66605X-X
OPERATOR’S MANUAL
RELEASED: 4-15-87
REVISED:
(REV. AR)
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
5-28-10
1/2” DIAPHRAGM PUMP
1:1 RATIO (NON-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.
637140-XX for fluid section repair (see page 4).
637141 for air section repair (see page 6).
PUMP DATA
Models . . . . . . . . . . see Model Description Chart for “-XXX”.
Pump Type . . . . . . . Non-MetallicAir Operated DoubleDiaphragm
Material . . . . . . . . . . see Model Description Chart.
Weight . . . . Polypropylene . . . . . . . . . 7.2 (3.3 kgs)
Groundable Acetal . . . . . . 8.8 (4.0 kgs)
KynarR PVDF . . . . . . . . . 9.5 (4.3 kgs)
Maximum Air Inlet Pressure . . . . . . . . . 100 p.s.i.g. (6.9 bar)
Maximum Material Inlet Pressure . . . . . 10 p.s.i.g. (0.69 bar)
66605J-XXX
66605H-XXX
66605K-XXX
666053-XXX
666056-XXX
666057-XXX
Maximum Outlet Pressure . . . . . . . . . . 100 p.s.i.g. (6.9 bar)
Air Consumption . . . . . . . . . . . . . . . . . 1 c.f.m. / gallon (approx.)
Figure 1
Maximum Flow Rate
(Ball) . . . . . . . 13 g.p.m. (49.2 l.p.m.)
(Duckbill) . . . . 10 g.p.m. (37.9 l.p.m.)
MODEL DESCRIPTION CHART
Maximum Particle Size (Ball) . . . . . . . 3/32” dia. (2.4 mm)
(Duckbill) . . . . Fibers
66605 X - X X X - 04
Maximum Temperature Limits
E.P.R. . . . . . . . . . . . . . . . . -60_ to 280_ F (-51_ to 138_ C)
Groundable Acetal . . . . . . . 10_ to 180_ F (-12_ to 82_ 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 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)
SantopreneR . . . . . . . . . . -40_ to 225_ F (-40_ to 107_ C)
PTFE . . . . . . . . . . . . . . . . 40_ to 225_ F (4_ to 107_ C)
VitonR . . . . . . . . . . . . . . . -40_ to 350_ F (-40_ to 177_ C)
Groundable . . . . . . . . . . . 666056-X and 66605H-X models only
Dimensional Data . . . . . . . . . . . . . . . . see page 8
Noise Level @ 70 p.s.i., 60 c.p.m. . . . . . 71.1 db(A)
Fluid Caps & Manifold Material
3 - Piece Manifold
3 - Polypropylene
6 - Groundable Acetal
7 - Pure Kynar
Single Piece Manifold
J - Polypropylene
H - Groundable Acetal
K - Pure Kynar
Seat Material
0 - (Duck Bill)
4 - Kynar PVDF
6 - Acetal
2 - Stainless Steel
3 - Polypropylene
Ball Material
1 - Neoprene
2 - Nitrile
( * ) Duckbill models
8 - Polyurethane
A - Stainless Steel
C - Neoprene (*)
D - Nitrile (*)
3 - Viton
4 - PTFE
5 - E.P.R.
E - Santoprene
*
The pump sound pressure levels published here have been updated to an Equivalent
Diaphragm Material
1 - Neoprene
Continuous Sound Level (L ) to meet the intent of ANSI S1.13-1971, CAGI-PNEU-
Aeq
5 - E.P.R.
ROP S5.1 using four microphone locations.
2 - Nitrile
3 - Viton
8 - Polyurethane
9 - Hytrel
NOTICE:Allpossibleoptionsareshowninthecharthowevercertaincom-
binations may not be recommended, consult a representative or the fac-
tory if you have questions concerning availability.
4 - PTFE / Santoprene
B - Santoprene
Cone Check Flow
04 - Top Discharge
FLUID SECTION SERVICE KIT SELECTION
66605X - X X X
637140 - X X
EXAMPLE: MODEL # 666053-321
Fluid Section Service Kit # 637140-21
Ball
Diaphragm
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
© 2010
(800) 495-0276 FAX(800) 892-6276
CCN 99449712
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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 available.
