Ingersoll-Rand LM2250E-XX-B3 User Manual
OPERATOR’S MANUAL LM2250E-XX-B3
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, TROUBLESHOOTING.
INCLUDE MANUALS: S-632 General Information Manual (pn 97999-624).
RELEASED: 6-18-08
REVISED: 8-1-11
(REV. 04)
2” AIR MOTOR
50:1 RATIO
0 - 7500 P.S.I. RANGE
CHOP-CHECK GREASE PUMP
LM2250E-XX-B3
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® replacement parts to assure compat-
y
ible pressure rating and longest service life.
637332 pump rebuild kit. Includes the necessary soft parts for
y
MODEL LM2250E-XX-B3
PUMP DATA
normal service of the entire pump.
SPECIFICATIONS
Model Series
(refer to option chart)
. . . . . . . . . . . LM2250E-XX-B3
Pump Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Chop-
Check Grease Pump
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50:1
Air Motor Diameter . . . . . . . . . . . . . . . . . . . . . . 2” (5.08 cm)
Stroke (double acting) . . . . . . . . . . . . . . . . . . . 3” (7.62 cm)
Air Inlet (female) . . . . . . . . . . . . . . . . . . . Rp 1/4 (1/4 - 19 BSP Parallel)
Material Outlet (female) . . . . . . . . . . . . Rc 3/8 (3/8 - 19 BSP Taper)
Pump Construction . . . . . . . . . . . . . . . . . . . . . . Carbon Steel
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . see chart
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see chart
"A"
1-1/4"
(31.3 mm)
Air Inlet (female)
Rp 1/4 (1/4 - 19 BSP parallel)
Material Outlet (female)
Rc 3/8 (3/8 - 19 BSP taper)
2 - 11-1/2 N.P.S.M.
PUMP PERFORMANCE
Air Inlet Pressure Range . . . . . . . . . . . 0 - 150 p.s.i.g. (0 - 10.3 bar)
Fluid Pressure Range . . . . . . . . . . . . . . 0 - 7500 p.s.i.g. (0 - 517.2 bar)
Cycles / Minute Rec’d @ Working Flow . . . 80
Displacement In. Per Cycle . . . . . . . . . . . . . . 0.300
Volume / Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.17 oz. (4.91 ml)
Maximum Delivery / Minute . . . . . . . . . . . . . 9 lbs (4.1 kgs)
Noise Level @ 100 p.s.i. . . . . . . . . . . . . . . . . . . 85.0 db(A)
c
Accessories Available . . . . . . . . . . . . . . . . 61113 Wall Mount Bracket
66073-1 Air Line Connection Kit
The pump sound pressure level has been updated to an Equivalent Continuous
c
Sound Level (LAeq) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1
using four microphone locations.
GENERAL DESCRIPTION
Model LM2250E-XX-B3 series chop-check grease pump is intended
to be used primarily for grease delivery systems. It uses carbon
steel and other materials which make it compatible with most petroleum based lubrication products.
NOTE: If this pump was purchased separately (not part of a system),
consult your sales representative for compatible dispensing accessories which will best match the application. All accessories must
be able to withstand the maximum pressure developed by the
pump.
"B"
5/16” (8 mm) thru hole
Figure 1
NOTE: Dimensions are shown in inches and (mm) and are supplied for reference only.
Model Number "A"
LM2250E-22-B3 27-3/4"
LM2250E-32-B3 40-1/2"
LM2250E-42-B3 49"
LM2250E-62-B3 30-1/2"
(mm)
"B"
(704.2)
(1028.1)
(1244.0)
37-13/16"
(774.1)
16-9/16"
19-5/16"
(mm)
Weight
(420.6)
29-5/16"
(744.5)
(960.4)
(490.5)
(kg)
15 lbs
19 lbs
15.9 lbs
(6.8)
(8.6)
21.5 lbs
(9.8)
(7.2)
IMPORTANT
This is one of two documents which support the pump. Replacement copies of these forms are available upon request.
LM2250E-XX-B3 Model Operator’s Manual (pn 97999-1343)
:
S-632 General Information - Air Operated Lubrication Piston
Pumps (pn 97999-624)
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 y FAX (800) 892-6276
www.ingersollrandproducts.com
© 2011 CCN 15292261
PARTS LIST / LM2250E-XX-B3
Item Description
1 Carriage Bolt
2 Upper Cap (1) 94307 [Z]
c
3 Gasket (2) 94311 [B]
4 Sleeve (2) 94316 [Br]
c
5 “O” Ring
c
6 “O” Ring
7 Spool (2) 94310 [D]
c
8 “U” Cup
c
9 “O” Ring
10 Cylinder (1) 94249 [A]
11 Adapter (1) 94447-1 [C]
c
12 “O” Ring
c
13 “O” Ring
14 Mu er Housing (1) 94443 [A]
15 Foam Liner (2) 94402 [U]
16 Retaining Ring (1) 94406 [C]
17 Washer (1) 94515 [C]
c
18 “U” Cup
19 Piston (1) 94780 [D]
20 Piston Adapter (1) 94388 [C]
c
21 “O” Ring
22 Dowel Pin
c
23 “O” Ring
c
24 Rod Seal (1) 95139 [U]
25 Washer (1) 94785 [C]
26 Spring (1) 94705 [C]
27 Base (1) 67241-1 [C/Z]
28 Nut
29 Ground Screw
c
30 Gasket (1) 70834 [Co]
Extension Tube
31
models LM2250E-22-B3 (7.531”)
models LM2250E-32-B3 (20.281”)
models LM2250E-42-B3 (28.781”)
models LM2250E-62-B3 (10.281”)
(size)
(1/16” x 11/16” o.d.)
