FNW AC Series Installation, Operation & Maintenance Instructions Manual

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
AC-SERIES
ACTUATOR
PNEUMATIC RACK & PINION ACTUATOR

1. INTRODUCTION

This instruction manual includes installation, operation, and maintenance information for FNW AC-Series Pneumatic Rack & Pinion
Actuators. Please read these instructions carefully and save them for future reference. It is important that only properly trained personnel
disassemble or assemble the actuator.

2. GENERAL PRODUCT DESCRIPTION

The FNW AC-Series Pneumatic Rack & Pinion Actuator is a double acting or spring return system designed for the actuation of ¼ turn
valves or ¼ turn applications. This actuator includes a top mount multifunction indicator and open-close stop adjustment as standard.
Additional design features ensure a long cycle life and low maintenance actuator.

3. CAUTION/IMPORTANT SAFETY WARNINGS

• Only authorized and properly trained personnel should perform installation and maintenance of the actuator. Proper PPE
should be used as required.
• For correct and safe operation, pneumatic actuators must be sized adequately and with sufficient safety margin of torque
output for the correct operating conditions of the valve or application.
• Operating the actuator beyond its stated maximum operating limits of temperature, pressure or recommended operating
media, can cause damage to the internal components, actuator housing or result in personal safety risks involving death
or injury.
• Before carrying out any repair or maintenance on the actuator, make sure that the pressure supply lines and electrical
connections have been safely isolated, removed or disconnected by authorized personnel. The actuator must not be
pressurized at any time during installation as injury may result.
• Never put any part of your body in the opening or port of the controlled valve or device.
• Special attention and precautions should be observed due to the stored energy contained in the spring return pneumatic
actuators. Do not disassemble individual spring cartridges. Disassembly may result in personal injury.
• 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.
• Use only FNW recommended spare parts for maintenance.
• To ensure safety and to maintain warranty, never modify the actuator in any way not indicated in this manual without prior
approval from FNW.

4. STORAGE

ATTENTION: If the actuators are not destined for immediate use, the following storage precautions should be taken:
• Ensure the actuator is completely dry and water free.
• Protect openings of air passages by fitting the original or replacement plastic corks if required.
• If possible, leave the actuators in their packaging during storage. Actuators should be protected to safeguard against humidity,
moisture, dust, dirt, sand, mud, salt spray, sea water, or other forms of corrosive and erosive environments.
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