Page 1
OPERATOR’S MANUAL & SALES AND ENGINEERING DATA
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, TROUBLESHOOTING.
INCLUDE MANUALS: AF0442-XX Air Motor (pn 97999-1466), 1875AXXXXXX Lower Pump End (pn 97999-1582) &
S-632 General Information Manual (pn 97999-624).
4-1/4” AIR MOTOR
AF0409AX1XXXX-XX-X
9:1 RATIO
4” STROKE
TWO-BALL PUMP SERIES
Carbon Steel
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.
The original language of this manual is English.
RELEASED: 9-15-10
(REV. 01)
SERVICE KITS
Use only genuine ARO® replacement parts to assure compat-
y
ible pressure rating and longest service life.
637489 for repair of air motor section.
y
K1875AXXXXXX for repair of lower pump end.
y
Refer to the chart on page 2 for description of “XXXXXX” options.
SPECIFICATIONS
Model Series
Pump Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Two-Ball
Double Acting Pump
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9:1
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AF0422-XX
Motor Repair Kit . . . . . . . . . . . . . . . . . . . . . . . 637489
Motor Diameter . . . . . . . . . . . . . . . . . . . . . . . 4-1/4” (10.8 cm)
Stroke (double acting) . . . . . . . . . . . . . . . . . 4” (10.2 cm)
Air Inlet (female) . . . . . . . . . . . . . . . . . . . . . . . 1/2 - 14 NPTF - 1
Air Exhaust (female). . . . . . . . . . . . . . . . . . . . 1-1/4 - 11-1/2 NPTF - 1
Lower Pump End Series . . . . . . . . . . . . . . . . . . 1875AXXXXXXX
Lower Pump Repair Kit . . . . . . . . . . . . . . . . . . K1875AXXXXXXX
Material Outlet (female) . . . . . . . . . . . . . . . . . . 3/4 - 14 NPTF - 1
Air Inlet Pressure Range . . . . . . . . . . 0 - 150 p.s.i.g. (0 - 10.3 bar)
Fluid Pressure Range . . . . . . . . . . . . . 0 - 1350 p.s.i.g. (0 - 93.1 bar)
Maximum Rec'd Cycles / Minute . . . . . . . . . 75
Displacement In. Per Cycle . . . . . . . . . . . . . . 12.0
Volume / Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.65 oz. (196.8 ml)
Cycles Per Gallon . . . . . . . . . . . . . . . . . . . . . . . . 19.2
Maximum Working Flow Rate . . . . . . . . . . . . 3.9 g.p.m. (14.8 l.p.m.)
Noise Level @ 60 p.s.i. - 40 c.p.m. . . . . . . . . 89.2 db(A)
The pump sound pressure level has been updated to an Equivalent Continuous
d
Sound Level (L
using four microphone locations.
(refer to option chart)
. . . . . . . . . . . AF0409AX1XXXX-XX-X
PUMP PERFORMANCE
d
) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1
Aeq
PUMP DATA
MODEL AF0409AX1XXXX-XX-X
Air Inlet (female)
1/2 - 14 NPTF - 1
AF0442-XX Air Motor
(see manual AF0442-XX)
“A”
“B”
“C”
NOTE: Dimensions are shown in inches and (mm) and are supplied for reference only.
For more dimensions see page 3.
(mm)
“A”
"B"
(819.8)
32.277”
(for -1 model)
34.397” (873.7)
18.062"
(mm)
18.062" (458.8) 11.188" (284.2)
Material Outlet (female)
3/4 - 14 NPTF - 1
1875AXXXXXX Lower Pump
(see manual 1875AXXXXXX)
Material Inlet
"C"
(458.8)
11.188"
Figure 1
(mm)
(284.2)
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 y FAX (800) 892-6276
www.ingersollrandproducts.com
© 2010 CCN 15333818
IMPORTANT
This is one of four documents which support the pump. Replacement copies of these forms are available upon request.
AF0409AX1XXXX-XX-X
:
97999-1490)
S-632 General Information - Industrial Piston Pumps (pn
97999-624)
1875AXXXXXX Lower Pump End Operator’s Manual (pn
97999-1582)
AF0422-XX Air Motor Operator’s Manual (pn 97999-1466)
Model Operator’s Manual (pn
Page 2
MODEL DESCRIPTION CHART
Check Type / Wetted Material
A - Two Ball, Carbon Steel
Container Suitability
1 - Remote Mounting
2 - 5 gallon
5 - 55 gallon
8 - Remote Mounting w Optional Inlet
9 - 5 gallon with Optional Piston
Inlet / Outlet Tread Type
1 - SAE
Upper Packing
F - UHMW-PE
H - UHMW- PE / Leather Staggered
K - Filled PTFE
L - Leather
S - Virgin PTFE
U - Filled PTFE / Leather Staggered
Lower Packing
F - UHMW-PE
L - Leather
S - Virgin PTFE
AF0409 A X 1 X X X X- X X
Spring Type / Solvent Cup
2 - Coil Spring, Standard Solvent Cup
Plunger Type
4 - Carbon Steel, hard Chrome Plated
D - Carbon Steel, Hard Chrome PIated Alternate Piston
Air Motor Option
Blank - No Option
0 - No Option
1 - lntegrated Ball Valve Regulator
Pump Option
Blank - No Option
1 - Hex Split Bung Adapter
2 - Round Split Bung Adapter
3 - Three Screw Bung Adapter
Page 2 of 4 AF0409AX1XXXX-XX-X (en)
Page 3
GENERAL DESCRIPTION
The two-ball pump design provides for easy priming of the lower
foot valve. 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.