Refer to the model and option chart. ARO pumps feature stall resistant
design, modular air motor / fluid sections.
Refertothepartviewsanddescriptionsasprovidedonpage4through7
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
theairchamberstoalternatelycreatesuctionandpositivefluidpressure
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.
Models 666056-X and 66605H-X: The Acetal material used in these
pumpscontainsstainlesssteelfibers.It’sconductivityallowsittobecon-
nected to a suitable ground. A ground screw and ground wire kit is pro-
vided for this.
S Service kits are available to service two separate diaphragm pump
functions: 1. AIR SECTION, 2. FLUID SECTION. The Fluid Section
is divided further to match typical active MATERIAL OPTIONS.
S Provide a clean work surface to protect sensitive internal moving
partsfromcontaminationfromdirtandforeignmatter duringservice
disassembly and reassembly.
S Keep good records of service activity and include pump in preven-
tive maintenance program.
DUCKBILL CHECK VALVES (OPTIONAL)
Pumpmodelswiththesuffix(-0CXor-0DX)comeequippedwithduckbill
typechecks.Standardduckbillpumpsareshippedwiththematerialinlet
in the top and the material outlet on the bottom manifold. To change the
directionofflow, disassemblethepumpasinstructedintheFLUIDSEC-
TIONandreassembleasdescribedbelow. Apumpthatwasfactorybuilt
withballsandseatscanberetro-fittedwithduckbilltypecheckvalvesby
purchasing the necessary parts and installing them as shown.
Reassembly:
Theduckbillsmaybeinstalledineitherdirectiontoproduceflowfromtop
to bottom of the pump or from bottom to top of the pump. In either case,
all of the (42) duckbills must point in the same direction.
Flow from Top to Bottom: (see page 5)
AIR AND LUBE REQUIREMENTS
WARNING EXCESSIVE AIR PRESSURE. Can cause pump
damage, personal injury or property damage.
S Afiltercapableoffilteringoutparticleslargerthan50micronsshould
beusedontheairsupply. Thereisnolubricationrequiredotherthan
the “O” ring lubricant which is applied during assembly or repair.
S Iflubricatedairispresent,makesurethatitiscompatiblewiththe“O”
rings and seals in the air motor section of the pump.
OPERATING INSTRUCTIONS
1. With (15) fluid caps installed, stand the pump upside down.
2. Place (21) insert into (42) duckbill and slide (41) sleeve over (42)
duckbill.
S Always flush the pump with a solvent compatible with the material
beingpumpedifthematerialbeing pumpedissubjectto “settingup”
when not in use for a period of time.
S Disconnecttheairsupplyfromthepumpifitistobeinactiveforafew
hours.
S Theoutletmaterialvolumeisgovernednotonlybytheairsupplybut
alsobythematerialsupplyavailableattheinlet.Thematerialsupply
tubing should not be too small or restrictive. Be sure not to use hose
which might collapse.
S 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.
S Secure the diaphragm pump legs to a suitable surface to insure
against damage by vibration.
3. Slide the complete check assembly into the fluid cap bore with the
(21) insert end first. [Duckbills (42) point up.]
4. Position (19) “O” ring over (41) sleeve.
5. Attach (35) manifold feet / (36) swivel assembly to the fluid caps.
6. Turn pump over to right side up position.
7. Assemble duckbill check as in step #1.
8. Slide the complete check assembly into the fluid cap bore with the
(41) sleeveendfirst. [Duckbillis pointingdown towardfluid capcav-
ity.]
9. Position (19) “O” ring around (21) insert.
10. Attach (34) manifold / (36) swivel assembly to fluid cap.
Flow from Bottom to Top: (Inlet Bottom - Outlet Top)
Toreverseflowdirection, slidecheckvalveassembliesintothe(15)fluid
capsbackwardsfromwhatisindicatedinsteps#2and#7.Instep#2,the
(42) duckbills will be pointing down and in step #7, they will be pointing
up.
