66610X-X-C
OPERATOR’S MANUAL
RELEASED: 8-24-89
REVISED:
(REV. W)
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
5-25-06
1” 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
Refer to ꢀModel Description Chart" to match the pump material options.
637118-C for air section repair (see page 6).
637119-XX-C for fluid section repair (see page 4).
SINGLE MANIFOLD
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 . . . . . . . . . . . . 19 lbs (8.62 kg)
Cast Iron . . . . . . . . . . . . . 31 lbs (14.06 kg)
DUAL MANIFOLD
Stainless Steel . . . . . . . . . 36 lbs (16.33 kg)
[add 8 lbs (3.63 kg) for cast iron air motor section]
6661XX-XXX-C
1’’ DIAPHRAGM PUMP
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)
HytrelR . . . . . . . . . . . . . . . . -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 150_ F (2_ to 66_ C)
Polyurethane . . . . . . . . . . . . 10_ to 150_ F (-12_ to 66_ C)
P.V.D.F. (KynarR) . . . . . . . . . 10_ to 200_ F (-12_ to 93_ C)
SantopreneR . . . . . . . . . . . . -40_ to 225_ F (-40_ to 107_ C)
T.F.E. (TeflonR) . . . . . . . . . . 40_ to 225_ F (4_ to 107_ C)
VitonR . . . . . . . . . . . . . . . . -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)*
Figure 1
MODEL DESCRIPTION CHART
6661 X X - X X X - C
Center Body Material, Threads
0 - Aluminum, N.P.T.F.
1 - Cast Iron, N.P.T.F.
2 - Aluminum, BSP
3 - Cast Iron, BSP
Fluid Cap / Manifold Material, Inlet / Outlet
(Steel Hardware)
(Stainless Steel Hardware)
0 - Aluminum, Single A - Aluminum, Single
1 - Stainless Steel, Single B - Stainless Steel, Single
2 - Cast Iron, Single
9 - Stainless Steel, Dual
C - Cast Iron, Single
D - Stainless Steel, Dual
Seat Material
1 - Aluminum
2 - 316 Stainless Steel
3 - Polypropylene
4 - P.V.D.F. (Kynar)
5 - Carbon Steel
8 - Hard 440 Stainless Steel
Ball Material
1 - Neoprene
2 - Nitrile
3 - Viton
4 - T.F.E. (Teflon)
5 - E.P.R.
*
The pump sound pressure levels published here have been updated to an Equivalent Continuous
Sound Level (L ) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1 using four micro-
Aeq
phone locations.
6 - Acetal
8 - Polyurethane
A - Stainless Steel
C - Hytrel
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.
E - Santoprene
Diaphragm Material
1 - Neoprene 3 - Viton
2 - Nitrile 5 - E.P.R.
4 - T.F.E. (Teflon) / Santoprene
9 - Hytrel
B - Santoprene
FLUID SECTION SERVICE KIT SELECTION
6661XX - X X X - C
637119 - X X - C
EXAMPLE: Model # 666100-361-C
Fluid Section Service Kit # 637119-61-C
Ball
Diaphragm
INGERSOLL RAND COMPANY LTD
P.O. BOX 151 D ONE ARO CENTER D BRYAN, OHIO 43506-0151
& (800) 276-4658 D FAX (800) 266-7016
E2006
CCN 81376642
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.
Refer to the part views and descriptions as provided on pages 4 through
7 for parts identification and service kit information.
S
Certain ARO ꢀSmart Parts" are indicated which should be available
for fast repair and reduction of down time.
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 pres-
sure and will stop cycling once maximum line pressure is reached (dis-
pensing device closed) and will resume pumping as needed.
S
Service kits are divided to service two separate diaphragm pump
functions: 1. AIR SECTION, 2. FLUID SECTION. The FLUID SEC-
TION 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 preven-
tive maintenance program.
Before disassembling, empty captured material in the outlet man-
ifold by turning the pump upside down to drain material from the
pump.
S
S
S
AIR AND LUBE REQUIREMENTS
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
FLUID SECTION DISASSEMBLY
S
S
A filter capable of filtering out particles larger than 50 microns 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.
1. Remove top manifold(s).
2. Remove (22) balls, (19) ꢀO" rings and (21) seats.
3. Remove (15) fluid caps.
NOTE: Only Teflon 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) screws, (6) washers, (7) or (7 / 8) diaphragms and
(5) washers.
