TROUBLE SHOOTING
AROSTOP valve does not close when it should.
•Improper adjustment. Readjust and test.
•Change has occurred in operating conditions (i.e. decrease in sup
ply pressure). Readjust and test.
AROSTOP valve closes for no apparent reason.
•Change has occurred in operating conditions (i.e. increase in sup ply pressure). Readjust and test.
•Material supply has been interrupted. Insure constant material sup ply.
•Air supply turned on too quickly. Depress reset button. Pump continues to cycle after AROSTOP valve closes.
•Foreign matter on sealing surface of AROSTOP valve. Disas
semble and clean valve as described in Service Section.
NOTE: Very slow cycling may occur even after AROSTOP valve closes. This is normal.
AROSTOP valve does not start when reset button is depressed.
•Improper adjustment. Readjust and test.
WARNING
Always disconnect and relieve air pressure from the AROSTOP valve before removing it from the system for servicing.
SERVICE INSTRUCTIONS
DISASSEMBLY:
1.Unscrew the rear adapter assembly from the sleeve assembly. This allows accessibility to the 22836 valve assembly and the 22207 spring.
2.Clean all parts and inspect for damage or wear. Replace the 22836 valve assembly or 22207 spring if necessary.
ASSEMBLY:
1.Reassemble the 22836 valve assembly and the 22207 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 40 ft lb (40.7 54.2 Nm) torque.
NOTE: Parts other than 22836 valve assembly and 22207 spring, are not accessible for service and should not be disassembled.
22836
22207
PN 103994
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