C]  
(1/4”) (models 6662XA-  
XXX-C, 6662XB-XXX-C and 6662XC-XXX-C)  
106 Lockwasher  
(8) Y14-416-T [SS]  
(1-1/4 - 11-1/2 NPT x 1-1/2 -  
127 Pipe Fitting  
[C]  
11-1/2 NPT)  
107 Plate  
(2) 96424  
(1) 96426  
(1) 96422  
(1) Y186-55  
(1) 96421  
(5) 93251  
(5) Y325-222  
(6) Y325-134  
(4) 93250  
[SS]  
[B/Ny]  
[D]  
(with notch)  
(1/8 - 27 PTF x 1/4”)  
108 Gasket  
109 Piston  
110 “U” Cup  
111 Spool  
112 Washer  
128 Pipe Plug  
(1) Y227-2-L  
(2) 94987  
[C]  
p
o
p
o
o
p
p
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(1/4” - 20 x 1/4”)  
(1/4” - 20 x 3/8”)  
197 Button Head Screw  
198 Button Head Screw  
[SS]  
[SS]  
(3/16” x 2-1/8” o.d.)  
[B]  
(1) 94987-1  
(1) 67389  
(includes item 127)  
201 Muffler Kit  
[A]  
(2.055” o.d.)  
[GPS]  
[B]  
(1/8” x 1-3/4” o.d.)  
113 “O” Ring  
114 “O” Ring  
115 Spacer  
Key-Lube “O” Ring Lubricant  
(1) 93706-1  
(10) 637175  
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(3/32” x 2-1/16” o.d.)  
[B]  
10 Pak of Key-Lube  
[GPS]  
MATERIAL CODE  
PILOT VALVE REASSEMBLY  
[A] = Aluminum  
[B] = Nitrile  
[Bz] = Bronze  
[C] = Carbon Steel  
[D] = Acetal  
[GPS] = Glass filled Polyphenylene Sulfide  
[Ny] = Nylon  
[SS] = Stainless Steel  
[U] = Polyurethane  
[Z] = Zinc  
1. Replace two (102) “O” rings, if worn or damaged, and reinstall  
(103) sleeve.  
2. Install one of the (121) sleeve bushings, (119) “O” rings, (120)  
spacers and the remaining (121) bushing.  
3. Carefully push (118) pilot rod into bushings etc. and retain on  
each end with the two (122) “Orings. Retain with (123) screws.  
4. Replace (104) retaining rings.  
AIR MOTOR SECTION SERVICE  
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.  
GENERAL REASSEMBLY NOTES:  
Air Motor Section service is continued from Fluid Section repair.  
Inspect and replace old parts with new parts as necessary. Look  
for deep scratches on metallic surfaces, and nicks or cuts in “O”  
rings.  
Take precautions to prevent cutting “Orings upon installation.  
Lubricate “Orings with Key-Lube.  
Do not over-tighten fasteners. Refer to torque specification  
block on view.  
Re-torque fasteners following restart.  
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MAJOR VALVE DISASSEMBLY  
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1. Remove (107) plate and (108 and 117) gaskets.  
2. On the side opposite the air inlet, push on the inner diameter  
of (111) spool. This will force the (109) piston out. Continue  
pushing the (111) spool and remove. Check for scratches and  
gouges.  
3. Reach into the air section (exhaust side) and remove (116)  
spacer, (115) spacers, (113) “O” rings, (114) “O” rings, (112) wash-  
ers. etc. Check for damaged “Orings.  
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PILOT VALVE DISASSEMBLY  
MAJOR VALVE REASSEMBLY  
1. Remove (104) retaining ring.  
2. Remove (123) screws and (122) “Orings.  
3. Remove (118) piston rod, (121) sleeve bushing, (119) “O” rings  
and (120) spacers from the (101) motor body.  
4. Remove (103) sleeve and (102) “Orings.  
1. Replace (112) washer, (114)Oring and (113)Oring onto (115)  
spacer and insert etc. NOTE: Be careful to orient spacer legs  
away from blocking internal ports.  
2. Lubricate and carefully insert (111) spool.  
3. Install (117) gasket and (107) plate.  
4. Lubricate and install (110) packing cup and insert (109) piston  
into (air inlet side) cavity. The (110) packing cup lips should  
point outward.  
5. Install (108) gasket and replace (107).  
“Smart Parts, keep these items on hand in addition to the service kits for fast repair and reduction of down time.  
o
Page 6 of 8  
666250-XXX-C (en)  
 
