Inspect the limit switch lever for wear. Replace as necessary.
Inspect the exhaust shutter for damage or wear. Repair or replace as necessary.
Replace any bearings which do not turn smoothly or have damaged seals.
Inspect the temperature probe for wear. Replace if it is not functioning properly. Have a spare probe available at
Inspect the flow switch according to the instructions in Section 3-3-1.
Inspect the exhaust inlet housing for damage or cracks in the weldment. Repair any damaged areas.
Install the flange bearings to the housing.
Slide the damper rod through the first bearing, into the housing and the exhaust shutter and through the second
Install the fasteners that hold the exhaust shutter to the damper rod.
Center the exhaust shutter in the housing and lock the flange bearing collars to the damper rod.
Install the air cylinder to the housing and the damper rod. Install the clevis pins and the retainers.
Install the limit switch onto the bracket. Check the limit switch lever. It is spring loaded to the neutral position.
The neutral position is when the exhaust shutter is open (the air cylinder is extended). When the air cylinder is
retracted, the lever should click over into the contact position.
The exhaust housing assembly can be installed onto the baghouse inlet.
Torque the fasteners holding it in place.
Install the temperature probe.
Install the flow switch.
Connect the air lines to the cylinder taking care to connect the marked line to the shaft end of the cylinder.
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