Installation Instructions D60 D65 09 24 21

Durastroke Model 60 & 65 Series Pneumatic ActuatorInstallation & Maintenance Instructions INSTALLATIONInstallation of Durastroke 60 & 65 Series pneumatic actuator is a simple three-step process consisting of mounting the actuator, attachment to load and connection of air line(s). Before starting installation, inspect the actuator and contents of the shipping carton to ensure all required parts are present. Check the following:  Clevis is present at the end of travel stem?  The following hardware is present on the pivot mount: 1. Two (2) 1/2” flat washers. 2. One (1) 1/2-16 nylon insert locking nutA) Mounting The Actuator:1. The actuator can be mounted in either a vertical or almost horizontal position. The actuator should not be installed horizontal or at a downward slope to prevent water from running inside the housing into the mechanism and diaphragm. 2. A ½” diameter hole in the mounting bracket, cooler wall panel or host structure is required for attachment of the pivot mount. 3. Loose fit the lever arm to the torque tube (the pipe that rotates to drive the louvers open and closed) and the clevis at the base of the actuator stem. Using the bolt projecting from the pivot mount, mark the location of the hole to be drilled. Drill a ½” diameter hole. Remove the nylon insert nut and one flat washer from the mounting bolt and insert the bolt through the just drilled hole. Install one flat washer and then firmly tighten the nylon insert nut on the mounting bolt. 4. Leave the lever arm clamp loose at the torque tube for the moment. You may need to rotate the torque tube by hand before final tightening is done.B) Air Line Connection(s):The actuator is shipped with a thread protector pushed into the 1/4” NPT inlet port located at the center of the top cap. 1. Remove the cover and using Teflon tape or non-hardening pipe compound, install a 1/4” threaded adapter to the inlet port then connect ¼” or 3/8” air line to adapter. The air pressure in this line should be regulated between 30-40 psig.C) Connecting The Linkage:1. In most cases**, the torque tube lever arm will be preset at the factory to drive the louver either “Fail Open” or “Fail Closed” upon loss of air and / or actuator retraction. As a result, connection of the linkage will be a simple matter of manually situating the louver blades and actuator stem to the correct position and then attaching the lever arm to the clevis (at the base of the actuator stem). To determine how the actuator and louver blades should be positioned, please note the following instructions: “Fail Open” Louvers  Stroke actuator to fully extended and manually set louver to fully closed position before connecting louver lever arm & link to actuator clevis. b. “Fail Closed” Louvers  Ensure actuator is completely retracted and manually set louvers to fully closed position before connecting louver lever arm & link to actuator clevis.