5. Remove (3) ꢀO" rings.
S
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.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
S
S
FLUID SECTION REASSEMBLY
S
S
Reassemble in reverse order.
Clean and inspect all parts. Replace worn or damaged parts with
new parts as required.
S
S
S
S
Lubricate (1) diaphragm rod and (2) ꢀO" ring with Key-LubeR grease.
Use ARO pn / 98930-T bullet (installation tool) to aid in installation of
(2) ꢀO" ring on (1) diaphragm rod.
Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
S
S
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 Teflon diaphragms: Item (8) Santoprene diaphragm
is installed with the side marked ꢀAIR SIDE" towards the pump cen-
ter body. Install the Teflon diaphragm with the side marked ꢀFLUID
SIDE" towards the fluid cap.
S
Re-check torque settings after pump has been re-started and run a
while.
S VitonR, TeflonR and HytrelR are trademarks of the DuPont Company, S KynarR is a trademark of Penwalt Corp. S LoctiteR is a registered trademark of Henkel Loctite Corporation S
S SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. S Key-LubeR is a registered trademark of Key Industries S
66610X-X-C
Page 3 of 8
PARTS LIST / 66610X-X-C FLUID SECTION
L 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] = P.V.D.F. (Kynar)
[N] = Neoprene
[P] = Polypropylene
[SP] = Santoprene
[SH] = Hard Stainless Steel
[SS] = Stainless Steel
[T] = Teflon
SEAT OPTIONS
6661XX-XXX-C
ꢀ21"
BALL OPTIONS 6661XX-XXX-C
L ꢀ22" (1" dia.) (Service Kit -XX)
-XXX Seat
Qty [Mtl]
(4) [A]
(4) [SS]
-XXX Ball
Qty [Mtl]
-XXX Ball
Qty [Mtl]
-1XX 92008
-2XX 90428
-3XX 92926
-4XX 92941
-5XX 95675
-8XX 93367-1
-X1X 90532-1
-X2X 90532-2
-X3X 90532-3
-X4X 90532-4
-X5X 90532-5
(4)
(4)
(4)
(4)
(4)
[N]
[B]
[V]
[T]
[E]
-X6X 90532-6
-X8X 90532-8
-XAX 90948
(4)
(4)
[D]
[U]
(4)
(4)
(4)
[P]
[K]
[C]
(4) [SS]
(4) [H]
(4) [SP]
-XCX 90532-C
-XEX 90532-A
(4) [SH]
[U] = Polyurethane
[V] = Viton
DIAPHRAGM OPTIONS 66610X-XXX-C
L SERVICE KIT
L ꢀ7"
L ꢀ8"
L ꢀ3"
L ꢀ19"
ꢀO" Ring
ꢀO" Ring
-XX = (Ball)
-XX = (Diaphragm)
-XXX
Diaphragm Qty [Mtl] Diaphragm Qty [Mtl] 1/16" x 5/8" o.d. Qty [Mtl] 3/32" x 1-9/16" o.d. Qty [Mtl]
-XX1 637119-X1-C
-XX2 637119-X2-C
-XX3 637119-X3-C
-XX4 637119-X4-C
-XX5 637119-X5-C
-XX9 637119-X9-C
-XXB 637119-XB-C
90533-1
90533-2
90533-3
93459-4
90533-5
90533-9
90533-B
(2)
(2)
(2)
(2)
(2)
(2)
[N] −−−−−
[B] −−−−−
[V] −−−−−
[T] 92973-B
[E] −−−−−
[H] −−−−−
−−− −−− Y325-14
−−− −−− Y325-14
−−− −−− Y328-14
(2) [SP] Y328-14
−−− −−− Y328-14
−−− −−− Y328-14
−−− −−− Y328-14
(4)
(4)
(4)
(4)
(4)
(4)
(4)
[B] Y325-126
[B] Y325-126
[T] Y327-126
[T] Y328-126
[T] 90534
(4)
(4)
(4)
(4)
(4)
(4)
(4)
[B]
[B]
[V]
[T]
[E]
[V]
[E]
[T] Y327-126
[T] 90534
(2) [SP] −−−−−
MANIFOLD / FLUID CAP MATERIAL OPTIONS 6661XX-XXX-C
Stainless Steel
Aluminum
Cast Iron
6661X2-X, 6661XC-X
6661X0-X, 6661XA-X
6661X1-, 1X9-, 1XB-, 1XD-
N.P.T.F.
