Ingersoll-Rand ARO 666300 C Series User manual

OPERATOR’S MANUAL 666300-XXX-C
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE RELEASED: 3-13-06
REVISED: 3-31-23
(REV: P)
3" 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 INC
209 NORTH MAIN STREET - BRYAN, OHIO 43506
[phone] FAX [phone] © 2023 CCN 15242662
arozone.com
SERVICE KITS
Refer to Model Description Chart to match the pump materi-
al options.
637434 for air section repair (see page 7).
637433-XXX for uid section repair with seats (see page 5).
637433-XX for uid section repair without seats (see page 5).
PUMP DATA
Models................. see Model Description Chart for“-XXX”
Pump Type............. Metallic Air Operated Double Diaphragm
Material................ see Model Description Chart
Weight
6663X0-XXX-C .................... 109.84 lbs (49.82 kgs)
6663X1-XXX-C .................... 222.21 lbs (100.79 kgs)
6663X2-XXX-C .................... 213.08 lbs (96.65 kgs)
6663XA-XXX-C .................... 109.84 lbs (49.82 kgs)
6663XB-XXX-C .................... 222.21 lbs (100.79 kgs)
6663XC-XXX-C .................... 213.08 lbs (96.65 kgs)
6663GE-XXX-C .................... 244.82 lbs (111.05 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) ..237 gpm (897.0 lpm)
Maximum Particle Size ...............3/8” dia. (9.5 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)
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 9 and 10
Noise Level @ 70 psig, 60 cpm

........ 86.3 dB(A)


Tested with 94810 muer assembly installed.

The pump sound pressure levels published here have been updated to
an Equivalent Continuous Sound Level (LA
eq
) 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.
THREAD MODELS
FLANGE MODELS
Figure 1

Page 2 of 12 666300-XXX-C (en)
MODEL DESCRIPTION CHART
6663 XX
CENTER BODY MATERIAL / FLUID CONNECTION
0 -
XXXC
-
Aluminum / 3 - 8 NPTF - 2
FLUID CAP AND MANIFOLD MATERIAL / HARDWARE
0 - Aluminum / Carbon steel
1 - Stainless Steel / Carbon Steel
-
2 -Cast Iron / Carbon Steel
A - Aluminum / Stainless Steel
B - Stainless Steel / Stainless Steel
C - Cast Iron / Stainless Steel
BALL MATERIAL
SEAT MATERIAL
1 - Aluminum
2 - 316 Stainless Steel
E - Stainless Steel, Raised Flange, Center Port / Stainless Steel
DIAPHRAGM MATERIAL
2 - Nitrile
2 - Nitrile
C - Hytrel
E - Santoprene
4 - PTFE / Santoprene
9 - Hytrel
B - Santoprene
4 - PTFE
6663XX-X X X C
DIAPHRAGMBALL
FLUID SECTION SERVICE KIT SELECTION
EXAMPLE: MODEL # 666300-1EB-C
Fluid Section Service Kit # 637433-EB
637433 X X - C
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.
2 - Aluminum / Rp 3 (3 - 11 BSP parallel)
G - Aluminum, FLANGE
4 - PVDF
5 -Carbon Steel
8 - Hard Stainless Steel
9 - Hytrel
E - Santoprene
G - Nitrile

