650453-X
OPERATOR’S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
ALSO INCLUDE MANUALS: 6544X-X (PN 97999-64) AIR MOTOR & S-632 GENERAL INFORMATION
MANUAL (PN 97999-624)
RELEASED: 10-24-92
REVISED:
(REV. G)
1-6-03
4-1/4” AIR MOTOR
650453-X
9:1 RATIO
2-BALL BASIC PUMP
4” STROKE
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
PUMP DATA
• Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
MODELS 650453-X
• 61268 for repair of air motor section.
Air Inlet (female)
1/2 - 14 N.P.T.F. - 1
• 637177 for repair of lower pump end of models 650453-5 and
650453-11.
• Order lower pump end service parts separately for models
650453-7, 650453-8, 650453-9 and 650453-10.
65445-B Air Motor
(see 6544X-X manual)
GENERAL DESCRIPTION
• The ARO 9:1 ratio basic pump assembly consistsof a4-1/4” air mo-
tor, spacer section and two-ball lower pump end. The 4-1/4” air mo-
tor is a reciprocating type with pneumatic control circuit and
reversing valve. No working springs or piston connected trip rods
are used to reverse the air motor piston.
“A”
Material Outlet (female)
3/4 - 14 N.P.T.F. - 1
SPACER SECTION
• Theairmotorisconnectedtothelowerpumpendwithaspacertube
and solvent cup. This allows for lubrication of the upper packing
gland and to prevent air motor contamination because of normal
wear and eventual leakage through the material packing gland.
LOWER PUMP END
• Thetwo-balldesignprovidesforeasyprimingofthelowerfootvalve
and the double acting feature is standard in all ARO industrial
pumps. Material is delivered to the pump discharge outlet on both
the up and down stroke.
RATIOXREGULATEDAIRPRESSURETOAIRMOTOR=MAXIMUM
FLUID PRESSURE.
“B”
• The9:1ratioisonexpressionoftherelationshipbetweentheairmo-
torareaandthelowerpump endarea. When150 p.s.i. (10.3bar)air
pressure is supplied to the air motor, the lower pump end will devel-
opamaximumof1,350p.s.i.(93.1bar)fluidpressure(atnoflow).As
thefluidcontrolisopened, theflowratewillincreaseastheairmotor
cycle rate increases to keep up with the demand.
FIGURE 1
“C”
OPERATING PRECAUTIONS
• DO NOT exceed maximum working pressure of 1,350 p.s.i. (93.1
bar) at 150 p.s.i. (10.3 bar) air inlet pressure. HEED ALL WARN-
INGS.
NOTE: Dimensionsareshownininchesand(mm),suppliedforreferenceonlyandare
typically rounded up to the nearest 1/16 inch.
• WARNING: HIGH PRESSURE DEVICE. Improper usage of
this equipment could result in serious injury. The possibility of injec-
tion into the flesh is a potential hazard. Never allow any part of the
human body to come in front of or in direct contact with the material
outlet. An injection injury can be serious. If injection should occur,
contact a qualified physician immediately for treatment.
• COMPONENT RUPTURE. This pump is capable of producing high
material pressure as stated on pump model plate.
Model
Packing
Material
Pump
Type
“A”
“B”
“C”
Number
650453-5 PTFE
55 gal
59-1/4”
37-1/8” Immersed
650453-7 PTFE/Leather
650453-8 UHMW-PE
650453-9 UH / Leather
650453-10 UHMW-PE
650453-11 PTFE
Stub 32-11/16” 10-9/16” 1-1/2” NPT
55 gal 59-1/4” 37-1/8” Immersed
Stub 32-11/16” 10-9/16” 1-1/2” NPT
Stub 32-11/16” 10-9/16” 1-1/2” NPT
Stub 32-11/16” 10-9/16” 1-1/2” NPT
• Be sure materialhosesand othercomponentsareabletowithstand
fluid pressures developed by this pump.
INGERSOLL RAND COMPANY
209 NORTH MAIN STREET -- BRYAN, OHIO 43506
CCN 81496986
E2010
(800) 495--0276 D FAX (800) 892--6276
PARTS LIST / LOWER PUMP END
Item Description (Size in inches)
Qty Part No.
(1) 90584
(1) 90571
(1) 90582
(1) Y325-32
(1) 91182
(1) 77432
(1) 77327
(3) 90578-2
(3) 90578-1
(3) 90578-4
Mtl
[C]
[C]
[C]
[B]
[C]
[SS]
[D]
[GFT]
[L]
[UH]
FIGURE 3
MATERIAL CODE
[B] = Nitrile
[Br] = Brass
[C] = Carbon Steel
[Co] = Copper
[D] = Acetal
[GFT] = Glass Filled PTFE
[L] = Leather
1
2
3
Piston Rod
Lock Nut
Spacer Tube
1
H 4 ‘‘O” Ring (1/16” x 2” o.d.)