PARTS LIST / 6662XX-XXX-C AIR MOTOR SECTION  
IMPORTANT  
111  
BE CERTAIN TO ORIENT (115)  
SPACER LEGS AWAY FROM BLOCK-  
ING INTERNAL PORTS WHEN  
REASSEMBLING AIR SECTION.  
105  
107  
106  
117  
114  
116  
115  
114  
113  
112  
MAJOR VALVE  
See cross section detail, figure 4.  
Figure 3  
101  
197  
104  
121  
197  
102  
103  
104  
126  
ꢁꢅ 123  
43  
198  
106  
107  
105  
119  
PILOT VALVE  
108  
109  
110  
121  
128  
123 ꢂꢁ  
118  
122  
120  
201  
127  
MAJOR VALVE CROSS SECTION DETAIL  
109 110  
112 114  
111 115 113  
116  
ASSEMBLY TORQUE REQUIREMENTS  
)
(
NOTE: DO NOT OVERTIGHTEN FASTENERS.  
(105) screw, 40 - 50 in. lbs (4.5 - 5.6 Nm).  
(123) screw, 20 - 25 in. lbs (2.3 - 2.8 Nm).  
LUBRICATION / SEALANTS  
Apply Key-Lube grease to all “O” rings, “U” cups and mating  
parts.  
c
Apply Loctite 271 to threads.  
Apply Loctite 262™ to threads.  
Apply Loctite 572™ to threads.  
d
f
g
Figure 4  
666250-XXX-C (en)  
Page 7 of 8  
 
TROUBLE SHOOTING  
Product discharged from exhaust outlet.  
Check for kinked (restrictive) outlet material hose.  
y
y
y
Check for diaphragm rupture.  
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  
volume.  
y
y
Check tightness of (14) diaphragm screw.  
Air bubbles in product discharge.  
Check connections of suction plumbing.  
Check “Orings between intake manifold and fluid caps.  
Check tightness of (14) diaphragm screw.  
y
y
y
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.  
y
y
Low output volume, erratic flow or no flow.  
Check air supply.  
Check for plugged outlet hose.  
y
y
DIMENSIONAL DATA  
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).  
R - Air inlet  
Q - Material outlet  
E
A
F
M
L
B
N
G
P
K
D
H
C
J
S - Exhaust port  
Q - Material inlet  
Figure 5  
DIMENSIONS  
(330.2 mm)  
(14.3 mm)  
(133.4 mm)  
P - 5-1/4”  
A - see below  
F
- 13”  
G - see below  
(230.2 mm)  
K - 9/16”  
(628.7 mm)  
B - 24-3/4”  
L
- see below  
M - see below  
(214.6 mm)  
Q - see below  
(255.6 mm)  
(47.6 mm)  
C - 10-1/16”  
H - 9-1/16”  
R - 3/4 - 14 NPTF - 2  
(255.6 mm)  
D - 1-7/8”  
J
- 10-1/16”  
N - 8-15/32”  
S
- 1-1/4 - 11-1/2 NPTF - 2  
(577.7 mm)  
- 22-3/4”  
E
Model  
“A”  
“G”  
L”  
“M”  
Model  
“Q”  
(455.1 mm)  
(669 mm)  
(667.5 mm)  
(50.8 mm)  
(227.6 mm)  
6662X0-XXX-C 17-15/16”  
26-3/8”  
2”  
8-31/32”  
666250-XXX-C 2 - 11-1/2 NPTF - 2  
(456.7 mm)  
(47.6 mm)  
(50.8 mm)  
(228.4 mm)  
6662X1-XXX-C 18”  
6662X2-XXX-C 17-15/16”  
6662XA-XXX-C 17-15/16”  
6662XB-XXX-C 18”  
6662XC-XXX-C 17-15/16”  
26-9/32”  
1-7/8”  
9”  
666270-XXX-C Rp 2 (2 - 11 BSP, parallel)  
(455.1 mm)  
(455.1 mm)  
(669 mm)  
(669 mm)  
(227.6 mm)  
(227.6 mm)  
26-3/8”  
26-3/8”  
26-9/32”  
2”  
2”  
8-31/32”  
8-31/32”  
(228.4 mm)  
(50.8 mm)  
(456.7 mm)  
(667.5 mm)  
(669 mm)  
(47.6 mm)  
(50.8 mm)  
1-7/8”  
9”  
(455.1 mm)  
(227.6 mm)  
26-3/8”  
2”  
8-31/32”  
PN 97999-1155  
Page 8 of 8  
666250-XXX-C (en)  
 

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