AIR TORQUE
Via Alla Campagna n.1 * I - 24060 Costa di Mezzate (BG)
Phone: 0039-035-682299 * Fax: 0039-035-687791
e-mail: info@airtorque.it * http://www.airtorque.it
Older data sheets are invalid.
Maintenance
0901e
The 4th Generation
Maintenance
CONTENT
1) GENERAL
2) SAFETY NOTICE
3) WORKING CONDITIONS AND TECHNICAL DATA
4) OPERATING FUNCTION AND DIRECTION OF ROTATION
5) ACTUATOR INSTALLATION INSTRUCTION
6) MAINTENANCE INSTRUCTION
7) STORAGE INSTRUCTION
1) GENERAL
This instruction manual contains important information regarding the installation, operation, main-
tenance and storage for AIR TORQUE rack and pinion pneumatic actuators. Please read these
instructions carefully and save them for future reference. It is important that only properly trained
personnel disassemble/assemble the actuator.
2) SAFETY NOTICE
•It is important that the actuator should only be used within pressure limits indicated in our techni-
cal specifications.
•Operating the actuator over pressure limits will damage internal parts as well as cause damage
to the housing.
•Operating the actuator over temperature limits will damage internal and external components
(disassembly of spring return actuator may become dangerous).
•Operating the actuator in corrosive environments with incorrect protection may damage the
internal and external parts.
•Do not disassemble individual spring cartridges. Disassembly may result in personal injury. For fur-
ther information contact Air Torque.
•Isolate all air lines and make sure that actuator air connection is vented before installation or ser-
vicing of the actuator.
• Do not remove end caps or disassemble the actuator while the actuator is pressurised.
•Before installing onto a valve make sure that the rotation of the valve and the actuator are the
same and that the position indicator orientation is also correct.
•If the actuator is incorporated in a system or used within safety devices or circuits, the customer
shall ensure that the national and local safety laws and regulations are observed.
3) WORKING CONDITIONS AND TECHNICAL DATA
• Operating media:
Dry or lubricated air or inert/non-corrosive gases provided they are compatible with internal actu-
ator parts and lubricant. The operating media must have a dew point equal to –20°C (-4°F) or at
least 10°C below the ambient temperature. The maximum particle size must not exceed 30 µm.
• Supply pressure:
The maximum supply pressure is 8 Bar (116 PSI).
Generally for Double Acting and Spring Return actuator the supply pressure is: from 2.5 Bar (36 PSI)
minimum to 8 Bar (116 PSI) maximum.
• Operating Temperature:
Standard product from –20
o
C (-4
o
F) to +80
o
C (+176
o
F).
Low temperature LT actuator with silicon "O'' rings from -40
o
C (-40
o
F) to +80
o
C (+176
o
F).
High temperature HT actuator with FPM "O” rings from –15
o
C (+5
o
F) to +150
o
C (+300
o
F)
Caution: For low and high temperature service, special grease is required. Please contact AIR
TORQUE for each application. High and low temperature will vary the output torque of the
actuator.
Modifications reserved. Date 02.2000.
No guarantee for accuracy.