5
6
Solvent Cup
Washer
[SS] = Stainless Steel
[T] = PTFE
[UH] = UHMW-PE
2
3
H 7 Female Packing Washer
H 8 ‘‘V” Packing (650453-5, -11)
(650453-7, -9)
(650453-8, -10)
H 9 ‘‘V” Packing (650453-5, -7, -11)
(650453-8, -9, -10)
(3) 90578-2
(3) 90578-4
(1) 91349
(1) 90120
(1) 90125
(1) 90579
(1) 90642
(1) 76507
(1) Y11-108-N
(1) 75678
(1) 73919
(1) 92867-1
(1) 94516
(1) Y16-232
(1) 75681
(1) 90125
(1) 90641
(1) 91116
(1) Y325-223
(1) Y16-238
(1) 90438
(1) 90119
[GFT]
[UH]
[D]
[C]
[Co]
[C]
[C]
[C]
[C]
[C]
[T]
[UH]
[C]
[C]
[C]
[Co]
[C]
[C]
[B]
[C]
H 10 Male Packing Washer
H 11 Spring
H 12 Washer
13 Pump Body
14 Piston Rod (650453-5, -8)
(650453-7, -9, -10, -11)
4
5
6
7
15 Nut (1/2” - 20)
16 Cup Follower
H 17 Cup (650453-5, -7, -11)
(650453-8, -9, -10)
8
9
10
18 Washer
19 Ball (1” o.d.)
20 Inner Check Seat
H 21 Washer
22 Suction Tube (650453-5, -8)
(650453-7, -9, -10, -11)
11
12
13 ,
¡
14
H 23 ‘‘O” Ring (1/8” x 1-7/8” o.d.)
24 Ball (1-3/16” o.d.)
25 Ball Stop Pin (3/16” o.d. x 1-13/16”)
26 Foot Valve Seat (650453-5, -8)
LUBRICATION / SEALANTS
15 ,
¡ Apply Loctite 242 to threads
[SS]
[C]
at assembly.
16
27 Foot Valve Seat (650453-7, -9, -10, -11) (1) 77006
[C]
[C]
[C]
17
19
28 Bung Adapter (includes item 29)
29 Thumb Screw (1/4” - 20 x 1-1/2”)
(1) 60870
(1) Y197-158-C
637177
18
H
Service Kit
20 ,
21
LOWER PUMP END TO AIR MOTOR SEAL DETAIL
E
A
B
E
F
22 ,
28
29
C
D
G
23
24
FIGURE 4
A
Wavy Spring Washer
(1) 90251
[C]
[L]
[T]
. 26
25
H B Packing
H C Packing (650453-5, -8, -10, -11)
(650453-7, -9)
(3) 90567
(1) 90643
(1) 90567
(1) 90570
(2) 90568
(1) 90572
(1) Y145-2
27 ,
. TORQUE REQUIREMENTS ,
[L]
NOTE: DO NOT OVERTIGHTEN COMPONENTS
(13) pump body, (22) suction tube & (26 or 27) foot
valve seat 125 - 150 ft lbs (169.5 - 203.4 Nm).
(15) nut 50 ft lbs (67.8 Nm).
D
E
F
Spacer
Washer
Connector Pin
[C]
[Br]
[C]
[C]
(20) inner check seat 65 - 70 ft lbs (88.1 - 94.9 Nm).
H G Retaining Ring
Page 3 of 4
650453-X
SPECIAL INSTRUCTIONS
TROUBLE SHOOTING
_ Use flats on pump body for holding in vice to remove tubes.
_ Be careful not to deform suction tube while removing.
_ Do not mar finish on plunger.
PROBLEM
• Air leakage out of slots in (3) spacer tube.
CAUSE
• Worn lower air motor packings.
NOTE: All threads are right hand.
1. Loosen (2) nut and use strap wrench or pipe wrench to unscrew (3)
spacer tube from air motor base.
REMEDY
• Replace packings (see figure 4).
2. Pull lower pump end from air motor until (F) pin is exposed.
3. Use retaining ring pliers and remove (G) retaining ring from (F) pin.
Remove (F) pin.
PROBLEM
• No material (stalled pump).
CAUSE
4. Pull lower pump end from air motor.
5. Pump reassembly is done in reverse order.
• Obstructed material line.
REMEDY
• Remove obstruction.
THEORY OF OPERATION
PROBLEM
• No material (pump continually cycles).
CAUSE
• Empty material supply.
REMEDY
• Disconnect the air. Replenish material supply. Connect the air.
CAUSE
• Pin (F) disassembled from air motor piston rod.
REMEDY
• Reconnect air motor piston rod to (1) pump rod with (F) pin. Secure
(F) pin with (G) retaining ring.
PROBLEM
• Material on one stroke only (fast downstroke).
CAUSE
• (24) ball in (26 or 27) seat is not seating.
REMEDY
• Remove the foot valve. Clean and inspect ball and foot valve. If ei-
ther ball or foot valve is damaged, replace.
PROBLEM
• Material on one stroke only (fast upstroke).
CAUSE
• Worn (17) cup.
UPSTROKE
AIR MOTOR:
REMEDY
• Replace with new (17) cup.
• Compressed air below air motor piston forces it up.
• Air above piston is exhausted.
LOWER PUMP END:
PROBLEM
• Material leakage out slots in (3) spacer tube.
CAUSE
• Plunger moves upward in the suction tube.
• Upper ball is seated and material above piston ball cage (black ar-
rows) fills the cavity left by the plunger and the excess is forced
through material outlet.
• Worn (8 or 9) packings.
REMEDY
• As piston moves up, suction created lifts lower ball from seat and
suction tube is filled with more material (white arrows).
DOWNSTROKE
• Replace with new (8 or 9) packings.
AIR MOTOR:
• Compressed air above air motor piston forces it down.
• Air below piston is exhausted.
LOWER PUMP END:
• Pistongoesdowncausinglowerballtoseat. Materialinsuctiontube
(whitearrows)forcestheupperballfromseatandflowsthroughpis-
ton ball cage to the upper portion of the suction tube.
• Plungerenterssuctiontubecausingdisplacementofmaterial(black
arrows) through material outlet.
PN 97999-30
650453-X
Page 4 of 4
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