Axel Larsson AL 79-045U Installation & Maintenance

Ref. 5.610B_UK - 02/2010. www.axel-larsson.se
INSTALLATION/MAINTENANCE
Actuator - AL 79-045U to AL 79-801U
Installation, maintenance and operating instruction manual
for 4th generation upgrade series actuators.
- AL 79-045U to AL 79-801U
- Double acting "D" and spring return "S"
- 90° to 180° stroke
Contents
1. GENERAL
2. WARNING
3. WORKING CONDITIONS AND TECHNICAL DATA
4. OPERATING FUNCTION AND DIRECTION OF ROTATION
5. INSTALLATION INSTRUCTIONS
6) MAINTENANCE INSTRUCTIONS
7. STORAGE INSTRUCTIONS
8. LIFTING AND HANDLING
1. General
This instruction manual contains important information regarding the
installation, operation, maintenance and storage for AL 79 rack and
pinion pneumatic actuators. Please read these instructions carefully
and keep them for future reference. It is important that the use and
maintenance of the actuator is made only by properly trained person-
nel.
2. Warning
• Do not operate the actuator using inflammable, oxidizing, corrosive,
explosive or unstable gases or liquids (use only not dangerous fluids
– group 2 according to 97/26/EC directive). Moreover, for actuators
installed in potentially explosive zones, make sure that the internal
parts of the actuator do not come into contact with the external
atmosphere.
• Referring to the Machinery Directive 2006/46/EC, the actuators
can be classified as "PARTLY COMPLETED MACHINERY" (see the
DECLARATION OF INCORPORATION). Therefore the actuator can
not put into service until the machinery and/or the system, where
the actuator is incorporated, will be declared in compliance with the
requirements of the Directive 2006/42/EC.
• AL 79 actuators are designed, produced and classified according to
the ATEX Directive 94/9/EC (see actuator label and safety instruc-
tions).The use of the actuators in potential explosive atmosphere
zones has to comply with the ATEX classification indicated on the
actuator label and according to the ATEX safety instructions.
• The use, the installation and the maintenance of the AL 79 actuators
must be made by adequately trained personnel. For the use, instal-
lation and maintenance of AL 79 actuators it is recommended to
comply to the safety notice and to use proper equipment to protect
health and prevent accidents.
• It is important that the actuator is used only within the working
limits indicated in the technical specifications.
• Do not operate the actuator over temperature limits: this could da-
mage internal and external components (disassembly of spring return
actuator may become dangerous).
• Do not operate the actuator over pressure limits: this could damage
internal parts as well as cause damage to the housing and end-caps.
• Do not use the actuator in corrosive environments with incorrect
protection: this could damage the internal and external parts.
• Do not disassemble individual spring cartridges, this may result in
personal injury. If maintenance to springs is necessary, send them to
Axel Larsson.
• Close and disconnect all air supply lines and make sure that air con-
nections are vented during maintenance and installation on valve.
• Do not disassemble the actuator or remove end caps while the
actuator is pressurized.
• The 4th GENERATION Upgrade Series actuators are designed to
be used only on valves.
• Before installing the actuator onto the valve make sure that the ro-
tation direction and the position indicator are in the correct position.
• 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.
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