The motor is connected to the lower pump end by a spacer tube
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. Be
sure the solvent cup is adequately lled with lubricant to protect
the upper packings and insure longest service life.
WARNING
HAZARDOUS PRESSURE. Do not exceed maximum
operating pressure of 1350 p.s.i. (93.1 bar) at 150 p.s.i. (10.3
bar) inlet air pressure.
Pump Ratio X = Maximum Pump
Inlet Pressure to Pump Motor Fluid Pressure
Pump ratio is an expression of the relationship between the pump motor area
and the lower pump end area. EXAMPLE: When 150 p.s.i. (10.3 bar) inlet pressure
is supplied to the motor of a 4:1 ratio pump, it will develop a maximum of 600
p.s.i. (41.4 bar) uid pressure (at no ow) - as the uid control is opened, the ow
rate will increase as the motor cycle rate increases to keep up with the demand.
WARNING
Refer to general information sheet for additional
safety precautions and important information.
NOTICE: Thermal expansion can occur when the uid in the material lines is exposed to elevated temperatures. Example: Material
lines located in a non-insulated roof area can warm due to sunlight.
Install a pressure relief valve in the pumping system.
Replacement warning label (pn 92325) is available upon request.
TROUBLE SHOOTING
Pump problems can occur in either the air motor section or the
lower pump end section. Use these basic guidelines to help determine which section is affected. Be sure to eliminate any possible
non-pump problems before suspecting pump malfunction.
Pump will not cycle.
No pressure to the motor. See motor manual.
y
Restricted return lines. Clean restriction.
y
Damaged motor. Service the motor.
y
No material at the outlet (pump continually cycles).
Check the material supply, disconnect or shut o the air supply
y
and replenish the material, reconnect.
Material on one stroke only (fast downstroke).
The lower check may not be seating in the foot valve (see lower
y
pump disassembly). Remove the check from the foot valve,
clean and inspect the valve seat area. If check or foot valve are
damaged, replace.
Material on one stroke only (fast downstroke).
The middle packings may be worn (see lower pump disassem-
y
bly). Replace the seals as necessary.
Material leakage out of the solvent cup or material appears on
the pump plunger rod.
Tighten the solvent cup until the leakage discontinues. If this
y
procedure does not aid in stopping the leakage problem, the
upper packings may be worn (see lower pump disassembly).
Replace the seals as necessary.
Remove the (5) retaining ring and (6) connector pin to release
2.
the air motor piston rod from the lower pump piston rod.
Remove (4) spacer, (2) washer, four (3) packings, (2) washer and
3.
(1) wavy spring washer from the air motor cavity (see gure 2).
65968 Adapter Kit Assembly
1
2
3
4
6
5
Figure 2
PARTS LIST
Item Description
1 Wavy Spring Washer (1) 90251
2 Washer (2) 90568
3 Packing (4) 90567
4 Spacer (1) 90570
5 Retaining Ring (1) Y145-2
6 Connector Pin (1) 90572
REASSEMBLY
Assemble (1) wavy spring washer, (2) washer, four (3) packings,
1.
(2) washer and (4) spacer into cavity in the air motor.
Assemble the lower pump piston rod to the air motor piston
2.
rod, aligning the through holes.
Assemble the (6) connector pin through the hole, securing with
3.
(5) retaining ring.
Screw the lower pump assembly to the air motor.
4.
Screw the (90571) lock nut against the air motor base and
.
5
tighten.
(size)
Qty Part No.
TOP VIEW
1/2- 14 NPTF - 1
Air Inlet
C
Material outlet
47°
L
20°
PUMP CONNECTION - UPPER / LOWER
DISASSEMBLY
NOTE: All threads are right hand.
Loosen the (90571) lock nut and unscrew the entire pump from
1.
the air motor. This will expose the (6) connector pin (see gure 2).
AF0409AX1XXXX-XX-X (en) Page 3 of 4
Page 4
PERFORMANCE CURVES
CYCLE PER MINUTE
0
50
1200
120 PSI
100 PSI
Performance based on 90 wt. gear oil at ambient temperature
800
70 PSI
400
BACKPRESSURE (PSI)
40 PSI
0
0.00 2.50 5.00 7.50 10.00 12.50 15.00 17.50 20.00
U.S GALLONS PER MINUTE WATER DELIVER
100
150
40 PSI
200
250
300
100 PSI
70 PSI
350
120 PSI
400
250
200
150
100
50
0
AIR CONSUMPTION (SCFM)
0
50
1200
8.3 bar
6.8 bar
Performance based on 90 wt. gear oil at ambient temperature
800
4.8 bar
400
BACKPRESSURE (Bar)
2.7 bar
0
0.00 9.4 19.0 28.4 37.8 47.3 56.7 66.2 75.7
100
CYCLE PER MINUTE
150
200
250
2.7 bar
300
6.8 bar
4.8 bar
350
8.3 bar
400
250
200
150
100
50
0
AIR CONSUMPTION (Liters/ Sec.)
LITERS PER MINUTE WATER DELIVER
PN 97999-1492
Page 4 of 4 AF0409AX1XXXX-XX-X (en)
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