BSP
Part No.
94945
N.P.T.F.
[Mtl] Part No.
[A] 91045
[A] 91044
−−− 92846
−−− 92847
−−− 22155
BSP
Part No.
91045
N.P.T.F.
BSP
Part No.
94277
Item Description (size)
Qty Part No.
(2) 94945
(2) 92001
(2) −−−−−
(2) −−−−−
(2) −−−−−
[Mtl] Part No.
[SS] 94277
[SS] 94278
[SS] −−−−−
[SS] −−−−−
[SS] −−−−−
[Mtl]
[CI]
[CI]
−−−
−−−
−−−
15 Fluid Cap
16 Manifold (6661X0, 1X1, 1X2, 1XA, 1XB, 1XC)
17 Outlet Manifold (6661X9-, 6661XD- only)
18 Inlet Manifold (6661X9-, 6661XD- only)
23 Spring (6661X9-, 6661XD- only)
92001-1
−−−−−
91044-1
92846-1
92847-1
22155
94278-1
−−−−−
−−−−−
−−−−−
−−−−−
−−−−−
HARDWARE OPTIONS 6661XX-XXX-C
Carbon Steel
Stainless Steel
6661X0-, 1-, 2-, 9-
6661XA-, B-, C-, D-
637167
ABRASION RESISTANT
CONVERSION KITS INCLUDE:
ꢀ21" Seat 93367-1 (4)
ꢀ22" Ball 90532-8 (4)
Item Description (size)
Qty Part No.
(2) 93441-2
(8) Y13-5-C
(8) Y6-55-C
(16) Y12-5-C
[Mtl] Part No. [Mtl]
5
Washer - Air Side (3-5/8" o.d.)
[C] 93441-1
[SS]
[SS]
[SS]
[SS]
24 Washer - models 6661X9 and 6661XD only (5/16")
26 Bolt (5/16" - 18 x 1")
[C] Y13-5-T
[C] Y6-55-T
[C] Y12-5-S
29 Nut (5/16" - 18)
COMMON PARTS
[Mtl]
Item Description (size)
V 1 Rod
Qty Part No.
Item Description (size)
Qty Part No.
(2) 93189-1
(2) Y5-85-T
(1) 93004
[Mtl]
(1) 98724-1
(1) Y330-113
(2) 93441-1
(2) 93441-2
[C]
9
Washer (0.505" i.d.)
[SS]
[SS]
[Co]
L 2 ꢀO" Ring (3/32" x 3/4" o.d.) k
V 6 Washer - Fluid Side
models 6661X0 and 6661X2 only
[B]
14 Screw (1/2" - 20 x 1")
[SS]
[C]
43 Ground Lug (see page 7)
k
Service Note: Fluid Section Service Kits also include part no. 93131 (5) ꢀO" rings for repair of ꢀ-B" (pre - 8/89) models.
Service Note: Part no. 98930-T installation tool is available separately for use with items 1 and 2.
V ꢀSmart Parts", keep these items on hand in addition to the service kits for fast repair and reduction of down time.
Page 4 of 8
66610X-X-C
PARTS LIST / 66610X-X-C FLUID SECTION
COLOR CODE
DIAPHRAGM
COLOR
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(14) Bolt, 25 - 30 ft lbs (33.9 - 40.7 Nm).
BALL
COLOR
MATERIAL
OPTIONAL
1/2 - 14 N.P.T.
91046
Acetal
Nitrile
E.P.R.
Hytrel
N/A
Orange
Red (S)
Blue (S)
Cream
Green (S)
Cream
White
26 , U
Red (−)
Blue (−)
Cream
(26) Bolts and (29) nuts, 120 - 140 in. lbs (13.6 - 15.8 Nm).
LUBRICATION / SEALANTS
Apply Loctite 271 to threads.
Neoprene
Santoprene
T.F.E. (Teflon)
Urethane
Viton
Green (−)
Cream
White
N/A
Yellow (−)
(−) Stripe
24
*
z
k
U
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 stain-
less steel fasteners.
Red
Yellow (S)
(S) Dot
17
3/4 - 14 N.P.T.
See item 8 in inset below.
6661X9-XXX-C
6661XD-XXX-C
*
d NOTE: Radius edge of parts (5 and 6) is against diaphragm.
