Ingersoll-Rand NM2328A-X User Manual

OPERATOR’S MANUAL NM2328A-X

SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, TROUBLESHOOTING

INCLUDE MANUALS: 66066-X LOWER PUMP END (PN 97999-770), 66913 AIR MOTOR (PN 97999-748) &
S-632 GENERAL INFORMATION MANUAL (PN 97999-624).

3” AIR MOTOR
28:1 RATIO
3” STROKE

TWO BALL PUMP SERIES

NM2328A-11-X11

STAINLESS 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.

RELEASED: 10-21-97
REVISED: 6-1-10
(REV. C)

SERVICE KITS

 Use only genuine AROR replacement parts to assure compatible

pressure rating and longest service life.

 637316 for repair of Air Motor section.
 637006-1 for repair of 66066-1 lower pump section.

637006-2
637006-3
637007

for repair of 66066-2 lower pump section.
for repair of 66066-3 lower pump section.

for replacement of foot valve assembly.

SPECIFICATIONS

Model Series (refer to option chart) NM2328A-11-X11...

Type Air Operated, Two Ball....................

Ratio 28:1....................

Air Motor 66914.................

Motor Repair Kit 637316..........

Motor Diameter 3” (7.62 cm)...........

Stroke (Double Acting) 3” (7.62 cm).....

Air Inlet 1/4 - 18 N.P.T.F. (female).................

Lower Pump End Series

NM2328A-11-311 66066-1.........

NM2328A-11-G11 66066-2........

NM2328A-11-S11 66066-3........

Material Inlet 1/2 - 14 N.P.T.F. - 1 (female).............

Material Outlet 1/4 - 18 N.P.S.M. (male)...........

21-3/4”

(552.1 mm)

13-1/32”

(331.0 mm)

PUMP DATA

MODEL NM2328A-11-X11

Air Inlet
1/4 - 18 N.P.T.F. (female)

Air Motor 66914

(see manual 66913)

Solvent Cup 91019

‘‘O” Ring 91021

(not shown) (.070” x 1-3/4” o.d.)

Material Outlet
1/4 - 18 N.P.S.M. (male)

PERFORMANCE

Air Inlet Pressure Range 0 - 150 p.s.i. (0 - 10.3 bar).....

Fluid Pressure Range 0 - 4200 p.s.i. (0 - 289.7 bar).......

Max. Rec’d Cycles / Minute 125...
Displacement In

Volume / Cycle 0.81 oz. (.45 ml).............

Cycles Per Gallon 157.5..........

Flow @ 60 Cycles / Minute 0.38 g.p.m. (1.44 l.p.m.)....

Noise Level @ 100 p.s.i. 85 db(A) *......

Accessories Available 61113 Wall Mount Bracket.......

* The pump sound pressure level hasbeen updated to an Equivalent ContinuousSound

Level (L
crophone locations.

) tomeet the intent of ANSI S1. 13-1971, CAGI-PNEUROP S5.1 using four mi-

Aeq

INGERSOLL RAND COMPANY LTD

209 NORTH MAIN STREET – BRYAN, OHIO 43506

[phone] FAX[phone]

www.ingersollrandproducts.com

3

Per Cycle 1.47...

66073-1 Air Line Connection Kit

© 2010

CCN 99713448

6-1/4”

(158.6 mm)

Lower Pump 66066-X

(see manual 66066-X)

Material Inlet
1/2 - 14 N.P.T.F. - 1 (female)

FIGURE 1

NOTE: Dimensionsare shown in inches and (mm), suppliedfor reference only andare

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.

= NM2328A-X MODEL OPERATOR’S MANUAL

- GENERAL INFORMATION -- INDUSTRIAL PISTON PUMPS

- 66066-X LOWER PUMP END OPERATOR’S MANUAL

- 66913 AIR MOTOR OPERATOR’S MANUAL

PUMP OPTION DESCRIPTION CHART

NM2328A - 1 1 - X 1 1

CONTAINER SUITABILITY

PACKING MATERIAL

SPRING ARRANGEMENT

PLUNGER TYPE

GENERAL DESCRIPTION

WARNING

mum operating pressure of 4200 p.s.i. (289.7 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 28:1 ratio pumpit will develop a maximum of 4200 p.s.i. (289.7 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.

 Thetwo-ball design provides for easypriming of the lower footvalve.

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.

 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.

HAZARDOUS PRESSURE. Do not exceed maxi-

PUMP RATIO X MAXIMUM PUMP

= FLUID PRESSURE

Refer to general information sheet for additional

CONTAINER SUITABILITY

1

UNIVERSAL (STUB)

SPRING ARRANGEMENT

COIL

1

PLUNGER TYPE

440 SERIES STAINLESS STEEL

1

PACKING MATERIAL

3

GLASS FILLED PTFE (UPPER AND LOWER)

G UHMW-PE / LEATHER STAG’D (UPPER AND LOWER)
S UHMW-PE / GLASS FILLED PTFE STAG’D (UPPER

AND LOWER)

PUMP CONNECTION -- UPPER / LOWER

NOTE: All threads are right hand.

1. Loosen (90027) lock nut and unscrew entire pump from the air mo­tor. This will expose (94786) connecting pin (see figure 2).

2. Remove (Y15-21-S) cotter pin and (94786) connecting pin to re­lease plunger from piston rod.

PUMP CONNECTOR DETAIL

Pump Motor

Piston Rod

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.

Lock Nut

(90027) Ref.

Connecting Pin

(94786) Ref.

Cotter Pin

(Y15-21-S) Ref.

Lower Pump

Plunger

FIGURE 2

REASSEMBLY

1. Assemble (90267) plunger to air motor rod, aligning through holes.

2. Assemble (94786) connecting pin through hole, securing plunger.

3. Assemble (Y15-21-S) cotter pin through connecting pin.

4. Screw the lower pump assembly to the air motor.

5. Screw (90027) lock nut against air motor base and tighten.

PN 97999-751

NM2328A-XPAGE 2 OF 2