OPERATOR’S MANUAL
612041-X
2” AIR MOTOR
1:1 RATIO
0 - 150 P.S.I. RANGE
INCLUDE MANUAL: S-632 GENERAL INFORMATION (PN 97999-624)
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING
2” DIFFERENTIAL
TRANSFER PUMP
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.
612042-X
SERVICE KITS
SPECIFICATIONS
Model Series
61204X-X
. . . . . . . . . . . . . . . . .
Type
Air Operated, transfer pump
. . . . . . . . . . . . . . . . . . . . . . .
Ratio
1:1
. . . . . . . . . . . . . . . . . . . . . . .
Air Motor Diameter
2’’ (5.08 cm)
. . . . . . . . . . . .
Stroke
6’’ (15.24 cm)
. . . . . . . . . . . . . . . . . . . .
Air Inlet (female)
1/4 - 18 N.P.T.F. - 1
. . . . . . . . . . . . .
Material Inlet
immersed
. . . . . . . . . . . . . . .
Material Outlet (female)
3/4 - 14 N.P.T.F. - 1
. . . . . . .
Pump Construction
Carbon Steel
. . . . . . . . . .
Dimensional Data
See Chart
. . . . . . . . . . . . .
Weight
See Chart
. . . . . . . . . . . . . . . . . . . . . .
PERFORMANCE
Air Inlet Pressure Range
0 - 150 p.s.i. (0 - 10.3 bar)
. . . . . . . .
Fluid Pressure Range
0 - 150 p.s.i. (0 - 10.3 bar)
. . . . . . . . . .
Maximum Rec’d Cycles / Minute
75
. .
Displacement In
3
Per Cycle
18.8
. . . . . .
Volume / Cycle
10.4 oz. (307.7 ml)
. . . . . . . . . . . . . . . .
Cycles Per Gallon
12.3
. . . . . . . . . . . . .
Maximum Working Flow Rate
6 g.p.m. (22.7 l.p.m.)
. . . .
Maximum Flow Rate
18 g.p.m. (68.1 l.p.m.)
. . . . . . . . . . .
Noise Level @ 60 p.s.i., 40 c.p.m.
77.8 db(A)*
. .
* The pumpsoundpressure levelhasbeenupdatedtoanEquivalentContinuousSound
Level(L
Aeq
) to meetthe intentofANSI S1. 13-1971, CAGI-PNEUROP S5.1 using four
microphone locations.
GENERAL DESCRIPTION
The Aro 2’’ differential 1:1 ratio transfer pumps are intended to be used
primarily for oil transfer and delivery systems. It is best to use this pump
with low - medium viscosity fluids. It uses carbon steel and other materi-
als which make it compatible with most petroleum based lubrication
products.
OPERATING AND SAFETY PRECAUTIONS
WARNING
Read the General Information Manual for operat-
ing and safety precautions and important information.
PUMP DATA
Figure 1
Material Inlet
Immersed
Air Inlet (female)
1/4 - 18 N.P.T.F. - 1
MODEL 61204X-X
Material Outlet (female)
3/4 - 14 N.P.T.F. - 1
NOTE: Dimensions are shown in inches and (mm), supplied for reference only and are typically
rounded up to the nearest 1/16 inch.
MODEL
“A”
(mm)
“B”
(mm)
WEIGHT (kg)
612041-X
54”
(1371.6)
34-5/8”
(879.5)
13 lb
(5.9)
612042-X
64-1/4”
(1631.9)
44-7/8”
(1139.8)
14 lb
(6.4)
“A”
‘‘B’’
48
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
© 201
7
CCN
99444598
arozone.com
IMPORTANT
This is one of two documents which support the pump. Replace-
ment copies of these forms are available upon request.
=
612041-X
MODEL OPERATOR’S MANUAL
-
S-63
2
GENERAL INFORMATION LUBRICATION PISTON PUMPS
x
Use only genuine ARO
R
replacement parts to assure compatible
pressure rating and longest service life.
x
637084 for air motor repair (see page 2).
x
637081 for lower pump end (Nitrile) repair (see page 3).
x
637083 for lower pump end (PTFE) repair (see page 3).
RELEASED:
10-23-86
REVISED:
4-21-17
(REV:
M)