666300-XXX-C (en) Page 3 of 12
OPERATING AND SAFETY PRECAUTIONS
READ, UNDERSTAND AND FOLLOW THIS INFORMATION TO AVOID INJURY AND PROPERTY DAMAGE.
EXCESSIVE AIR PRESSURE
STATIC SPARK
HAZARDOUS MATERIALS
HAZARDOUS PRESSURE
WARNING
EXCESSIVE AIR PRESSURE. Can cause person-
al injury, pump damage or property damage.
yDo not exceed the maximum inlet air pressure as stat-
ed on the pump model plate.
yBe 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 con-
dition.
WARNING
STATIC SPARK. Can cause explosion resulting
in severe injury or death. Ground pump and pumping
system.
ySparks can ignite ammable material and vapors.
yThe pumping system and object being sprayed must be
grounded when it is pumping, ushing, 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, hos-
es and any object to which material is being pumped.
yUse the pump grounding screw terminal provided. Use
ARO® part no. 66885-1 ground kit or connect a suitable
ground wire (12 ga. minimum) to a good earth ground
source.
ySecure pump, connections and all contact points to
avoid vibration and generation of contact or static spark.
yConsult local building codes and electrical codes for
specic grounding requirements.
yAfter grounding, periodically verify continuity of
electrical path to ground. Test with an ohmmeter from
each component (e.g., hoses, pump, clamps, contain-
er, spray gun, etc.) to ground to insure continuity.
Ohmmeter should show 0.1 ohms or less.
ySubmerse the outlet hose end, dispensing valve or de-
vice in the material being dispensed if possible. (Avoid
free streaming of material being dispensed.)
yUse hoses incorporating a static wire.
yUse proper ventilation.
yKeep inammables away from heat, open ames and
sparks.
yKeep containers closed when not in use.
WARNING
Pump exhaust may contain contaminants.
Can cause severe injury. Pipe exhaust away from work
area and personnel.
yIn the event of a diaphragm rupture, material can be
forced out of the air exhaust muer.
yPipe the exhaust to a safe remote location when
pumping hazardous or inammable materials.
yUse a grounded 3/4” minimum ID hose between the
pump and the muer.
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.
yDisconnect air supply line and relieve pressure from
the system by opening dispensing valve or device and
/ or carefully and slowly loosening and removing out-
let hose or piping from pump.
WARNING
HAZARDOUS MATERIALS. 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.
yObtain Material Safety Data Sheets on all materials
from the supplier for proper handling instructions.
WARNING
EXPLOSION HAZARD. Models containing
aluminum parts cannot be used with 1,1,1-trichlo-
roethane, methylene chloride or other halogenated
hydrocarbon solvents which may react and explode.
yCheck pump motor section, uid caps, manifolds and
all wetted parts to assure compatibility before using
with solvents of this type.
WARNING
MISAPPLICATION HAZARD. Do not use mod-
els containing aluminum wetted parts with food prod-
ucts for human consumption. Plated parts can contain
trace amounts of lead.
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 me-
chanical stress only. Certain chemicals will signifi-
cantly reduce maximum safe operating temperature.
Consult the chemical manufacturer for chemical com-
patibility 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, under-
stand it’s limitations, and wear safety goggles / equip-
ment when required.
CAUTION
Do not use the pump for the structural sup-
port of the piping system. Be certain the system com-
ponents are properly supported to prevent stress on
the pump parts.
ySuction and discharge connections should be flexi-
ble 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.
yDisconnect 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 (93616-1) & Diaphragm
Rupture” (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.

Page 4 of 12 666300-XXX-C (en)
yHytrel® is a registered trademark of the DuPont Company yViton® is a registered trademark of The Chemours Company y
yLoctite® is a registered trademark of Henkel Corporation ySantoprene® is a registered trademark of Celanese y
yARO® is a registered trademark of Ingersoll-Rand Company y262™, 271™ and 572™ are trademarks of Henkel Corporation y
GENERAL DESCRIPTION
The ARO diaphragm pump oers high volume delivery even
at low air pressure and a broad range of material compatibili-
ty options are available. Refer to the model and option chart.
ARO pumps feature stall resistant design, modular air motor /
uid sections.
Air operated double diaphragm pumps utilize a pressure dif-
ferential in the air chambers to alternately create suction and
a positive uid pressure in the uid chambers, valve checks
insure a positive ow of uid.
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 maxi-
mum 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.
yA 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.
yIf 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
yAlways 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.
yDisconnect the air supply from the pump if it is to be in-
active for a few hours.
yThe outlet material volume is governed not only by the air
supply, but also by the material supply available at the in-
let. The material supply tubing should not be too small or
restrictive. Be sure not to use hose which might collapse.
yWhen the diaphragm pump is used in a forced-feed
(ooded inlet) situation, it is recommended that a “check
valve”be installed at the air inlet.
ySecure 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 pag es
5 through 8 for parts identication and service kit information.
yCertain ARO “Smart Parts” are indicated which should be
available for fast repair and reduction of down time.
yService 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 Ma-
terial Options.
yProvide a clean work surface to protect sensitive internal
moving parts from contamination from dirt and foreign
matter during service disassembly and reassembly.
yKeep good records of service activity and include the
pump in preventive maintenance program.
yBefore 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 (where applicable) and
(21) seats.
3. Remove (15) uid caps.
NOTE: Only PTFE diaphragm models use a primary dia-
phragm (7) and a backup diaphragm (8). Refer to the auxiliary
view in the Fluid Section illustration.
4. Remove the (14) screw, (6) washer, (7) or (7 / 8) dia-
phragm, (196) cushion and (5) washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm
rod.
FLUID SECTION REASSEMBLY
yReassemble in reverse order.
yClean and inspect all parts. Replace worn or damaged
parts with new parts as required.
yLubricate (1) diaphragm rod and (2) “O” ring with Lubri-
plate® FML-2.
yUse ARO pn / 98931-T bullet (installation tool) to aid in
installation of (2) “O” ring on (1) diaphragm rod.
yBe certain (7) or (7 / 8) diaphragms align properly with (15)
uid caps before making nal torque adjustments on bolt
and nuts to avoid twisting the diaphragms.
yFor models with PTFE diaphragms: Item (8) Santoprene
diaphragm is installed with the side marked “AIR SIDE” to-
wards the pump center body. Install the PTFE diaphragm
with the side marked “FLUID SIDE”towards the uid cap.
yRe-check torque settings after the pump has been
re-started and run a while.