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
26 , U
16
2 k
1’’ OUTLET
22
19 k
21
29 ,
15
Air Inlet
1
k 3 d 5
7
d 6
k 3
9
14 , z
22
21
19 k
16
AIR SIDE
1’’ INLET
3
1
26 , U
FLUID SIDE
TEFLON
(WHITE)
SANTOPRENE
(GREEN when
used as backer)
5
7
8
6
8
7
23
22
21
2
Torque Sequence
4
19 k
18
Fluid
Side
Air
Side
Air
Side
Fluid
Side
3/4 - 14 N.P.T.
24
6661X9-XXX-C
6661XD-XXX-C
26 , U
View for -X44 (Teflon diaphragm) configuration only.
Figure 2
Cross Section View of Diaphragms
66610X-X-C
Page 5 of 8
PARTS LIST / 66610X-X-C AIR MOTOR SECTION
n Indicates parts included in 637118-C Air Section Service Kit.
SERVICE KIT NOTE: Service Kit 637118-C is a general repair kit for all 1" and larger ARO diaphragm pump air motors. It contains extra
ꢀO" rings and extra parts that may not be needed to service this model.
Item Description (size)
Qty Part No.
(1) 94743
(1) 94741
(2) Y325-20
(1) 94527
(2) Y145-25
(8) 93860
(8) Y6-42-T
[Mtl]
[A]
Item Description (size)
V 116 Spacer
Qty Part No.
(1) 92006
(1) 92004
(1) 93309-1
(4) 93075
(3) 115959
(2) 98723-1
(2) 94820
(4) Y154-41
(16) 92866
[Mtl]
[Z]
101 Motor Body (models 66610X, 66612X)
(models 66611X, 66613X)
[CI]
[B]
n 117 Gasket
[B/Ny]
[C]
n 102 ꢀO" Ring (1/16" x 1" o.d.)
V 103 Sleeve
118 Pilot Rod
[D]
n 119 ꢀO" Ring (1/8" x 3/4" o.d.)
120 Spacer
[U]
n 104 Retaining Ring, TruArc (0.925" i.d.)
105 Screw/Wshr (1/4"-20 x 5/8") (-XX0, 1, 2, 9)
Cap Screw (1/4"-20 x 5/8") (-XXA, B, C, D)
106 Lockwasher (1/4") (6661XA, 1XB, 1XC, 1XD)
107 Leg (models 6661X0, 1X1, 1X2, 1X9)
(models 6661XA, 1XB, 1XC, 1XD)
[C]
[Z]
[C]
121 Sleeve Bushing
n 122 ꢀO" Ring (3/32" x 9/16" o.d.)
n 123 Screw (#8 - 32 x 3/8")
124 Stud (5/16" - 18 x 1-3/4") (6661X0, 1X1, 1X2, 1X9)
[Bz]
[U]
[SS]
(8) Y14-416-T [SS]
[C]
(2) 92003
(2) 92003-1
(1) 92878
(1) 92011
(1) Y186-51
(1) 92005
(1) 93047
(5) 92877
(5) Y325-214
(6) Y325-126
(4) 92876
[C]
[SS]
[B/Ny]
[D]
[C]
(5/16" - 18 x 1-3/4") (6661XA, 1XB, 1XC, 1XD) (16) 92866-1
[SS]
[C]
n 108 Gasket (with notch)
V 109 Piston
128 Pipe Plug (1/8 - 27 N.P.T. x 1/4")
(1) Y227-2-L
133 Lockwasher (1/4")
(1) Y14-416-T [SS]
n 110 ꢀU" Cup (3/16" x 1-3/8" o.d.)
V 111 Spool (models 66610X, 66612X)
(models 66611X, 66613X)
[B]
197 Button Head Screw (1/4" - 20 x 1/4")
198 Button Head Screw (1/4" - 20 x 3/8")
201 Muffler
(2) 94987
(1) 94987-1
(1) 93110
(1) 93706-1
637175
[SS]
[SS]
[C]
[A]
[C]
V 112 Washer (1.557" o.d.)
[Z]
n
Key-Lube ꢀO" Ring Lubricant
10 Pak of Key-Lube
n 113 ꢀO" Ring (small) (1/8" x 1-1/4" o.d.)
n 114 ꢀO" Ring (large) (3/32" x 1-9/16" o.d.)
V 115 Spacer
[B]
[B]
n
Service Kits include: Y212-101 (2) screws (#10 - 32 x 1/4") used on units mf’d be-
tween 8/90 and 4/92 to retain the pilot bushing.
