OPERATOR’S MANUAL NM2318B-X-X
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING
INCLUDE MANUAL: 67310-X-XLOWER PUMP END (PN 97999-1129),6691X AIR MOTOR (PN 97999-748) & S-632 GENERAL INFORMATION (PN 97999-624)
NM2318B-13-X43
3” AIR MOTOR
18:1 RATIO
3” STROKE
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
TWO BALL PUMP SERIES
STAINLESS STEEL
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
RELEASED: 10-28-04
REVISED: 6-1-10
(REV. 02)
SERVICE KITS
Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
637316 for repair of air motor section.
637394-X43 for repair of 67310 -13-X43 lower pump section.
SPECIFICATIONS
Model Series (refer to option chart) NM2318B-13-X43.......
Type Air Operated, Two Ball........................
Ratio 18:1........................
Air Motor 66917.....................
Motor Repair Kit 637316..............
Motor Diameter 3” (7.62 cm)..............
Stroke (Double Acting) 3” (7.62 cm).........
Air Inlet (female) 1/4 - 18 N.P.T.F. - 1..............
Lower Pump End Series 67310-X-X.........
models NM2318B-13-C
models NM2318B-13-L
Lower Pump End Repair Kit
models NM2318B-13-C
models NM2318B-13-L
Material Inlet (female) 1/2 - 14 N.P .T.F. - 1..........
Material Outlet (male) 1/4 - 18-1/2 N.P.S.M...........
Weight 12.63 lbs (5.7 kg).......................
Air Inlet Pressure Range 0 - 150 p.s.i. (0 - 10.3 bar).........
Fluid Pressure Range 0 - 2700 p.s.i. (0 - 186.2 bar)...........
Maximum Rec’d Cycles / Minute 120...
Displacement In
3
Per Cycle 2.35.......
Volume / Cycle 1.30 oz. (38.5 ml).................
Cycles Per Gallon 98.3..............
Flow @ 60 Cycles / Minute 0.61 g.p.m. (2.3 l.p.m.)........
Noise Level @ 100 p.s.i. 85 db(A) *..........
Accessories Available 95015 Wall Mount Bracket...........
* The pump sound pressure level has been updated to an Equivalent Continuous Sound
Level (L
microphone locations.
) to meet the intent of ANSI S1. 13-1971, CAGI-PNEUROP S5.1 using four
Aeq
43 67310-13-C43......
43 67310-13-L43......
43 637394-C43......
43 637394-L43......
PERFORMANCE
PUMP DATA
MODEL NM2318B-13-X43
66917 Air Motor
(see manual 6691X)
Air Inlet (female)
1/4 - 18 N.P.T.F. - 1
95477 Tie Rod (3)
95506 Spring
22-3/16”
(563.6 mm)
13-3/16”
(334.2 mm)
6-15/16”
(175.4 mm)
Not Shown
66885-1 Ground Kit Assembly
Figure 1
NOTE: Dimensionsareshown in inches and (mm), supplied for reference only and are
typically rounded up to the nearest 1/16 inch.
IMPORTANT
This is one of the four documents which support the pump. Replacement copies of these forms are available upon request.
= NM2318B-X-X Model Operator’s Manual (pn 97999-1128)
- General Information -- Air / Hydraulic Operated Industrial Piston
Pumps (pn 97999-624)
- 67310-X-X Lower Pump End Operator’s Manual (pn 97999-1129)
- 6691X Air Motor Operator’s Manual (pn 97999-748)
Connector (see figure 2)
Material Outlet (male)
1/4 - 18-1/2 N.P.S.M.
Y12-4-C Nut (3) (1/4” - 20)
67310-13-X43 Lower Pump
(see manual 67310-X-X)
SeeNote2
(Pump Connection, page 2)
Material Inlet (female)
1/2 - 14 N.P.T.F. - 1
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
www.ingersollrandproducts.com
© 2010
CCN 15232713
PUMP OPTION DESCRIPTION CHART
NM2318B - 1 3 - X 4 3
CONTAINER SUITABILITY
PACKING MATERIAL
SPRING ARRANGEMENT
PLUNGER TYPE
CONTAINER SUITABILITY PACKING MATERIAL
1 - Universal (Stub) C - UHMW-PE (upper and lower)
L - Mineral filled PTFE (upper and lower)
SPRING ARRANGEMENT PLUNGER TYPE
4 - Multiple Wave Spring 3 - Standard (400 series Stainless steel with hard
chrome plating)
GENERAL DESCRIPTION
WARNING
mum operating pressure of 2700 p.s.i. (186.2 bar) at 150 p.s.i.
(10.3 bar) inlet air pressure.
INLET PRESSURE TO PUMP MOTOR
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.
WARNING
safety precautions and important information.
HAZARDOUS PRESSURE. Do not exceed maxi-
PUMP RATIO X MAXIMUM PUMP
= FLUID PRESSURE
Refer to general information sheet for additional
Thetwo-ball 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 boththe up and
down stroke.
The motor is connected to the lower pump end with 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.
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.
Restricted return lines. Clean obstruction.
Damaged motor. Service motor.
No material at the outlet (pump continually cycles).
Check the material supply, disconnect or shut off the air supply 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
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 upstroke).
The middle packings may be worn (see lower pump disassembly).
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 leakage discontinues. If this procedure
does not aid in stopping the leakage problem, the upper packings
may be worn (see lower pump disassembly). Replace the seals as
necessary.
PUMP CONNECTION -- UPPER / LOWER
DISASSEMBLY
NOTE: All threads are right hand.
NOTE 2: When disassembling lower pump end from pump, use a
wrench on the flats of (12) tube, (23) inlet body and (29) seat body
to prevent from twisting and damaging the tie rods (see Operator’s
Manual 67310-X-X, p/n 97999-1129 for lower pump end item numbers).
1. Lay the pump assembly on a workbench.
2. Remove the three nuts from the three tie rods (figure 1).
3. Pull the air motor from the lower end until the motor piston rod is in
the “down” position and the lower pump end plunger is in the “up”
position.
4. Removethe cotter pin and pin, releasing motor pistonrod from lower
pump end plunger.
PUMP CONNECTOR DETAIL
Motor Piston Rod
95498 Pin
Y15-21-S Cotter Pin
(1/16” o.d. x 1/2” long)
Lower Pump Plunger
Figure 2
REASSEMBLY
1. Assemble lower pump end plunger to motor piston rod, aligning
through holes.
2. Assemble pin through hole, securing rods.
3. Assemble cotter pin through pin.
4. Rotate the lower pump end so the material outlet is 180_ from the
motor air inlet.
5. Assemble the tie rods to the lower pump end.
6. Retain with three nuts.
PN 97999-1128
NM2318B-X-XPage2of2