666300-XXX-C (en) Page 5 of 12
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon steel
[CI] = Cast Iron
[Co] = Copper
[E] = E.P.R.
[H] = Hytrel
[K] = PVDF
[SH] = Hard Stainless steel
[Sp] = Santoprene
[SS] = Stainless steel
[T] = PTFE
[V] = Viton
PARTS LIST / 6663XX-XXX-C FLUID SECTION
Fluid Section Service Kits (637433-XXX OR 637433-XX)
For Fluid Kits With Seats:

637433-XXX 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), and items 2, 3, 19 and 196 (listed below) plus 94276 Lubriplate® FML-2 packet
(page 7).
For Fluid Kits Without Seats:

637433-XX Fluid Section Service Kits include: Balls (see BALL Option, refer to -XX in chart below), Diaphragms (see DIAPHRAGM Option, refer to -XX in
chart and items 2, 3, 19 and 196 (listed below) plus 94276 Lubriplate® FML-2 packet (page 7).
SEAT OPTIONS 6663XX-XXX-C BALL OPTIONS 6663XX-XXX-C
“21”

“22” (3-1/4” diameter)
-XXX Seat Qty Mtl -XXX Seat Qty Mtl -XXX Ball Qty Mtl -XXX Ball Qty Mtl
-1XX 95674 (4) [A] -8XX 94114 (4) [SH] -X2X 94103-G (4) [B] -XCX 94103-C (4) [H]
-2XX 94113 (4) [SS] -9XX 94104-C (4) [H] -X4X 94103-T (4) [T] -XEX 94103-A (4) [Sp]
-4XX 94621-K (4) [K] -EXX 94104-A (4) [Sp]
-5XX 95678 (4) [C] -GXX 94104-G (4) [B]
NOTE: Seat options -9XX, -EXX and -GXX do not require item 19“O”ring.
DIAPHRAGM OPTIONS 6663XX-XXX-C

For Service Kits
With Seats

For Service Kits
Without Seats

“7”

“8”

“3” (1/8” x 1” OD)

“19” (3/16” x 5” OD)
-XXX-XXX = (Seat), -XXX = (Ball)
-XXX = (Diaphragm)
-XX = (Ball)
-XX = (Diaphragm) Diaphragm Qty Mtl Diaphragm Qty Mtl “O” Ring Qty Mtl “O” Ring Qty Mtl
-XX2 637433-XX2 637433-X2 97291-2 (2) [B] - - - - - - - - - - - Y325-210 (2) [B] Y325-350 (4) [B]
-XX4 637433-XX4 637433-X4 96476-T (2) [T] 96477-A (2) [Sp] Y328-210 (2) [T] Y328-350 (4) [T]
-XX9 637433-XX9 637433-X9 96475-C (2) [H] - - - - - - - - - - - Y327-210 (2) [V] Y327-350 (4) [V]
-XXB 637433-XXB 637433-XB 96475-A (2) [Sp] - - - - - - - - - - - Y328-210 (2) [T] 94115 (4) [E]
WETTED PARTS OPTIONS 6663XX-XXX-C
Aluminum Cast Iron Stainless Steel
666300-XXX-C
66630A-XXX-C
666320-XXX-C
66632A-XXX-C
666302-XXX-C
66630C-XXX-C
666322-XXX-C
66632C-XXX-C
666301-XXX-C
66630B-XXX-C
666321-XXX-C
66632B-XXX-C 6663GE-XXX-C
NPTF BSP NPTF BSP NPTF BSP FLANGE MODEL
Item Description (size) Qty Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl Part No. Mtl