S VitonR and HytrelR are registered trademarks of the DuPont Company S KynarR is a registered trademark of Arkema Inc. S FluorazR is a registered trademark of Greene, Tweed & Co. Inc. S
S SantopreneR is a registered trademark of Monsanto Company, licensed to Advanced Elastomer Systems, L.P. S
66605X-X (en)
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PARTS LIST / 66605X-X FLUID SECTION
l 637140-XX Fluid Section Service Kits include: Balls (see “BALL OPTIONS”, refer to -XX in chart below), Diaphragms (see “DIAPHRAGM OPTIONS”,
refer to -XX in chart below), plus “O” ring items: 2, 19, 20, 33 and 93706-1 Key-Lube grease (page 6).
SEAT OPTIONS
ITEM “21”
BALL OPTIONS
ITEM “22” (3/4” dia.) (Service Kit -XX)
MATERIAL CODE
[B] = Nitrile
[D] = Acetal
-XXX
Seat
Qty [Mtl]
(4) [SS]
-XXX
Ball
Qty [Mtl]
-XXX
Ball
Qty [Mtl]
(4) [SS]
[E] = E.P.R.
[F] = Fluoraz
-2XX
-3XX
93409-1
93098-1
93098-10
93098-4
93098-3
93115-1
-X1X
-X2X
-X3X
-X4X
93100-1
93100-2
93100-3
93100-4
(4)
(4)
(4)
(4)
[N]
[B]
[V]
[T]
-XAX
-XEX
93410-1
93100-E
[GA] = Groundable Acetal
[GFN] =Glass Filled Nylon
[H] = Hytrel
(4)
(4)
[P]
[P]
(4)
[Sp]
-34X / -3AX
-4XX
[N] = Neoprene
[P] = Polypropylene
[PK] = Pure Kynar
[Sp] = Santoprene
[SS] = Stainless Steel
[T] = PTFE
(4) [PK]
-0XX
ITEM “42” (Duckbill)
-6XX
(4)
(4)
[D]
[P]
-X5X
-X8X
93100-5
93100-8
(4)
(4)
[E]
[U]
-0CX
-0DX
93114-1
93114-2
(4)
(4)
[N]
[B]
-0XX
[U] = Polyurethane
[V] = Viton
DIAPHRAGM OPTIONS
“7” / “8”
l Service Kits
“19”
“20”
“33” K
-XX = (Ball or Duckbill)
-XX = (Diaphragm)
“O” Ring (4)
[Mtl] 1-5/16” o.d.
“O” Ring (2)
1-1/8” o.d.
“O” Ring (4)
1-3/16” o.d.
66605X-XXX
Diaphragm (2)
[Mtl]
-XX1
-XX2
-XX3
637140-X1
637140-X2
637140-X3
93113
93465-G
93581-3
[N]
[B]
[V]
Y325-122
Y325-122
Y327-122
Y325-119
Y325-119
Y327-119
Y328-119
93933
Y325-120
Y325-120
Y327-120
94749
[B]
[B]
[V]
[T]
[F]
[T]
[E]
[U]
[B]
[E]
H
Not shown
666053-, 66605J-XX4 637140-X4
666056-, 66605H-XX4 637140-X4
666057-, 66605K-XX4 637140-X4
93111 / 93465
93111 / 93465
93111 / 93465
93760
[T/Sp] 93265
[T/Sp] 93764
[T/Sp] 93265
s Quantity = 22
95129
Y328-119
93761
94749
-XX5
-XX8
-XX9
-XXB
637140-X5
637140-X8
637140-X9
637140-XB
[E]
[U]
[H]
93763
93762
93112
93119
93117
93118
93465-9
Y325-122
Y325-119
93761
Y325-120
93762
93465
[Sp] 93763
-0X1
-0X2
-0X4
-0X8
-0XB
637140-C1, D1
637140-C2, D2
637140-C4, D4
637140-C8, D8
637140-CB, DB
93113
[N]
[B]
Y325-122
Y325-122
Not Req’d
Not Req’d
Not Req’d
Not Req’d
Not Req’d
Y325-120
Y325-120
94749
[B]
[B]
[T]
[U]
[B]
93465-G
93111 / 93465
93112
[T/Sp] Y325-122
[U] 93119
[Sp] Y325-122
93118
93465
Y325-120
K
Item “33” “O” rings are not used on models 66605H-XXX, 66605J-XXX and 66605K-XXX.
