Single Action Scotch Yoke Pneumatic Actuator For Ball Valve ,
1. GENERAL SERVICE INFORMATION
1.1 This service procedure is offered as a guide to enable general
maintenance to be performed on FLUITECH DRG Double Acting and
Spring Return Series Pneumatic Actuators.
1.2 Normal recommended service interval for this actuator series is
NOTE: Storage time is counted as part of the service interval.
1.3 This procedure is applicable with the understanding that all
pneumatic pressure has been removed from the actuator.
1.4 Remove all piping and mounted accessories that will interfere
with the module(s) that are to be worked on.
1.5 This procedure should only be implemented by a technically
competent technician who should take care to observe good
1.6 When removing seals from seal grooves, use a commercial seal
removing tool or a small screwdriver with sharp corners rounded
1.7 All parts should be thoroughly inspected for excessive wear,
stress cracking and pitting. Attention should be directed to
threads, sealing surfaces and areas that will subjected to sliding
and rotating motion.
CAUTION: Actuator parts that reflect any of the above listed
characteristics should be replaced with new parts.
1.8 FLUITECH recommends that disassembly of the actuator modules
should be done in a clean area on a workbench.
3. DEFINITIO NS
|1||WARNING: If not observed, user incurs a high risk of severe damage
to actuator and/or fatal injury to personnel.|
|2||CAUTION: If not observed, user may incur damage to actuator and/or
injury to personnel.|
|3||NOTE: Advisory and information comments provided to assist
maintenance personnel to carry out maintenance procedures.|