6 Washer (uid side) (2) 94802 [A] 94802 [A] 94803 [SS] 94803 [SS] 94803 [SS] 94803 [SS] 94803 [SS]
15 Fluid Cap (2) 96430 [A] 96430 [A] 96638 [CI] 96638 [CI] 96650 [SS] 96650 [SS] 96650 [SS]
60 Inlet Manifold (1) 96429-1 [A] 96429-2 [A] 96636-1 [CI] 96636-2 [CI] 96654-1 [SS] 96654-2 [SS] 98345 [SS]
61 Outlet manifold (1) 96428-1 [A] 96428-2 [A] 96637-1 [CI] 96637-2 [CI] 96649-1 [SS] 96649-2 [SS] 98346 [SS]
HARDWARE OPTIONS 6663XX-XXX-C
Carbon Steel Stainless Steel
6663X0-XXX-C
6663X1-XXX-C
6663X2-XXX-C
6663XA-XXX-C
6663XB-XXX-C
6663XC-XXX-C
6663GE-XXX-C
Item Description (size) Qty Part No. Mtl Part No. Mtl
5 Washer (air side) (2) 94831-1 [C] 94831-2 [SS]
26 Screw (M12 x 1.75 - 6g x 45 mm) (12) 94412-1 [C] 94412-2 [SS]
27 Screw (M12 x 1.75 - 6g x 60 mm) (20) 94991-1 [C] 94991 [SS]
29 Nut (M12 x 1.75 - 6h) (20) 95053-1 [C] 95053 [SS]
COMMON PARTS
Item Description (size) Qty Part No. Mtl

1 Rod (1) 96474 [C]

2 “O” Ring (3/32” x 1” OD) (1) Y330-117 [B]
9 Washer (13/16” ID X 2” OD X 5/32”) (2) Y13-12-T [SS]
14 Screw (3/4” - 16 x 3-1/4”) (2) Y5-134-T [SS]
Item Description (size) Qty Part No. Mtl
43 Ground Lug (see page 7) (1) 93004 [Co]

196 Cushion (2) 94631 [Sp]
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.

Page 6 of 12 666300-XXX-C (en)
PARTS LIST / 6663XX-XXX-C FLUID SECTION
22
21
19

27 
1
61
26 
5
6
7 14

2  29 
196
22
21
19

15
60
26

9
3

FOR THE AIR
MOTOR SECTION,
SEE PAGES 7 & 8.
COLOR CODE
Diaphragm Ball
Material Color Color
Hytrel Cream Cream
Nitrile Black Red (•)
Santoprene Tan Tan
Santoprene Green* N / A
(backup)
PTFE White White
(-) Stripe (•) Dot
* See item 8 in inset below.
Torque Sequence
3
2
7
5
1
8
6
4
91
0





E
Air side Fluid side
Cross section view of diaphragms
61 (6663GE-XXX-C)
PTFE 7
Santoprene 8
(green when used
as a backer)
View for 6663XX-XX4-C (PTFE diaphragm)
conguration only.
XX-C and
ASSEMBLY TORQUE REQUIREMENTS
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(14) screw, 65 - 70 ft lbs (88.1 - 94.9 Nm).
(26) screw, 60 - 70 ft lbs (81.3 - 94.9 Nm).
(27) screw, 60 - 70 ft lbs (81.3 - 94.9 Nm).
LUBRICATION / SEALANTS
Apply Lubriplate® FML-2 to all “O” rings,“U” cups and mating
parts.
Apply Loctite® 271™ to threads.
Apply anti-seize compound to threads and bolt and nut
ange heads which contact pump case when using
stainless steel fasteners.
Not used with models 6663XX-
9XX-C, 6663XX-
6663XX-GXX-C.
60 (6663GE-XXX-C)
Figure 2

666300-XXX-C (en) Page 7 of 12
PARTS LIST / 6663XX-XXX-C AIR MOTOR SECTION

Indicates parts included in 637434 air section service kit.
Item Description (size) Qty Part No. Mtl
101 Motor Body (1) 96427 [A]