WETTED COMMON PARTS
Polypropylene
666053-XXX 66605J-XXX
Part No. Mtl
[SS] 93084 [SS] 93084
Groundable Acetal
Pure Kynar
666056-XXX
Part No. Mtl
[SS] 93084
66605H-XXX
666057-XXX
Part No. Mtl
[SS] 93084 [SS] 93084
66605K-XXX
Item Description (size)
Qty Part No.
Mtl
Part No.
Mtl
Part No.
Mtl
V 1 Rod
(1) 93084
(1) Y325-111
(2) 94645
(2) 93103-1
(2) 93105-1
(8) 93109
(2) - - - - -
[SS]
[B]
2
5
“O” Ring (3/32” x 5/8” o.d.)
Washer (2” o.d.)
[B]
Y325-111
[B]
Y325-111
[B]
Y325-111
[B]
Y325-111
[B]
Y325-111
[GFN] 94645
[GFN] 94645
[GFN] 94645
[GFN] 94645
[GFN] 94645
[PK] 93103-4
[PK] 93105-9
[SS] 93109
[GFN]
[PK]
[PK]
[SS]
- - -
V 6 Diaphragm Nut (5/16” - 18)
15 Fluid Cap (includes 26 & 124)
26 Bolt (5/16” - 18 x 1-1/2”)
29 Nut (5/16” - 18)
[P]
[P]
93103-1
93105-1
[P]
[P]
93103-3
[D]
93103-3
[D]
93103-4
93105-11
[GA] 93105-11 [GA] 93105-9
[SS] 93109
[SS] 93109
[SS] 93109
[SS] Y12-5-S
[GA] - - - - -
[GA] - - - - -
[GA] - - - - -
[SS] - - - - -
[SS] 93109
[SS] - - - - -
- - -
[P]
[P]
[P]
- - - - -
- - - - -
- - - - -
- - - - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
[P]
[P]
- - -
- - -
[P]
[P]
Y12-5-S
93102-6
93106-6
93101-6
93099
- - -
- - - - -
34 Manifold, Outlet (top)
V 35 Manifold, Foot (bottom)
V 36 Swivel
(2) 93102-1
(2) 93106-1
(2) 93101-1
(8) 93099
- - -
- - -
- - -
- - -
- - -
- - -
[D]
- - -
93102-4
93106-4
93101-4
93099
[PK] - - - - -
[PK] - - - - -
[PK] - - - - -
[SS] - - - - -
- - -
- - -
- - -
V 37 Clamp
[SS] - - - - -
- - -
38 Bolt (#10 - 24 x 1-1/2”)
39 Nut (#10 - 24)
(8) Y84-303-T [SS] - - - - -
Y84-303-T [SS] - - - - -
Y84-303-T [SS] - - - - -
- - -
(8) Y22-10-S
(4) 93097-1
(4) 93120-1
(1) - - - - -
(1) - - - - -
(1) - - - - -
(1) - - - - -
(24) 93886
(6) - - - - -
[SS] - - - - -
Y22-10-S
93097-3
- - - - -
[SS] - - - - -
Y22-10-S
93097-4
- - - - -
[SS] - - - - -
- - -
41a Ball Cage
[P]
[P]
- - -
- - -
- - -
- - -
93097-1
[D]
- - -
93097-3
- - - - -
[PK] 93097-4
[PK]
- - -
41b Sleeve (models 66605X-0XX)