[Z]
n
Parts Y145-26 (1.156" i.d.) (qty 2) retaining rings and Y325-24 ꢀO" rings
(qty 2) are included in the service kit for the repair of larger pumps.
AIR MOTOR SECTION SERVICE
MATERIAL CODE
[CI] = Cast Iron
[D] = Acetal
[Ny] = Nylon
Service is divided into two parts − 1. Pilot Valve, 2. Major Valve.
GENERAL REASSEMBLY NOTES:
[A] = Aluminum
[B] = Nitrile
[Bz] = Bronze
[U] = Polyurethane
[SS] = Stainless Steel
[Z] = Zinc
S
S
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 ꢀO" rings upon installation.
Lubricate ꢀO" rings with Key-Lube grease.
Do not over-tighten fasteners, refer to torque specification block on
view.
Re-torque fasteners following restart.
[C] = Carbon Steel
S
S
S
MAJOR VALVE DISASSEMBLY
1. Remove (107) plate (or leg depending on model), (108 and 117)
gaskets.
S
2. On the side opposite the air inlet, push on the inner diameter (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) washers, etc.
Check for damaged ꢀO" rings.
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.
MAJOR VALVE REASSEMBLY
4. Remove (103) sleeve and (102) ꢀO" rings.
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 in-
ternal ports.
2. Lubricate and carefully insert (111) spool.
3. Install (117) gasket and (107).
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).
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.
V ꢀSmart Parts", keep these items on hand in addition to the service kits for fast repair and reduction of down time.
Page 6 of 8
66610X-X-C
PARTS LIST / 66610X-X-C AIR MOTOR SECTION
IMPORTANT
BE CERTAIN TO ORIENT (115) SPACER LEGS
AWAY FROM BLOCKING INTERNAL PORTS
WHEN REASSEMBLING AIR SECTION.
117
111
115
116
105 ,
106
k 114
k 113
112
107
MAJOR VALVE
See cross section detail, figure 4.
201
g 128
Figure 3
101
z 197
104
H 123
121
124
197 z
43
133
102 k
103 k
104
z 198
106
. 105
119 k
121
107
109
123 H
118 k
122 k
110 k
108
120
PILOT VALVE
MAJOR VALVE CROSS SECTION DETAIL
114 k
109 110 k
113 k
112
115
111 k
116
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS
(105) 40 - 50 in. lbs (4.5 - 5.6 Nm).
LUBRICATION / SEALANTS
k
Apply Key-Lube grease to all ꢀO" rings, ꢀU" Cups & mating parts.
z Apply Loctite 271 to threads.
Apply Loctite 262 to threads.
g Apply Loctite 572 to threads.
Figure 4
H
66610X-X-C
Page 7 of 8
TROUBLE SHOOTING
Product discharged from exhaust outlet.
S
S
Low output volume, erratic flow, or no flow.
Check for diaphragm rupture.
Check tightness of (14) diaphragm screw.
S
S
S
S
S
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-col-
lapsing type, capable of pulling a high vacuum.
Check all joints on the inlet manifolds and suction connections.
These must be air tight.
Air bubbles in product discharge.
S
S
S
Check connections of suction plumbing.
Check ꢀO" rings between intake manifold and fluid caps.
Check tightness of (14) diaphragm screw.
S
S
Inspect the pump for solid objects lodged in the diaphragm chamber
or the seat area.
DIMENSIONAL DATA
(Dimensions shown are for reference only, they are displayed in inches and millimeters (mm).
1 - 11-1/2 N.P.T.F. - 1 (66610X, 66611X)
Rp 1 (1 - 11 BSP parallel) (66612X, 66613X)
8-9/16"
(217.5 mm)
8" (203 mm)
Outlet
12-1/2"
(318 mm)
11-9/16"
(294 mm)
Air Inlet
1/4 - 18 N.P.T.F. - 1
6-1/2"
(165 mm)
Inlet
1-1/4" (32 mm)
6-1/4" (159 mm)
7-5/16" (186 mm)
4" (102 mm)
13/32" Slot (10 mm)
1 - 11-1/2 N.P.T.F. - 1 (66610X, 66611X)
Rp 1 (1 - 11 BSP parallel) (66612X, 66613X)
Figure 5
PN 97999-100
66610X-X-C
Page 8 of 8
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