102 “O” Ring (1/16” x 1-1/4” OD) (2) Y325-24 [B]

103 Sleeve (1) 94528 [D]

104 Retaining Ring (1-5/32” ID) (2) Y145-26 [C]
105
Screw / Lockwasher (1/4”- 20 x 5/8”)
(models 6663X0-XXX-C, 6663X1-XXX-C and
6663X2-XXX-C)
(8) 93860 [C]
Cap Screw (1/4”- 20 x 5/8”)
(models 6663XA-XXX-C, 6663XB-XXX-C,
6663XC-XXX-C and 6663GE-XXX-C)
(8) Y6-42-T [SS]
106
Lockwasher (1/4”)
(models 6663XA-XXX-C, 6663XB-XXX-C,
6663XC-XXX-C and 6663GE-XXX-C)
(8) Y14-416-T [SS]
107 Plate (2) 96424 [SS]

108 Gasket (with notch) (1) 96426 [B/Ny]

109 Piston (1) 96422 [D]

110 “U” Cup (3/16” x 2-1/8” OD) (1) Y186-55 [B]

111 Spool (1) 96421 [A]

112 Washer (2.055” OD) (5) 93251 [Z]

113 “O” Ring (1/8” x 1-3/4” OD) (5) Y325-222 [B]

114 “O” Ring (3/32” x 2-1/16” OD) (6) Y325-134 [B]
Item Description (size) Qty Part No. Mtl

115 Spacer (4) 93250 [Z]

116 Spacer (1) 96420 [Z]

117 Gasket (1) 96425 [B/Ny]
118 Pilot Rod (1) 93309-2 [C]

119 “O” Ring (1/8” x 3/4” OD) (4) 93075 [U]
120 Spacer (3) 115959 [Z]
121 Sleeve Bushing (2) 98723-2 [Bz]

122 “O” Ring (3/32” x 9/16” OD) (2) 94820 [U]

123 Screw (#8 - 32 x 3/8”) (4) Y154-41 [C]
126 Pipe Plug (3/4 - 14 PTF x 17/32”) (1) Y227-6-L [C]
127 Pipe Fitting
(1-1/4 - 11-1/2 NPT x 1-1/2 - 11-1/2 NPT) (1) 96451 [C]
128 Pipe Plug (1/8 - 27 PTF x 1/4”) (1) Y227-2-L [C]
195A Button Head Screw (1/4”- 20 x 1/4”) (2) 94987 [SS]
195B Button Head Screw (1/4”- 20 x 3/8”) (1) 94987-1 [SS]
201 Muer Kit (includes item 127) (1) 67389

Lubriplate® FML-2 (1) 94276
Lubriplate® Grease Packets (10) (10) 637308
MATERIAL CODE
[A] = Aluminum [B] = Nitrile
[Bz] = Bronze [C] = Carbon Steel
[D] = Acetal [Ny] = Nylon
[SS] = Stainless Steel [U] = Polyurethane
[Z] = Zinc
AIR MOTOR SECTION SERVICE
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
yAir Motor Section service is continued from Fluid Section repair.
yInspect and replace old parts with new parts as necessary. Look
for deep scratches on metallic surfaces, and nicks or cuts in “O”
rings.
yTake precautions to prevent cutting “O”rings upon installation.
yLubricate“O” rings with Lubriplate® FML-2.
yDo not over-tighten fasteners. Refer to torque specication
block on view.
yRe-torque fasteners following restart.
PILOT VALVE DISASSEMBLY
1. Remove (104) retaining ring.
2. Remove (123) screws and (122) “O”rings.
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) “O” rings.
PILOT VALVE REASSEMBLY
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) “O” rings. Retain with (123) screws.
4. Replace (104) retaining rings.
MAJOR VALVE DISASSEMBLY
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) spac-
er, (115) spacers, (113) “O” rings, (114) “O” rings, (112) washers.
etc. Check for damaged “O” rings.
MAJOR VALVE REASSEMBLY
1. Replace (112) washer, (114) “O” ring and (113) “O” ring 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.

Page 8 of 12 666300-XXX-C (en)
PARTS LIST / 6663XX-XXX-C AIR MOTOR SECTION
105 
107
117
195A

102 
103 
104
121
119

123 
118 
122 
120
101
 195A
104
121
 123
43
 195B
107
 105
108
109
 110
 128
115
 114
 113
112
116
 114
111
106
126

201
127
106
IMPORTANT
BE CERTAIN TO ORIENT (115)
SPACER LEGS AWAY FROM
BLOCKING INTERNAL PORTS
WHEN REASSEMBLING AIR SECTION.
PILOT VALVE
MAJOR VALVE
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 Lubriplate® FML-2 to all “O” rings, “U” cups and mating
parts.