43 Ground Strap
93120-1
- - - - -
- - -
- - -
- - -
- - -
- - -
- - - - -
92956-1
66885-1
- - - - -
[SS] 92956-1
[SS] - - - - -
- - - - - - - -
- - - - -
- - -
H 57 Ground Kit Assembly
60 Manifold, Inlet (bottom)
61 Manifold, Outlet (top)
62 Flange Nut (5/16” - 18)
63 Plug (1/2 - 14 N.P.T.)
- - - - -
- - -
- - -
- - -
66885-1
93802-2
93801-2
- - - - -
- - -
93802-1
93801-1
[GA] - - - - -
[GA] - - - - -
93802-3
93801-3
[PK]
[PK]
[SS]
[PK]
- - - - -
[SS] 93886
- - - 93897-1
[SS] 93886 (s)
[P] - - - - -
[SS] 93886 (s) [SS] 93886
- - - 93897-2 [D] - - - - -
[SS] 93886
- - - 93897-3
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
66605X-X (en)
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PARTS LIST / 66605X-X FLUID SECTION
COLOR CODE
Diaphragm
Color
Ball
Color
Orange
Red (S)
Blue (S)
N/A
Green (S)
Tan
White
Red
Material
61
Acetal
N/A
Red (--)
Blue (--)
Cream
Green (--)
Tan
White
Clear
Yellow (--)
(--) Stripe
Nitrile
63 ,
E.P.R.
Hytrel
OUTLET
Neoprene
Santoprene
PTFE
66605X-0XX-04
Polyurethane
Viton
Yellow (S)
(S) Dot
38
37
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
19
21
19
36
33
. 62
34
41b
42
42 k
. 39
19
41a
22
20
21
26
41b
21
OUTLET
124
15
62 ,
2
1
29 ,
5
8
43
7 Y
6 ,
26
21
41b
42
41a
22
21
19
35
k 42
36
33
41b
19
21
19
66605X-0XX-04
INLET
k
Y
When duckbills face down, the inlet is on the top.
Used on 66605X-XX4 (PTFE) models only.
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(6) Diaphragm nut, 95 - 105 in. lbs (10.7 - 11.9 Nm).
(29, 62) Fluid cap / manifold nuts, 50 -60 in. lbs (5.6 -6.8 Nm), /alternately
and evenly, then re-torque after initial run-in.
(39) Nuts, 20 - 25 in. lbs (2.3 - 2.8 Nm) then re-torque.
(63) Plugs, 25 in. lbs (2.8 Nm) maximum.
60
63 ,
LUBRICATION / SEALANTS
Apply Key-Lube (93706-1) to all “O” rings, “U” cups and mating parts.
Figure 2
66605X-X (en)
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PARTS LIST / 66605X-X AIR MOTOR SECTION
n Indicates parts included in 637141 Air Section Repair Kit.
AIR SECTION PARTS
Item Description (size)
101 Motor Body
Qty Part No.
(1) 93091
(2) Y325-117
(1) 93087
(2) 37285
(1) 93085
(1) 93088
(4) 93075
(3) 115959
(2) 77802
(8) 93249
(1) 66972
93092
[Mtl]
Item Description (size)
Qty Part No.
(4) 93096
(4) Y6-419-T
(1) 93090
(1) 93086
(1) Y325-125
(1) 94395
(1) 96383
(1) 93276
(1) 93275
(2) 116038
(2) 93089
93110
[Mtl]
[SS]
[SS]
[P]
[P]
133 Washer (9/32” i.d.)
134 Bolt (1/4” - 20 x 5”)
135 Valve Block
n 102 “O” Ring (3/32” x 1” o.d.)
j 103 Sleeve
[B]
[Bz]
[C]
j 104 Snap Ring (13/16”)
111 Spool
136 Plug
[D]
[D]
n 137 “O” Ring (3/32” x 1-1/2” o.d.)
n 138 Packing, “U” Cup (1/8” x 1” o.d.)
n 139 Packing, “U” Cup (1/8” x 1.427” o.d.)
n 140 Valve Insert
[B]
118 Pilot Rod
[C]
[U]
n 119 “O” Ring (1/8” x 3/4” o.d.)
j 120 Spacer
[U]
[B]
[Z]
[CK]
[CK]
[Z]
n 122 Snap Ring (1/2”)
124 Stud (5/16” - 18 x 1-17/32”) (see page 5)
129 Muffler Assembly
129l Exhaust Cover (see note 2)
n 130 Gasket
[C]
n 141 Valve Plate
[SS]
[P]
142 Washer
143 Plate
[SS]
[C]
[PS]
[SY]
[SS]
[B]
201 Muffler (see note 2)
(1) 93107
(8) 93095
(1) 93339-1
131 Bolt (5/16” - 18 x 1-1/4”)
n 132 Gasket (see note 1)
n
Key-Lube “O” Ring Lubricant
10 Pack of Key-Lube
93706-1
637175
Note1:Partno.93339-1one-piecegasketreplacesthefollowingparts(notshown)inmod-
els manufactured prior to October 1988, Y325-10 (4), Y325-12, 93093, 93094,
Y325-8.
