Ingersoll-Rand H2XXXX-XXX-X manual Application

Warnings and Cautions

APPLICATION

WARNINGS:

1.ARO valves are designed for use only in industrial pneumatic (air) and / or vacuum systems applications and are NOT to be used for individual consumer use, application or service.

2.When any ARO valve is used in any type application, safe- guards must be provided to insure against bodily injury for the operator and / or other persons in the immediate area.

3.ARO valves are NOT to be used as a safety device or to oper- ate and / or control the operation of full revolution clutch sys- tems and / or brake systems on power presses or similar equipment. ARO valves are not designed or intended for such uses.

LUBRICATION

Valve components are lubricated at the time of assembly at the factory and can normally be operated without air line lubrication to an approximate life of twenty million cycles, depending on ap- plication. If air line cylinders or other air line devices, used in con- junction with ARO valves, require lubrication, be sure the lubricat- ing oils used are compatible with the valve seals and are of sufficient viscosity to assure adequate lubrication. Aro recom- mends an oil lubricant with a viscosity of 100 - 200 SUS at 100_ F and an aniline point above 200_ F. Aro does not recommend the use of compound oils containing graphite fillers, extremely low viscosities and other non-fluidic lubricants. RECOMMENDED: Aro 29665 air line lubricator oil is available in one quart containers.

INSTALLATION AND SERVICE

WARNINGS:

1.Shut off, disconnect and exhaust air pressure from system be- fore installing or performing service to any ARO valve.

2.Shut off and disconnect electrical supply to system before installing or performing service to any ARO valve.

3.Allow only persons with a thorough understanding of the op- eration and application of all ARO valves being used in a par- ticular system and how the ARO valve(s) relate to and interact with other components of the system to install or perform maintenance or service to any ARO valve or other compo- nents of the system.

4.DO NOT subject any ARO valve to any condition that exceeds

the limits set forth in the specifications for a particular valve model.

5.When a manually operated (actuated) valve is used or installed into a system, provisions must be made to prevent the valve from being accidentally operated (actuated), which may in turn cause bodily injury or otherwise cause a hazard- ous or dangerous condition

6.Damaged air pressure hoses or electrical wiring, or connec- tions, can cause accidental valve operation (actuation), which may in turn cause bodily injury or otherwise cause a hazard- ous or dangerous condition. KEEP ALL HOSES, ELEC-

TRICAL WIRING, FITTINGS AND CONNECTIONS IN FIRST CLASS OPERATING CONDITION.

7.ARO 2-POSITION, 4-WAY VALVES: Regardless of which of the 2-positions this type of ARO valve is in, when air pressure is applied to the inlet port(s) of these valves, there will always be an open flow path of air from the inlet to one of the valve outlets. A method to exhaust this trapped air pressure must be installed into the system so all air pressure can be removed from valve or system before performing service or mainte- nance to valve.

8.ARO 3-POSITION, 4-WAY VALVES: To actuate this type of ARO valve, either a double solenoid, double remote air pilot pressure or manual operation is used. When the valve actua- tor has shifted the valve, air pressure applied at the inlet port(s) will flow thru the valve to one of the two outlet ports. When the valve is not in a shifted position, the valve will auto- matically move to a center position. ARO valves can be either closed center or open center type and will reveal the following characteristics when the valve is in the center position:

a.OPEN CENTER VALVES: When this type ARO valve is in the center position, the inlet port(s) is blocked and the two outlet ports are open to the exhaust port(s) of the valve. With this type valve, in the center position, air pressure is not present at either outlet port. Do not use this type ARO valve if exhausting the air pressure from the valve will cause hazardous or dangerous condition.

b.CLOSED CENTER VALVES: When this type valve is in the center position, all inlet, outlet and exhaust ports are blocked. Do not use this type valve if having the air pressure blocked at the port(s) may cause a hazardous or danger- ous condition in the application, installation and / or servic- ing of an ARO valve. These valves must not be used to con- trol load holding devices without an additional mechanical positive stop on the holding device.

2 OF 12 H Series Valves