OPERATOR’S MANUAL & SALES AND ENGINEERING DATA
RELEASED:
(REV. 01)
2-10-10
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, TROUBLESHOOTING.
INCLUDE MANUALS: AF1260-XX Air Motor (pn 97999-1474), 67300-XXX Lower Pump End (pn 97999-961) &
S-632 General Information Manual (pn 97999-624).
12” AIR MOTOR
AF1265SXXXXXX-XX-X
65:1 RATIO
EXTRUSION PUMP SERIES
6” STROKE
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.
SERVICE KITS
PUMP DATA
Use only genuine ARO® replacement parts to assure compat-
ible pressure rating and longest service life.
MODEL AF1265SXXXXXX-XX-X
637489 for repair of air motor section.
637348-XXD for repair of lower pump end. Refer to the chart
on page 2 for description of -XXX options.
Air Inlet (female)
3/4 - 14 N.P.T.F. - 1
SPECIFICATIONS
AF1260-XX Air Motor
(see manual AF1260-XX)
(refer to option chart)
Model Series
. . . . . . . . . . . AF1265SXXXXXX-XX-X
Pump Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Extrusion
Double Acting Pump
“A”
Spacer Section
Connector (see figure 2)
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65:1
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AF1260-XX
Motor Repair Kit. . . . . . . . . . . . . . . . . . . . . . . 637489
Y6-128-C Hex Cap Screw (6)
Y14-750-K Lock Washer (6)
Motor Diameter . . . . . . . . . . . . . . . . . . . . . . . 12”(30.5 cm)
Stroke (double acting). . . . . . . . . . . . . . . . . 6”(15.2 cm)
Air Inlet (female) . . . . . . . . . . . . . . . . . . . . . . . 3/4 - 14 N.P.T.F. - 1
Air Exhaust (female). . . . . . . . . . . . . . . . . . . . 1-1/4 - 11-1/2 N.P.S.M.
Lower Pump End Series . . . . . . . . . . . . . . . . . . 67300-XXX
Lower Pump Repair Kit . . . . . . . . . . . . . . . . 637348-XXD
Material Outlet (female) . . . . . . . . . . . . . . . 1-1/4 - 11-1/2 N.P.T.F. - 1
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 lbs (74.8 kgs)
95438 Spring
“B”
93866 Spacer Rod (3)
PUMP PERFORMANCE
Air Inlet Pressure Range . . . 30 - 90 p.s.i.g. (2.1 - 6.2 bar)
Fluid Pressure Range. . . . . . . . 1950 - 5850 p.s.i.g. (134.5 - 403.4 bar)
Maximum Rec'd Cycles / Minute . . . . . . . . . 70
Material Outlet (female)
1-1/4 - 11-1/2 N.P.T.F. - 1
“C”
Displacement In.3 Per Cycle. . . . . . . . . . . . . . . . 20.0
67300-XXX Lower Pump
(see manual 67300-XXX)
Volume / Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.08 oz. (327.6 ml)
Cycles Per Gallon . . . . . . . . . . . . . . . . . . . . . . . . 11.55
Flow @ 70 Cycles / Minute. . . . . . . . . . . . . . . . 6.06 g.p.m. (22.94 l.p.m.)
Noise Level @ 60 p.s.i. - 40 c.p.m. . . . . . . . . 93.0 db(A)*
Figure 1
NOTE: Dimensions are shown in inches and (mm) and are supplied for reference only.
The pump sound pressure level has been updated to an Equivalent Continuous
Sound Level (LAeq) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1
using four microphone locations.
*
(mm) (mm) (mm)
“A”
“B”
30.375"
“C”
(489.0)
19.250"
(1304.9)
(771.5)
51.375”
(for -1 model)
53.460”(1357.9)
30.375" (771.5)
19.250" (489.0)
IMPORTANT
This is one of four documents which support the pump. Re-
placement copies of these forms are available upon request.
