Ingersoll-Rand TWO BALL PUMP SERIES 650409-X User Manual

Page 2

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PN 97999-581

650409-X

Page 2 of 2

PUMP OPTION DESCRIPTION CHART

650409 - X

DESCRIPTION

PTFE Packing / Plain Rod & Tube, Standard Motor

1 UHMW-PE Packing / Plain Rod & Tube, Counter Motor

4 UHMW-PE Packing / Plain Rod & Tube, Standard Motor

DESCRIPTION

GENERAL DESCRIPTION

WARNING HAZARDOUS PRESSURE. Do not exceed maxi-

mumoperating pressureof1,350p.s.i.(93bar)at150p.s.i.(10.3

bar) inlet air pressure.

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 9:1 ratio pump it will develop a maximum of 1,350 p.s.i. (93 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 Refer to general information sheet for additional

safety precautions and important information.

Thetwo-balldesignprovidesforeasyprimingof thelower 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.

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 prob-

lems 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

NOTE: All threads are right hand.

1. Loosen (90606) lock nut and unscrew entire pump from the air mo-

tor. This will expose (90609) retaining screw (see figure 2).

2. Unscrew (90609) retaining screw to remove pump assembly from

the air motor.

3. Remove (90608) shoulder nut to remove (90609) retaining screw.

Lower Pump

Plunger

Pump Motor

Piston Rod

PUMP CONNECTOR DETAIL

Figure 2

Shoulder Nut

90608

Lock Nut

(90606) Ref.

Retaining Screw

90609

REASSEMBLY

1. Slide (90609) retaining screw over air motor rod (see figure 2).

2. Screw (90608) shoulder nut to air motor rod.

3. Apply Loctite 242 to threads of (90609) retaining screw and screw

(90609) retaining screw into lower pump plunger.

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

5. Position air motor exhaust port approximately 90_ from lower pump

outlet.

6. Screw (90606) lock nut against air motor base and tighten to 50 - 65

ft lbs (67.8 - 88.1 Nm).

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