Ingersoll-Rand ARO 66625 C Series Operator'S Manual Download Page 8

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66625X-XXX-C (en)

PN 97999-1155

TROUBLESHOOTING

Product discharged from exhaust outlet.

y

Check for diaphragm rupture.

y

Check tightness of (14) diaphragm screw.

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 (14) diaphragm screw.

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.

y

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

Check all joints on the inlet manifolds and suction connections. 

These must be air tight.

y

Inspect the pump for solid objects lodged in the diaphragm

chamber or the seat area.

DIMENSIONAL DATA

A

E

G

M

L

F

N

B

H

J

D

K

C

P

S - 

Exhaust port

Q - 

Material inlet

Q - 

Material outlet

R - 

Air inlet

Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).

Figure 5

DIMENSIONS

A  -  see below

B  -  24-3/4” 

(628.7 mm)

C  -  10-1/16” 

(255.6 mm)

D  -  1-7/8” 

(47.6 mm)

E  -  22-3/4” 

(577.7 mm)

F  -  13” 

(330.2 mm)

G  -  see below

H  -  9-1/16” 

(230.2 mm)

J  -  10-1/16” 

(255.6 mm)

K  -  9/16” 

(14.3 mm)

L  -  see below

M -  see below

N  -  8-15/32” 

(214.6 mm)

Model 

“Q”

666250-XXX-C  2 - 11-1/2 NPTF - 2

666270-XXX-C  Rp 2 (2 - 11 BSP, parallel)

P  -  5-1/4” 

(133.4 mm)

Q  -  see below

R  -  3/4 - 14 NPTF - 2

S  -  1-1/4 - 11-1/2 NPTF - 2

Model 

“A” 

“G” 

“L” 

“M”

6662X0-XXX-C  17-15/16” 

(455.1 mm)

 

26-3/8” 

(669 mm)

 

2” 

(50.8 mm)

 8-31/32” 

(227.6 mm)

6662X1-XXX-C  17-29/32” 

(454.6 mm)

1-7/8” 

(47.6 mm)

6662X2-XXX-C  17-15/16” 

(455.1 mm)

 

26-3/8” 

(669 mm)

 

2” 

(50.8 mm)

8-31/32” 

(227.6 mm)

6662XA-XXX-C  17-15/16” 

(455.1 mm)

 

26-3/8” 

(669 mm)

 

2” 

(50.8 mm)

8-31/32” 

(227.6 mm)

6662XB-XXX-C  17-29/32” 

(454.6 mm)

 

26-1/4” 

(666.75 mm)

 

26-1/4” 

(666.75 mm)

1-7/8” 

(47.6 mm)

6662XC-XXX-C  17-15/16” 

(455.1 mm)

 

26-3/8” 

(669 mm)

 

2” 

(50.8 mm)

8-31/32” 

(227.6 mm)

8-15/16” (227.3 mm)

8-15/16” (227.3 mm)

Summary of Contents for ARO 66625 C Series

Page 1: ...4 dia 6 4 mm Maximum Temperature Limits diaphragm ball seal seat material E P R EPDM 60 to 280 F 51 to 138 C Hytrel 20 to 180 F 29 to 82 C Kynar PVDF 10 to 200 F 12 to 93 C Nitrile 10 to 180 F 12 to 8...

Page 2: ...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 OPERATING AND...

Page 3: ...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 re...

Page 4: ...hragm XX Ball XX Diaphragm Diaphragm Qty Mtl Diaphragm Qty Mtl O Ring Qty Mtl XX2 637432 XX2 637432 X2 97284 2 2 B Y325 237 4 B XX4 637432 XX4 637432 X4 96392 T 2 T 96393 A 2 Sp Y328 237 4 T XX6 48497...

Page 5: ...y anti seize compound to threads and bolt and nut ange 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 FORTHE AIR MO...

Page 6: ...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 ins...

Page 7: ...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 Apply Loctite 271 to thr...

Page 8: ...the pump for solid objects lodged in the diaphragm chamber or the seat area DIMENSIONAL DATA A E G M L F N B H J D K C P S Exhaust port Q Material inlet Q Material outlet R Air inlet Dimensions shown...

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