(1/8” x 3/4” o.d.)
(1/8” x 3/4” o.d.)
(0.106” x 0.587” o.d.)
(1/16” x 3/4” o.d.)
(1/16” x 7/16” o.d.)
(3/16” x 2” o.d.)
(3/32” x 1” o.d.)
(1/4” o.d. x 7/8” long)
(3/32” x 13/16” o.d.)
(1/4” - 20)
(1/4” - 20 x 9”)
(#10 - 32 x 1/4”)
(Qty) Part No. Mtl
(4) 94333 [C]
(4) Y325-15 [B]
(4) Y325-206 [B]
(2) Y240-7 [B]
(2) 15066-PM [B]
(1) Y325-16 [B]
(1) Y325-11 [B]
(2) Y240-23 [B]
(1) Y325-117 [B]
(1) Y148-37 [C]
(1) Y325-114 [B]
(4) 93828 [SS]
(1) 93005 [C]
(1) 94401-2 [C]
(1) 94401-7 [C]
(1) 94401-8 [C]
(1) 94401-6 [C]
Item Description
c
32 Gasket (1) 70837 [Co]
(size)
(Qty) Part No. Mtl
33 Piston Rod (1) 95137 [C]
34 Pin (1) 94786 [C]
c
35 Cotter Pin
Connector
36
Piston and Tube Assembly
(1/16” x 1/2” long)
models LM2250E-22-B3 (3.457”)
models LM2250E-32-B3 (16.207”)
models LM2250E-42-B3 (24.707”)
models LM2250E-62-B3 (6.207”)
(includes
items 37 - 40 and 49)
(1) Y15-21 [C]
(1) 94340-2 [C]
(1) 94340-7 [C]
(1) 94340-8 [C]
(1) 94340-6 [C]
(1) 67262
37 Lower Suction Tube (1) [C]
38 Plunger (1) [C]
39 Ball Stop (1) 83276 [C]
(9/32” dia.)
40 Ball
c
41 Guide Washer (1) 95131 [Co]
(1) Y16-209 [C]
42 Spacer (1) 72392-1 [C]
c
43 Retaining Ring
c
44 “U” Cup
c
45 Guide (1) 95132 [T]
(0.877” o.d.)
(1/8” x 13/16” o.d.)
(1) 76243-1 [C]
(1) Y186-54 [B]
46 Foot Valve Body (1) 95133 [SH]
Foot Valve Assembly
c
47 Gasket (1) F21-65 [Co]
(includes items 43 - 46)
(1) 67242
48 Valve Seat (1) 6797 [C]
49 Primer Rod (1) 95134 [C]
50 Primer (1) 94400 [C]
c
51 Retainer Ring (1) 94397 [C]
52 Primer Tube (1) 753750 [C]
53 Grease Filter (1) 753751 [SS]
54 Internal Circlip (1) 753752 [C]
55 Bung Assembly
56 Thumb Screw
c
Gadus S2 U1000 Grease Packet (1) 94833
c
Items included in repair kit 637332
(includes item 56)
(1/4” - 20 x 1”)
(1) 67145-2 [ZA]
(3) Y66-59-C [C]
OPERATING AND SAFETY PRECAUTIONS
WARNING
sion, resulting in severe injury or death. Do not exceed
maximum operating pressure of 7500 p.s.i. (517 bar) at 150
p.s.i. (10.3 bar) inlet pressure. Do not run pump without using a regulator to limit air supply pressure to the pump.
WARNING
equipment failure, resulting in severe injury or property
damage. Do not exceed the maximum material pressure of
any component in the system.
Replacement warning label (pn 94520) is available upon request.
Page 2 of 4 LM2250E-XX-B3 (en)
EXCESSIVE INLET PRESSURE. Can cause explo-
EXCESSIVE MATERIAL PRESSURE. Can cause
y ARO® is a registered trademark of Ingersoll Rand Company y Gadus® is a registered trademark of the Shell Oil Company y
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 the general information manual included for additional operating and safety precautions and
other 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.
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