CCN 99879389
OPERATOR’S MANUAL
LM2250E-X-B
RELEASED:
6-1-00
REVISED: 10-13-11
(REV. M)
CHOP-CHECK GREASE PUMP
2” AIR MOTOR
50:1 RATIO
0 - 7500 P.S.I. RANGE
INCLUDE MANUAL: S-
632
GENERAL INFORMATION (PN 97999-
624)
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING
LM2250E-( )-B
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
!
Use only genuine ARO
R
replacement parts to assure compatible
pressure rating and longest service life.
!
637332 Pump Rebuild Kit.
Includes the necessary soft parts for
normal service of the entire pump.
SPECIFICATIONS
Model Series
LM2250E-X-B
. . . . . . . . . . . . . . . . . . . .
Type
Air Operated, Chop-Check Grease Pump
. . . . . . . . . . . . . . . .
Ratio
50:1
. . . . . . . . . . . . . . . . . . . . . . . . . .
Air Motor Diameter
2” (5.08 cm)
. . . . . . . . . . . . . . .
Stroke
3” (7.62 cm)
. . . . . . . . . . . . . . . . . . . . . . . . .
Air Inlet
(female)
LM2250E-X1-B
1/4 - 18 N.P.T.F. - 1
. . . . . . . . . . . . . . .
LM2250E-X2-B
Rp 1/4 (1/4 - 19 BSP Parallel)
. . . . . . . . . .
Material Outlet
(female)
LM2250E-X1-B
3/8 - 18 N.P.T.F. - 1
. . . . . . . . . . . . . . . . . .
LM2250E-X2-B
Rc 3/8 (3/8 - 19 BSP Taper)
. . . . . . . . . . . . .
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 - 7500 p.s.i. (0 - 517.2 bar)
. . . . . . . . . . .
Cycles / Minute Rec’d @ Working Flow
80
Displacement In
3
Per Cycle
0.300
. . . . . . . . .
Volume / Cycle
0.17 oz. (4.91 ml)
. . . . . . . . . . . . . . . . . . .
Maximum Delivery / Minute
9 lbs (4.1 kg)
. . . . . . . . .
Noise Level @ 100 p.s.i.
85 db(A)*
. . . . . . . . . . . .
Accessories Available
61113 Wall Mount Bracket
. . . . . . .
66073
-
1 Air Line Connection Kit
*
The pump sound pressure level has been updated to an Equivalent Continuous Sound
Level (L
Aeq
) to meet the intent of ANSI S1. 13-1971, CAGI-PNEUROP S5.1 using four
microphone locations.
GENERAL DESCRIPTION
Model LM2250E-X-B series chop-check grease pump is intended to be
used primarily for grease delivery systems. It uses carbon steel and oth-
er materials which make it compatible with most petroleum based lu-
brication products.
NOTE: If this pump was purchased separately (not part of a system),
consult your sales representative for compatible dispensing accesso-
ries which will best match the application. All accessories must be able
to withstand the maximum pressure developed by the pump.
PUMP DATA
MODEL LM2250E-X-B
MODEL
“A”
(mm)
“B”
(mm)
WEIGHT
(kg)
LM2250E-21-B
27-3/4”
(704)
16-9/16”
(421)
15
(6.8)
LM2250E-22-B
27-3/4”
(704)
16-9/16”
(421)
15
(6.8)
LM2250E-31-B
38-7/16”
(976)
27-1/4”
(692)
18.3
(8.3)
LM2250E-32-B
40-1/2”
(1028)
29-5/16”
(744)
19
(8.6)
LM2250E-41-B
48”
(1219)
36-13/16”
(935)
21.2
(9.6)
LM2250E-42-B
49”
(1244)
37-13/16”
(960)
21.5
(9.8)
LM2250E-61-B
30-1/2”
(774)
19-5/16”
(490)
15.9
(7.2)
LM2250E-62-B
30-1/2”
(774)
19-5/16”
(490)
15.9
(7.2)
LM2250E-M2-B
36-15/16”
(937)
25-3/4”
(653)
17.8
(8.1)
NOTE: Dimensions are shown in inches and (mm), supplied for reference only and are typically
rounded up to the nearest 1/16 inch.
Figure 1
Air Inlet (female)
see “Specifications”
Material Outlet (female)
see “Specifications”
2” N.P.S.M. Bung Adapter
5/16” (8 mm) Thru hole
“B”
“A”
1-1/4”
(31.3 mm)
IMPORTANT
This is one of two documents which support the pump. Replace-
ment copies of these forms are available upon request.
=
LM2250E-X-B
Model Operator’s Manual (pn 97999-914)
-
S-
632
General Information Lubrication Piston Pumps (pn
97999
-624)
WARNING
READ THE GENERAL INFORMATION MANUAL
INCLUDED FOR ADDITIONAL OPERATING AND SAFETY PRE-
CAUTIONS AND OTHER IMPORTANT INFORMATION.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
© 201
1
www.ingersollrandproducts.com