Apply Loctite 271 to threads.

Apply Loctite 262™ to threads.

Apply Loctite 572™ to threads.
116
110
109 112 114 111 115 113
MAJOR VALVE CROSS SECTION DETAIL
LEGS
Figure 3
Figure 4

666300-XXX-C (en) Page 9 of 12
TROUBLE SHOOTING
Product discharged from exhaust outlet.
yCheck for diaphragm rupture.
yCheck tightness of (14) diaphragm screw.
Air bubbles in product discharge.
yCheck connections of suction plumbing.
yCheck “O” rings between intake manifold and uid caps.
yCheck tightness of (14) diaphragm screw.
Low output volume, erratic ow or no ow.
yCheck air supply.
yCheck for plugged outlet hose.
yCheck for kinked (restrictive) outlet material hose.
yCheck for kinked (restrictive) or collapsed inlet material
hose.
yCheck for pump cavitation - suction pipe should be sized
at least as large as the inlet thread diameter of the pump
for proper ow if high viscosity uids are being pumped.
Suction hose must be a non-collapsing type, capable of
pulling a high volume.
yCheck all joints on the inlet manifolds and suction con-
nections. These must be air tight.
yInspect the pump for solid objects lodged in the dia-
phragm chamber or the seat area.
DIMENSIONAL DATA
Model
“G” “L”
6663X0-
XXX-C 32.28” (820 mm) 2.75” (70 mm)
6663X1-
XXX-C 32.18” (817 mm) 2.62” (67 mm)
6663X2-
XXX-C 32.28” (820 mm) 2.75” (70 mm)
Model “G” “L”
6663XA-XXX-C 32.28” (820 mm) 2.75”
(70 mm)
6663XB-XXX-C 32.18” (817 mm) 2.62”
(67 mm)
6663XC-XXX-C 32.28” (820 mm) 2.75”
(70 mm)
Model
“Q”
666300-
XXX-C 3 - 8 NPTF - 2
666320-XXX-C Rp 3 (3 - 11 BSP, parallel)
A
S
Exhaust Port
M
C
K
D
N
B
Q Material Inlet
Q
R Air Inlet
G
HJ
P
LFE
Material Outlet
A - 22.21” (564 mm)
B - 30” (762 mm)
C - 12.06” (306 mm)
D - 2.37” (60 mm)
E - 24.43” (620 mm)
F - 16” (406 mm)
G - See below
H - 10.15” (258 mm)
J - 11” (279 mm)
K - .56” (14 mm)
L - See below
M - 11.12” (282 mm)
N - 11.09” (282 mm)
P - 5.25” (133 mm)
Q - See below
R - 3/4 - 14 NPTF - 2
S - 1-1/4 - 11-1/2 NPTF - 2
66630X-XXX-C, 66632X-XXX-C
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
Figure 5

Page 10 of 12 666300-XXX-C (en)
DIMENSIONAL DATA
11.10” (281.9 mm)
Ø 16.00”
(406 mm)
35.93”
(913 mm)
9.49”
(241 mm)
.60” (15 mm)
12.06” (306 mm) 4X (.56” (14 mm) ) SLOT
4.37”
(111 mm)
22.20” (564 mm)
13.07”
(332 mm)
Ø 5.11”
(129.7 mm)
.07” (1.7 mm)
Ø 7.87”
(200 mm)
.78” (20 mm)
4.20” (107 mm)
22.20” (564 mm)
11.00” (279 mm)
Air Inlet
3/4-14 NPTF-2
Exhaust Port
1 1/4-11-1/2 NPTF-2
Material Inlet
3" Hybrid ANSI / DIN / JIS RF Flange
R .37” (9 mm) TYP
Ø 6.30” (160)
32.00”
(813 mm)
33.75”
(857 mm)
.75” (19 mm)
8 PLACES
Ø 5.90”
(150 mm)
Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
6663GE-XXX-C
Figure 6

666300-XXX-C (en) Page 11 of 12

Page 12 of 12 666300-XXX-C (en)
PN 97999-1157