AF1265SXXXXXX-XX-X Model Operator’s Manual (pn
97999-1528)
S-632 General Information - Industrial Piston Pumps (pn
97999-624)
67300-XXX Lower Pump End Operator’s Manual (pn 97999-961)
AF1260-XX Air Motor Operator’s Manual (pn 97999-1474)
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET - BRYAN, OHIO 43506
© 2010
CCN 15334170
(800) 495-0276 FAX (800) 892-6276
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GENERAL DESCRIPTION
PUMP CONNECTION - UPPER / LOWER
The chop-check pumps are primarily designed for the pumping
of heavy viscous material with or without fibrous content. The
models can be used with a gravity feed single post lift as a topper
type assembly or with a two post lift as a force feed type assem-
bly. The lower pump is designed for easy priming 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.
NOTE: All threads are right hand.
1. Lay the pump assembly on a work bench.
2. Remove the three (Y6-128-C) cap screws and (Y14-750-K) lock
washers from the three spacer rods (see figure 1).
3. Pull the air motor from the lower pump end until the motor
piston rod is in the “down”position and the lower pump end
rod is in the “up”position.
4. Remove the three spacer rods by removing the three (Y6-128-
C) cap screws and (Y14-750-K) lock washers.
5. Using e-ring pliers, slide the “e”ring up far enough to allow the
sleeve to move upward and release the two connectors (see
figure 2).
The motor is connected to the lower pump end by a spacer
section. This allows for lubrication of the upper packing gland
and prevents motor contamination because of normal wear and
eventual leakage through the material packing gland. Be sure the
solvent cup is adequately filled with lubricant to protect the upper
packings and insure longest service life.
HAZARDOUS PRESSURE. Do not exceed maxi-
WARNING
PUMP CONNECTION DETAIL
mum operating pressure of 5850 p.s.i. (403.4 bar) at 90
p.s.i. (6.2 bar) inlet air pressure.
Pump Ratio X
Inlet Pressure to Pump Motor
=
Maximum Pump
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) fluid pressure (at no flow) - as the fluid control is opened, the flow
rate will increase as the motor cycle rate increases to keep up with the demand.
Pump Motor Piston Rod
95069 “E” Ring
94688 Connector (2)
94689 Sleeve
Refer to general information sheet for additional
WARNING
safety precautions and important information.
NOTICE: Thermal expansion can occur when the fluid in the mate-
rial 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.
Lower Pump Piston Rod
TROUBLE SHOOTING
Figure 2
Pump problems can occur in either the air motor section or the
lower pump end section. Use these basic guidelines to help deter-
mine which section is affected.
REASSEMBLY
1. Align the pump motor with the lower pump end. Position the
air inlet of the motor 120° from the material outlet.
2. Install the two connectors (94688) and retain with the sleeve
(94689). Slide the “e”ring (95069) back into position.
3. Assemble the three spacer rods (93866) to the lower pump and
secure using three (Y14-750-K) lock washers and (Y6-128-C)
cap screws.
Pump will not cycle.
Be certain to first check for non-pump problems including
kinked, restrictive or plugged inlet / outlet hose or dispens-
ing device. Depressurize the pump system and clean out any
obstructions in the inlet / outlet material lines.
Refer to the motor manual for trouble shooting if the pump
does not cycle and / or air leaks from the air motor.
Damaged motor. Service the motor.
4. Reinstall the spacer rods to the pump motor.
5. Bring the motor and lower pump together and retain with
three (Y14-750-K) lock washers and (Y6-128-C) cap screws.
Pump cycles but does not deliver material.
Refer to the lower pump end manual for further trouble shoot-
ing.
Page 3 of 4
AF1265SXXXXXX-XX-X (en)
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PERFORMANCE CURVES
CYCLE PER MINUTE
0
25
50
75
6000
5000
4000
3000
2000
1000
300
250
200
150
100
50
90 PSI
70 PSI
70 PSI
90 PSI
40 PSI
40 PSI
0
0
2
4
6
0
U.S GALLONS PER MINUTE WATER DELIVER
CYCLE PER MINUTE
0
25
50
75
400.00
333.33
266.67
200.00
133.33
66.67
18
6.21 Bar
4.83 Bar
6.21 Bar
4.83 Bar
2.76 Bar
15
12
9
2.76 Bar
6
3
0.00
0
8
16
32
0
PN 97999-1528
Page 4 of 4
AF1265SXXXXXX-XX-X (en)
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