Note 2: The (129l) exhaust cover and (201) muffler were standard until 9/92. They are
available separately for service or piped exhaust applications.
Note 3: A major valve service assembly is available separately which includes items: 111,
132, 135 - 141. Order part no. 66362.
DIAPHRAGM PUMP SERVICE
GENERAL SERVICE NOTES:
S Inspect and replace old parts with new parts as necessary. Look for
deep scratches on metallic surfaces, and nicks or cuts in “O” rings.
S 7/16” wrench, 1/2” wrench, 7/16” socket, 1/2” socket, torque
wrench (measuring inch pounds), “O” ring pick.
MATERIAL CODE
[B] = Nitrile
[D] = Acetal
[SY] = Syn-Seal
[U] = Polyurethane
[Z] = Zinc
[Bz] = Bronze
[P] = Polypropylene
[PS] = Polyester
[SS] = Stainless Steel
FLUID SECTION DISASSEMBLY
[C] = Carbon Steel
[CK] = Ceramic
1. Remove (34) top manifold / (36) swivel assembly.
Note: Manifold options involve single piece manifolds (60 / 61) or three
piece swivel type manifolds with clamps.
2. Remove (41) ball cages, (22) balls, (19 and 20) “O” rings and (21)
seats. Note: If cages are difficult to remove at this step, it may be
helpful to proceed through step 5 and remove them once they are
accessible from the inside of the fluid cap.
3. Remove (35) bottom manifolds / (36) swivel assembly.
4. Remove (19) “O” rings, (21) seats and (22) balls.
5. Remove (15) fluid caps.
6. Remove (6) diaphragm nut, (8) [(7) PTFE models only] dia-
phragm(s) and (5) diaphragm washer from (1) diaphragm connect-
ing rod.
FLUID SECTION REASSEMBLY
S Reassemble in reverse order.
S Lubricate(1)connectingrodand(2)“O”ringwithKey-Lubeorequiv-
alent “O” ring lubricant.
S Install (5) diaphragm washers with i.d. chamfer toward diaphragm.
S WhenreplacingPTFEdiaphragms,installthe93465Santoprenedi-
aphragm behind the PTFE diaphragm.
S When installing (41) cage, ball guides must line up with notches in
(21) seat to prevent damage.
S Beforeinstalling(35),(34)manifolds,(19)“O”ringshouldbeproper-
ly seated on the o.d. of (41) ball cage.
S Before tightening (39) nut and (38) carriage bolts on (36) swivels,
attach the manifold / swivel assembly to the fluid caps. Rotate (36)
swiveltodesiredpositionandtighteneachofthenutsapproximately
8 - 9 turns, then finish tightening (29) nuts.
7. Remove (1) connecting rod from air motor.
8. Carefully remove remaining (6) diaphragm nut, (8) [(7) PTFE mod-
els] diaphragm and (5) diaphragm washer from (1) connecting rod.
Do not mar surface of connecting rod.
9. Remove (2) “O” ring from connecting rod.
10. Remove (37) clamps from top and bottom manifold / swivel assem-
blies.
11. Remove (33) “O” rings from (36) swivels.
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
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PARTS LIST / 66605X-X AIR MOTOR SECTION
. TORQUE REQUIREMENTS ,
NOTE: DO NOT OVERTIGHTEN FASTENERS.
(134) Torque to 15 -20 in. lbs (1.7 -2.3 Nm), wait 10 minutes, then re-torque
to 15 - 20 in. lbs (1.7 - 2.3 Nm).
(OPTION) 129
(see note 2, page 6)
LUBRICATION / SEALANTS
Apply Key-Lube (93706-1) to all “O” rings, “U” cups and mating parts.
