Ingersoll-Rand 635040 User Manual

OPERAT

OPERATION,

INST

ALLA

OR’S MANUAL

TION & MAINTENANCE

635040

ARO STOP

PUMP SAVER CONTROL VALVE - 1/4” PIPE SIZE

R

635040

RELEASED: 11-4-81
REVISED: 6-30-00
(REV.

B)

READ THIS MANUAL CAREFULL

OPERA

It

is the responsibility of the employer to place this information in the hands of the operator

GENERAL

This device is to terminate operation of a 2" to 3Ć1/4" reciprocating type
air motor in the event of a ruptured outlet hose or the pump runs out of
media. For compressed air use only.

Operating Pressure Range 20 Ć 175 p.s.i. (1.4 Ć 12 bar)...

Temperature Range 0_ to 180_F(Ć18_ to 82_C).........

DESCRIPTION

TING OR SER

OPERATION

The AROĆSTOP control valve senses an increased volume of air to the
pump, beyond the preadjusted setting, and shuts off the air supply to
the pump. Therunaway" conditionmay becaused byany ofthe followĆ
ing: 1.) depleted pumping material, 2.) a ruptured line on the outlet of
the pump, 3.) excessive cavitation in the material supply.

To pump air inlet. a

Y BEFORE INST

VICING THIS EQUIPMENT

. Keep for future reference.

ALLING,

.

INSTALLATION

The AROĆSTOP valve should be installed in a filtered and regulated air
line. The Filter & Regulator should be no smaller than an Aro Module /
Air 2000 series. Upstream plumbing from the AROĆSTOP valve should
be 1/4" minimum. The Aro 1/4 coupler & connector furnished with

this model is to be installed on the inlet of the AROĆSTOP valve as
shown. Connect the 1/4 female end of the hose to the outlet of the

AROĆSTOP valve. Installing these items as illustrated is recommenĆ
ded. Use one AROĆSTOP valve for each pump. See installation photo
below.

AROĆSTOPR is a registered trademark of The Aro Corporation.

INGERSOLL-RAND COMPANY

P.O. BOX 151 D ONE ARO CENTER D BRYAN, OHIO 43506Ć0151

&

[phone] D F

AX [phone]

a From FĆRĆL.

E2000 D PRINTED IN U.S.A.

ADJUSTMENT

THE AROĆSTOP VALVE MUST BE PROPERLY ADJUSTED AND
TESTED. THE INSTALLATION SHOULD BE TESTED REGULARLY
AND ADJUSTED WHEN A CHANGE IN OPERATING CONDITIONS
OCCURS. ALL ADJUSTMENTS MUST BE MADE HOLDING THE
HOSE END OF THE AROĆSTOP VALVE IN A FIXED POSITION
WHILE TURNING THE SLEEVE.

1. Turn A" sleeve clockwise to the maximum inward position. See arĆ
row on sleeve of AROĆSTOP valve.

2. Supply AROĆSTOP valve with desired inlet operating pressure.

3. Depress C" reset button on the AROĆSTOP valve to start the
pump. Open the pump outlet to the desired flow condition.

4. Turn A" sleeve counterclockwise slowly until the pump stops.

5. Turn A" sleeve clockwise one quarter turn and tighten B" locking
nut against body.

6. To restart pump, depress the C" reset button and hold it in for

TROUBLE SHOOTING

AROĆSTOP valve does not close when it should.

• Improper adjustment. Readjust and test.

• Change has occurred in operating conditions (i.e. decrease in supĆ

ply pressure). Readjust and test.

AROĆSTOP valve closes for no apparent reason.

• Change has occurred in operating conditions (i.e. increase in supĆ

ply pressure). Readjust and test.

• Material supply has been interrupted. Insure constant material supply.

approx. 3 seconds or until pump primes. If the pump does not reset
and run, repeat step (5). If pump operates, continue on toTestSecĆ
tion.

TEST:

7. To test installation; with the pump operating, remove the pump (or
siphon tube)from the material supply. If thepump shutsoff, the unit
is set properly.

8. If the pump continues to turn, resubmerge the pump (or siphon
tube) in the material supply. Loosen the B" locking nut and turn the
A" sleeve counterclockwise approx. one quarter turn, tighten B"
locking nut, and repeat step (7).

RESTART:

9. To restart; Remedy the cause of the shutdown. If the air supply is
shutĆoff, turn the air back on.

10. Depress the C" reset button and hold it in approx. 3 seconds.

• Air supply turned on too quickly. Depress reset button.

Pump continues to cycle after AROĆSTOP valve closes.

• Foreign matter on sealing surface of AROĆSTOP valve. DisasĆ

semble and clean valve as described in Service Section.

NOTE: Very slow cycling may occur even after AROĆSTOP valve
closes. This is normal.
AROĆSTOP valve does not start when reset button is depressed.

• Improper adjustment. Readjust and test.

WARNING Always disconnect and relieve air pressure from the AROĆSTOP valve before removing it from the system for servicing.

SERVICE INSTRUCTIONS

DISASSEMBLY:

1. Unscrew therear adapterassembly fromthe sleeve assembly. This
allows accessibility to the 22836 valve assembly and the 22227
spring.

2. Clean all parts and inspect for damage or wear. Replace the 22836
valve assembly or 22227 spring if necessary.

ASSEMBLY:

1. Reassemble the 22836 valve assembly and the 22227 spring as
shown in the view.

2. Apply thread locking compound to the threads of the rear adapter
assembly and tighten to the sleeve assembly using 30 Ć 40 ft lb
(40.7 Ć 54.2 Nm) torque.

NOTE: Parts other than 22836 valve assembly and 22227 spring,
are not accessible for service and should not be disassembled.

2283622227

CAB

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PN 103996

635040