201 (OPTION)
(seenote2,page6)
131
101
103
102
133
140
141
132
MAJOR VALVE
(see note 3, page 6)
130
129
135
143 104
PILOT VALVE
138
. 134
118
142
139
137
111
119
120
119
120 119
120
136
119
Figure 3
142
122
AIR MOTOR SECTION SERVICE
MAJOR VALVE DISASSEMBLY
Service is divided into two parts - 1. Pilot Valve, 2. Major Valve.
1. Remove (129) exhaust cover and (130) gasket.
2. Pull (135) valve block assembly from (101) body.
3. Remove (134) bolts, (133) washers and (132) gasket from (135)
valve block.
4. Remove (141) valve plate and (140) valve insert.
5. Remove (136) plug and (111) spool.
S Air Motor Section Service is continued from Fluid Section repair.
PILOT VALVE DISASSEMBLY
1. Remove (122) and (104) snap rings.
2. Remove (143) plates.
3. Remove (103) sleeve and (102) “O” rings.
4. Remove (118) piston, (142) washers, (119) “O” rings and (120)
spacers from (101) center body.
MAJOR VALVE REASSEMBLY
1. Install new (139) and (138) “U” cups on (111) spool -- LIPS MUST
FACE EACH OTHER.
2. Insert (111) spool into (135) valve block.
3. Install(137)“O”ringon(136)plug, insertpluginto(135)valveblock.
4. Install(140)valveinsertand(141)valveplateinto(135)valveblock.
Note: After 9/92, parts (140, 141) are white (ceramic), the dished
side of the (140) valve insert should be against the shiny face of
(141) valve plate for best performance.
5. Replace (132) gasket and install valve block assembly on (101)
body.
PILOT VALVE REASSEMBLY
1. Assemble(119)“O”rings,(120)spacersand(142)washerson(118)
pilot rod.
2. Insertthestackintothe(101)body. Sleeve(103)maybeusedtoas-
sist pressing stack into body.
3. Install (103) sleeve and (102) “O” rings into (101) body.
4. Install (143) plates and (122) and (104) snap rings.
66605X-X (en)
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TROUBLE SHOOTING
Product discharged from air exhaust.
S Check for diaphragm rupture.
S Check tightness of (6) diaphragm nut.
Low output volume.
S Check air supply.
S Check for plugged outlet hose.
S For the pump to prime itself, it must be mounted in the vertical posi-
tion so that the balls will check by gravity.
S Checkforpumpcavitation -- suctionpipeshouldbe1/2”min. orlarg-
er if high viscosity fluids are being pumped. Suction hose must be
non-collapsible type, capable of pulling a high vacuum.
S Checkalljointsonintakemanifoldsandsuctionconnections. These
must be airtight.
S Check for sticking or improperly seating check valves.
S If pump cycles at a high rate or runs erratically, check (119) piston
“O” rings for wear.
Air Bubbles in Product Discharge.
S Check connections of suction plumbing.
S Check band clamps on intake manifold.
S Check “O” rings between intake manifold and fluid caps.
S Check tightness of (6) diaphragm nut.
Pump blows air out main exhaust when stalled on either stroke.
S Check “U” cups on (111) spool in major valve.
S Check (141) valve plate and (140) insert for wear.
S Check (103) sleeve and (2) “O” ring on diaphragm connecting rod.
S Check (119) “O” rings on (118) piston for wear.
DIMENSIONAL DATA
Dimensions shown are for reference only, they are shown in inches and millimeters (mm).
6-7/16”
5-3/16”
(164 mm)
(132 mm)
6”
8-5/32”
(152 mm)
(207 mm)
1/2 - 14 N.P.T.
Material Outlet
1/2 - 14 N.P.T.
10-1/16”
Air Inlet
1/4 - 18 N.P.T.
(255 mm)
11-11/32”
Material Inlet
1/2 - 14 N.P.T.
(288 mm)
2-1/32”
(51 mm)
NOTE: LOOSENING THESE
FASTENERS WILL ALLOW
INLET / OUTLET TO ROTATE.
5/16” Slot (8 mm)
4-13/16”
(122 mm)
6-5/32” (156 mm)
5-1/2”
8-15/32” (215 mm)
(140 mm)
Single Piece Manifold
Figure 4
PN 97999-99
66605X-X (en)
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